We assess flood overtopping potential (when flood water elevation exceeds levee elevation) to the levees surrounding the islands in the interior of California's Sacramento-San Joaquin Delta. Because critical natural gas infrastructure is susceptible to overtopping-related disruption, we focus our analysis on regions that are crossed by the network of the state's natural gas pipelines. We use laser scanning data collected during 2015-2016 to estimate subsidence rates since 2007 when an earlier, Delta-wide, airborne laser-scanning topographic dataset was collected. For each levee studied, we combine: (1) the estimated subsidence rate, (2) a conservative range of sea-level rise projections and, (3) an estimate of the 100-year freshwater flood stage to project the time until exceedance of the federal levee height standard (PL84-99). We find that subsidence rates vary from 0-5 centimeters per year (cm/yr) with mean values of ~1-2 cm/year. Local gradients in subsidence can be on the order of cms/yr over a distance of 10s of meters parallel to the levee crests, and these types of gradients are present near some pipeline crossings. The Sherman Island region has subsidence rates close to a factor of 2 greater than other areas considered. Our projections indicate general ranges of exceedance date from about 2060 (fast sea-level rise scenario) to 2080 (slow sea-level rise scenario) with some places projected to exceed threshold by about 2050.
","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"California’s fourth climate change assessment","largerWorkSubtype":{"id":2,"text":"State or Local Government Series"},"language":"English","publisher":"California Energy Commission","usgsCitation":"Brooks, B.A., Telling, J., Ericksen, T., Glennie, C.L., Knowles, N., Cayan, D., Hauser, D.L., and LeWinter, A., 2018, High resolution measurement of levee subsidence related to energy infrastructure in the Sacramento-San Joaquin Delta, vii, 51 p.","productDescription":"vii, 51 p.","ipdsId":"IP-097844","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":482492,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://climateassessment.ca.gov/techreports/full-list.html","linkFileType":{"id":5,"text":"html"}},{"id":482552,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Sacramento-San Joaquin Delta","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -121.25,\n 38.375\n ],\n [\n -122.1,\n 38.375\n ],\n [\n -122.1,\n 37.75\n ],\n [\n -121.25,\n 37.75\n ],\n [\n -121.25,\n 38.375\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Brooks, Benjamin A. 0000-0001-7954-6281 bbrooks@usgs.gov","orcid":"https://orcid.org/0000-0001-7954-6281","contributorId":5237,"corporation":false,"usgs":true,"family":"Brooks","given":"Benjamin","email":"bbrooks@usgs.gov","middleInitial":"A.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":928739,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Telling, Jennifer","contributorId":351507,"corporation":false,"usgs":false,"family":"Telling","given":"Jennifer","affiliations":[{"id":36391,"text":"University of Houston","active":true,"usgs":false}],"preferred":false,"id":928740,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ericksen, Todd Leroy 0000-0001-9340-575X","orcid":"https://orcid.org/0000-0001-9340-575X","contributorId":351508,"corporation":false,"usgs":false,"family":"Ericksen","given":"Todd Leroy","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":928741,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Glennie, Craig L.","contributorId":198143,"corporation":false,"usgs":false,"family":"Glennie","given":"Craig","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":928742,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Knowles, Noah 0000-0001-5652-1049","orcid":"https://orcid.org/0000-0001-5652-1049","contributorId":206338,"corporation":false,"usgs":true,"family":"Knowles","given":"Noah","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":928743,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cayan, Daniel","contributorId":213044,"corporation":false,"usgs":false,"family":"Cayan","given":"Daniel","affiliations":[{"id":38264,"text":"Scripps Institution of Oceanography","active":true,"usgs":false}],"preferred":false,"id":928744,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hauser, Darren L.","contributorId":202340,"corporation":false,"usgs":false,"family":"Hauser","given":"Darren","email":"","middleInitial":"L.","affiliations":[{"id":36391,"text":"University of Houston","active":true,"usgs":false}],"preferred":false,"id":928745,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"LeWinter, Adam","contributorId":192072,"corporation":false,"usgs":false,"family":"LeWinter","given":"Adam","affiliations":[],"preferred":false,"id":928746,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70198862,"text":"70198862 - 2018 - Landscape composition mediates movement and habitat selection in bobcats (Lynx rufus): Implications for conservation planning","interactions":[],"lastModifiedDate":"2018-08-24T11:53:49","indexId":"70198862","displayToPublicDate":"2018-08-01T08:25:42","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2602,"text":"Landscape Ecology","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Landscape composition mediates movement and habitat selection in bobcats (Lynx rufus): Implications for conservation planning","title":"Landscape composition mediates movement and habitat selection in bobcats (Lynx rufus): Implications for conservation planning","docAbstract":"The analysis of individual movement choices can be used to better understand population-level resource selection and inform management.
