Leachate from unlined or leaky landfills can create groundwater contaminant plumes that last decades to centuries. Understanding the dynamics of leachate movement in space and time is essential for monitoring, planning and management, and assessment of risk to groundwater and surface-water resources. Over a 23.4-year period (1986–2010), the spatial extent of the Norman Landfill leachate plume increased at a rate of 7800 m2/year and expanded by 878 %, from an area of 20,800 m2 in 1986 to 203,400 m2 in 2010. A linear plume velocity of 40.2 m/year was calculated that compared favorably to a groundwater-seepage velocity of 55.2 m/year. Plume-scale hydraulic conductivity values representative of actual hydrogeological conditions in the alluvium ranged from 7.0 × 10−5 to 7.5 × 10−4 m/s, with a median of 2.0 × 10−4 m/s. Analyses of field-measured and calculated plume-scale hydraulic conductivity distributions indicate that the upper percentiles of field-measured values should be considered to assess rates of plume-scale migration, spreading, and biodegradation. A pattern of increasing Cl− concentrations during dry periods and decreasing Cl− concentrations during wet periods was observed in groundwater beneath the landfill. The opposite occurred in groundwater downgradient from the landfill; that is, Cl− concentrations in groundwater downgradient from the landfill decreased during dry periods and increased during wet periods. This pattern of changing Cl−concentrations in response to wet and dry periods indicates that the landfill retains or absorbs leachate during dry periods and produces lower concentrated leachate downgradient. During wet periods, the landfill receives more recharge which dilutes leachate in the landfill but increases leachate migration from the landfill and produces a more concentrated contaminant plume. This approach of quantifying plume expansion, migration, and concentration during variable hydrologic conditions provides increased understanding of plume behavior and migration potential and may be applied at less monitored landfill sites to evaluate potential risks of contamination to downgradient receptors.
","language":"English","publisher":"Springer","doi":"10.1007/s11270-014-2261-x","usgsCitation":"Masoner, J.R., and Cozzarelli, I.M., 2015, Spatial and temporal migration of a landfill leachate plume in alluvium: Water, Air, & Soil Pollution, v. 226, Article 18; 15 p., https://doi.org/10.1007/s11270-014-2261-x.","productDescription":"Article 18; 15 p.","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-043914","costCenters":[{"id":516,"text":"Oklahoma Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":324927,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"226","noUsgsAuthors":false,"publicationDate":"2015-02-05","publicationStatus":"PW","scienceBaseUri":"5780cebfe4b08116168223bc","contributors":{"authors":[{"text":"Masoner, Jason R. 0000-0002-4829-6379 jmasoner@usgs.gov","orcid":"https://orcid.org/0000-0002-4829-6379","contributorId":3193,"corporation":false,"usgs":true,"family":"Masoner","given":"Jason","email":"jmasoner@usgs.gov","middleInitial":"R.","affiliations":[{"id":516,"text":"Oklahoma Water Science Center","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":525640,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cozzarelli, Isabelle M. 0000-0002-5123-1007 icozzare@usgs.gov","orcid":"https://orcid.org/0000-0002-5123-1007","contributorId":1693,"corporation":false,"usgs":true,"family":"Cozzarelli","given":"Isabelle","email":"icozzare@usgs.gov","middleInitial":"M.","affiliations":[{"id":49175,"text":"Geology, Energy & Minerals Science Center","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":525639,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70178586,"text":"70178586 - 2015 - Examples of deformation-dependent flow simulations of conjunctive use with MF-OWHM","interactions":[],"lastModifiedDate":"2017-01-20T10:36:00","indexId":"70178586","displayToPublicDate":"2016-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5272,"text":"Proceedings of the International Association of Hydrological Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Examples of deformation-dependent flow simulations of conjunctive use with MF-OWHM","docAbstract":"The dependency of surface- and groundwater flows and aquifer hydraulic properties on deformation induced by changes in aquifer head is not accounted for in the standard version of MODFLOW. A new USGS integrated hydrologic model, MODFLOW-OWHM, incorporates this dependency by linking subsidence and mesh deformation with changes in aquifer transmissivity and storage coefficient, and with flows that also depend on aquifer characteristics and land-surface geometry. This new deformation-dependent approach is being used for the further development of the integrated Central Valley hydrologic model (CVHM) in California. Preliminary results from this application and from hypothetical test cases of similar systems show that changes in canal flows, stream seepage, and evapotranspiration from groundwater (ETgw) are sensitive to deformation. Deformation feedback has been shown to also have an indirect effect on conjunctive surface- and groundwater use components with increased stream seepage and streamflows influencing surface-water deliveries and return flows. In the Central Valley model, land subsidence may significantly degrade the ability of the major canals to deliver surface water from the Delta to the San Joaquin and Tulare basins. Subsidence can also affect irrigation demand and ETgw, which, along with altered surface-water supplies, causes a feedback response resulting in changed estimates of groundwater pumping for irrigation. This modeling feature also may improve the impact assessment of dewatering-induced land subsidence/uplift (following irrigation pumping or coal-seam gas extraction) on surface receptors, inter-basin transfers, and surface infrastructure integrity.
","language":"English","publisher":"Copernicus Publications","doi":"10.5194/piahs-372-449-2015","usgsCitation":"Hanson, R.T., Traum, J.A., Boyce, S.E., Schmid, W., and Hughes, J.D., 2015, Examples of deformation-dependent flow simulations of conjunctive use with MF-OWHM: Proceedings of the International Association of Hydrological Sciences, v. 372, p. 449-453, https://doi.org/10.5194/piahs-372-449-2015.","productDescription":"5 p.","startPage":"449","endPage":"453","ipdsId":"IP-065067","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":471515,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/piahs-372-449-2015","text":"Publisher Index Page"},{"id":333531,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"372","publishingServiceCenter":{"id":1,"text":"Sacramento PSC"},"noUsgsAuthors":false,"publicationDate":"2015-11-12","publicationStatus":"PW","scienceBaseUri":"58833023e4b0d00231637794","contributors":{"authors":[{"text":"Hanson, Randall T. 0000-0002-9819-7141 rthanson@usgs.gov","orcid":"https://orcid.org/0000-0002-9819-7141","contributorId":801,"corporation":false,"usgs":true,"family":"Hanson","given":"Randall","email":"rthanson@usgs.gov","middleInitial":"T.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":654469,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Traum, Jonathan A. 0000-0002-4787-3680 jtraum@usgs.gov","orcid":"https://orcid.org/0000-0002-4787-3680","contributorId":4780,"corporation":false,"usgs":true,"family":"Traum","given":"Jonathan","email":"jtraum@usgs.gov","middleInitial":"A.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":654470,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Boyce, Scott E. 0000-0003-0626-9492 seboyce@usgs.gov","orcid":"https://orcid.org/0000-0003-0626-9492","contributorId":4766,"corporation":false,"usgs":true,"family":"Boyce","given":"Scott","email":"seboyce@usgs.gov","middleInitial":"E.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":654471,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schmid, Wolfgang","contributorId":140408,"corporation":false,"usgs":false,"family":"Schmid","given":"Wolfgang","email":"","affiliations":[{"id":6624,"text":"University of Arizona, Laboratory of Tree-Ring Research","active":true,"usgs":false}],"preferred":false,"id":654472,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hughes, Joseph D. 0000-0003-1311-2354 jdhughes@usgs.gov","orcid":"https://orcid.org/0000-0003-1311-2354","contributorId":2492,"corporation":false,"usgs":true,"family":"Hughes","given":"Joseph","email":"jdhughes@usgs.gov","middleInitial":"D.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true}],"preferred":true,"id":654473,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70175740,"text":"70175740 - 2015 - Karst of the Mid-Atlantic region in Maryland, West Virginia, and Virginia","interactions":[],"lastModifiedDate":"2016-08-31T11:31:15","indexId":"70175740","displayToPublicDate":"2016-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Karst of the Mid-Atlantic region in Maryland, West Virginia, and Virginia","docAbstract":"The Mid-Atlantic region hosts some of the most mature karst landscapes in North America, developed in highly deformed rocks within the Piedmont and Valley and Ridge physiographic provinces. This guide describes a three-day excursion to examine karst development in various carbonate rocks by following Interstate 70 west from Baltimore across the eastern Piedmont, across the Frederick Valley, and into the Great Valley proper. The localities were chosen in order to examine the structural and lithological controls on karst feature development in marble, limestone, and dolostone rocks with an eye toward the implications for ancient landscape evolution, as well as for modern subsidence hazards. A number of caves will be visited, including two commercial caverns that reveal strikingly different histories of speleogenesis. Links between karst landscape development, hydrologic dynamics, and water resource sustainability will also be emphasized through visits to locally important springs. Recent work on quantitative dye tracing, spring water geochemistry, and groundwater modeling reveal the interaction between shallow and deep circulation of groundwater that has given rise to the modern karst landscape. Geologic and karst feature mapping conducted with the benefit of lidar data help reveal the strong bedrock structural controls on karst feature development, and illustrate the utility of geologic maps for assessment of sinkhole susceptibility.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Tripping from the Fall Line: Field Excursions for the GSA Annual Meeting, Baltimore, 2015","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Geological Society of America","doi":"10.1130/2015.0040(11)","usgsCitation":"Doctor, D.H., Weary, D.J., Brezinski, D.K., Orndorff, R.C., and Spangler, L.E., 2015, Karst of the Mid-Atlantic region in Maryland, West Virginia, and Virginia, chap. of Tripping from the Fall Line: Field Excursions for the GSA Annual Meeting, Baltimore, 2015, v. 40, p. 425-484, https://doi.org/10.1130/2015.0040(11).","productDescription":"60 p.","startPage":"425","endPage":"484","ipdsId":"IP-066715","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":328116,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"40","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57c7ffb7e4b0f2f0cebfc29e","contributors":{"editors":[{"text":"Brezinski, David K.","contributorId":49428,"corporation":false,"usgs":true,"family":"Brezinski","given":"David","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":647612,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Halka, Jeffrey","contributorId":96033,"corporation":false,"usgs":true,"family":"Halka","given":"Jeffrey","email":"","affiliations":[],"preferred":false,"id":647613,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Ortt, Richard A. Jr.","contributorId":174166,"corporation":false,"usgs":false,"family":"Ortt","given":"Richard","suffix":"Jr.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":647614,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Doctor, Daniel H. 0000-0002-8338-9722 dhdoctor@usgs.gov","orcid":"https://orcid.org/0000-0002-8338-9722","contributorId":2037,"corporation":false,"usgs":true,"family":"Doctor","given":"Daniel","email":"dhdoctor@usgs.gov","middleInitial":"H.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":646258,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Weary, David J. 0000-0002-6115-6397 dweary@usgs.gov","orcid":"https://orcid.org/0000-0002-6115-6397","contributorId":545,"corporation":false,"usgs":true,"family":"Weary","given":"David","email":"dweary@usgs.gov","middleInitial":"J.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":646259,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brezinski, David K.","contributorId":49428,"corporation":false,"usgs":true,"family":"Brezinski","given":"David","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":646260,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Orndorff, Randall C. 0000-0002-8956-5803 rorndorf@usgs.gov","orcid":"https://orcid.org/0000-0002-8956-5803","contributorId":2739,"corporation":false,"usgs":true,"family":"Orndorff","given":"Randall","email":"rorndorf@usgs.gov","middleInitial":"C.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":501,"text":"Office of Science Quality and Integrity","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":646261,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Spangler, Lawrence E. 0000-0003-3928-8809 spangler@usgs.gov","orcid":"https://orcid.org/0000-0003-3928-8809","contributorId":973,"corporation":false,"usgs":true,"family":"Spangler","given":"Lawrence","email":"spangler@usgs.gov","middleInitial":"E.","affiliations":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"preferred":true,"id":646262,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70177916,"text":"70177916 - 2015 - Accelerating advances in continental domain hydrologic modeling","interactions":[],"lastModifiedDate":"2017-02-13T13:53:00","indexId":"70177916","displayToPublicDate":"2015-12-31T18:30:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Accelerating advances in continental domain hydrologic modeling","docAbstract":"In the past, hydrologic modeling of surface water resources has mainly focused on simulating the hydrologic cycle at local to regional catchment modeling domains. There now exists a level of maturity among the catchment, global water security, and land surface modeling communities such that these communities are converging toward continental domain hydrologic models. This commentary, written from a catchment hydrology community perspective, provides a review of progress in each community toward this achievement, identifies common challenges the communities face, and details immediate and specific areas in which these communities can mutually benefit one another from the convergence of their research perspectives. Those include: (1) creating new incentives and infrastructure to report and share model inputs, outputs, and parameters in data services and open access, machine-independent formats for model replication or reanalysis; (2) ensuring that hydrologic models have: sufficient complexity to represent the dominant physical processes and adequate representation of anthropogenic impacts on the terrestrial water cycle, a process-based approach to model parameter estimation, and appropriate parameterizations to represent large-scale fluxes and scaling behavior; (3) maintaining a balance between model complexity and data availability as well as uncertainties; and (4) quantifying and communicating significant advancements toward these modeling goals.
","language":"English","publisher":"American Geophysical Union","doi":"10.1002/2015WR017498","usgsCitation":"Archfield, S.A., Clark, M., Arheimer, B., Hay, L.E., McMillan, H., Kiang, J.E., Seibert, J., Hakala, K., Bock, A.R., Wagener, T., Farmer, W.H., Andreassian, V., Attinger, S., Viglione, A., Knight, R., Markstrom, S.L., and Over, T.M., 2015, Accelerating advances in continental domain hydrologic modeling: Water Resources Research, v. 51, no. 12, p. 10078-10091, https://doi.org/10.1002/2015WR017498.","productDescription":"14 p.","startPage":"10078","endPage":"10091","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-069653","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":29789,"text":"John Wesley Powell Center for Analysis and Synthesis","active":true,"usgs":true}],"links":[{"id":471535,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/2015wr017498","text":"Publisher Index Page"},{"id":330412,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"12","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2015-12-31","publicationStatus":"PW","scienceBaseUri":"5811c0f4e4b0f497e79a5a8b","contributors":{"authors":[{"text":"Archfield, Stacey A. 0000-0002-9011-3871 sarch@usgs.gov","orcid":"https://orcid.org/0000-0002-9011-3871","contributorId":1874,"corporation":false,"usgs":true,"family":"Archfield","given":"Stacey","email":"sarch@usgs.gov","middleInitial":"A.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":502,"text":"Office of Surface Water","active":true,"usgs":true}],"preferred":true,"id":652204,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clark, Martyn","contributorId":176319,"corporation":false,"usgs":false,"family":"Clark","given":"Martyn","affiliations":[],"preferred":false,"id":652205,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arheimer, Berit","contributorId":176320,"corporation":false,"usgs":false,"family":"Arheimer","given":"Berit","email":"","affiliations":[],"preferred":false,"id":652206,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hay, Lauren E. 0000-0003-3763-4595 lhay@usgs.gov","orcid":"https://orcid.org/0000-0003-3763-4595","contributorId":1287,"corporation":false,"usgs":true,"family":"Hay","given":"Lauren","email":"lhay@usgs.gov","middleInitial":"E.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":652207,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McMillan, Hilary","contributorId":176321,"corporation":false,"usgs":false,"family":"McMillan","given":"Hilary","email":"","affiliations":[],"preferred":false,"id":652208,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kiang, Julie E. 0000-0003-0653-4225 jkiang@usgs.gov","orcid":"https://orcid.org/0000-0003-0653-4225","contributorId":2179,"corporation":false,"usgs":true,"family":"Kiang","given":"Julie","email":"jkiang@usgs.gov","middleInitial":"E.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true},{"id":502,"text":"Office of Surface Water","active":true,"usgs":true}],"preferred":true,"id":652209,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Seibert, Jan","contributorId":176322,"corporation":false,"usgs":false,"family":"Seibert","given":"Jan","email":"","affiliations":[],"preferred":false,"id":652210,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Hakala, Kirsti","contributorId":176327,"corporation":false,"usgs":false,"family":"Hakala","given":"Kirsti","email":"","affiliations":[],"preferred":false,"id":652211,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Bock, Andrew R. 0000-0001-7222-6613 abock@usgs.gov","orcid":"https://orcid.org/0000-0001-7222-6613","contributorId":4580,"corporation":false,"usgs":true,"family":"Bock","given":"Andrew","email":"abock@usgs.gov","middleInitial":"R.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":652212,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Wagener, Thorsten","contributorId":176323,"corporation":false,"usgs":false,"family":"Wagener","given":"Thorsten","email":"","affiliations":[],"preferred":false,"id":652213,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Farmer, William H. 0000-0002-2865-2196 wfarmer@usgs.gov","orcid":"https://orcid.org/0000-0002-2865-2196","contributorId":4374,"corporation":false,"usgs":true,"family":"Farmer","given":"William","email":"wfarmer@usgs.gov","middleInitial":"H.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":502,"text":"Office of Surface Water","active":true,"usgs":true}],"preferred":true,"id":652214,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Andreassian, Vazken","contributorId":176324,"corporation":false,"usgs":false,"family":"Andreassian","given":"Vazken","email":"","affiliations":[],"preferred":false,"id":652215,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Attinger, Sabine","contributorId":176325,"corporation":false,"usgs":false,"family":"Attinger","given":"Sabine","email":"","affiliations":[],"preferred":false,"id":652216,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Viglione, Alberto","contributorId":176326,"corporation":false,"usgs":false,"family":"Viglione","given":"Alberto","email":"","affiliations":[],"preferred":false,"id":652217,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Knight, Rodney 0000-0001-9588-0167 rrknight@usgs.gov","orcid":"https://orcid.org/0000-0001-9588-0167","contributorId":152422,"corporation":false,"usgs":true,"family":"Knight","given":"Rodney","email":"rrknight@usgs.gov","affiliations":[{"id":581,"text":"Tennessee Water Science Center","active":true,"usgs":true},{"id":24708,"text":"Lower Mississippi-Gulf Water Science Center","active":true,"usgs":true}],"preferred":true,"id":652218,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Markstrom, Steven L. 0000-0001-7630-9547 markstro@usgs.gov","orcid":"https://orcid.org/0000-0001-7630-9547","contributorId":146553,"corporation":false,"usgs":true,"family":"Markstrom","given":"Steven","email":"markstro@usgs.gov","middleInitial":"L.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":652219,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Over, Thomas M. 0000-0001-8280-4368 tmover@usgs.gov","orcid":"https://orcid.org/0000-0001-8280-4368","contributorId":1819,"corporation":false,"usgs":true,"family":"Over","given":"Thomas","email":"tmover@usgs.gov","middleInitial":"M.","affiliations":[{"id":344,"text":"Illinois Water Science Center","active":true,"usgs":true}],"preferred":true,"id":652220,"contributorType":{"id":1,"text":"Authors"},"rank":17}]}} ,{"id":70160033,"text":"sir20155174 - 2015 - Groundwater and surface-water interaction and effects of pumping in a complex glacial-sediment aquifer, phase 2, east-central Massachusetts","interactions":[],"lastModifiedDate":"2016-01-05T07:59:04","indexId":"sir20155174","displayToPublicDate":"2015-12-31T10:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2015-5174","title":"Groundwater and surface-water interaction and effects of pumping in a complex glacial-sediment aquifer, phase 2, east-central Massachusetts","docAbstract":"The U.S. Geological Survey, in cooperation with the Town of Framingham, Massachusetts, has investigated the potential of proposed groundwater withdrawals at the Birch Road well site to affect nearby surface water bodies and wetlands, including Lake Cochituate, the Sudbury River, and the Great Meadows National Wildlife Refuge in east-central Massachusetts. In 2012, the U.S. Geological Survey developed a Phase 1 numerical groundwater model of a complex glacial-sediment aquifer to synthesize hydrogeologic information and simulate potential future pumping scenarios. The model was developed with MODFLOW-NWT, an updated version of a standard USGS numerical groundwater flow modeling program that improves solution of unconfined groundwater flow problems. The groundwater model and investigations of the aquifer improved understanding of groundwater–surface-water interaction and the effects of groundwater withdrawals on surface-water bodies and wetlands in the study area. The initial work also revealed a need for additional information and model refinements to better understand this complex aquifer system.
\nIn this second phase of the study, the original groundwater flow model was revised to improve representation of groundwater and surface-water hydrology, stabilize the model, and reduce model error. The model was simplified by reducing the number of layers from 5 to 3 and adding the MODFLOW lake package (LAK) to simulate Lake Cochituate and Pod Meadow Pond and better represent interaction between the lakes and the aquifer. Model revisions improved stability and shortened run times, allowing use of automated parameter estimation software (PEST) to further refine the model hydraulic parameters and reduce simulation errors.