","language":"English","publisher":"Springer","doi":"10.1007/s10980-018-0654-8","usgsCitation":"Abouelezz, H., Donovan, T.M., Mickey, R.M., Murdock, J.N., Freeman, M., and Royar, K., 2018, Landscape composition mediates movement and habitat selection in bobcats (Lynx rufus): Implications for conservation planning: Landscape Ecology, v. 33, no. 8, p. 1301-1318, https://doi.org/10.1007/s10980-018-0654-8.","productDescription":"18 p.","startPage":"1301","endPage":"1318","ipdsId":"IP-090005","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":468552,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1007/s10980-018-0654-8","text":"Publisher Index Page"},{"id":356683,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"8","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2018-06-20","publicationStatus":"PW","scienceBaseUri":"5b98a296e4b0702d0e842f7b","contributors":{"authors":[{"text":"Abouelezz, Hanem","contributorId":171651,"corporation":false,"usgs":false,"family":"Abouelezz","given":"Hanem","email":"","affiliations":[],"preferred":false,"id":743230,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Donovan, Therese M. 0000-0001-8124-9251 tdonovan@usgs.gov","orcid":"https://orcid.org/0000-0001-8124-9251","contributorId":204296,"corporation":false,"usgs":true,"family":"Donovan","given":"Therese","email":"tdonovan@usgs.gov","middleInitial":"M.","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":true,"id":743147,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mickey, Ruth M.","contributorId":171666,"corporation":false,"usgs":false,"family":"Mickey","given":"Ruth","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":743231,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Murdock, James N.","contributorId":94309,"corporation":false,"usgs":true,"family":"Murdock","given":"James","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":743232,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Freeman, Mark","contributorId":171650,"corporation":false,"usgs":false,"family":"Freeman","given":"Mark","email":"","affiliations":[],"preferred":false,"id":743233,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Royar, Kim","contributorId":9886,"corporation":false,"usgs":true,"family":"Royar","given":"Kim","affiliations":[],"preferred":false,"id":743234,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70237370,"text":"70237370 - 2018 - Patterns and magnitude of flow alteration in California, USA","interactions":[],"lastModifiedDate":"2022-10-12T13:19:00.957201","indexId":"70237370","displayToPublicDate":"2018-08-01T08:14:15","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1696,"text":"Freshwater Biology","active":true,"publicationSubtype":{"id":10}},"title":"Patterns and magnitude of flow alteration in California, USA","docAbstract":"The Brandon Road Lock and Dam on the Des Plaines River near Joliet, Illinois, has been identified for potential implementation of aquatic nuisance species (ANS) control measures. To provide additional information concerning the flow hydraulics and mixing characteristics of the lock and downstream approach channel, the U.S. Geological Survey performed a detailed study of the site between December 2014 and October 2015, which included the collection and analysis of bathymetric, hydrodynamic, and dye tracer data. Synthesis of these data allowed a characterization of the site for future use in feasibility studies of potential ANS control technologies. The results of this study show a highly dynamic system driven primarily by lock operations but influenced by channel characteristics, industrial withdrawals, and meteorological forcing. Lock operation produces rapidly varying flows in the downstream approach channel, including transient oscillations that produce bidirectional flows. When the lock is not in operation, flows in the approach channel are primarily driven by leakage and wind forcing. Uniform concentrations of dissolved constituents in the lock chamber can be achieved by injection of the constituent into the existing lock filling and emptying system; however, valve and gate leakage can inhibit the mixing at the downstream end of the lock and substantially affects the ability to maintain a treated lock chamber at a uniform target concentration at tailwater level. Proper understanding of these hydraulic factors should be accounted for if the lock is to be used to deliver any dissolved constituent or operated in a way to prevent upstream passage of floating ANS. Moreover, extremely variable flow conditions including bidirectional flows and upstream return flows must be considered when implementing any ANS control technologies in the approach channel.