\nModel simulations indicate that under average base-flow conditions, the Birch Road wells have a small effect on flow in the Sudbury River during most months, even at the maximum pumping rate of 4.9 ft3/s (3.17 Mgal/d). Maximum percent streamflow depletion in the Sudbury River caused by simulated pumping takes place during simulated drought conditions, when streamflow decreased by as much as 21 percent under maximum continuous pumping. Simulations also indicate that groundwater withdrawals at the Birch Road site could be managed so that adverse streamflow impacts are substantially ameliorated. Under the most ecologically conservative simulated drought conditions, simulated streamflow depletion was reduced from 21 percent to 3 percent by pumping at the maximum rate for 6 months rather than for 12 months. Simulations that return 10 percent of the Birch Road well withdrawals to Pod Meadow Pond indicate a modest reduction in the Sudbury River streamflow depletion and provide a larger percentage increase to streamflow just downstream of the pond. The groundwater model also indicates that well locations can have a large effect on the sustainable pumping rate and so should be chosen carefully. The model provides a tool for evaluating alternative pumping rates and schedules not included in this analysis.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20155174","collaboration":"Prepared in cooperation with the Town of Framingham, Massachusetts","usgsCitation":"Eggleston, J.R., Zarriello, P.J., and Carlson, C.S., 2015, Groundwater and surface-water interaction and effects of pumping in a complex glacial-sediment aquifer, Phase 2, east-central Massachusetts: U.S. Geological Survey Scientific Investigations Report 2015–5174, 38 p., https://dx.doi.org/10.3133/sir20155174.","productDescription":"viii, 38 p.","numberOfPages":"50","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-070584","costCenters":[{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true}],"links":[{"id":312906,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2015/5174/sir20155174.pdf","text":"Report","size":"2.42 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2015-5174"},{"id":312905,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2015/5174/coverthb.jpg"}],"country":"United States","state":"Massachusetts","city":"Framingham","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -71.40366554260254,\n 42.311021393971345\n ],\n [\n -71.40366554260254,\n 42.357085148806945\n ],\n [\n -71.36615753173828,\n 42.357085148806945\n ],\n [\n -71.36615753173828,\n 42.311021393971345\n ],\n [\n -71.40366554260254,\n 42.311021393971345\n ]\n ]\n ]\n }\n }\n ]\n}","contact":"Director, New England Water Science Center
U.S. Geological Survey
10 Bearfoot Road
Northborough, MA 01532
Or visit our Web site at:
http://newengland.water.usgs.gov
Serpentine Hot Springs is the most visited site in the Bering Land Bridge National Preserve. The hot springs have traditionally been used by the Native people of the Seward Peninsula for religious, medicinal and spiritual purposes and continue to be used in many of the same ways by Native people today. The hot springs are also popular with non-Native users from Nome and other communities, recreational users and pilots from out of the area, and hunters and hikers.
","largerWorkTitle":"US Park Service","language":"English","usgsCitation":"Nordstrom, D.K., Hasselbach, L., Ingebritsen, S.E., Skorupa, D., McCleskey, R.B., and McDermott, T.R., 2015, An environmental survey of Serpentine Hot Springs: Geology, hydrology, geochemistry, and microbiology: Natural Resource Report NPS/BELA/NRR—2015/1019, Report: xii, 90 p.","productDescription":"Report: xii, 90 p.","ipdsId":"IP-056340","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"links":[{"id":341051,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":341050,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://irma.nps.gov/DataStore/Reference/Profile/2224027"}],"country":"United States","state":"Alaska","otherGeospatial":"Seward Peninsula, Serpentine Hot Springs","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -169.87060546875,\n 64.00486735371551\n ],\n [\n -160.9716796875,\n 64.00486735371551\n ],\n [\n -160.9716796875,\n 67.82583637985663\n ],\n [\n -169.87060546875,\n 67.82583637985663\n ],\n [\n -169.87060546875,\n 64.00486735371551\n ]\n ]\n ]\n }\n }\n ]\n}","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"591426bce4b0e541a03e9606","contributors":{"authors":[{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":false,"id":572825,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hasselbach, Linda","contributorId":147827,"corporation":false,"usgs":false,"family":"Hasselbach","given":"Linda","email":"","affiliations":[{"id":6924,"text":"National Park Service, Upper Columbia Basin Network","active":true,"usgs":false}],"preferred":false,"id":572826,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ingebritsen, Steven E. 0000-0001-6917-9369 seingebr@usgs.gov","orcid":"https://orcid.org/0000-0001-6917-9369","contributorId":818,"corporation":false,"usgs":true,"family":"Ingebritsen","given":"Steven","email":"seingebr@usgs.gov","middleInitial":"E.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":572827,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Skorupa, Dana","contributorId":147828,"corporation":false,"usgs":false,"family":"Skorupa","given":"Dana","email":"","affiliations":[{"id":6765,"text":"Montana State University, Department of Land Resources and Environmental Sciences","active":true,"usgs":false}],"preferred":false,"id":572828,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McCleskey, R. Blaine 0000-0002-2521-8052 rbmccles@usgs.gov","orcid":"https://orcid.org/0000-0002-2521-8052","contributorId":147399,"corporation":false,"usgs":true,"family":"McCleskey","given":"R.","email":"rbmccles@usgs.gov","middleInitial":"Blaine","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true}],"preferred":true,"id":572829,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"McDermott, Timothy R.","contributorId":147829,"corporation":false,"usgs":false,"family":"McDermott","given":"Timothy","email":"","middleInitial":"R.","affiliations":[{"id":6765,"text":"Montana State University, Department of Land Resources and Environmental Sciences","active":true,"usgs":false}],"preferred":false,"id":572830,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70159763,"text":"70159763 - 2015 - Potential application of radiogenic isotopes and geophysical methods to understand the hydrothermal dystem of the Upper Geyser Basin, Yellowstone National Park","interactions":[],"lastModifiedDate":"2017-04-26T15:10:40","indexId":"70159763","displayToPublicDate":"2015-12-31T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"seriesTitle":{"id":273,"text":"Natural Resource Report","active":false,"publicationSubtype":{"id":4}},"seriesNumber":"NPS/YELL/NRR—2015/1077","title":"Potential application of radiogenic isotopes and geophysical methods to understand the hydrothermal dystem of the Upper Geyser Basin, Yellowstone National Park","docAbstract":"Numerous geochemical and geophysical studies have been conducted at Yellowstone National Park to better understand the hydrogeologic processes supporting the thermal features of the Park. This report provides the first 87Sr/86Sr and 234U/238U data for thermal water from the Upper Geyser Basin (UGB) intended to evaluate whether heavy radiogenic isotopes might provide insight to sources of groundwater supply and how they interact over time and space. In addition, this report summarizes previous geophysical studies made at Yellowstone National Park and provides suggestions for applying non-invasive ground and airborne studies to better understand groundwater flow in the subsurface of the UGB. \r\nMultiple samples from Old Faithful, Aurum, Grand, Oblong, and Daisy geysers characterized previously for major-ion concentrations and isotopes of water (δ2H, δ18O, and 3H) were analyzed for Sr and U isotopes. Concentrations of dissolved Sr and U are low (4.3–128 ng g-1 Sr and 0.026–0.0008 ng g-1 U); consequently only 87Sr/86Sr data are reported for most samples. Values of 87Sr/86Sr for most geysers remained uniform between April and September 2007, but show large increases in all five geysers between late October 2007 and early April, 2008. By late summer of 2008, 87Sr/86Sr values returned to values similar to those observed a year earlier. Similar patterns are not present in major-ion data measured on the same samples. Furthermore, large geochemical differences documented between geysers are not observed in 87Sr/86Sr data, although smaller differences between sites may be present. Sr-isotope data are consistent with a stratified hydrologic system where water erupted in spring and summer of 2007 and summer of 2008 equilibrated with local intracaldera rhyolite flows at shallower depths. Water erupted between October 2007 and April 2008 includes greater amounts of groundwater that circulated deep enough to acquire a radiogenic 87Sr/86Sr, most likely from Archean basement rocks. Details of how the shallow and deep components interact and mechanisms causing these interactions remain unknown, but the data demonstrate the usefulness of obtaining Sr-isotope data from future sample campaigns. \r\nGeophysical methods that would be useful for characterization of the UGB subsurface properties and geothermal system include electromagnetic (EM), gravity, and ambient seismic. A suite of ground-based EM methods could be used in a synergistic combination together with airborne EM surveys to provide data for a range of spatial scales and resolutions. Existing thermal data for the shallow subsurface could be used to relate ground and airborne EM survey data to locations of geothermal fluids near the surface. Gravity surveys would be useful for mapping subsurface density anomalies and possibly monitoring changes in degree of saturation with groundwater. Ambient seismic surveys would be useful for estimating the thickness of unconsolidated deposits that contain the shallow groundwater system. \r\nA study that combines radiogenic isotope tracers with geophysical methods has the potential to better characterize the geothermal workings in the UGB. Insights gained could lead to a better understanding of the geothermal system and how Park infrastructure may cause perturbations. Measurements of radiogenic isotopes from multiple geysers and pools in localized areas within the UGB that are coupled with data from geophysical surveys would help refine conceptual models of mixing between deep- and shallow-derived subsurface fluids.","language":"English","publisher":"National Park Service","usgsCitation":"Paces, J.B., Long, A.J., and Koth, K.R., 2015, Potential application of radiogenic isotopes and geophysical methods to understand the hydrothermal dystem of the Upper Geyser Basin, Yellowstone National Park: Natural Resource Report NPS/YELL/NRR—2015/1077, Report: viii, 33 p.; Appendixes A & B.","productDescription":"Report: viii, 33 p.; Appendixes A & B","ipdsId":"IP-068244","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":340475,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":311583,"type":{"id":15,"text":"Index Page"},"url":"https://irma.nps.gov/App/Reference/Profile/2224966/"}],"country":"United States","state":"Wyoming","otherGeospatial":"Yellowstone National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.060791015625,\n 43.878097874251736\n ],\n [\n -109.70947265625,\n 43.878097874251736\n ],\n [\n -109.70947265625,\n 45.00365115687186\n ],\n [\n -111.060791015625,\n 45.00365115687186\n ],\n [\n -111.060791015625,\n 43.878097874251736\n ]\n ]\n ]\n }\n }\n ]\n}","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5901b1bde4b0c2e071a99ba6","contributors":{"authors":[{"text":"Paces, James B. 0000-0002-9809-8493 jbpaces@usgs.gov","orcid":"https://orcid.org/0000-0002-9809-8493","contributorId":2514,"corporation":false,"usgs":true,"family":"Paces","given":"James","email":"jbpaces@usgs.gov","middleInitial":"B.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":580366,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Long, Andrew J. 0000-0001-7385-8081 ajlong@usgs.gov","orcid":"https://orcid.org/0000-0001-7385-8081","contributorId":989,"corporation":false,"usgs":true,"family":"Long","given":"Andrew","email":"ajlong@usgs.gov","middleInitial":"J.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true},{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":580367,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Koth, Karl R. kkoth@usgs.gov","contributorId":4817,"corporation":false,"usgs":true,"family":"Koth","given":"Karl","email":"kkoth@usgs.gov","middleInitial":"R.","affiliations":[{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":580368,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70142172,"text":"70142172 - 2015 - Hydrologic response for a high-elevation storm in the South Dakota Black Hills","interactions":[],"lastModifiedDate":"2017-10-12T20:00:12","indexId":"70142172","displayToPublicDate":"2015-12-31T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":5422,"text":"Internal Report","active":true,"publicationSubtype":{"id":1}},"seriesNumber":"2015-01","title":"Hydrologic response for a high-elevation storm in the South Dakota Black Hills","docAbstract":"A group of thunderstorms produced >4 in of rain during four periods of progressively more intense rainfall across a small part of a relatively high-elevation area of the northern Black Hills on 5 August 2014. The resulting hydrologic response was noteworthy in two very small headwater drainage basins, where the measured peak flows are by far the largest—relative to drainage area—ever documented for the high-elevation Limestone Plateau area. However, peak flows attenuated quickly in a downstream direction owing to the storms tracking perpendicular to the drainage direction, moderately dry antecedent conditions, and progressive widening of the valley bottoms.","language":"English","publisher":"National Oceanic and Atmospheric Administration/National Weather Service","usgsCitation":"Bunkers, M.J., Smith, M., Driscoll, D.G., and Hoogestraat, G., 2015, Hydrologic response for a high-elevation storm in the South Dakota Black Hills: Internal Report 2015-01, 21 p.","productDescription":"21 p.","ipdsId":"IP-061903","costCenters":[{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true},{"id":34685,"text":"Dakota Water Science Center","active":true,"usgs":true}],"links":[{"id":342373,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":298208,"type":{"id":11,"text":"Document"},"url":"https://www.crh.noaa.gov/images/unr/soo/reports/2015-01/NWSUNR-Report-2015-01.pdf"}],"country":"United States","state":"South Dakota","otherGeospatial":"Black Hills","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"properties\":{},\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-104.30213928222658,44.28257044667387],[-104.28291320800781,44.28109570897681],[-104.28153991699219,44.268804788566165],[-104.21424865722656,44.26831309827903],[-104.21424865722656,44.29043508918887],[-104.17304992675781,44.29141809546585],[-104.17373657226562,44.283553584572715],[-104.13116455078125,44.283553584572715],[-104.13253784179686,44.18072670287775],[-104.05494689941406,44.181711543549135],[-104.06318664550781,43.75869670502334],[-104.09065246582033,43.742824651868574],[-104.07691955566406,43.72099370605267],[-104.09065246582033,43.713053207315824],[-104.07142639160156,43.6852531754461],[-104.07142639160156,43.66141431780774],[-104.09614562988281,43.66340125095973],[-104.08790588378906,43.645516485269276],[-104.06044006347658,43.62961444423518],[-104.04396057128908,43.54605968763826],[-103.98628234863281,43.518182328624455],[-103.95606994628906,43.468369280971785],[-103.88465881347656,43.408539390911386],[-103.84071350097656,43.39856199103026],[-103.79676818847655,43.39257476235771],[-103.76380920410156,43.340660668598005],[-103.75213623046875,43.34016127896536],[-103.74870300292969,43.33067209551502],[-103.74458312988281,43.34665302379894],[-103.74320983886719,43.356638968029486],[-103.7384033203125,43.356139709840726],[-103.73908996582031,43.37460952707158],[-103.73359680175781,43.41252989075731],[-103.73085021972656,43.43646736841952],[-103.76655578613281,43.43048388638647],[-103.79951477050781,43.43048388638647],[-103.82148742675781,43.45640803582802],[-103.83522033691406,43.460395380488336],[-103.8434600830078,43.47634212965924],[-103.8050079345703,43.49029208393122],[-103.78852844238281,43.488299430538795],[-103.76655578613281,43.498262040099405],[-103.75556945800783,43.51021500212031],[-103.78028869628906,43.520173995892904],[-103.79676818847655,43.53212261888175],[-103.82423400878906,43.53013134607789],[-103.82148742675781,43.5082230061379],[-103.83796691894531,43.484313926535094],[-103.86268615722656,43.478335177486144],[-103.88191223144531,43.488299430538795],[-103.89289855957031,43.53809604282301],[-103.90663146972655,43.53809604282301],[-103.96156311035156,43.54008705264584],[-103.97529602050781,43.55203173091177],[-103.97529602050781,43.569944310356306],[-103.98902893066408,43.59978677447334],[-104.01100158691406,43.619673531511516],[-104.03022766113281,43.64352896028985],[-104.03572082519531,43.66340125095973],[-104.02748107910156,43.69518323793136],[-104.03572082519531,43.70709714273098],[-104.02198791503906,43.72099370605267],[-104.02748107910156,43.770597982574934],[-104.00550842285158,43.750761204595804],[-103.9917755126953,43.74480888870276],[-103.9917755126953,43.72893315253811],[-103.96430969238281,43.73091784974365],[-103.94508361816405,43.70709714273098],[-103.98078918457031,43.6912114102249],[-103.97254943847656,43.67929434880928],[-103.95057678222658,43.667374919984404],[-103.91624450683594,43.667374919984404],[-103.9141845703125,43.66091757424481],[-103.89839172363281,43.66290452383666],[-103.89839172363281,43.64203827340191],[-103.91075134277344,43.64104446159409],[-103.90525817871092,43.62166184556696],[-103.89427185058594,43.62464419335915],[-103.89701843261717,43.57193426821773],[-103.85581970214844,43.571436784916386],[-103.85513305664062,43.56447158721811],[-103.83247375488281,43.56447158721811],[-103.83110046386719,43.561486255932145],[-103.82148742675781,43.561486255932145],[-103.809814453125,43.561486255932145],[-103.80638122558594,43.56546666477244],[-103.79745483398438,43.56447158721811],[-103.79676818847655,43.55750558409851],[-103.77754211425781,43.55850077671243],[-103.77754211425781,43.561486255932145],[-103.77479553222656,43.563974042277],[-103.69926452636719,43.563974042277],[-103.69651794433594,43.55451990763498],[-103.68141174316406,43.55402228050878],[-103.67317199707031,43.56198382141969],[-103.62167358398438,43.56646172588961],[-103.62030029296875,43.535607188089735],[-103.6017608642578,43.536104967254566],[-103.59626770019531,43.520173995892904],[-103.67866516113281,43.520671902437606],[-103.67866516113281,43.492284671583754],[-103.65806579589844,43.49178653083377],[-103.65737915039062,43.479331676747684],[-103.63677978515625,43.47883342917123],[-103.63815307617188,43.448432557680064],[-103.53309631347656,43.448432557680064],[-103.55506896972655,43.42051010168392],[-103.62922668457031,43.42051010168392],[-103.67591857910156,43.420011369312384],[-103.67935180664061,43.404049764314415],[-103.69720458984375,43.40454862814641],[-103.69789123535156,43.39157683340036],[-103.71574401855469,43.39007990915454],[-103.71711730957031,43.313188139196406],[-103.73222351074219,43.312688523654586],[-103.73085021972656,43.30469411639206],[-103.6951446533203,43.30469411639206],[-103.66767883300781,43.2966986576723],[-103.6566925048828,43.27870503125269],[-103.6182403564453,43.280704585930835],[-103.64845275878905,43.30069651846324],[-103.63471984863281,43.30069651846324],[-103.61549377441408,43.31268852365456],[-103.59901428222656,43.31268852365456],[-103.55232238769531,43.30269535028553],[-103.55850219726562,43.284203648496025],[-103.51181030273438,43.27820513231556],[-103.50288391113281,43.284703498148474],[-103.47885131835938,43.29120116988416],[-103.46099853515624,43.28770250981427],[-103.45069885253906,43.29370008957712],[-103.4307861328125,43.29619890659104],[-103.42735290527344,43.30119623257966],[-103.42391967773438,43.32118142926661],[-103.43696594238281,43.34265818605291],[-103.43696594238281,43.352644787504495],[-103.42323303222656,43.35763747208392],[-103.42391967773438,43.368619932243256],[-103.41224670410156,43.36462654040097],[-103.3978271484375,43.37061652957767],[-103.41224670410156,43.380099469356374],[-103.40469360351562,43.39107786275974],[-103.40126037597656,43.39756416066494],[-103.43147277832031,43.406544042393634],[-103.46031188964844,43.418515147548554],[-103.50151062011719,43.4175176458317],[-103.50288391113281,43.44045602777552],[-103.50288391113281,43.458401741026194],[-103.49189758300781,43.482321075924304],[-103.48915100097656,43.5082230061379],[-103.47816467285156,43.51619059561272],[-103.46443176269531,43.53013134607789],[-103.44520568847656,43.53809604282301],[-103.44795227050781,43.58586213224808],[-103.41773986816406,43.58785156410688],[-103.41773986816406,43.569944310356306],[-103.40126037597656,43.56795428674552],[-103.3600616455078,43.57193426821773],[-103.35937499999999,43.59431676355149],[-103.3428955078125,43.597300467515375],[-103.34358215332031,43.60973097491503],[-103.34152221679688,43.624147145668076],[-103.35662841796875,43.630111446719226],[-103.36280822753906,43.6276263932016],[-103.4417724609375,43.628123412124616],[-103.458251953125,43.63806292753483],[-103.48297119140625,43.63905678866053],[-103.48915100097656,43.64949133795468],[-103.50288391113281,43.64949133795468],[-103.49739074707031,43.82065657651688],[-103.5296630859375,43.819170291885584],[-103.53034973144531,43.82511520841798],[-103.53790283203125,43.835517387886],[-103.57704162597656,43.83254552160589],[-103.57841491699217,43.855821179763],[-103.52760314941406,43.855821179763],[-103.53034973144533,43.83205019617054],[-103.4918975830078,43.830068853318785],[-103.4918975830078,43.82561059140757],[-103.34014892578125,43.82709671571044],[-103.33808898925781,43.84690817091638],[-103.3319091796875,43.847403373019226],[-103.33053588867188,43.8389843781596],[-103.32710266113281,43.85334547758478],[-103.33877563476562,43.86324766961987],[-103.33946228027344,43.8835420221887],[-103.32778930664062,43.8835420221887],[-103.32984924316406,43.892449554844134],[-103.304443359375,43.89195472686543],[-103.304443359375,43.906797777763856],[-103.31954956054688,43.90729248239987],[-103.32160949707031,43.93004445112047],[-103.33122253417969,43.93004445112047],[-103.32984924316406,43.9349893800415],[-103.33946228027344,43.9349893800415],[-103.33877563476562,43.95278771972178],[-103.33259582519531,43.95377636012689],[-103.33122253417969,43.95031604675417],[-103.31954956054688,43.949821699825534],[-103.30718994140625,43.95476498408514],[-103.31062316894531,43.963661859597536],[-103.32092285156249,43.96613297748065],[-103.33877563476562,43.967121395851485],[-103.34083557128906,43.99380247478102],[-103.33122253417969,43.9942964557587],[-103.33465576171876,44.055024757735985],[-103.35113525390625,44.05403780323783],[-103.34976196289064,44.08215956046803],[-103.33259582519531,44.083146046165986],[-103.33396911621094,44.09547572946637],[-103.35250854492186,44.09547572946637],[-103.35319519042969,44.0811730583207],[-103.37242126464844,44.0811730583207],[-103.37173461914062,44.12357779664234],[-103.39439392089844,44.125549369807686],[-103.39439392089844,44.140334071142775],[-103.37928771972656,44.14279782818058],[-103.35731506347656,44.14230508499824],[-103.34152221679688,44.14821773175327],[-103.34152221679688,44.15462243076731],[-103.33534240722656,44.15708559147226],[-103.33534240722656,44.169892369723534],[-103.35319519042969,44.169399852738124],[-103.35182189941405,44.17481731337691],[-103.35662841796875,44.17629471627438],[-103.35731506347656,44.18269636776942],[-103.35182189941405,44.18663550013902],[-103.36418151855469,44.190082025040525],[-103.37104797363281,44.19106670942566],[-103.37242126464844,44.213709909702025],[-103.39164733886719,44.212233444529716],[-103.39439392089844,44.2269964305193],[-103.40606689453124,44.2269964305193],[-103.40950012207031,44.2309326016155],[-103.41361999511719,44.230440594623865],[-103.41361999511719,44.24175571484553],[-103.42597961425781,44.24175571484553],[-103.42666625976562,44.25060950862162],[-103.43353271484375,44.25060950862162],[-103.43215942382812,44.299772984537455],[-103.4534454345703,44.299772984537455],[-103.45413208007812,44.33170718680922],[-103.46031188964844,44.33121602301527],[-103.46168518066405,44.327777761284445],[-103.47335815429688,44.327286564583844],[-103.47335815429688,44.34447600166519],[-103.46923828124999,44.34693122419762],[-103.46923828124999,44.357242035876354],[-103.48983764648438,44.35773298166116],[-103.48983764648438,44.372459442456396],[-103.50975036621094,44.372459442456396],[-103.51043701171875,44.386200799061896],[-103.55026245117188,44.38669150215206],[-103.5516357421875,44.39405155488211],[-103.56948852539062,44.39356091349481],[-103.56880187988283,44.40092010238232],[-103.590087890625,44.40042951858466],[-103.59077453613281,44.430347602378845],[-103.64982604980469,44.42887657909302],[-103.64913940429686,44.416616611940846],[-103.70887756347658,44.41563570350104],[-103.70887756347658,44.43181858864192],[-103.77479553222656,44.43132826400122],[-103.78097534179686,44.43083793524685],[-103.78166198730467,44.4377021634654],[-103.79264831542969,44.43721188818857],[-103.7933349609375,44.44603621377982],[-103.80088806152344,44.44505579897742],[-103.79951477050781,44.43672160879806],[-103.81050109863283,44.4377021634654],[-103.81050109863283,44.430347602378845],[-103.82904052734375,44.42887657909302],[-103.831787109375,44.448487178796235],[-103.83453369140625,44.44456558540569],[-103.84552001953125,44.4440753677203],[-103.84552001953125,44.453388800301774],[-103.84002685546875,44.45289865666288],[-103.84071350097656,44.459270203098846],[-103.85169982910155,44.459270203098846],[-103.85032653808594,44.465151013519645],[-103.85787963867188,44.465151013519645],[-103.86543273925783,44.45976029325941],[-103.89976501464844,44.46074046123939],[-103.89495849609375,44.467601176361136],[-103.90045166015625,44.473481147578276],[-103.91487121582031,44.473481147578276],[-103.91624450683594,44.477400799288866],[-103.92105102539062,44.47936052641368],[-103.92242431640625,44.47446108518852],[-103.92654418945312,44.473971118440275],[-103.9251708984375,44.46858121270152],[-103.91967773437501,44.46711115202032],[-103.9189910888672,44.459270203098846],[-103.92929077148436,44.45829001043651],[-103.93135070800781,44.47446108518852],[-103.96156311035156,44.4764209110438],[-103.96293640136719,44.482789890501586],[-103.97186279296875,44.483279783201866],[-103.97048950195312,44.4950359738693],[-103.97804260253906,44.49405638181744],[-103.98284912109375,44.49944393446859],[-103.99246215820311,44.49846441646551],[-103.98353576660155,44.49013784905748],[-103.98696899414062,44.473971118440275],[-104.02542114257812,44.473481147578276],[-104.01924133300781,44.48425955626105],[-104.02679443359375,44.483279783201866],[-104.02610778808594,44.4808302785626],[-104.03709411621095,44.4808302785626],[-104.03778076171875,44.47544100634373],[-104.0899658203125,44.473481147578276],[-104.09065246582033,44.4881784839461],[-104.11331176757812,44.48719877670761],[-104.11399841308595,44.4808302785626],[-104.12498474121092,44.4808302785626],[-104.12498474121092,44.4867089169177],[-104.13597106933594,44.48621905301396],[-104.13459777832031,44.473481147578276],[-104.14627075195312,44.47250119351298],[-104.1448974609375,44.45878010882453],[-104.15588378906249,44.459270203098846],[-104.15588378906249,44.44603621377982],[-104.17510986328125,44.44554600843547],[-104.17236328125,44.40042951858466],[-104.18472290039064,44.39993893067345],[-104.18197631835938,44.386200799061896],[-104.19433593749999,44.38521938054102],[-104.19090270996094,44.327286564583844],[-104.21218872070312,44.32630415884276],[-104.21356201171875,44.31156609834011],[-104.23622131347656,44.31058342934815],[-104.23553466796875,44.35626013196649],[-104.26643371582031,44.35527821160296],[-104.2657470703125,44.31156609834011],[-104.29389953613283,44.312548750879],[-104.29321289062501,44.30370428571944],[-104.30488586425781,44.30321288746801],[-104.30213928222658,44.28257044667387]]]}}]}","publishingServiceCenter":{"id":4,"text":"Rolla PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"593fa832e4b0764e6c627950","contributors":{"authors":[{"text":"Bunkers, Matthew J.","contributorId":73149,"corporation":false,"usgs":true,"family":"Bunkers","given":"Matthew","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":541662,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, Melissa","contributorId":139524,"corporation":false,"usgs":false,"family":"Smith","given":"Melissa","affiliations":[{"id":12788,"text":"National Weather Service","active":true,"usgs":false}],"preferred":false,"id":541663,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Driscoll, Daniel G. dgdrisco@usgs.gov","contributorId":1558,"corporation":false,"usgs":true,"family":"Driscoll","given":"Daniel","email":"dgdrisco@usgs.gov","middleInitial":"G.","affiliations":[{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":541661,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hoogestraat, Galen K. ghoogest@usgs.gov","contributorId":2336,"corporation":false,"usgs":true,"family":"Hoogestraat","given":"Galen K.","email":"ghoogest@usgs.gov","affiliations":[{"id":562,"text":"South Dakota Water Science Center","active":true,"usgs":true}],"preferred":false,"id":541664,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70193848,"text":"70193848 - 2015 - Decadal changes in phenology of peak abundance patterns of woodland pond salamanders in northern Wisconsin","interactions":[],"lastModifiedDate":"2017-11-07T12:30:52","indexId":"70193848","displayToPublicDate":"2015-12-31T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5541,"text":"The Journal of North American Herpetology","active":true,"publicationSubtype":{"id":10}},"title":"Decadal changes in phenology of peak abundance patterns of woodland pond salamanders in northern Wisconsin","docAbstract":"Woodland ponds are important landscape features that help sustain populations of amphibians that require this aquatic habitat for successful reproduction. Species abundance patterns often reflect site-specific differences in hydrology, physical characteristics, and surrounding vegetation. Large-scale processes such as changing land cover and environmental conditions are other potential drivers influencing amphibian populations in the Upper Midwest, but little information exists on the combined effects of these factors. We used Blue-spotted (Ambystoma laterale Hallowell) and Spotted Salamander (A. maculatum Shaw) monitoring data collected at the same woodland ponds thirteen years apart to determine if changing environmental conditions and vegetation cover in surrounding landscapes influenced salamander movement phenology and abundance. Four woodland ponds in northern Wisconsin were sampled for salamanders in April 1992-1994 and 2005-2007. While Blue-spotted Salamanders were more abundant than Spotted Salamanders in all ponds, there was no change in the numbers of either species over the years. However, peak numbers of Blue-spotted Salamanders occurred 11.7 days earlier (range: 9-14 days) in the 2000s compared to the 1990s; Spotted Salamanders occurred 9.5 days earlier (range: 3 - 13 days). Air and water temperatures (April 13- 24) increased, on average, 4.8°C and 3.7°C, respectively, between the decades regardless of pond. There were no discernible changes in canopy openness in surrounding forests between decades that would have warmed the water sooner (i.e., more light penetration). Our finding that salamander breeding phenology can vary by roughly 10 days in Wisconsin contributes to growing evidence that amphibian populations have responded to changing climate conditions by shifting life-cycle events. Managers can use this information to adjust monitoring programs and forest management activities in the surrounding landscape to avoid vulnerable amphibian movement periods. Considering direct and indirect stressors such as changing habitat and environmental conditions simultaneously to better understand trends in space and time can help improve monitoring programs for this taxa, which is at major risk of continued declines.
","language":"English","publisher":"Center for North American Amphibians and Reptiles","usgsCitation":"Donner, D.M., Ribic, C., Beck, A.J., Higgins, D., Eklund, D., and Reinecke, S., 2015, Decadal changes in phenology of peak abundance patterns of woodland pond salamanders in northern Wisconsin: The Journal of North American Herpetology, v. 1, p. 34-42.","productDescription":"19 p.","startPage":"34","endPage":"42","ipdsId":"IP-052626","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":348374,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":348372,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://jnah.cnah.org/"}],"country":"United States","state":"Wisconsin","otherGeospatial":"Medford-Park Falls District of the Chequamegon-Nicolet National Forest","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -90.37353515625,\n 45.63516665067313\n ],\n [\n -89.97528076171875,\n 45.63516665067313\n ],\n [\n -89.97528076171875,\n 45.94542053059529\n ],\n [\n -90.37353515625,\n 45.94542053059529\n ],\n [\n -90.37353515625,\n 45.63516665067313\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"1","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a07eb1de4b09af898c8ccb9","contributors":{"authors":[{"text":"Donner, Deahn M.","contributorId":171823,"corporation":false,"usgs":false,"family":"Donner","given":"Deahn","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":720914,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ribic, Christine 0000-0003-2583-1778 caribic@usgs.gov","orcid":"https://orcid.org/0000-0003-2583-1778","contributorId":147952,"corporation":false,"usgs":true,"family":"Ribic","given":"Christine","email":"caribic@usgs.gov","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true},{"id":5068,"text":"Midwest Regional Director's Office","active":true,"usgs":true}],"preferred":true,"id":720642,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Beck, Albert J.","contributorId":200078,"corporation":false,"usgs":false,"family":"Beck","given":"Albert","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":720915,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Higgins, Dale","contributorId":200079,"corporation":false,"usgs":false,"family":"Higgins","given":"Dale","email":"","affiliations":[],"preferred":false,"id":720916,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Eklund, Dan","contributorId":200080,"corporation":false,"usgs":false,"family":"Eklund","given":"Dan","email":"","affiliations":[],"preferred":false,"id":720917,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Reinecke, Susan","contributorId":200081,"corporation":false,"usgs":false,"family":"Reinecke","given":"Susan","email":"","affiliations":[],"preferred":false,"id":720918,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70191674,"text":"70191674 - 2015 - User-interactive sediment budgets in a browser: A web application for river science and management","interactions":[],"lastModifiedDate":"2018-02-20T13:56:00","indexId":"70191674","displayToPublicDate":"2015-12-31T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"displayTitle":"User-interactive sediment budgets in a browser: A web application for river science and management","title":"User-interactive sediment budgets in a browser: A web application for river science and management","docAbstract":"Decision-support tools providing accurate, near-real-time data and user-friendly interactive visualizations are of critical value to resource managers tasked with planning and carrying out management programs in their domain. Creating a system to continuously aggregate datasets and recompute derived values is difficult and error-prone when attempted by hand. To address this need for river managers in support of sediment budgeting, we have created a web-based, open source suite of tools and processes that 1) continually aggregate data of interest, 2) recompute derived values based upon latest available data, and 3) update visualizations on-demand, providing simple front-end tools available to resource managers and the public. For the first time, engineers and scientists can access these tools freely over the web to assist them with planning and adaptive management decisions.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the 5th Federal Interagency Hydrologic Modeling Conference and the 10th Federal Interagency Sedimentation Conference","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"5th Federal Interagency Hydrologic Modeling Conference and the 10th Federal Interagency Sedimentation Conference ","conferenceDate":"April 19-23, 2015","conferenceLocation":"Reno, NV","language":"English","publisher":"U.S. Department of Interior","usgsCitation":"Sibley, D.M., Topping, D., Hines, M., and Garner, B.D., 2015, User-interactive sediment budgets in a browser: A web application for river science and management, in Proceedings of the 5th Federal Interagency Hydrologic Modeling Conference and the 10th Federal Interagency Sedimentation Conference, Reno, NV, April 19-23, 2015, p. 595-605.","productDescription":"11 p.","startPage":"595","endPage":"605","ipdsId":"IP-076433","costCenters":[{"id":5054,"text":"Office of Water Information","active":true,"usgs":true}],"links":[{"id":351830,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":346747,"type":{"id":15,"text":"Index Page"},"url":"https://acwi.gov/sos/pubs/3rdJFIC/index.html"}],"publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5afeeb10e4b0da30c1bfc644","contributors":{"authors":[{"text":"Sibley, David M. dmsibley@usgs.gov","contributorId":4813,"corporation":false,"usgs":true,"family":"Sibley","given":"David","email":"dmsibley@usgs.gov","middleInitial":"M.","affiliations":[{"id":160,"text":"Center for Integrated Data Analytics","active":false,"usgs":true},{"id":5054,"text":"Office of Water Information","active":true,"usgs":true}],"preferred":true,"id":713025,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Topping, David J. 0000-0002-2104-4577 dtopping@usgs.gov","orcid":"https://orcid.org/0000-0002-2104-4577","contributorId":197244,"corporation":false,"usgs":true,"family":"Topping","given":"David J.","email":"dtopping@usgs.gov","affiliations":[],"preferred":true,"id":713026,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hines, Megan 0000-0002-9845-4849 mhines@usgs.gov","orcid":"https://orcid.org/0000-0002-9845-4849","contributorId":4783,"corporation":false,"usgs":true,"family":"Hines","given":"Megan","email":"mhines@usgs.gov","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true},{"id":160,"text":"Center for Integrated Data Analytics","active":false,"usgs":true},{"id":5054,"text":"Office of Water Information","active":true,"usgs":true},{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":true,"id":713027,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Garner, Bradley D. 0000-0002-6912-5093 bdgarner@usgs.gov","orcid":"https://orcid.org/0000-0002-6912-5093","contributorId":2133,"corporation":false,"usgs":true,"family":"Garner","given":"Bradley","email":"bdgarner@usgs.gov","middleInitial":"D.","affiliations":[{"id":5054,"text":"Office of Water Information","active":true,"usgs":true}],"preferred":true,"id":713028,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70189952,"text":"70189952 - 2015 - Groundwater: The disregarded component in lake water and nutrient budgets, Part 1: Effects of groundwater on hydrology","interactions":[],"lastModifiedDate":"2017-08-01T14:35:16","indexId":"70189952","displayToPublicDate":"2015-12-31T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Groundwater: The disregarded component in lake water and nutrient budgets, Part 1: Effects of groundwater on hydrology","docAbstract":"Lake eutrophication is a large and growing problem in many parts of the world, commonly due to anthropogenic sources of\nnutrients. Improved quantification of nutrient inputs is required to address this problem, including better determination of\nexchanges between groundwater and lakes. This first of a two-part review provides a brief history of the evolution of the study of\ngroundwater exchange with lakes, followed by a listing of the most commonly used methods for quantifying this exchange.\nRates of exchange between lakes and groundwater compiled from the literature are statistically summarized for both exfiltration\n(flow from groundwater to a lake) and infiltration (flow from a lake to groundwater), including per cent contribution of\ngroundwater to lake-water budgets. Reported rates of exchange between groundwater and lakes span more than five orders of\nmagnitude. Median exfiltration is 0.74 cm/day, and median infiltration is 0.60 cm/day. Exfiltration ranges from near 0% to 94%\nof input terms in lake-water budgets, and infiltration ranges from near 0% to 91% of loss terms. Median values for exfiltration\nand infiltration as percentages of input and loss terms of lake-water budgets are 25% and 35%, respectively. Quantification of the\ngroundwater term is somewhat method dependent, indicating that calculating the groundwater component with multiple methods\ncan provide a better understanding of the accuracy of estimates. The importance of exfiltration to a lake budget ranges widely for\nlakes less than about 100 ha in area but generally decreases with increasing lake area, particularly for lakes that exceed 100 ha in\narea. No such relation is evident for lakes where infiltration occurs, perhaps because of the smaller sample size. Copyright ©\n2014 John Wiley & Sons, Ltd.","language":"English","publisher":"Wiley","doi":"10.1002/hyp.10403","usgsCitation":"Rosenberry, D.O., Lewandowski, J., Meinikmann, K., and Nutzmann, G., 2015, Groundwater: The disregarded component in lake water and nutrient budgets, Part 1: Effects of groundwater on hydrology: Hydrological Processes, v. 29, no. 13, p. 2895-2921, https://doi.org/10.1002/hyp.10403.","productDescription":"27 p.","startPage":"2895","endPage":"2921","ipdsId":"IP-053819","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":344509,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"13","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2015-01-08","publicationStatus":"PW","scienceBaseUri":"59819315e4b0e2f5d463b7a1","contributors":{"authors":[{"text":"Rosenberry, Donald O. 0000-0003-0681-5641 rosenber@usgs.gov","orcid":"https://orcid.org/0000-0003-0681-5641","contributorId":1312,"corporation":false,"usgs":true,"family":"Rosenberry","given":"Donald","email":"rosenber@usgs.gov","middleInitial":"O.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":706861,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lewandowski, Jorg","contributorId":195317,"corporation":false,"usgs":false,"family":"Lewandowski","given":"Jorg","email":"","affiliations":[],"preferred":false,"id":706862,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meinikmann, Karin","contributorId":195318,"corporation":false,"usgs":false,"family":"Meinikmann","given":"Karin","email":"","affiliations":[],"preferred":false,"id":706863,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nutzmann, Gunnar","contributorId":195319,"corporation":false,"usgs":false,"family":"Nutzmann","given":"Gunnar","email":"","affiliations":[],"preferred":false,"id":706864,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70189993,"text":"70189993 - 2015 - Underpressure in Mesozoic and Paleozoic rock units in the Midcontinent of the United States","interactions":[],"lastModifiedDate":"2017-08-01T15:37:13","indexId":"70189993","displayToPublicDate":"2015-12-31T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":605,"text":"AAPG Bulletin","printIssn":"0149-1423","active":true,"publicationSubtype":{"id":10}},"title":"Underpressure in Mesozoic and Paleozoic rock units in the Midcontinent of the United States","docAbstract":"Potentiometric surfaces for Paleozoic strata, based on water well levels and selected drill-stem tests, reveal the control on hydraulic head exerted by outcrops in eastern Kansas and Oklahoma. From outcrop in the east, the westward climb of hydraulic head is much less than that of the land surface, with heads falling so far below land surface that the pressure:depth ratio in eastern Colorado is less than 5.7 kPa/m (0.25 psi/ft). Permian evaporites separate the Paleozoic hydrogeologic units from a Lower Cretaceous (Dakota Group) aquifer, and a highly saline brine plume pervading Paleozoic units in central Kansas and Oklahoma is attributed to dissolution of Permian halite. Underpressure also exists in the Lower Cretaceous hydrogeologic unit in the Denver Basin, which is hydrologically separate from the Paleozoic units. The data used to construct the seven potentiometric surfaces were also used to construct seven maps of pressure:depth ratio. These latter maps are a function of the differences among hydraulic head, land-surface elevation, and formation elevation. As a consequence, maps of pressure:depth ratio reflect the interplay of three topologies that evolved independently with time. As underpressure developed, gas migrated in response to the changing pressure regime, most notably filling the Hugoton gas field in southwestern Kansas. The timing of underpressure development was determined by the timing of outcrop exposure and tilting of the Great Plains. Explorationists in western Kansas and eastern Colorado should not be surprised if a reservoir is underpressured; rather, they should be surprised if it is not.","language":"English","publisher":"AAPG","doi":"10.1306/04171514169","usgsCitation":"Nelson, P.H., Gianoutsos, N.J., and Drake II, R.M., 2015, Underpressure in Mesozoic and Paleozoic rock units in the Midcontinent of the United States: AAPG Bulletin, v. 99, no. 10, p. 1861-1892, https://doi.org/10.1306/04171514169.","productDescription":"32 p.","startPage":"1861","endPage":"1892","ipdsId":"IP-059467","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":344519,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arkansas, Colorado, Kansas, Iowa, Missouri, Nebraska, New Mexico, Oklahoma, Texas, Wyoming","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -107.2705078125,\n 43.45291889355465\n ],\n [\n -107.4462890625,\n 33.211116472416855\n ],\n [\n -91.8896484375,\n 33.00866349457558\n ],\n [\n -92.28515625,\n 43.51668853502906\n ],\n [\n -107.2705078125,\n 43.45291889355465\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"99","issue":"10","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59819315e4b0e2f5d463b79f","contributors":{"authors":[{"text":"Nelson, Philip H. pnelson@usgs.gov","contributorId":862,"corporation":false,"usgs":true,"family":"Nelson","given":"Philip","email":"pnelson@usgs.gov","middleInitial":"H.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":707030,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gianoutsos, Nicholas J. 0000-0002-6510-6549 ngianoutsos@usgs.gov","orcid":"https://orcid.org/0000-0002-6510-6549","contributorId":3607,"corporation":false,"usgs":true,"family":"Gianoutsos","given":"Nicholas","email":"ngianoutsos@usgs.gov","middleInitial":"J.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":707031,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Drake II, Ronald M. 0000-0002-1770-4667 rmdrake@usgs.gov","orcid":"https://orcid.org/0000-0002-1770-4667","contributorId":172671,"corporation":false,"usgs":true,"family":"Drake II","given":"Ronald","email":"rmdrake@usgs.gov","middleInitial":"M.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":707032,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70154897,"text":"70154897 - 2015 - Biology and ecology of Neosho Smallmouth Bass and the genetically distinct Ouachita lineage","interactions":[],"lastModifiedDate":"2017-05-16T11:08:03","indexId":"70154897","displayToPublicDate":"2015-12-31T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Biology and ecology of Neosho Smallmouth Bass and the genetically distinct Ouachita lineage","docAbstract":"We reviewed the published and gray literature associated with Neosho Smallmouth Bass and the genetically-distinct Ouachita lineage. Substantial inter-stream variation appears to occur among these populations, particularly related to age. The Neosho subspecies is more abundant, grows faster, and lives longer than the genetically-distinct Ouachita lineage. Recruitment is highly variable among streams for both populations and appears to be related to some undescribed aspects of hydrology but also likely reflect bias due to sampling gear. Information on annual and seasonal trends is lacking for the Neosho subspecies and the Ouachita lineages, particularly as related to the spawning period. Conservation efforts for these lineages might benefit from agencies partnering to achieve goals that extend beyond a particular agencies responsibilities and state boundaries. Recognition of spatial and temporal considerations, combined with a better understanding of the population dynamics as related to abundance, growth, mortality and reproduction would benefit the creation of more effective conservation and management strategies for genetically-distinct populations of Smallmouth Bass.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Black Bass diversity: Multidisciplinary science for conservation","language":"English","publisher":"American Fisheries Society","publisherLocation":"Bethesda, MD","usgsCitation":"Brewer, S.K., and Long, J.M., 2015, Biology and ecology of Neosho Smallmouth Bass and the genetically distinct Ouachita lineage, chap. of Black Bass diversity: Multidisciplinary science for conservation, p. 281-296.","productDescription":"16 p.","startPage":"281","endPage":"296","ipdsId":"IP-045943","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":341343,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":341341,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://fisheries.org/bookstore/all-titles/afs-symposia/54082c/"}],"publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"591c0fcbe4b0a7fdb43ddef8","contributors":{"editors":[{"text":"Tringali, Michael D.","contributorId":191189,"corporation":false,"usgs":false,"family":"Tringali","given":"Michael","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":695298,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Long, James M. 0000-0002-8658-9949 jmlong@usgs.gov","orcid":"https://orcid.org/0000-0002-8658-9949","contributorId":3453,"corporation":false,"usgs":true,"family":"Long","given":"James","email":"jmlong@usgs.gov","middleInitial":"M.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":695299,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Birdsong, Timothy W.","contributorId":172473,"corporation":false,"usgs":false,"family":"Birdsong","given":"Timothy","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":695300,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Allen, Michael S.","contributorId":67375,"corporation":false,"usgs":true,"family":"Allen","given":"Michael","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":695301,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Brewer, Shannon K. 0000-0002-1537-3921 skbrewer@usgs.gov","orcid":"https://orcid.org/0000-0002-1537-3921","contributorId":2252,"corporation":false,"usgs":true,"family":"Brewer","given":"Shannon","email":"skbrewer@usgs.gov","middleInitial":"K.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true},{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":695297,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Long, James M. 0000-0002-8658-9949 jmlong@usgs.gov","orcid":"https://orcid.org/0000-0002-8658-9949","contributorId":3453,"corporation":false,"usgs":true,"family":"Long","given":"James","email":"jmlong@usgs.gov","middleInitial":"M.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":564324,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70176290,"text":"70176290 - 2015 - Head-of-tide bottleneck of particulate material transport from watersheds to estuaries","interactions":[],"lastModifiedDate":"2016-09-07T15:46:49","indexId":"70176290","displayToPublicDate":"2015-12-31T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Head-of-tide bottleneck of particulate material transport from watersheds to estuaries","docAbstract":"We measured rates of sediment, C, N, and P accumulation at four floodplain sites spanning the nontidal through oligohaline Choptank and Pocomoke Rivers, Maryland, USA. Ceramic tiles were used to collect sediment for a year and sediment cores were collected to derive decadal sedimentation rates using 137Cs. The results showed highest rates of short- and long-term sediment, C, N, and P accumulation occurred in tidal freshwater forests at the head of tide on the Choptank and the oligohaline marsh of the Pocomoke River, and lowest rates occurred in the downstream tidal freshwater forests in both rivers. Presumably, watershed material was mostly trapped at the head of tide, and estuarine material was trapped in oligohaline marshes. This hydrologic transport bottleneck at the head of tide stores most available watershed sediment, C, N, and P creating a sediment shadow in lower tidal freshwater forests potentially limiting their resilience to sea level rise.