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20185094","collaboration":"Prepared in cooperation with the Great Lakes Restoration Initiative","usgsCitation":"Engel, F.L., Jackson, P.R., and Murphy, E.A., 2018, Flow hydraulics and mixing characteristics in and downstream from Brandon Road Lock, Joliet, Illinois: U.S. Geological Survey Scientific Investigations Report 2018–5094, 32 p., https://doi.org/10.3133/sir20185094.","productDescription":"Report: vii, 32 p.; 8 Data Releases","numberOfPages":"44","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-091674","costCenters":[{"id":35680,"text":"Illinois-Iowa-Missouri Water Science Center","active":true,"usgs":true}],"links":[{"id":437814,"rank":11,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7K935SH","text":"USGS data release","linkHelpText":"Multibeam bathymetry and sediment depth data at select locations on the Des Plaines River near Joliet, Illinois, February 1314, 2017"},{"id":437813,"rank":11,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7S180NN","text":"USGS data release","linkHelpText":"Miscellaneous flow discharge measurements collected downstream of Brandon Road Lock and Dam"},{"id":437812,"rank":11,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F73F4MRV","text":"USGS data release","linkHelpText":"Bathymetric survey of the Brandon Road Dam Spillway, Joliet, Illinois"},{"id":437811,"rank":11,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F74747Z7","text":"USGS data release","linkHelpText":"Rhodamine WT dye concentrations measured at fixed locations in the Des Plaines River near Brandon Road Lock and Dam near Rockdale, Illinois (October 20-21,2015)"},{"id":437810,"rank":11,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F70G3H8C","text":"USGS data release","linkHelpText":"Spatial distribution of Rhodamine WT dye concentration measured in the Des Plaines River near Brandon Road Lock and Dam near Rockdale, Illinois (October 20-21, 2015)"},{"id":437809,"rank":11,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F77W69B7","text":"USGS data release","linkHelpText":"Rhodamine WT dye concentration profiles measured at fixed stations in the Brandon Road Lock chamber near Rockdale, Illinois (October 20, 2015)"},{"id":437808,"rank":11,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7VQ30S2","text":"USGS data release","linkHelpText":"Water surface elevation in the Brandon Road Lock chamber near Rockdale, Illinois (October 19-21, 2015)"},{"id":355952,"rank":9,"type":{"id":30,"text":"Data Release"},"url":"https://dx.doi.org/10.5066/F70G3H8C","text":"USGS data release","description":"USGS Data Release","linkHelpText":"Spatial distribution of Rhodamine WT dye concentration measured in the Des Plaines River near Brandon Road Lock and Dam near Rockdale, Illinois (October 20–21, 2015) "},{"id":355948,"rank":5,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7P26X39","text":"USGS data release","description":"USGS Data Release","linkHelpText":"Acoustic Doppler current profiler velocity and discharge measurements collected in and near the lock chamber of Brandon Road Lock and Dam, Joliet, Illinois, USA in December 2014 "},{"id":355949,"rank":6,"type":{"id":30,"text":"Data Release"},"url":"https://dx.doi.org/10.5066/F73F4MRV","text":"USGS data release","description":"USGS Data Release","linkHelpText":"Bathymetric survey of the Brandon Road Dam Spillway, Joliet, Illinois"},{"id":355950,"rank":7,"type":{"id":30,"text":"Data Release"},"url":"https://dx.doi.org/10.5066/F77W69B7","text":"USGS data release","description":"USGS Data Release","linkHelpText":"Rhodamine WT dye concentration profiles measured at fixed stations in the Brandon Road Lock chamber near Rockdale, Illinois (October 20, 2015)"},{"id":355953,"rank":10,"type":{"id":30,"text":"Data Release"},"url":"https://dx.doi.org/10.5066/F7VQ30S2","text":"USGS data release","description":"USGS Data Release","linkHelpText":"Water surface elevation in the Brandon Road Lock chamber near Rockdale, Illinois (October 19–21, 2015)"},{"id":355944,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2018/5094/coverthb.jpg"},{"id":355945,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2018/5094/sir20185094.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2018–5094"},{"id":355946,"rank":3,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7K935SH ","text":"USGS data release","description":"USGS Data Release","linkHelpText":"Multibeam bathymetry and sediment depth data at select locations on the Des Plaines River near Joliet, Illinois, February 13–14, 2017"},{"id":355947,"rank":4,"type":{"id":30,"text":"Data Release"},"url":"https://dx.doi.org/10.5066/F7S180NN","text":"USGS data release","description":"USGS Data Release","linkHelpText":"Miscellaneous flow discharge measurements collected downstream of Brandon Road Lock and Dam"},{"id":355951,"rank":8,"type":{"id":30,"text":"Data Release"},"url":"https://dx.doi.org/10.5066/F74747Z7","text":"USGS data release","description":"USGS Data Release","linkHelpText":"Rhodamine WT dye concentrations measured at fixed locations in the Des Plaines River near Brandon Road Lock and Dam near Rockdale, Illinois (October 20–21, 2015)"}],"country":"United States","state":"Illinois","city":"Joliet","otherGeospatial":"Brandon Road Lock","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -88.3333,\n 41.37474755643594\n ],\n [\n -88.03276062011719,\n 41.37474755643594\n ],\n [\n -88.03276062011719,\n 41.6333\n ],\n 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U.S. Geological Survey