","language":"English","publisher":"AGU Publications","doi":"10.1002/2015GL066830","usgsCitation":"Ensign, S., Noe, G.E., Hupp, C.R., and Skalak, K., 2015, Head-of-tide bottleneck of particulate material transport from watersheds to estuaries: Geophysical Research Letters, v. 42, no. 24, p. 10671-10679, https://doi.org/10.1002/2015GL066830.","productDescription":"9 p.","startPage":"10671","endPage":"10679","ipdsId":"IP-070264","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":471541,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/2015gl066830","text":"Publisher Index Page"},{"id":328341,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"42","issue":"24","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2015-12-23","publicationStatus":"PW","scienceBaseUri":"57d13a3ce4b0571647cf8dd9","contributors":{"authors":[{"text":"Ensign, Scott H.","contributorId":81397,"corporation":false,"usgs":true,"family":"Ensign","given":"Scott H.","affiliations":[],"preferred":false,"id":648207,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Noe, Gregory E. 0000-0002-6661-2646 gnoe@usgs.gov","orcid":"https://orcid.org/0000-0002-6661-2646","contributorId":139100,"corporation":false,"usgs":true,"family":"Noe","given":"Gregory","email":"gnoe@usgs.gov","middleInitial":"E.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true}],"preferred":true,"id":648206,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hupp, Cliff R. 0000-0003-1853-9197 crhupp@usgs.gov","orcid":"https://orcid.org/0000-0003-1853-9197","contributorId":2344,"corporation":false,"usgs":true,"family":"Hupp","given":"Cliff","email":"crhupp@usgs.gov","middleInitial":"R.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":648208,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Skalak, Katherine 0000-0003-4122-1240 kskalak@usgs.gov","orcid":"https://orcid.org/0000-0003-4122-1240","contributorId":3990,"corporation":false,"usgs":true,"family":"Skalak","given":"Katherine","email":"kskalak@usgs.gov","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":648209,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","interactions":[{"subject":{"id":70156593,"text":"ofr20131280D - 2015 - Database creation, data quality assessment, and geochemical maps (phase V, deliverable 59)—Final report on compilation and validation of geochemical data","indexId":"ofr20131280D","publicationYear":"2015","noYear":false,"chapter":"D","title":"Database creation, data quality assessment, and geochemical maps (phase V, deliverable 59)—Final report on compilation and validation of geochemical data"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":1},{"subject":{"id":70156594,"text":"ofr20131280J - 2015 - Permissive tracts for sediment-hosted lead-zinc-silver deposits in the Islamic Republic of Mauritania (phase V, deliverable 73)","indexId":"ofr20131280J","publicationYear":"2015","noYear":false,"chapter":"J","title":"Permissive tracts for sediment-hosted lead-zinc-silver deposits in the Islamic Republic of Mauritania (phase V, deliverable 73)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":2},{"subject":{"id":70156595,"text":"ofr20131280J1 - 2012 - Permissive tracts for sediment-hosted lead-zinc-silver deposits in Mauritania (phase V, deliverable 72): Chapter J1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280J1","publicationYear":"2012","noYear":false,"chapter":"J1","title":"Permissive tracts for sediment-hosted lead-zinc-silver deposits in Mauritania (phase V, deliverable 72): Chapter J1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":3},{"subject":{"id":70156596,"text":"ofr20131280K1 - 2012 - Permissive tracts for sediment-hosted copper deposits in Mauritania (phase V, deliverable 74): Chapter K1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280K1","publicationYear":"2012","noYear":false,"chapter":"K1","title":"Permissive tracts for sediment-hosted copper deposits in Mauritania (phase V, deliverable 74): Chapter K1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":4},{"subject":{"id":70156597,"text":"ofr20131280K - 2015 - Mineral potential for sediment-hosted copper deposits in the Islamic Republic of Mauritania (phase V, deliverable 75)","indexId":"ofr20131280K","publicationYear":"2015","noYear":false,"chapter":"K","title":"Mineral potential for sediment-hosted copper deposits in the Islamic Republic of Mauritania (phase V, deliverable 75)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":5},{"subject":{"id":70156598,"text":"ofr20131280L - 2015 - Mineral potential for volcanogenic massive sulfide deposits in the Islamic Republic of Mauritania, (phase V, deliverable 77)","indexId":"ofr20131280L","publicationYear":"2015","noYear":false,"chapter":"L","title":"Mineral potential for volcanogenic massive sulfide deposits in the Islamic Republic of Mauritania, (phase V, deliverable 77)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":6},{"subject":{"id":70156599,"text":"ofr20131280O - 2015 - Algoma-, Superior-, and oolitic-type iron deposits of the Islamic Republic of Mauritania (phase V, deliverable 83)","indexId":"ofr20131280O","publicationYear":"2015","noYear":false,"chapter":"O","title":"Algoma-, Superior-, and oolitic-type iron deposits of the Islamic Republic of Mauritania (phase V, deliverable 83)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":7},{"subject":{"id":70156600,"text":"ofr20131280R - 2015 - Reported industrial minerals occurrences and permissive areas for other occurrences in the Islamic Republic of Mauritania, (phase V, deliverable 89)","indexId":"ofr20131280R","publicationYear":"2015","noYear":false,"chapter":"R","title":"Reported industrial minerals occurrences and permissive areas for other occurrences in the Islamic Republic of Mauritania, (phase V, deliverable 89)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":8},{"subject":{"id":70156601,"text":"ofr20131280L1 - 2012 - Permissive tracts for volcanogenic massive sulfide deposits in Mauritania (phase V, deliverable 76): Chapter L1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280L1","publicationYear":"2012","noYear":false,"chapter":"L1","title":"Permissive tracts for volcanogenic massive sulfide deposits in Mauritania (phase V, deliverable 76): Chapter L1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":9},{"subject":{"id":70156602,"text":"ofr20131280O1 - 2012 - Permissive tracts for algoma-, superior-, and oolitic-type iron deposits in Mauritania (phase V, deliverable 82): Chapter O1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280O1","publicationYear":"2012","noYear":false,"chapter":"O1","title":"Permissive tracts for algoma-, superior-, and oolitic-type iron deposits in Mauritania (phase V, deliverable 82): Chapter O1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":10},{"subject":{"id":70156603,"text":"ofr20131280R1 - 2012 - Reported industrial minerals occurrences and permissive areas for other occurrences in the Islamic Republic of Mauritania (phase V deliverable 88): Chapter R1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280R1","publicationYear":"2012","noYear":false,"chapter":"R1","title":"Reported industrial minerals occurrences and permissive areas for other occurrences in the Islamic Republic of Mauritania (phase V deliverable 88): Chapter R1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":11},{"subject":{"id":70159506,"text":"ofr20131280A - 2015 - Synthesis of geological, structural, and geochronologic data (phase V, deliverable 53)","indexId":"ofr20131280A","publicationYear":"2015","noYear":false,"chapter":"A","title":"Synthesis of geological, structural, and geochronologic data (phase V, deliverable 53)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":12},{"subject":{"id":70159507,"text":"ofr20131280B - 2015 - Synthesis of geophysical data (phase V, deliverable 55)","indexId":"ofr20131280B","publicationYear":"2015","noYear":false,"chapter":"B","title":"Synthesis of geophysical data (phase V, deliverable 55)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":13},{"subject":{"id":70159508,"text":"ofr20131280C - 2015 - Hydrogeologic map of the Islamic Republic of Mauritania (phase V, deliverable 56), Synthesis of hydrologic data (phase V, deliverable 57), and chemical hydrologic map of the Islamic Republic of Mauritania (added value)","indexId":"ofr20131280C","publicationYear":"2015","noYear":false,"chapter":"C","title":"Hydrogeologic map of the Islamic Republic of Mauritania (phase V, deliverable 56), Synthesis of hydrologic data (phase V, deliverable 57), and chemical hydrologic map of the Islamic Republic of Mauritania (added value)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":14},{"subject":{"id":70159509,"text":"ofr20131280E - 2015 - Landsat maps (phase V, deliverable 60), ASTER maps (phase V, deliverable 62), ASTER_DEM maps (phase V, deliverable 63), and spectral remote sensing in support of PRISM-II mineral resource assessment project, Islamic Republic of Mauritania (phase V, deliverables 61 and 64)","indexId":"ofr20131280E","publicationYear":"2015","noYear":false,"chapter":"E","title":"Landsat maps (phase V, deliverable 60), ASTER maps (phase V, deliverable 62), ASTER_DEM maps (phase V, deliverable 63), and spectral remote sensing in support of PRISM-II mineral resource assessment project, Islamic Republic of Mauritania (phase V, deliverables 61 and 64)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":15},{"subject":{"id":70159510,"text":"ofr20131280F - 2015 - Countrywide digital elevation models for the Islamic Republic of Mauritania—SRTM and ASTER (phase V, deliverable 65)","indexId":"ofr20131280F","publicationYear":"2015","noYear":false,"chapter":"F","title":"Countrywide digital elevation models for the Islamic Republic of Mauritania—SRTM and ASTER (phase V, deliverable 65)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":16},{"subject":{"id":70159511,"text":"ofr20131280G - 2015 - Mineral potential for nickel, copper, platinum group elements(PGE), and chromium deposits hosted in ultramafic rocks in the Islamic Republic of Mauritania (phase V, deliverable 67)","indexId":"ofr20131280G","publicationYear":"2015","noYear":false,"chapter":"G","title":"Mineral potential for nickel, copper, platinum group elements(PGE), and chromium deposits hosted in ultramafic rocks in the Islamic Republic of Mauritania (phase V, deliverable 67)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":17},{"subject":{"id":70159512,"text":"ofr20131280H - 2015 - Mineral potential tracts for orogenic, Carlin-like, and epithermal gold deposits in the Islamic Republic of Mauritania, (phase V, deliverable 69)","indexId":"ofr20131280H","publicationYear":"2015","noYear":false,"chapter":"H","title":"Mineral potential tracts for orogenic, Carlin-like, and epithermal gold deposits in the Islamic Republic of Mauritania, (phase V, deliverable 69)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":18},{"subject":{"id":70159513,"text":"ofr20131280I - 2015 - Mineral potential tracts for polymetallic Pb-Zn-Cu vein deposits (phase V, deliverable 71): Chapter I in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280I","publicationYear":"2015","noYear":false,"chapter":"I","title":"Mineral potential tracts for polymetallic Pb-Zn-Cu vein deposits (phase V, deliverable 71): Chapter I in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":19},{"subject":{"id":70159514,"text":"ofr20131280P - 2015 - Mineral potential tracts for shoreline Ti-Zr placer deposits (phase V, deliverable 85): Chapter P in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280P","publicationYear":"2015","noYear":false,"chapter":"P","title":"Mineral potential tracts for shoreline Ti-Zr placer deposits (phase V, deliverable 85): Chapter P in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":20},{"subject":{"id":70159515,"text":"ofr20131280Q - 2015 - Mineral potential for incompatible element deposits hosted in pegmatites, alkaline rocks, and carbonatites in the Islamic Republic of Mauritania (phase V, deliverable 87)","indexId":"ofr20131280Q","publicationYear":"2015","noYear":false,"chapter":"Q","title":"Mineral potential for incompatible element deposits hosted in pegmatites, alkaline rocks, and carbonatites in the Islamic Republic of Mauritania (phase V, deliverable 87)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":21},{"subject":{"id":70159516,"text":"ofr20131280S - 2015 - Database of mineral deposits in the Islamic Republic of Mauritania (phase V, deliverables 90 and 91)","indexId":"ofr20131280S","publicationYear":"2015","noYear":false,"chapter":"S","title":"Database of mineral deposits in the Islamic Republic of Mauritania (phase V, deliverables 90 and 91)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":22},{"subject":{"id":70159517,"text":"ofr20131280T - 2015 - Geographic Information Systems (GIS) for la République Islamique de Mauritanie (PRISM-II) phase V (phase V, deliverable 92)","indexId":"ofr20131280T","publicationYear":"2015","noYear":false,"chapter":"T","title":"Geographic Information Systems (GIS) for la République Islamique de Mauritanie (PRISM-II) phase V (phase V, deliverable 92)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":23},{"subject":{"id":70159518,"text":"ofr20131280G1 - 2012 - Permissive tracts for nickel, copper, platinum group elements (PGE), and chromium deposits of Mauritania (phase V, deliverable 66): Chapter G1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280G1","publicationYear":"2012","noYear":false,"chapter":"G1","title":"Permissive tracts for nickel, copper, platinum group elements (PGE), and chromium deposits of Mauritania (phase V, deliverable 66): Chapter G1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":24},{"subject":{"id":70159519,"text":"ofr20131280H1 - 2012 - Mineral potential tracts for orogenic, Carlin-like, and epithermal gold deposits in the Islamic Republic of Mauritania, (phase V, deliverable 68): Chapter H1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280H1","publicationYear":"2012","noYear":false,"chapter":"H1","title":"Mineral potential tracts for orogenic, Carlin-like, and epithermal gold deposits in the Islamic Republic of Mauritania, (phase V, deliverable 68): Chapter H1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":25},{"subject":{"id":70159520,"text":"ofr20131280I1 - 2012 - Permissive tracts for orogenic and epithermal gold deposits in Mauritania (phase V, deliverable 70): Chapter I1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280I1","publicationYear":"2012","noYear":false,"chapter":"I1","title":"Permissive tracts for orogenic and epithermal gold deposits in Mauritania (phase V, deliverable 70): Chapter I1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":26},{"subject":{"id":70159521,"text":"ofr20131280N1 - 2012 - Permissive tracts for uranium deposits in Mauritania (phase V, deliverable 80): Chapter N1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280N1","publicationYear":"2012","noYear":false,"chapter":"N1","title":"Permissive tracts for uranium deposits in Mauritania (phase V, deliverable 80): Chapter N1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":27},{"subject":{"id":70159522,"text":"ofr20131280M1 - 2012 - Permissive tracts for iron oxide copper-gold deposits in Mauritania (phase V, deliverable 78 ): Chapter M1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280M1","publicationYear":"2012","noYear":false,"chapter":"M1","title":"Permissive tracts for iron oxide copper-gold deposits in Mauritania (phase V, deliverable 78 ): Chapter M1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":28},{"subject":{"id":70159523,"text":"ofr20131280Q1 - 2012 - Permissive tracts for incompatible element deposits hosted in pegmatities, alkaline rocks, and carbonatities in Mauritania (phase V, deliverable 86), Chapter Q1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280Q1","publicationYear":"2012","noYear":false,"chapter":"Q1","title":"Permissive tracts for incompatible element deposits hosted in pegmatities, alkaline rocks, and carbonatities in Mauritania (phase V, deliverable 86), Chapter Q1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":29},{"subject":{"id":70159524,"text":"ofr20131280A2 - 2015 - Structure map of Mauritania (phase V, deliverables 52a and 52b)","indexId":"ofr20131280A2","publicationYear":"2015","noYear":false,"chapter":"A2","title":"Structure map of Mauritania (phase V, deliverables 52a and 52b)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":30},{"subject":{"id":70159526,"text":"ofr20131280D1 - 2015 - Geochemistry areas and sample sites, and multielement and single element geochemistry maps of Mauritania (phase V, deliverable 58)","indexId":"ofr20131280D1","publicationYear":"2015","noYear":false,"chapter":"D1","title":"Geochemistry areas and sample sites, and multielement and single element geochemistry maps of Mauritania (phase V, deliverable 58)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":31},{"subject":{"id":70159530,"text":"ofr20131280P1 - 2012 - Permissive tracts for shoreline placer titanium deposits in Mauritania (phase V, deliverable 84): Chapter P1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)","indexId":"ofr20131280P1","publicationYear":"2012","noYear":false,"chapter":"P1","title":"Permissive tracts for shoreline placer titanium deposits in Mauritania (phase V, deliverable 84): Chapter P1 in Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":32},{"subject":{"id":70159547,"text":"ofr20131280B1 - 2015 - Crystalline basement map of Mauritania derived from filtered aeromagnetic data (deliverable 54_1), Aeromagnetic and geological structure map of Mauritania (phase V, deliverable 54_2), Maximum depth to basement map of Mauritania derived from Euler analysis of Aeromagnetic data (phase V, deliverable 54_3), and color composite image of radioelement data (added value)","indexId":"ofr20131280B1","publicationYear":"2015","noYear":false,"chapter":"B1","title":"Crystalline basement map of Mauritania derived from filtered aeromagnetic data (deliverable 54_1), Aeromagnetic and geological structure map of Mauritania (phase V, deliverable 54_2), Maximum depth to basement map of Mauritania derived from Euler analysis of Aeromagnetic data (phase V, deliverable 54_3), and color composite image of radioelement data (added value)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":33},{"subject":{"id":70160115,"text":"ofr20131280A1 - 2015 - Geologic map of Mauritania (phase V, deliverables 51a, 51b, and 51c)","indexId":"ofr20131280A1","publicationYear":"2015","noYear":false,"chapter":"A1","title":"Geologic map of Mauritania (phase V, deliverables 51a, 51b, and 51c)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":34},{"subject":{"id":70168371,"text":"ofr20131280M - 2015 - Iron oxide copper-gold deposits in the Islamic Republic of Mauritania (phase V, deliverable 79)","indexId":"ofr20131280M","publicationYear":"2015","noYear":false,"chapter":"M","title":"Iron oxide copper-gold deposits in the Islamic Republic of Mauritania (phase V, deliverable 79)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":35},{"subject":{"id":70168372,"text":"ofr20131280N - 2015 - Uranium in the Islamic Republic of Mauritania (phase V, deliverable 81)","indexId":"ofr20131280N","publicationYear":"2015","noYear":false,"chapter":"N","title":"Uranium in the Islamic Republic of Mauritania (phase V, deliverable 81)"},"predicate":"IS_PART_OF","object":{"id":70160523,"text":"ofr20131280 - 2015 - Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","indexId":"ofr20131280","publicationYear":"2015","noYear":false,"title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V"},"id":36}],"lastModifiedDate":"2016-01-04T08:51:00","indexId":"ofr20131280","displayToPublicDate":"2015-12-30T15:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2013-1280","title":"Second Projet de Renforcement Institutionnel du Secteur Minier de la République Islamique de Mauritanie (PRISM-II) Phase V","docAbstract":"In 1996, at the request of the Government of the Islamic Republic of Mauritania, a team of U.S. Geological Survey (USGS) scientists produced a strategic plan for the acquisition, improvement and modernization of multidisciplinary sets of data to support the growth of the Mauritanian minerals sector and to highlight the geological and mineral exploration potential of the country. In 1999, the Ministry of Petroleum, Energy, and Mines of the Islamic Republic of Mauritania implemented a program for the acquisition of the recommended basic geoscientific information, termed the first Projet de Renforcement Institutionnel du Secteur Minier (Project for Institutional Capacity Building in the Mining Sector, PRISM-I). As a result of the PRISM-I efforts, a great deal of new geological, geophysical, geochemical, remote sensing, and hydrological data became available for evaluation and synthesis. However, the Ministry of Petroleum, Energy, and Mines recognized that additional work was required to extract the full benefit of the data before it could be of greatest use to the international community and of benefit to the Mauritanian minerals and development sector.
\nTo achieve this benefit, the Ministry of Petroleum, Energy, and Mines implemented a second Projet de Renforcement Institutionnel du Secteur Minier (PRISM-II) in 2006 to consolidate, synthesize, and interpret all of the existing data, create a new 1:1,000,000 scale geologic map, and define the mineral resource potential of the country. A consortium in which the USGS was the lead scientific agency carried out the majority of the PRISM-II work. In 2008, the USGS Mauritania Minerals Project was interrupted due to political changes in Mauritania. PRISM-II work resumed in 2011, and was completed in 2013 with the delivery of over 40 separate written reports and plates, an access file containing the Mauritanian National Mineral Deposits Database, and an interactive GIS containing all of the multi-disciplinary data and interpretive areas of mineral resource potential in Mauritania.
\nThis report contains the USGS results of the PRISM-II Mauritania Minerals Project and is presented in cooperation with the Ministry of Petroleum, Energy, and Mines of the Islamic Republic of Mauritania. The Report is composed of separate chapters consisting of multidisciplinary interpretive reports with accompanying plates on the geology, structure, geochronology, geophysics, hydrogeology, geochemistry, remote sensing (Landsat TM and ASTER), and SRTM and ASTER digital elevation models of Mauritania. The syntheses of these multidisciplinary data formed the basis for additional chapters containing interpretive reports on 12 different commodities and deposit types known to occur in Mauritania, accompanied by countrywide mineral resource potential maps of each commodity/deposit type. The commodities and deposit types represented include: (1) Ni, Cu, PGE, and Cr deposits hosted in ultramafic rocks; (2) orogenic, Carlin-like, and epithermal gold deposits; (3) polymetallic Pb-Zn-Cu vein deposits; (4) sediment-hosted Pb-Zn-Ag deposits of the SEDEX and Mississippi Valley-type; (5) sediment-hosted copper deposits; ( 6) volcanogenic massive sulfide deposits; (7) iron oxide copper-gold deposits; (8) uranium deposits; (9) Algoma-, Superior-, and oolitic-type iron deposits; (10) shoreline Ti-Zr placer deposits; (11) incompatible element deposits hosted in pegmatites, alkaline rocks, and carbonatites, and; (12) industrial mineral deposits. Additional chapters include the Mauritanian National Mineral Deposits Database are accompanied by an explanatory text and the Mauritania Minerals Project GIS that contains all of the interpretive layers created by USGS scientists. Raw data not in the public domain may be obtained from the Ministry of Petroleum, Energy, and Mines in Nouakchott, Mauritania.
","language":"English, French","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20131280","collaboration":"Prepared in cooperation with the Ministry of Petroleum, Energy, and Mines of the Islamic Republic of Mauritania","usgsCitation":"Taylor, C.D., ed., 2015, Second projet de renforcement institutionnel du secteur minier de la République Islamique de Mauritanie (PRISM-II) phase V: U.S. Geological Survey Open-File Report 2013‒1280, 20 chaps., pages variable, pls. variable, https://dx.doi.org/10.3133/ofr20131280. [In English and French.]","productDescription":"Report: 20 Chapters; Readme; GIS and Maps; Publication Index","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-071408","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":312690,"rank":35,"type":{"id":6,"text":"Chapter"},"url":"https://pubs.usgs.gov/of/2013/1280/GIS_and_Maps/Chapter_Q1_deliverable_86-Incompatible_element_deposits_hosted_in_pegmatities_alkaline rocks_and_carbonatities","text":"Chapter Q1--Permissive Tracts for Incompatible Element Deposits Hosted in Pegmatities, Alkaline Rocks, and Carbonatities in Mauritania","size":"2.39 MB","description":"OFR 2013-1280 Chapter Q1","linkHelpText":"Director, Central Mineral and Environmental Resources Science Center
U.S. Geological Survey
Box 25046, MS-973
Denver, CO 80225
http://minerals.cr.usgs.gov/
Process-based models are widely used for rainfall-induced shallow landslide forecasting. Previous studies have successfully applied the U.S. Geological Survey’s Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability (TRIGRS) model (Baum et al. 2002) to compute infiltration-driven changes in the hillslopes’ factor of safety on small scales (i.e., tens of square kilometers). Soil data input for such models are difficult to obtain across larger regions. This work describes a novel methodology for the application of TRIGRS over broad areas with relatively uniform hydrogeological properties. The study area is a 550-km2 region in Central Italy covered by post-orogenic Quaternary sediments. Due to the lack of field data, we assigned mechanical and hydrological property values through a statistical analysis based on literature review of soils matching the local lithologies. We calibrated the model using rainfall data from 25 historical rainfall events that triggered landslides. We compared the variation of pressure head and factor of safety with the landslide occurrence to identify the best fitting input conditions. Using calibrated inputs and a soil depth model, we ran TRIGRS for the study area. Receiver operating characteristic (ROC) analysis, comparing the model’s output with a shallow landslide inventory, shows that TRIGRS effectively simulated the instability conditions in the post-orogenic complex during historical rainfall scenarios. The implication of this work is that rainfall-induced landslides over large regions may be predicted by a deterministic model, even where data on geotechnical and hydraulic properties as well as temporal changes in topography or subsurface conditions are not available.
","language":"English","publisher":"Springer-Verlag","publisherLocation":"Berlin, Germany","doi":"10.1007/s10346-015-0670-6","usgsCitation":"Gioia, E., Speranza, G., Ferretti, M., Godt, J.W., Baum, R.L., and Marincioni, F., 2015, Application of a process-based shallow landslide hazard model over a broad area in Central Italy: Landslides, p. 1-18, https://doi.org/10.1007/s10346-015-0670-6.","productDescription":"18 p.","startPage":"1","endPage":"18","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-068185","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":314712,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Italy","otherGeospatial":"Esino river basin, Marche region","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 13.276290893554688,\n 43.683763524273346\n ],\n [\n 13.047637939453123,\n 43.54058479482877\n ],\n [\n 12.946014404296875,\n 43.479331676747684\n ],\n [\n 12.816925048828125,\n 43.47210668475589\n ],\n [\n 12.774696350097654,\n 43.4574048966441\n ],\n [\n 12.775382995605469,\n 43.4374645579086\n ],\n [\n 12.78053283691406,\n 43.41801639874422\n ],\n [\n 12.772293090820312,\n 43.38783445346398\n ],\n [\n 12.77984619140625,\n 43.36312895068202\n ],\n [\n 12.814521789550781,\n 43.29494951091899\n ],\n [\n 12.823104858398438,\n 43.27770522927142\n ],\n [\n 13.016738891601562,\n 43.32967314784173\n ],\n [\n 13.399200439453125,\n 43.487303079190156\n ],\n [\n 13.485031127929688,\n 43.59083558861119\n ],\n [\n 13.486404418945312,\n 43.608736628843445\n ],\n [\n 13.276290893554688,\n 43.683763524273346\n ]\n ]\n ]\n }\n }\n ]\n}","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2015-12-30","publicationStatus":"PW","scienceBaseUri":"56a360b9e4b0b28f1183bbe2","contributors":{"authors":[{"text":"Gioia, Eleonora","contributorId":152470,"corporation":false,"usgs":false,"family":"Gioia","given":"Eleonora","email":"","affiliations":[{"id":18931,"text":"Universita Politecnica delle Marche","active":true,"usgs":false}],"preferred":false,"id":589450,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Speranza, Gabriella","contributorId":152471,"corporation":false,"usgs":false,"family":"Speranza","given":"Gabriella","email":"","affiliations":[{"id":18932,"text":"Functional Center of Marche Region's Civil Protection System","active":true,"usgs":false}],"preferred":false,"id":589451,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ferretti, Maurizio","contributorId":152472,"corporation":false,"usgs":false,"family":"Ferretti","given":"Maurizio","email":"","affiliations":[{"id":18932,"text":"Functional Center of Marche Region's Civil Protection System","active":true,"usgs":false}],"preferred":false,"id":589452,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Godt, Jonathan W. 0000-0002-8737-2493 jgodt@usgs.gov","orcid":"https://orcid.org/0000-0002-8737-2493","contributorId":1166,"corporation":false,"usgs":true,"family":"Godt","given":"Jonathan","email":"jgodt@usgs.gov","middleInitial":"W.","affiliations":[{"id":508,"text":"Office of the AD Hazards","active":true,"usgs":true},{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":589453,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Baum, Rex L. 0000-0001-5337-1970 baum@usgs.gov","orcid":"https://orcid.org/0000-0001-5337-1970","contributorId":1288,"corporation":false,"usgs":true,"family":"Baum","given":"Rex","email":"baum@usgs.gov","middleInitial":"L.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":589454,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Marincioni, Fausto","contributorId":53879,"corporation":false,"usgs":true,"family":"Marincioni","given":"Fausto","email":"","affiliations":[],"preferred":false,"id":589455,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70164512,"text":"70164512 - 2015 - Do geographically isolated wetlands influence landscape functions?","interactions":[],"lastModifiedDate":"2016-07-11T15:37:29","indexId":"70164512","displayToPublicDate":"2015-12-28T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3165,"text":"Proceedings of the National Academy of Sciences of the United States of America","active":true,"publicationSubtype":{"id":10}},"title":"Do geographically isolated wetlands influence landscape functions?","docAbstract":"Geographically isolated wetlands (GIWs), those surrounded by uplands, exchange materials, energy, and organisms with other elements in hydrological and habitat networks, contributing to landscape functions, such as flow generation, nutrient and sediment retention, and biodiversity support. GIWs constitute most of the wetlands in many North American landscapes, provide a disproportionately large fraction of wetland edges where many functions are enhanced, and form complexes with other water bodies to create spatial and temporal heterogeneity in the timing, flow paths, and magnitude of network connectivity. These attributes signal a critical role for GIWs in sustaining a portfolio of landscape functions, but legal protections remain weak despite preferential loss from many landscapes. GIWs lack persistent surface water connections, but this condition does not imply the absence of hydrological, biogeochemical, and biological exchanges with nearby and downstream waters. Although hydrological and biogeochemical connectivity is often episodic or slow (e.g., via groundwater), hydrologic continuity and limited evaporative solute enrichment suggest both flow generation and solute and sediment retention. Similarly, whereas biological connectivity usually requires overland dispersal, numerous organisms, including many rare or threatened species, use both GIWs and downstream waters at different times or life stages, suggesting that GIWs are critical elements of landscape habitat mosaics. Indeed, weaker hydrologic connectivity with downstream waters and constrained biological connectivity with other landscape elements are precisely what enhances some GIW functions and enables others. Based on analysis of wetland geography and synthesis of wetland functions, we argue that sustaining landscape functions requires conserving the entire continuum of wetland connectivity, including GIWs.
","language":"English","publisher":"Proceedings of the National Academy of Sciences","doi":"10.1073/pnas.1512650113","usgsCitation":"Cohen, M.J., Creed, I., Alexander, L., Basu, N., Calhoun, A.J., Craft, C., D’Amico, E., DeKeyser, E., Fowler, L., Golden, H., Jawitz, J.W., Kalla, P., Kirkman, L.K., Lane, C., Lang, M., Leibowitz, S.G., Lewis, D., Marton, J., McLaughlin, D.L., Mushet, D.M., Raanan-Kiperwas, H., Rains, M.C., Smith, L., and Walls, S.C., 2015, Do geographically isolated wetlands influence landscape functions?: Proceedings of the National Academy of Sciences of the United States of America, no. Early edition, 9 p., https://doi.org/10.1073/pnas.1512650113.","productDescription":"9 p.","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-063811","costCenters":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":471556,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1073/pnas.1512650113","text":"Publisher Index Page"},{"id":316753,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -93.09814453125,\n 46.042735653846506\n ],\n [\n -93.1640625,\n 45.29034662473615\n ],\n [\n -92.197265625,\n 45.35214524585177\n ],\n [\n -92.30712890625,\n 46.027481852486645\n ],\n [\n -93.09814453125,\n 46.042735653846506\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -97.80029296875,\n 46.7549166192819\n ],\n [\n -97.80029296875,\n 46.2102496001872\n ],\n [\n -96.85546875,\n 46.2102496001872\n ],\n [\n -96.96533203125,\n 46.72480037466717\n ],\n [\n -97.80029296875,\n 46.7549166192819\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -121.79443359375,\n 38.20365531807149\n ],\n [\n -121.66259765625001,\n 37.69251435532741\n ],\n [\n -121.09130859375,\n 37.814123701604466\n ],\n [\n -121.26708984374999,\n 38.26406296833964\n ],\n [\n -121.79443359375,\n 38.20365531807149\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -100.986328125,\n 34.813803317113155\n ],\n [\n -100.931396484375,\n 34.098159345215535\n ],\n [\n -99.832763671875,\n 34.15272698011818\n ],\n [\n -99.964599609375,\n 34.90395296559004\n ],\n [\n -100.986328125,\n 34.813803317113155\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -82.803955078125,\n 29.973970240516614\n ],\n [\n -82.73803710937499,\n 29.420460341013133\n ],\n [\n -81.947021484375,\n 29.49698759653577\n ],\n [\n -82.08984375,\n 29.983486718474694\n ],\n [\n -82.803955078125,\n 29.973970240516614\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -81.661376953125,\n 32.12910537866886\n ],\n [\n -81.617431640625,\n 31.662732913235317\n ],\n [\n -81.123046875,\n 31.606609719226917\n ],\n [\n -81.024169921875,\n 31.952162238024975\n ],\n [\n -81.661376953125,\n 32.12910537866886\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -78.585205078125,\n 34.642247047768535\n ],\n [\n -78.68408203124999,\n 34.20725938207231\n ],\n [\n -78.233642578125,\n 34.116352469972746\n ],\n [\n -78.134765625,\n 34.45221847282654\n ],\n [\n -78.585205078125,\n 34.642247047768535\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -71.026611328125,\n 44.933696389694674\n ],\n [\n -71.004638671875,\n 44.680371641890375\n ],\n [\n -70.6365966796875,\n 44.758436211143476\n ],\n [\n -70.72998046875,\n 45.00365115687189\n ],\n [\n -71.0430908203125,\n 45.00365115687189\n ],\n [\n -71.026611328125,\n 44.933696389694674\n ]\n ]\n ]\n }\n }\n ]\n}","issue":"Early edition","publishingServiceCenter":{"id":4,"text":"Rolla PSC"},"noUsgsAuthors":false,"publicationDate":"2016-02-08","publicationStatus":"PW","scienceBaseUri":"56bb1bc0e4b08d617f654df6","contributors":{"authors":[{"text":"Cohen, Matthew J.","contributorId":138990,"corporation":false,"usgs":false,"family":"Cohen","given":"Matthew","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":597682,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Creed, Irena F.","contributorId":81209,"corporation":false,"usgs":false,"family":"Creed","given":"Irena F.","affiliations":[{"id":27655,"text":"Department of Biology, University of Western Ontario, London, ON Canada","active":true,"usgs":false}],"preferred":false,"id":597683,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alexander, Laurie C.","contributorId":138989,"corporation":false,"usgs":false,"family":"Alexander","given":"Laurie C.","affiliations":[{"id":6914,"text":"U.S. Environmental Protection Agency","active":true,"usgs":false}],"preferred":false,"id":597684,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Basu, Nandita","contributorId":156369,"corporation":false,"usgs":false,"family":"Basu","given":"Nandita","affiliations":[{"id":20330,"text":"Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, ON N2L 3G1","active":true,"usgs":false}],"preferred":false,"id":597685,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Calhoun, Aram J.K.","contributorId":93829,"corporation":false,"usgs":false,"family":"Calhoun","given":"Aram","email":"","middleInitial":"J.K.","affiliations":[{"id":7063,"text":"University of Maine","active":true,"usgs":false}],"preferred":false,"id":597855,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Craft, Christopher","contributorId":156398,"corporation":false,"usgs":false,"family":"Craft","given":"Christopher","email":"","affiliations":[],"preferred":false,"id":597856,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"D’Amico, Ellen","contributorId":156399,"corporation":false,"usgs":false,"family":"D’Amico","given":"Ellen","email":"","affiliations":[],"preferred":false,"id":597857,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"DeKeyser, Edward S.","contributorId":138601,"corporation":false,"usgs":false,"family":"DeKeyser","given":"Edward S.","affiliations":[{"id":12459,"text":"NDSU","active":true,"usgs":false}],"preferred":false,"id":597858,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Fowler, Laurie","contributorId":156400,"corporation":false,"usgs":false,"family":"Fowler","given":"Laurie","affiliations":[{"id":17882,"text":"Odum School of Ecology, University of Georgia","active":true,"usgs":false}],"preferred":false,"id":597859,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Golden, Heather E.","contributorId":94914,"corporation":false,"usgs":true,"family":"Golden","given":"Heather E.","affiliations":[],"preferred":false,"id":597860,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Jawitz, James W.","contributorId":66725,"corporation":false,"usgs":true,"family":"Jawitz","given":"James","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":597861,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Kalla, Peter","contributorId":156429,"corporation":false,"usgs":false,"family":"Kalla","given":"Peter","email":"","affiliations":[{"id":6914,"text":"U.S. Environmental Protection Agency","active":true,"usgs":false}],"preferred":false,"id":597862,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Kirkman, L. Katherine","contributorId":156430,"corporation":false,"usgs":false,"family":"Kirkman","given":"L.","email":"","middleInitial":"Katherine","affiliations":[],"preferred":false,"id":597863,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Lane, Charles R.","contributorId":138991,"corporation":false,"usgs":false,"family":"Lane","given":"Charles R.","affiliations":[{"id":6914,"text":"U.S. Environmental Protection Agency","active":true,"usgs":false}],"preferred":false,"id":597864,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Lang, Megan","contributorId":156431,"corporation":false,"usgs":false,"family":"Lang","given":"Megan","affiliations":[{"id":7261,"text":"Department of Geographical Sciences, University of Maryland, College Park, MD, 20742","active":true,"usgs":false}],"preferred":false,"id":597865,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Leibowitz, Scott G.","contributorId":156432,"corporation":false,"usgs":false,"family":"Leibowitz","given":"Scott","email":"","middleInitial":"G.","affiliations":[{"id":6914,"text":"U.S. Environmental Protection Agency","active":true,"usgs":false}],"preferred":false,"id":597866,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Lewis, David Bruce","contributorId":156433,"corporation":false,"usgs":false,"family":"Lewis","given":"David Bruce","affiliations":[{"id":7163,"text":"University of South Florida","active":true,"usgs":false}],"preferred":false,"id":597867,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Marton, John","contributorId":156434,"corporation":false,"usgs":false,"family":"Marton","given":"John","email":"","affiliations":[],"preferred":false,"id":597868,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"McLaughlin, Daniel L.","contributorId":156435,"corporation":false,"usgs":false,"family":"McLaughlin","given":"Daniel","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":597869,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Mushet, David M. 0000-0002-5910-2744 dmushet@usgs.gov","orcid":"https://orcid.org/0000-0002-5910-2744","contributorId":1299,"corporation":false,"usgs":true,"family":"Mushet","given":"David","email":"dmushet@usgs.gov","middleInitial":"M.","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":597870,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Raanan-Kiperwas, Hadas","contributorId":156436,"corporation":false,"usgs":false,"family":"Raanan-Kiperwas","given":"Hadas","email":"","affiliations":[{"id":6914,"text":"U.S. Environmental Protection Agency","active":true,"usgs":false}],"preferred":false,"id":597871,"contributorType":{"id":1,"text":"Authors"},"rank":21},{"text":"Rains, Mark C.","contributorId":138983,"corporation":false,"usgs":false,"family":"Rains","given":"Mark","email":"","middleInitial":"C.","affiliations":[{"id":12607,"text":"Univ of South florida, School of Geosciences, Tampa FL","active":true,"usgs":false}],"preferred":false,"id":597872,"contributorType":{"id":1,"text":"Authors"},"rank":22},{"text":"Smith, Lora","contributorId":156438,"corporation":false,"usgs":false,"family":"Smith","given":"Lora","affiliations":[],"preferred":false,"id":597873,"contributorType":{"id":1,"text":"Authors"},"rank":23},{"text":"Walls, Susan C. 0000-0001-7391-9155 swalls@usgs.gov","orcid":"https://orcid.org/0000-0001-7391-9155","contributorId":2310,"corporation":false,"usgs":true,"family":"Walls","given":"Susan","email":"swalls@usgs.gov","middleInitial":"C.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":false,"id":597874,"contributorType":{"id":1,"text":"Authors"},"rank":24}]}} ,{"id":70159875,"text":"sir20155170 - 2015 - Methods for estimating flow-duration curve and low-flow frequency statistics for ungaged locations on small streams in Minnesota","interactions":[],"lastModifiedDate":"2015-12-28T12:10:56","indexId":"sir20155170","displayToPublicDate":"2015-12-24T09:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2015-5170","title":"Methods for estimating flow-duration curve and low-flow frequency statistics for ungaged locations on small streams in Minnesota","docAbstract":"Knowledge of the magnitude and frequency of low flows in streams, which are flows in a stream during prolonged dry weather, is fundamental for water-supply planning and design; waste-load allocation; reservoir storage design; and maintenance of water quality and quantity for irrigation, recreation, and wildlife conservation. This report presents the results of a statewide study for which regional regression equations were developed for estimating 13 flow-duration curve statistics and 10 low-flow frequency statistics at ungaged stream locations in Minnesota. The 13 flow-duration curve statistics estimated by regression equations include the 0.0001, 0.001, 0.02, 0.05, 0.1, 0.25, 0.50, 0.75, 0.9, 0.95, 0.99, 0.999, and 0.9999 exceedance-probability quantiles. The low-flow frequency statistics include annual and seasonal (spring, summer, fall, winter) 7-day mean low flows, seasonal 30-day mean low flows, and summer 122-day mean low flows for a recurrence interval of 10 years. Estimates of the 13 flow-duration curve statistics and the 10 low-flow frequency statistics are provided for 196 U.S. Geological Survey continuous-record streamgages using streamflow data collected through September 30, 2012.
\nThe study area includes 196 streamgages located within Minnesota and 50 miles beyond the State’s borders in North Dakota, South Dakota, Iowa, and Wisconsin. The study area was divided into five regions that were developed in a previous study using the concept of hydrologic landscape units. Geographic information system software was used to calculate 18 characteristics investigated as potential explanatory variables in regression analyses for each streamgage drainage basin. Trend analyses indicated statistically significant trends in summer 7-day low flows that were not related to precipitation patterns for 19 streamgages. For 16 of these streamgages, the streamflow record was subset using structural change analysis to identify the most recent period of record without a significant trend. The three remaining streamgages with significant trends were excluded from the final analysis because the effective period of record without a significant trend was less than 10 years.
\nBecause several streams in this study have zero flow as their minimum reported flow, weighted left-censored regression was used to analyze the flow data in an unbiased manner, with weights based on the number of years of record. A total of 115 regression equations were developed in this study to calculate flow-duration curve and low-flow frequency statistics for ungaged locations in the study area. In addition, data from 25 pairs of streamgages were used to develop drainage-area ratio equations that can be used to estimate streamflow statistics at ungaged locations on streams that have a streamgage in another location. Streamflow statistics estimated using regional regression and drainage-area ratio equations were compared among regions. For regions A, D, and E, drainagearea ratio equations were more accurate than regional regression equations for flows, but regional regression equations were more accurate for high flows. For region F, regional regression equations were consistently more accurate than drainage-area ratio equations. For region BC, the pattern in accuracies of regional regression and drainage-area ratio equations between low flows and high flows was not consistent.
\nEquations developed in this study apply only to stream locations where flows are not substantially affected by regulation, diversion, or urbanization. All equations presented in this study will be incorporated into StreamStats, a web-based geographic information system tool developed by the U.S. Geological Survey. StreamStats allows users to obtain streamflow statistics, basin characteristics, and other information for user-selected locations on streams through an interactive map.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20155170","collaboration":"Prepared in cooperation with the Minnesota Pollution Control Agency","usgsCitation":"Ziegeweid, J.R., Lorenz, D.L., Sanocki, C.A., and Czuba, C.R., 2015, Methods for estimating flow-duration curve and\nlow-flow frequency statistics for ungaged locations on small streams in Minnesota: U.S. Geological Survey Scientific\nInvestigations Report 2015–5170, 23 p., https://dx.doi.org/10.3133/sir20155170.","productDescription":"Report: vi, 23 p.; Appendix","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-046283","costCenters":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"links":[{"id":312848,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2015/5170/coverthb.jpg"},{"id":312849,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2015/5170/sir20155170.pdf","text":"Report","size":"2.13 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2015-5170"},{"id":312850,"rank":3,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2015/5170/downloads/sir20155170_table1-1.xlsx","text":"Table 1-1","size":"89.1 kB","linkFileType":{"id":3,"text":"xlsx"},"description":"SIR 2015-5170 Appendix 1"}],"country":"United States","state":"Iowa, Minnesota, North Dakota, South Dakota, Wisconsin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -97.27294921875,\n 49.023461463214126\n ],\n [\n -95.16357421875,\n 49.023461463214126\n ],\n [\n -95.16357421875,\n 49.439556958940855\n ],\n [\n -94.68017578125,\n 49.38237278700955\n ],\n [\n -94.54833984375,\n 49.081062364320736\n ],\n [\n -94.59228515625,\n 48.80686346108517\n ],\n [\n -94.28466796874999,\n 48.76343113791796\n ],\n [\n -93.8232421875,\n 48.69096039092549\n ],\n [\n -93.62548828125,\n 48.60385760823255\n ],\n [\n -93.3837890625,\n 48.67645370777654\n ],\n [\n -92.900390625,\n 48.73445537176822\n ],\n [\n -92.548828125,\n 48.61838518688487\n ],\n [\n -92.46093749999999,\n 48.472921272487824\n ],\n [\n -92.21923828124999,\n 48.4146186174932\n ],\n [\n -91.86767578124999,\n 48.31242790407178\n ],\n [\n -91.51611328125,\n 48.151428143221224\n ],\n [\n -91.14257812499999,\n 48.22467264956519\n ],\n [\n -90.76904296874999,\n 48.31242790407178\n ],\n [\n -90.63720703125,\n 48.22467264956519\n ],\n [\n -90.439453125,\n 48.180738507303836\n ],\n [\n -90.087890625,\n 48.19538740833338\n ],\n [\n -89.82421875,\n 48.09275716032736\n ],\n [\n -89.56054687499999,\n 48.019324184801185\n ],\n [\n -89.93408203124999,\n 47.84265762816538\n ],\n [\n -90.63720703125,\n 47.60616304386874\n ],\n [\n -91.12060546875,\n 47.32393057095941\n ],\n [\n -91.47216796875,\n 47.12995075666307\n ],\n [\n -91.845703125,\n 46.86019101567027\n ],\n [\n -91.82373046875,\n 46.800059446787316\n ],\n [\n -91.3623046875,\n 46.875213396722685\n ],\n [\n -90.72509765625,\n 47.14489748555398\n ],\n [\n -90.1318359375,\n 47.12995075666307\n ],\n [\n -89.8681640625,\n 47.040182144806664\n ],\n [\n -89.67041015625,\n 46.694667307773095\n ],\n [\n -89.8681640625,\n 46.27103747280261\n ],\n [\n -90.32958984375,\n 46.07323062540838\n ],\n [\n -90.90087890624999,\n 45.69083283645816\n ],\n [\n -91.14257812499999,\n 45.13555516012536\n ],\n [\n -91.1865234375,\n 44.54350521320822\n ],\n [\n -90.966796875,\n 44.008620115415354\n ],\n [\n -90.59326171875,\n 43.37311218382002\n ],\n [\n -90.46142578125,\n 42.98857645832184\n ],\n [\n -90.04394531249999,\n 42.68243539838623\n ],\n [\n -89.84619140625,\n 42.24478535602799\n ],\n [\n -90.68115234375,\n 42.04929263868686\n ],\n [\n -91.69189453125,\n 42.58544425738491\n ],\n [\n -92.04345703125,\n 43.197167282501276\n ],\n [\n -93.40576171875,\n 43.11702412135048\n ],\n [\n -95.361328125,\n 42.98857645832184\n ],\n [\n -96.39404296875,\n 42.87596410238254\n ],\n [\n -96.5478515625,\n 42.68243539838623\n ],\n [\n -97.03125,\n 42.956422511073335\n ],\n [\n -97.18505859374999,\n 43.992814500489914\n ],\n [\n -97.8662109375,\n 45.460130637921004\n ],\n [\n -97.88818359375,\n 46.36209301204985\n ],\n [\n -98.10791015625,\n 47.517200697839414\n ],\n [\n -98.15185546874999,\n 48.73445537176822\n ],\n [\n -97.80029296875,\n 48.936934954094035\n ],\n [\n -97.27294921875,\n 49.023461463214126\n ]\n ]\n ]\n }\n }\n ]\n}","contact":"Director, Minnesota Water Science Center
U.S. Geological Survey
2280 Woodale Drive
Mounds View, Minnesota 55112
http://mn.water.usgs.gov/
Federal agencies that oversee land management for much of the Snake Range in eastern Nevada, including the management of Great Basin National Park by the National Park Service, need to understand the potential extent of adverse effects to federally managed lands from nearby groundwater development. As a result, this study was developed (1) to attain a better understanding of aquifers controlling groundwater flow on the eastern side of the southern part of the Snake Range and their connection with aquifers in the valleys, (2) to evaluate the relation between surface water and groundwater along the piedmont slopes, (3) to evaluate sources for Big Springs and Rowland Spring, and (4) to assess groundwater flow from southern Spring Valley into northern Hamlin Valley. The study focused on two areas—the first, a northern area along the east side of Great Basin National Park that included Baker, Lehman, and Snake Creeks, and a second southern area that is the potential source area for Big Springs. Data collected specifically for this study included the following: (1) geologic field mapping; (2) drilling, testing, and water quality sampling from 7 test wells; (3) measuring discharge and water chemistry of selected creeks and springs; (4) measuring streambed hydraulic gradients and seepage rates from 18 shallow piezometers installed into the creeks; and (5) monitoring stream temperature along selected reaches to identify places of groundwater inflow.
\nThe Snake Range was formed by a generally normal-faulted uplift, where late Proterozoic and Cambrian siliciclastic rocks and metamorphic rocks are present at the highest altitudes and younger Paleozoic carbonate rocks are exposed along the flanks. The consolidated rocks are intruded by Jurassic to Tertiary age plutons, which are most common between the Lehman and Snake Creek drainage basins. Older Cenozoic rocks, including Oligocene volcanic rocks and Miocene sedimentary rocks, crop out locally and fill the basins that underlie Snake, Spring, and Hamlin Valleys. Younger Tertiary and Quaternary sedimentary (basin-fill) deposits overlie the older Cenozoic rocks.
\nThe rocks and deposits can be divided into three distinct aquifers. These aquifers include (1) basin-fill aquifers that consist of the permeable parts of the Cenozoic basin fill and some fractured or jointed Cenozoic volcanic rocks, (2) an upper carbonate-rock aquifer that consists of upper Paleozoic carbonate rocks overlying a regionally extensive middle Paleozoic siliciclastic confining unit, and (3) a lower carbonate-rock aquifer that consists of lower Paleozoic carbonate rocks. Secondary openings created by faults, shear zones, fractures, and, in the carbonate rocks, karst solution features, largely determine the water-transmitting properties of the volcanic- and carbonate-rock aquifers. The basin-fill aquifers are composed of a wide variety of rock types and have highly variable hydraulic properties. The three aquifers are stratigraphically and structurally heterogeneous, causing large variations in the ability to store and transmit water. The aquifers are separated by confining units in some areas and are in contact with each other in other areas, yet function as a single, composite aquifer system. Basin-fill aquifers most often overlie or adjoin the lower and upper carbonate-rock aquifers.
\nBaker, Lehman and Snake Creek drainage basins were divided into five hydrologic zones on the basis of climate, geology, and topography. The five zones, from highest to lowest altitudes, are the mountain-upland, karst-limestone, upper-piedmont, lower-piedmont, and valley-lowland zones. The primary hydrologic connection between the mountain-upland and the valley-lowland zones is streamflow. Much of the streamflow from the mountain-upland zone is generated above tree line.
\nGroundwater flow increases in the karst-limestone zone because of increased permeability caused by dissolution, which results in increased streamflow losses. Most of the increased groundwater flow is to springs near faults that form the boundary with the upper-piedmont zone. Thus, groundwater flow from the karst-limestone zone to the upper-piedmont zone was only 10 percent of the combined flow of streams and springs that exit the karst-limestone zone. About 60 percent of the water flowing from Rowland Spring in the Lehman Creek drainage basin was from streamflow losses along Baker Creek. The remaining flow from Rowland Spring comes from local recharge in the karst-limestone zone.
\nIn the upper-piedmont zone, the water table by Baker, Lehman and Snake Creeks was near the water level in the creeks for several hundred feet downstream from the karst-limestone zone. Water levels in piezometers along Snake Creek downstream from its confluence with Spring Creek were far below the streambed, indicating gravity drainage beneath this section of the creek. Estimated vertical hydraulic conductivity along a 3-mile reach of Snake Creek downstream of this confluence was 0.5 foot per day, which was an order of magnitude less than that estimated for Baker and Lehman Creeks. The low vertical hydraulic conductivity in the streambed along the lower reaches of Snake Creek results from chemical precipitation of calcite caused by off-gassing of carbon dioxide derived from springs at the end of the karst-limestone zone.
\nThe younger alluvial deposits thicken rapidly across faults that form the upper boundary of the lower-piedmont zone. The absence of springs or groundwater flow to the creeks upstream of these faults indicates they are not a complete barrier to groundwater flow. The water table was shallow in the valley-lowland zone in the Baker and Lehman Creek drainage basins, whereas the water table was more than 50 feet below land surface in the Snake Creek drainage basin. In contrast to thick basin fill in the valley-lowland zone in the Baker and Lehman Creek drainage basins, fractured and karst limestone underlie basin fill at relatively shallow depths in Snake Creek drainage basin. The underlying limestone acts as a drain for groundwater in the basin fill beneath Snake Creek.
\nA groundwater divide in southern Spring Valley south of Baking Powder Flat separates groundwater flow to the flat from southeastward flow into northern Hamlin Valley. Groundwater flow from southern Spring Valley south of the groundwater divide into northern Hamlin Valley was estimated to range from 6,000 to 11,000 acre-feet per year. This groundwater does not flow to Big Springs in southern Snake Valley; rather, the source of water to Big Springs is groundwater recharge in the Big Spring Wash drainage basin and in nearby smaller drainage basins at the south end of the Snake Range.
\nGroundwater flow from southern Spring Valley continues through the western side of Hamlin Valley before being directed northeast toward the south end of Snake Valley. This flow is constrained by southward-flowing groundwater from Big Spring Wash and northward-flowing groundwater beneath central Hamlin Valley. The redirection to the northeast corresponds to a narrowing of the width of flow in southern Snake Valley caused by a constriction formed by a steeply dipping middle Paleozoic siliciclastic confining unit exposed in the flanks of the mountains and hills on the east side of southern Snake Valley and shallowly buried beneath basin fill in the valley. The narrowing of groundwater flow could be responsible for the large area where groundwater flows to springs or is lost to evapotranspiration between Big Springs in Nevada and Pruess Lake in Utah.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/pp1819","collaboration":"Prepared in cooperation with the National Park Service, Bureau of Land Management, U.S. Fish and Wildlife Service, and U.S. Forest Service","usgsCitation":"Prudic, D.E, Sweetkind, D.S., Jackson, T.R., Dotson, K.E., Plume, R.W., Hatch, C.E., and Halford, K.J. 2015, Evaluating connection of aquifers to springs and streams, Great Basin National Park and vicinity, Nevada: U.S. Geological Survey Professional Paper 1819, 188 p., https://dx.doi.org/10.3133/pp1819.","productDescription":"Report: xxii, 187 p.; Appendixes 1-16","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-034324","costCenters":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"links":[{"id":312322,"rank":16,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix14.zip","text":"Appendix 14","size":"4.3 MB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 14"},{"id":312312,"rank":6,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix4.zip","text":"Appendix 4","size":"227 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 4"},{"id":312323,"rank":17,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix16.zip","text":"Appendix 16","size":"139 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 16"},{"id":312309,"rank":3,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix1.zip","text":"Appendix 1","size":"25 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 1"},{"id":312307,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1819/coverthb.jpg"},{"id":312308,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1819/pp1819.pdf","text":"Report","size":"16 MB","description":"PP 1819 PDF"},{"id":312310,"rank":4,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix2.zip","text":"Appendix 2","size":"36 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 2"},{"id":312311,"rank":5,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix3.zip","text":"Appendix 3","size":"69 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 3"},{"id":312315,"rank":9,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix7.zip","text":"Appendix 7","size":"31 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 7"},{"id":312316,"rank":10,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix8.zip","text":"Appendix 8","size":"155 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 8"},{"id":312320,"rank":14,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix12.zip","text":"Appendix 12","size":"31 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 12"},{"id":312317,"rank":11,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix9.zip","text":"Appendix 9","size":"14 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 9"},{"id":312318,"rank":12,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix10.zip","text":"Appendix 10","size":"24 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 10"},{"id":312319,"rank":13,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix11.zip","text":"Appendix 11","size":"33 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 11"},{"id":312321,"rank":15,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix13.zip","text":"Appendix 13","size":"481 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 13"},{"id":312313,"rank":7,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix5.zip","text":"Appendix 5","size":"216 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 5"},{"id":312314,"rank":8,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/pp/1819/pp1819_appendix6.zip","text":"Appendix 6","size":"29 KB","linkFileType":{"id":6,"text":"zip"},"description":"PP 1819 Appendix 6"}],"country":"United States","state":"Nevada","county":"Lincoln County, White Pine County","otherGeospatial":"Baker Creek, Big Springs, Great Basin National Park, Hamlin Valley, Lehman Creek, Rowland Spring, Snake Range, Spring Valley, Snake Creek","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-114.0491,38.6775],[-114.0491,38.6027],[-114.0491,38.5905],[-114.0491,38.5728],[-114.0493,38.2224],[-114.0493,38.173],[-114.0493,38.1503],[-114.0494,38.0329],[-114.0494,38.0308],[-114.0524,37.9059],[-114.0524,37.9039],[-114.0531,37.7903],[-114.0531,37.7887],[-114.0535,37.7259],[-114.0536,37.7109],[-114.0539,37.666],[-114.0541,37.6447],[-114.0541,37.6431],[-114.0539,37.6075],[-114.0537,37.5855],[-114.0535,37.5701],[-114.0533,37.5332],[-114.0531,37.4897],[-114.053,37.4679],[-114.051,37],[-114.0509,36.998],[-114.0497,36.8428],[-114.1087,36.8427],[-114.111,36.8427],[-114.218,36.843],[-114.4286,36.8426],[-114.4954,36.8429],[-114.5414,36.8432],[-114.5609,36.8432],[-114.6489,36.8435],[-114.6651,36.843],[-114.7571,36.8437],[-114.7573,36.8533],[-114.7844,36.853],[-114.8534,36.8531],[-114.8672,36.853],[-114.8712,36.8531],[-114.8891,36.853],[-114.9253,36.8533],[-114.9432,36.8533],[-114.9541,36.8535],[-114.9759,36.8535],[-114.9794,36.8536],[-115.2825,36.8541],[-115.2992,36.8539],[-115.3033,36.854],[-115.737,36.8539],[-115.7372,36.843],[-115.8942,36.8425],[-115.8982,37.1926],[-115.8975,37.2796],[-115.8969,37.5498],[-115.8938,37.723],[-115.8931,38.0507],[-115.8404,38.0504],[-115.6581,38.051],[-115.6394,38.0512],[-115.4587,38.0506],[-115.4003,38.051],[-115.3453,38.0514],[-115.326,38.0515],[-115.1436,38.0508],[-115.1185,38.0508],[-115.0004,38.0507],[-114.9994,38.3894],[-114.9997,38.4315],[-114.9996,38.592],[-114.999,38.6777],[-115.0291,38.6937],[-115.0604,38.7107],[-115.0777,38.721],[-115.0969,38.7309],[-115.242,38.8093],[-115.363,38.874],[-115.3694,38.8769],[-115.4433,38.9162],[-115.4725,38.9325],[-115.5191,38.9578],[-115.9082,39.1615],[-115.9059,39.2947],[-115.9059,39.3219],[-115.9061,39.3369],[-115.9063,39.4638],[-115.8939,39.4605],[-115.8741,39.4652],[-115.8693,39.4679],[-115.8649,39.4755],[-115.8684,39.4806],[-115.8695,39.4851],[-115.8658,39.4901],[-115.8598,39.4922],[-115.8525,39.499],[-115.8518,39.5017],[-115.8524,39.5035],[-115.8523,39.5053],[-115.8444,39.5143],[-115.8414,39.5151],[-115.836,39.5182],[-115.8334,39.525],[-115.8279,39.5322],[-115.8271,39.5381],[-115.8306,39.5417],[-115.8341,39.5481],[-115.8363,39.5536],[-115.8374,39.5577],[-115.8361,39.564],[-115.8318,39.5685],[-115.83,39.5707],[-115.8263,39.5748],[-115.814,39.5891],[-115.8127,39.5945],[-115.8138,39.6],[-115.8195,39.6082],[-115.8164,39.6127],[-115.8181,39.6195],[-115.8227,39.6264],[-115.826,39.6378],[-115.8259,39.6446],[-115.8282,39.6478],[-115.8245,39.6523],[-115.8226,39.6563],[-115.823,39.6663],[-115.8234,39.6727],[-115.8233,39.6786],[-115.8237,39.6858],[-115.8248,39.6913],[-115.8312,39.6963],[-115.8314,39.7168],[-115.8305,39.7276],[-115.8315,39.7367],[-115.8266,39.7398],[-115.8236,39.7425],[-115.8223,39.7461],[-115.8193,39.747],[-115.815,39.7492],[-115.8119,39.7541],[-115.8106,39.7595],[-115.8129,39.7641],[-115.8128,39.7677],[-115.8127,39.7727],[-115.8126,39.7782],[-115.8118,39.7845],[-115.8093,39.7904],[-115.8085,39.7976],[-115.8102,39.8008],[-115.8137,39.8072],[-115.8152,39.8176],[-115.8121,39.8226],[-115.8085,39.8257],[-115.8054,39.8288],[-115.8023,39.8329],[-115.7986,39.8369],[-115.7967,39.8432],[-115.7984,39.846],[-115.7971,39.8496],[-115.7958,39.8527],[-115.7951,39.8595],[-115.8039,39.8678],[-115.8013,39.8746],[-115.8012,39.8787],[-115.8052,39.8896],[-115.8068,39.896],[-115.8061,39.9014],[-115.8036,39.905],[-115.8023,39.91],[-115.8081,39.9196],[-115.8139,39.9255],[-115.8162,39.9306],[-115.8173,39.9356],[-115.816,39.9387],[-115.8146,39.9464],[-115.8145,39.9528],[-115.8156,39.9573],[-115.8173,39.96],[-115.8241,39.9769],[-115.8276,39.981],[-115.8323,39.987],[-115.8334,39.9897],[-115.8344,39.9979],[-115.8344,40.0006],[-115.8337,40.0043],[-115.8341,40.0115],[-115.8302,40.0251],[-115.8283,40.0282],[-115.8288,40.0323],[-115.8317,40.0355],[-115.8346,40.0437],[-115.8315,40.0478],[-115.8278,40.0522],[-115.8276,40.0581],[-115.8317,40.0636],[-115.837,40.0682],[-115.8375,40.071],[-115.8344,40.0755],[-115.8349,40.0805],[-115.8384,40.085],[-115.8376,40.0946],[-115.8346,40.0959],[-115.8321,40.0995],[-115.8289,40.1076],[-115.8294,40.1121],[-115.8305,40.1167],[-115.8374,40.1286],[-115.6972,40.1289],[-115.6046,40.1284],[-115.5295,40.1264],[-115.4561,40.1266],[-115.4441,40.1264],[-115.3917,40.1264],[-115.2426,40.1257],[-115.0393,40.1241],[-114.8108,40.1222],[-114.6929,40.1214],[-114.6526,40.121],[-114.634,40.121],[-114.5312,40.1195],[-114.2256,40.1178],[-114.0484,40.1186],[-114.0476,39.982],[-114.0474,39.9053],[-114.0469,39.7765],[-114.0468,39.747],[-114.0463,39.6464],[-114.0468,39.543],[-114.0472,39.4696],[-114.0472,39.4551],[-114.0476,39.4068],[-114.0478,39.3816],[-114.048,39.3666],[-114.0481,39.341],[-114.0483,39.2936],[-114.0484,39.2805],[-114.0488,39.2179],[-114.0488,39.2168],[-114.0502,39.1195],[-114.0506,39.0873],[-114.0515,39.0209],[-114.0517,39.0059],[-114.052,38.9994],[-114.052,38.9982],[-114.0512,38.9554],[-114.0507,38.9259],[-114.0497,38.8693],[-114.0495,38.8557],[-114.0491,38.8371],[-114.0491,38.8358],[-114.0492,38.7927],[-114.0492,38.765],[-114.0492,38.7587],[-114.0491,38.7138],[-114.0491,38.6775]]]},\"properties\":{\"name\":\"Lincoln\",\"state\":\"NV\"}}]}","contact":"Director, Nevada Water Science Center
U.S. Geological Survey
2730 N. Deer Run Rd.
Carson City, NV 89701
http://nevada.usgs.gov/water/
The U.S. Geological Survey, in cooperation with the Missouri Department of Natural Resources, designed and operates a series of monitoring stations on streams and springs throughout Missouri known as the Ambient Water-Quality Monitoring Network. During the 2014 water year (October 1, 2013, through September 30, 2014), data were collected at 74 stations—72 Ambient Water-Quality Monitoring Network stations and 2 U.S. Geological Survey National Stream Quality Assessment Network stations. Dissolved oxygen, specific conductance, water temperature, suspended solids, suspended sediment, Escherichia coli bacteria, fecal coliform bacteria, dissolved nitrate plus nitrite as nitrogen, total phosphorus, dissolved and total recoverable lead and zinc, and select pesticide compound summaries are presented for 71 of these stations. The stations primarily have been classified into groups corresponding to the physiography of the State, primary land use, or unique station types. In addition, a summary of hydrologic conditions in the State including peak discharges, monthly mean discharges, and 7-day low flow is presented.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ds971","collaboration":"Prepared in cooperation with the Missouri Department of Natural Resources","usgsCitation":"Barr, M.N., 2015, Quality of surface water in Missouri, water year 2014: U.S. Geological Survey Data Series 971, 22 p., https://dx.doi.org/10.3133/ds971.","productDescription":"vi, 22 p.","numberOfPages":"32","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-068828","costCenters":[{"id":396,"text":"Missouri Water Science Center","active":true,"usgs":true}],"links":[{"id":312548,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/ds/0971/coverthb.jpg"},{"id":312550,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/ds/0971/ds971.pdf","text":"Report","size":"2.05 MB","linkFileType":{"id":1,"text":"pdf"},"description":"DS 971"}],"country":"United States","state":"Missouri","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -95.78979492187499,\n 40.60561205826018\n ],\n [\n -91.77978515625,\n 40.63896734381723\n ],\n [\n -91.56005859375,\n 40.48873742102282\n ],\n [\n -91.4501953125,\n 40.421860362045194\n ],\n [\n -91.51611328125,\n 40.17887331434696\n ],\n [\n -91.461181640625,\n 39.985538414809746\n ],\n [\n -91.417236328125,\n 39.842286020743394\n ],\n [\n -91.285400390625,\n 39.69873414348139\n ],\n [\n -91.01074218749999,\n 39.52099229357195\n ],\n [\n -90.692138671875,\n 39.198205348894795\n ],\n [\n -90.615234375,\n 39.01064750994083\n ],\n [\n -90.54931640625,\n 38.91668153637508\n ],\n [\n -90.439453125,\n 38.95940879245423\n ],\n [\n -90.1318359375,\n 38.89958342598271\n ],\n [\n -90.120849609375,\n 38.8225909761771\n ],\n [\n -90.15380859375,\n 38.659777730712534\n ],\n [\n -90.252685546875,\n 38.47939467327645\n ],\n [\n -90.340576171875,\n 38.315801006824984\n ],\n [\n -90.24169921875,\n 38.1777509666256\n ],\n [\n -90.010986328125,\n 38.048091067457236\n ],\n [\n -89.89013671875,\n 38.004819966413194\n ],\n [\n -89.659423828125,\n 37.84015683604136\n ],\n [\n -89.527587890625,\n 37.71859032558816\n ],\n [\n -89.45068359374999,\n 37.56199695314352\n ],\n [\n -89.45068359374999,\n 37.43125050179356\n ],\n [\n -89.5166015625,\n 37.29153547292737\n ],\n [\n -89.36279296875,\n 37.13404537126446\n ],\n [\n -89.307861328125,\n 37.00255267215955\n ],\n [\n -89.27490234375,\n 37.10776507118514\n ],\n [\n -89.154052734375,\n 37.020098201368114\n ],\n [\n -89.09912109375,\n 36.949891786813296\n ],\n [\n -89.1650390625,\n 36.81808022778526\n ],\n [\n -89.14306640625,\n 36.73888412439431\n ],\n [\n -89.154052734375,\n 36.67723060234619\n ],\n [\n -89.20898437499999,\n 36.58906837139909\n ],\n [\n -89.307861328125,\n 36.615527631349224\n ],\n [\n -89.384765625,\n 36.55377524336086\n ],\n [\n -89.483642578125,\n 36.46547188679816\n ],\n [\n -89.549560546875,\n 36.55377524336086\n ],\n [\n -89.549560546875,\n 36.474306755095206\n ],\n [\n -89.56054687499999,\n 36.31512514748051\n ],\n [\n -89.53857421875,\n 36.26199220445664\n ],\n [\n -89.67041015625,\n 36.2265501474709\n ],\n [\n -89.571533203125,\n 36.182224980422525\n ],\n [\n -89.69238281249999,\n 36.08462129606931\n ],\n [\n -89.703369140625,\n 36.02244668175846\n ],\n [\n -90.3955078125,\n 36.00467348670187\n ],\n [\n -90.32958984375,\n 36.11125252076159\n ],\n [\n -90.186767578125,\n 36.20882309283712\n ],\n [\n -90.087890625,\n 36.30627216957992\n ],\n [\n -90.06591796875,\n 36.37706783983682\n ],\n [\n -90.17578124999999,\n 36.41244153535644\n ],\n [\n -90.186767578125,\n 36.500805317604794\n ],\n [\n -94.625244140625,\n 36.50963615733049\n ],\n [\n -94.625244140625,\n 38.95940879245423\n ],\n [\n -94.68017578125,\n 39.155622393423215\n ],\n [\n -94.866943359375,\n 39.2407625100131\n ],\n [\n -94.888916015625,\n 39.308800296002914\n ],\n [\n -94.921875,\n 39.37677199661635\n ],\n [\n -95.0537109375,\n 39.49556336059472\n ],\n [\n -95.07568359375,\n 39.58029027440865\n ],\n [\n -95.020751953125,\n 39.707186656826565\n ],\n [\n -94.921875,\n 39.757879992021756\n ],\n [\n -94.89990234375,\n 39.825413103424786\n ],\n [\n -94.9658203125,\n 39.90130858574735\n ],\n [\n -95.042724609375,\n 39.884450178234395\n ],\n [\n -95.1416015625,\n 39.884450178234395\n ],\n [\n -95.29541015625,\n 39.9434364619742\n ],\n [\n -95.394287109375,\n 40.01920130768676\n ],\n [\n -95.43823242187499,\n 40.111688665595956\n ],\n [\n -95.482177734375,\n 40.195659093364654\n ],\n [\n -95.526123046875,\n 40.25437660372649\n ],\n [\n -95.657958984375,\n 40.29628651711716\n ],\n [\n -95.64697265625,\n 40.39676430557203\n ],\n [\n -95.723876953125,\n 40.538851525354644\n ],\n [\n -95.78979492187499,\n 40.60561205826018\n ]\n ]\n ]\n }\n }\n ]\n}","contact":"Director, Missouri Water Science Center
U.S. Geological Survey
1400 Independence Road
Rolla, MO 65401
http://mo.water.usgs.gov/
This article presents the scientific rationale for an ambitious ICDP drilling project to continuously sample Late Cretaceous to modern sediment in four different sedimentary basins that transect the equatorial Amazon of Brazil, from the Andean foreland to the Atlantic Ocean. The goals of this project are to document the evolution of plant biodiversity in the Amazon forests and to relate biotic diversification to changes in the physical environment, including climate, tectonism, and the surface landscape. These goals require long sedimentary records from each of the major sedimentary basins across the heart of the Brazilian Amazon, which can only be obtained by drilling because of the scarcity of Cenozoic outcrops. The proposed drilling will provide the first long, nearly continuous regional records of the Cenozoic history of the forests, their plant diversity, and the associated changes in climate and environment. It also will address fundamental questions about landscape evolution, including the history of Andean uplift and erosion as recorded in Andean foreland basins and the development of west-to-east hydrologic continuity between the Andes, the Amazon lowlands, and the equatorial Atlantic. Because many modern rivers of the Amazon basin flow along the major axes of the old sedimentary basins, we plan to locate drill sites on the margin of large rivers and to access the targeted drill sites by navigation along these rivers.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Scientific Drilling","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"Berlin","doi":"10.5194/sd-20-41-2015","usgsCitation":"Baker, P., Fritz, S., Silva, C., Rigsby, C., Absy, M., Almeida, R., Caputo, M., Chiessi, C., Cruz, F., Dick, C., Feakins, S., Figueiredo, J., Freeman, K., Hoorn, C., Jaramillo, C., Kern, A., Latrubesse, E., Ledru, M., Marzoli, A., Myrbo, A., Noren, A., Piller, W., Ramos, M., Ribas, C., Trinadade, R., West, A., Wahnfried, I., and Willard, D.A., 2015, Trans-Amazon Drilling Project (TADP): origins and evolution of the forests, climate, and hydrology of the South American tropics: Scientific Drilling, v. 20, p. 41-49, https://doi.org/10.5194/sd-20-41-2015.","productDescription":"9 p.","startPage":"41","endPage":"49","numberOfPages":"9","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-069099","costCenters":[{"id":24693,"text":"Climate Research and Development","active":true,"usgs":true}],"links":[{"id":471561,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/sd-20-41-2015","text":"Publisher Index Page"},{"id":318575,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Brazil","otherGeospatial":"Amazon region","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-57.62513,-30.21629],[-56.2909,-28.85276],[-55.16229,-27.88192],[-54.49073,-27.47476],[-53.64874,-26.92347],[-53.62835,-26.12487],[-54.13005,-25.54764],[-54.62529,-25.73926],[-54.42895,-25.16218],[-54.29348,-24.5708],[-54.29296,-24.02101],[-54.65283,-23.83958],[-55.0279,-24.00127],[-55.40075,-23.95694],[-55.51764,-23.572],[-55.61068,-22.65562],[-55.79796,-22.35693],[-56.47332,-22.0863],[-56.88151,-22.28215],[-57.93716,-22.09018],[-57.87067,-20.73269],[-58.16639,-20.1767],[-57.8538,-19.97],[-57.95,-19.4],[-57.67601,-18.96184],[-57.49837,-18.17419],[-57.73456,-17.55247],[-58.2808,-17.27171],[-58.38806,-16.87711],[-58.24122,-16.29957],[-60.15839,-16.25828],[-60.54297,-15.09391],[-60.25115,-15.07722],[-60.26433,-14.64598],[-60.4592,-14.35401],[-60.5033,-13.77595],[-61.08412,-13.47938],[-61.7132,-13.4892],[-62.12708,-13.19878],[-62.80306,-13.00065],[-63.1965,-12.62703],[-64.31635,-12.46198],[-65.40228,-11.56627],[-65.3219,-10.89587],[-65.44484,-10.51145],[-65.33844,-9.76199],[-66.64691,-9.93133],[-67.1738,-10.30681],[-68.04819,-10.71206],[-68.27125,-11.01452],[-68.78616,-11.03638],[-69.52968,-10.95173],[-70.09375,-11.12397],[-70.54869,-11.00915],[-70.48189,-9.49012],[-71.30241,-10.07944],[-72.18489,-10.0536],[-72.56303,-9.52019],[-73.22671,-9.46221],[-73.01538,-9.03283],[-73.57106,-8.42445],[-73.98724,-7.52383],[-73.7234,-7.341],[-73.72449,-6.9186],[-73.12003,-6.62993],[-73.21971,-6.08919],[-72.96451,-5.74125],[-72.89193,-5.27456],[-71.74841,-4.59398],[-70.92884,-4.40159],[-70.79477,-4.25126],[-69.89364,-4.29819],[-69.4441,-1.55629],[-69.42049,-1.12262],[-69.57707,-0.54999],[-70.02066,-0.18516],[-70.01557,0.54141],[-69.4524,0.70616],[-69.25243,0.60265],[-69.21864,0.98568],[-69.8046,1.08908],[-69.81697,1.71481],[-67.86857,1.69246],[-67.53781,2.03716],[-67.26,1.72],[-67.06505,1.13011],[-66.87633,1.25336],[-66.32577,0.72445],[-65.54827,0.78925],[-65.35471,1.09528],[-64.61101,1.32873],[-64.19931,1.49285],[-64.08309,1.91637],[-63.36879,2.2009],[-63.42287,2.41107],[-64.27,2.49701],[-64.40883,3.12679],[-64.36849,3.79721],[-64.81606,4.05645],[-64.62866,4.14848],[-63.88834,4.02053],[-63.0932,3.77057],[-62.80453,4.00697],[-62.08543,4.16212],[-60.96689,4.53647],[-60.60118,4.9181],[-60.73357,5.20028],[-60.21368,5.24449],[-59.98096,5.01406],[-60.111,4.57497],[-59.76741,4.4235],[-59.53804,3.9588],[-59.81541,3.6065],[-59.97452,2.75523],[-59.71855,2.24963],[-59.64604,1.78689],[-59.03086,1.3177],[-58.54001,1.26809],[-58.42948,1.46394],[-58.11345,1.5072],[-57.66097,1.68258],[-57.33582,1.94854],[-56.7827,1.86371],[-56.53939,1.89952],[-55.9957,1.81767],[-55.9056,2.022],[-56.07334,2.22079],[-55.97332,2.51036],[-55.56976,2.42151],[-55.09759,2.52375],[-54.52475,2.31185],[-54.08806,2.10556],[-53.77852,2.3767],[-53.55484,2.3349],[-53.41847,2.05339],[-52.93966,2.12486],[-52.55642,2.50471],[-52.24934,3.24109],[-51.6578,4.15623],[-51.31715,4.20349],[-51.06977,3.6504],[-50.50888,1.90156],[-49.97408,1.73648],[-49.9471,1.04619],[-50.69925,0.22298],[-50.38821,-0.07844],[-48.62057,-0.23549],[-48.5845,-1.23781],[-47.82496,-0.58162],[-46.56658,-0.94103],[-44.9057,-1.55174],[-44.41762,-2.13775],[-44.58159,-2.69131],[-43.41879,-2.38311],[-41.47266,-2.91202],[-39.97867,-2.87305],[-38.50038,-3.70065],[-37.22325,-4.82095],[-36.45294,-5.1094],[-35.5978,-5.1495],[-35.23539,-5.46494],[-34.89603,-6.73819],[-34.72999,-7.34322],[-35.12821,-8.9964],[-35.63697,-9.64928],[-37.04652,-11.04072],[-37.68361,-12.17119],[-38.42388,-13.03812],[-38.67389,-13.05765],[-38.95328,-13.79337],[-38.8823,-15.66705],[-39.16109,-17.20841],[-39.26734,-17.86775],[-39.58352,-18.2623],[-39.76082,-19.59911],[-40.77474,-20.90451],[-40.94476,-21.93732],[-41.75416,-22.37068],[-41.98828,-22.97007],[-43.0747,-22.96769],[-44.64781,-23.35196],[-45.35214,-23.79684],[-46.47209,-24.08897],[-47.64897,-24.8852],[-48.49546,-25.87702],[-48.641,-26.6237],[-48.47474,-27.17591],[-48.66152,-28.18613],[-48.88846,-28.67412],[-49.58733,-29.22447],[-50.69687,-30.98447],[-51.57623,-31.7777],[-52.25608,-32.24537],[-52.7121,-33.19658],[-53.37366,-33.76838],[-53.65054,-33.202],[-53.20959,-32.72767],[-53.78795,-32.04724],[-54.57245,-31.49451],[-55.60151,-30.85388],[-55.97324,-30.88308],[-56.97603,-30.10969],[-57.62513,-30.21629]]]},\"properties\":{\"name\":\"Brazil\"}}]}","volume":"20","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2015-12-17","publicationStatus":"PW","scienceBaseUri":"56dabff7e4b015c306f84d27","contributors":{"authors":[{"text":"Baker, P.A.","contributorId":55148,"corporation":false,"usgs":true,"family":"Baker","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":621798,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fritz, S.C.","contributorId":77892,"corporation":false,"usgs":true,"family":"Fritz","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":621799,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Silva, C.G.","contributorId":167316,"corporation":false,"usgs":false,"family":"Silva","given":"C.G.","affiliations":[{"id":24679,"text":"Universidade Federal Fluminense, Niteroi, Brazil","active":true,"usgs":false}],"preferred":false,"id":621800,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rigsby, C.A.","contributorId":58800,"corporation":false,"usgs":true,"family":"Rigsby","given":"C.A.","affiliations":[],"preferred":false,"id":621801,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Absy, M.L.","contributorId":167317,"corporation":false,"usgs":false,"family":"Absy","given":"M.L.","email":"","affiliations":[{"id":13527,"text":"Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil","active":true,"usgs":false}],"preferred":false,"id":621802,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Almeida, R.P.","contributorId":167318,"corporation":false,"usgs":false,"family":"Almeida","given":"R.P.","email":"","affiliations":[{"id":24680,"text":"Universidade de São Paulo, São Paulo, Brazil","active":true,"usgs":false}],"preferred":false,"id":621803,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Caputo, Maria C.","contributorId":48756,"corporation":false,"usgs":false,"family":"Caputo","given":"Maria C.","affiliations":[],"preferred":false,"id":621804,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Chiessi, C.M.","contributorId":167319,"corporation":false,"usgs":false,"family":"Chiessi","given":"C.M.","affiliations":[{"id":24680,"text":"Universidade de São Paulo, São Paulo, Brazil","active":true,"usgs":false}],"preferred":false,"id":621805,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Cruz, F.W.","contributorId":167320,"corporation":false,"usgs":false,"family":"Cruz","given":"F.W.","email":"","affiliations":[{"id":24680,"text":"Universidade de São Paulo, São Paulo, Brazil","active":true,"usgs":false}],"preferred":false,"id":621806,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Dick, C.W.","contributorId":151044,"corporation":false,"usgs":false,"family":"Dick","given":"C.W.","email":"","affiliations":[],"preferred":false,"id":621807,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Feakins, S.J.","contributorId":167321,"corporation":false,"usgs":false,"family":"Feakins","given":"S.J.","affiliations":[{"id":24681,"text":"University of Southern California, Los Angeles, CA, USA","active":true,"usgs":false}],"preferred":false,"id":621808,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Figueiredo, J.","contributorId":167322,"corporation":false,"usgs":false,"family":"Figueiredo","given":"J.","email":"","affiliations":[{"id":24682,"text":"OGX Oil and Gas, Brazil","active":true,"usgs":false}],"preferred":false,"id":621809,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Freeman, K.H.","contributorId":167323,"corporation":false,"usgs":false,"family":"Freeman","given":"K.H.","email":"","affiliations":[{"id":24683,"text":"The Pennsylvania State University, University Park, PA, USA","active":true,"usgs":false}],"preferred":false,"id":621810,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Hoorn, C.","contributorId":167324,"corporation":false,"usgs":false,"family":"Hoorn","given":"C.","email":"","affiliations":[{"id":24684,"text":"University of Amsterdam, Amsterdam, The Netherlands","active":true,"usgs":false}],"preferred":false,"id":621811,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Jaramillo, C.A.","contributorId":9891,"corporation":false,"usgs":true,"family":"Jaramillo","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":621812,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Kern, A.","contributorId":167325,"corporation":false,"usgs":false,"family":"Kern","given":"A.","email":"","affiliations":[{"id":24680,"text":"Universidade de São Paulo, São Paulo, Brazil","active":true,"usgs":false}],"preferred":false,"id":621813,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Latrubesse, E.M.","contributorId":167326,"corporation":false,"usgs":false,"family":"Latrubesse","given":"E.M.","email":"","affiliations":[{"id":24685,"text":"University of Texas, Austin, TX, USA","active":true,"usgs":false}],"preferred":false,"id":621814,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Ledru, M.P.","contributorId":167327,"corporation":false,"usgs":false,"family":"Ledru","given":"M.P.","affiliations":[{"id":24686,"text":"Université de Montpellier, Montpellier, France","active":true,"usgs":false}],"preferred":false,"id":621815,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"Marzoli, A.","contributorId":167328,"corporation":false,"usgs":false,"family":"Marzoli","given":"A.","email":"","affiliations":[{"id":24687,"text":"Universitá Degli Studi di Padova, Padova, Italy","active":true,"usgs":false}],"preferred":false,"id":621816,"contributorType":{"id":1,"text":"Authors"},"rank":19},{"text":"Myrbo, A.","contributorId":167329,"corporation":false,"usgs":false,"family":"Myrbo","given":"A.","affiliations":[{"id":24688,"text":"University of Minnesota - Twin Cities, Minneapolis, MN, USA","active":true,"usgs":false}],"preferred":false,"id":621817,"contributorType":{"id":1,"text":"Authors"},"rank":20},{"text":"Noren, A.","contributorId":167330,"corporation":false,"usgs":false,"family":"Noren","given":"A.","email":"","affiliations":[{"id":24688,"text":"University of Minnesota - Twin Cities, Minneapolis, MN, USA","active":true,"usgs":false}],"preferred":false,"id":621818,"contributorType":{"id":1,"text":"Authors"},"rank":21},{"text":"Piller, W.E.","contributorId":167331,"corporation":false,"usgs":false,"family":"Piller","given":"W.E.","affiliations":[{"id":24689,"text":"Universität Graz, Graz, Austria","active":true,"usgs":false}],"preferred":false,"id":621819,"contributorType":{"id":1,"text":"Authors"},"rank":22},{"text":"Ramos, M.I.F.","contributorId":167332,"corporation":false,"usgs":false,"family":"Ramos","given":"M.I.F.","email":"","affiliations":[{"id":24690,"text":"Museu Paraense Emílio Goeldi, Pára, Brazil","active":true,"usgs":false}],"preferred":false,"id":621820,"contributorType":{"id":1,"text":"Authors"},"rank":23},{"text":"Ribas, C.C.","contributorId":167333,"corporation":false,"usgs":false,"family":"Ribas","given":"C.C.","email":"","affiliations":[{"id":13527,"text":"Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil","active":true,"usgs":false}],"preferred":false,"id":621821,"contributorType":{"id":1,"text":"Authors"},"rank":24},{"text":"Trinadade, R.","contributorId":167334,"corporation":false,"usgs":false,"family":"Trinadade","given":"R.","email":"","affiliations":[{"id":24691,"text":"Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil","active":true,"usgs":false}],"preferred":false,"id":621822,"contributorType":{"id":1,"text":"Authors"},"rank":25},{"text":"West, A.J.","contributorId":6224,"corporation":false,"usgs":true,"family":"West","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":621823,"contributorType":{"id":1,"text":"Authors"},"rank":26},{"text":"Wahnfried, I.","contributorId":167335,"corporation":false,"usgs":false,"family":"Wahnfried","given":"I.","email":"","affiliations":[{"id":24692,"text":"Universidade Federal do Amazonas, Manaus, Brazil","active":true,"usgs":false}],"preferred":false,"id":621824,"contributorType":{"id":1,"text":"Authors"},"rank":27},{"text":"Willard, Debra A. 0000-0003-4878-0942 dwillard@usgs.gov","orcid":"https://orcid.org/0000-0003-4878-0942","contributorId":2076,"corporation":false,"usgs":true,"family":"Willard","given":"Debra","email":"dwillard@usgs.gov","middleInitial":"A.","affiliations":[{"id":411,"text":"National Climate Change and Wildlife Science Center","active":true,"usgs":true},{"id":24693,"text":"Climate Research and Development","active":true,"usgs":true}],"preferred":true,"id":621797,"contributorType":{"id":1,"text":"Authors"},"rank":28}]}} ,{"id":70159058,"text":"ds967 - 2015 - Hydrologic data for the Walker River Basin, Nevada and California, water years 2010–14","interactions":[],"lastModifiedDate":"2015-12-10T10:32:26","indexId":"ds967","displayToPublicDate":"2015-12-10T08:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"967","title":"Hydrologic data for the Walker River Basin, Nevada and California, water years 2010–14","docAbstract":"Walker Lake is a threatened and federally protected desert terminal lake in western Nevada. To help protect the desert terminal lake and the surrounding watershed, the Bureau of Reclamation and U.S. Geological Survey have been studying the hydrology of the Walker River Basin in Nevada and California since 2004. Hydrologic data collected for this study during water years 2010 through 2014 included groundwater levels, surface-water discharge, water chemistry, and meteorological data. Groundwater levels were measured in wells, and surface-water discharge was measured in streams, canals, and ditches. Water samples for chemical analyses were collected from wells, streams, springs, and Walker Lake. Chemical analyses included determining physical properties; the concentrations of major ions, nutrients, trace metals, dissolved gases, and radionuclides; and ratios of the stable isotopes of hydrogen and oxygen. Walker Lake water properties and meteorological parameters were monitored from a floating platform on the lake. Data collection methods followed established U.S. Geological Survey guidelines, and all data are stored in the National Water Information System database. All of the data are presented in this report and accessible on the internet, except multiple-depth Walker Lake water-chemistry data, which are available only in this report.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ds967","collaboration":"Prepared in cooperation with the Bureau of Reclamation","usgsCitation":"Pavelko, Michael T., and Orozco, Erin L., 2015, Hydrologic data for the Walker River Basin, Nevada and California, water years 2010–14: U.S. Geological Survey Data Series 967, 17 p., plus appendixes, https://dx.doi.org/10.3133/ds967.","productDescription":"Report: iv, 17 p.; 6 Appendixes","numberOfPages":"26","onlineOnly":"Y","additionalOnlineFiles":"Y","temporalStart":"2009-10-01","temporalEnd":"2014-09-30","ipdsId":"IP-065428","costCenters":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"links":[{"id":311927,"rank":8,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/ds/0967/ds967_appendix06.xlsx","text":"Appendix 6","size":"3.3 MB","linkFileType":{"id":3,"text":"xlsx"},"description":"DS 967 Appendix 6","linkHelpText":"Lake water-chemistry and meteorological data from sites located on Walker Lake, water years 2011–14."},{"id":311920,"rank":2,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/ds/0967/coverthb.jpg"},{"id":311922,"rank":3,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/ds/0967/ds967_appendix01.xlsx","text":"Appendix 1","size":"156 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"DS 967 Appendix 1","linkHelpText":"Water-level measurements for the Walker River Basin study, water years 2010–14."},{"id":311919,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/ds/0967/ds967.pdf","text":"Report","size":"2.5 MB","description":"DS 967 PDF"},{"id":311923,"rank":4,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/ds/0967/ds967_appendix02.xlsx","text":"Appendix 2","size":"20 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"DS 967 Appendix 2","linkHelpText":"Surface-water discharge measurements for the Walker River Basin study, water years 2011–13."},{"id":311924,"rank":5,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/ds/0967/ds967_appendix03.xlsx","text":"Appendix 3","size":"56 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"DS 967 Appendix 3","linkHelpText":"Groundwater-chemistry data for the Walker River Basin study, water years 2010–12."},{"id":311926,"rank":7,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/ds/0967/ds967_appendix05.xlsx","text":"Appendix 5","size":"19 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"DS 967 Appendix 5","linkHelpText":"Spring water-chemistry data for the Walker River Basin study, water years 2010–13."},{"id":311925,"rank":6,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/ds/0967/ds967_appendix04.xlsx","text":"Appendix 4","size":"40 KB","linkFileType":{"id":3,"text":"xlsx"},"description":"DS 967 Appendix 4","linkHelpText":"Stream water-chemistry data for the Walker River Basin study, water years 2011–13."}],"country":"United States","state":"California, Nevada","otherGeospatial":"Walker River Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -119.22912597656249,\n 38.026458711461245\n ],\n [\n -118.98193359375,\n 38.1734326790354\n ],\n [\n -118.8006591796875,\n 38.24249456800328\n ],\n [\n -118.6138916015625,\n 38.29424797320529\n ],\n [\n -118.48205566406251,\n 38.182068998322094\n ],\n [\n -118.55895996093749,\n 38.06539235133249\n ],\n [\n -118.54248046874999,\n 37.97884504049713\n ],\n [\n -118.38317871093749,\n 38.02213147353745\n ],\n [\n -118.26232910156249,\n 38.16479533621134\n ],\n [\n -118.23486328125,\n 38.29424797320529\n ],\n [\n -118.35571289062499,\n 38.638327308061875\n ],\n [\n -118.4381103515625,\n 38.70265930723801\n ],\n [\n -118.5150146484375,\n 38.839707613545144\n ],\n [\n -118.46557617187499,\n 38.950865400919994\n ],\n [\n -118.487548828125,\n 39.02345139405932\n ],\n [\n -118.63037109375,\n 39.027718840211605\n ],\n [\n -118.828125,\n 39.08743603215884\n ],\n [\n -118.9544677734375,\n 39.142842478062505\n ],\n [\n -119.11376953125,\n 39.1854331703021\n ],\n [\n -119.24560546875001,\n 39.1854331703021\n ],\n [\n -119.44335937499999,\n 39.104488809440475\n ],\n [\n -119.54223632812501,\n 38.96795115401593\n ],\n [\n -119.608154296875,\n 38.796908303484294\n ],\n [\n -119.65209960937501,\n 38.732661120482334\n ],\n [\n -119.7344970703125,\n 38.61257832462118\n ],\n [\n -119.6685791015625,\n 38.5008925889646\n ],\n [\n -119.63562011718751,\n 38.40194908237825\n ],\n [\n -119.63012695312499,\n 38.190704293996504\n ],\n [\n -119.60266113281249,\n 38.06971703320484\n ],\n [\n -119.4049072265625,\n 38.0091482264894\n ],\n [\n -119.2950439453125,\n 37.97018468810549\n ],\n [\n -119.22912597656249,\n 38.026458711461245\n ]\n ]\n ]\n }\n }\n ]\n}","contact":"Director, Nevada Water Science Center
U.S. Geological Survey
2730 N. Deer Run Rd.
Carson City, NV 89701
http://nevada.usgs.gov/water/
This report describes an R package called smwrBase, which consists of a collection of functions to import, transform, manipulate, and manage hydrologic data within the R statistical environment. Functions in the package allow users to import surface-water and groundwater data from the U.S. Geological Survey’s National Water Information System database and other sources. Additional functions are provided to transform, manipulate, and manage hydrologic data in ways necessary for analyzing the data.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20151202","usgsCitation":"Lorenz, D.L., 2015, smwrBase—An R package for managing hydrologic data, version 1.1.1: U.S. Geological\nSurvey Open-File Report 2015–1202, 7 p., https://dx.doi.org/10.3133/ofr20151202.","productDescription":"Report: iii, 5 p.; Appendixes: 1-3","numberOfPages":"16","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-052705","costCenters":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"links":[{"id":311723,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2015/1202/ofr20151202.pdf","text":"Report","size":"241 kB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 2015-1202"},{"id":311724,"rank":3,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/ofr/2015/1202/downloads/","text":"Appendix","description":"OFR 2015-1202 Appendix","linkHelpText":"Director, Minnesota Water Science Center
U.S. Geological Survey
2280 Woodale Drive
Mounds View, Minnesota 55112
http://mn.water.usgs.gov/
We used a statistical learning framework to evaluate the ability of three machine-learning methods to predict nitrate concentration in shallow groundwater of the Central Valley, California: boosted regression trees (BRT), artificial neural networks (ANN), and Bayesian networks (BN). Machine learning methods can learn complex patterns in the data but because of overfitting may not generalize well to new data. The statistical learning framework involves cross-validation (CV) training and testing data and a separate hold-out data set for model evaluation, with the goal of optimizing predictive performance by controlling for model overfit. The order of prediction performance according to both CV testing R2 and that for the hold-out data set was BRT > BN > ANN. For each method we identified two models based on CV testing results: that with maximum testing R2 and a version with R2 within one standard error of the maximum (the 1SE model). The former yielded CV training R2 values of 0.94–1.0. Cross-validation testing R2 values indicate predictive performance, and these were 0.22–0.39 for the maximum R2 models and 0.19–0.36 for the 1SE models. Evaluation with hold-out data suggested that the 1SE BRT and ANN models predicted better for an independent data set compared with the maximum R2 versions, which is relevant to extrapolation by mapping. Scatterplots of predicted vs. observed hold-out data obtained for final models helped identify prediction bias, which was fairly pronounced for ANN and BN. Lastly, the models were compared with multiple linear regression (MLR) and a previous random forest regression (RFR) model. Whereas BRT results were comparable to RFR, MLR had low hold-out R2 (0.07) and explained less than half the variation in the training data. Spatial patterns of predictions by the final, 1SE BRT model agreed reasonably well with previously observed patterns of nitrate occurrence in groundwater of the Central Valley.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.jhydrol.2015.10.025","usgsCitation":"Nolan, B.T., Fienen, M., and Lorenz, D.L., 2015, A statistical learning framework for groundwater nitrate models of the Central Valley, California, USA: Journal of Hydrology, v. 531, no. 3, p. 902-911, https://doi.org/10.1016/j.jhydrol.2015.10.025.","productDescription":"10 p.","startPage":"902","endPage":"911","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-065964","costCenters":[{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true}],"links":[{"id":471571,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.jhydrol.2015.10.025","text":"Publisher Index Page"},{"id":312041,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -122.025146484375,\n 40.73893324113603\n ],\n [\n -122.93701171874999,\n 40.38002840251183\n ],\n [\n -122.16796875,\n 38.048091067457236\n ],\n [\n -119.39941406249999,\n 34.95799531086792\n ],\n [\n -118.67431640625,\n 34.97600151317591\n ],\n [\n -118.795166015625,\n 36.19995805932895\n ],\n [\n -120.92651367187499,\n 38.38472766885085\n ],\n [\n -122.025146484375,\n 40.73893324113603\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"531","issue":"3","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5667ff32e4b06a3ea36c8e04","contributors":{"authors":[{"text":"Nolan, Bernard T. 0000-0002-6945-9659 btnolan@usgs.gov","orcid":"https://orcid.org/0000-0002-6945-9659","contributorId":2190,"corporation":false,"usgs":true,"family":"Nolan","given":"Bernard","email":"btnolan@usgs.gov","middleInitial":"T.","affiliations":[{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true}],"preferred":true,"id":573640,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fienen, Michael N. 0000-0002-7756-4651 mnfienen@usgs.gov","orcid":"https://orcid.org/0000-0002-7756-4651","contributorId":893,"corporation":false,"usgs":true,"family":"Fienen","given":"Michael N.","email":"mnfienen@usgs.gov","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":false,"id":573641,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lorenz, David L. 0000-0003-3392-4034 lorenz@usgs.gov","orcid":"https://orcid.org/0000-0003-3392-4034","contributorId":1384,"corporation":false,"usgs":true,"family":"Lorenz","given":"David","email":"lorenz@usgs.gov","middleInitial":"L.","affiliations":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":573642,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ]}