405 N. Goodwin Ave.
Urbana, Illinois 61801
By altering essential micro- and macrohabitat conditions for many organisms, climate change is already causing disproportionately greater impacts on Arctic and Subarctic ecosystems. Yet there is a lack of basic information about many species in northern latitudes, including amphibians. We used radio telemetry to study the post-breeding movements and habitat use of wood frogs (Rana [=Lithobates] sylvatica) in the Hudson Bay Lowlands near Churchill, Manitoba, Canada. We tracked fifty-seven frogs (thirty-five males, twenty-two females; mean duration = 16.8 d) from three wetlands during the summers of 2015 and 2016. The three wetlands were representative of the Arctic–Subarctic ecotone, with each wetland surrounded by different proportions of boreal forest and tundra. Our results indicate that at the landscape scale, movement distances increased with temperature, and all frogs spent more time in the tundra habitat than in boreal forests, relative to the availability of each habitat type. At the microhabitat scale (1 m2 plots), frogs selected areas with greater amounts of standing water, sedge, and shrubs. These results provide information on terrestrial movement patterns and critical habitat data for northern populations of wood frogs in a Subarctic environment, which will aid in understanding how climate change will affect amphibians in this rapidly changing ecosystem.
","language":"English","publisher":"Taylor & Francis","doi":"10.1080/15230430.2018.1487657","usgsCitation":"Bishir, S., Hossack, B., Fishback, L., and Davenport, J.M., 2018, Post-breeding movement and habitat use by wood frogs along an Arctic–Subarctic ecotone: Arctic, Antarctic, and Alpine Research, v. 50, no. 1, e1487657, 9 p., https://doi.org/10.1080/15230430.2018.1487657.","productDescription":"e1487657, 9 p.","ipdsId":"IP-091059","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":468556,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1080/15230430.2018.1487657","text":"Publisher Index Page"},{"id":383381,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada","state":"Manitoba","otherGeospatial":"Hudson Bay Lowlands","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -93.92417907714844,\n 58.65086973752047\n ],\n [\n -93.65158081054688,\n 58.65086973752047\n ],\n [\n -93.65158081054688,\n 58.73970633523893\n ],\n [\n -93.92417907714844,\n 58.73970633523893\n ],\n [\n -93.92417907714844,\n 58.65086973752047\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"50","issue":"1","noUsgsAuthors":false,"publicationDate":"2018-07-31","publicationStatus":"PW","contributors":{"authors":[{"text":"Bishir, Stephanie","contributorId":251753,"corporation":false,"usgs":false,"family":"Bishir","given":"Stephanie","email":"","affiliations":[{"id":50394,"text":"1Department of Biology, Southeast Missouri State University, Cape Girardeau, MO, USA 63701","active":true,"usgs":false}],"preferred":false,"id":810496,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hossack, Blake R. 0000-0001-7456-9564","orcid":"https://orcid.org/0000-0001-7456-9564","contributorId":229347,"corporation":false,"usgs":true,"family":"Hossack","given":"Blake R.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":810497,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fishback, LeeAnn","contributorId":168514,"corporation":false,"usgs":false,"family":"Fishback","given":"LeeAnn","email":"","affiliations":[{"id":25316,"text":"Churchill Northern Studies Centre, P.O. Box 610, Churchill, Manitoba, R0B 0E0, Canada","active":true,"usgs":false}],"preferred":false,"id":810498,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Davenport, J. M.","contributorId":167622,"corporation":false,"usgs":false,"family":"Davenport","given":"J.","email":"","middleInitial":"M.","affiliations":[{"id":17621,"text":"Southeast Missouri State University","active":true,"usgs":false}],"preferred":false,"id":810499,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70194792,"text":"sir20175161 - 2018 - Simulation of zones of groundwater contribution to wells south of the Naval Weapons Industrial Reserve Plant in Bethpage, New York","interactions":[],"lastModifiedDate":"2018-07-31T14:19:31","indexId":"sir20175161","displayToPublicDate":"2018-07-31T12:00:00","publicationYear":"2018","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":"2017-5161","title":"Simulation of zones of groundwater contribution to wells south of the Naval Weapons Industrial Reserve Plant in Bethpage, New York","docAbstract":"A steady-state three-dimensional groundwater-flow model that simulates present conditions was coupled with the particle-tracking program MODPATH to delineate zones of contribution to wells pumping from the Magothy aquifer near a chlorinated volatile organic compound (VOC) plume. This modeling was part of a study by the U.S. Geological Survey in cooperation with the Naval Facilities Engineering Command to delineate groundwater near the Naval Weapons Industrial Reserve Plant in Bethpage, New York. Because rates of advection within the coarse-grained sediments typically exceed 0.1 foot per day, transport by dispersion and (or) diffusion was assumed to be negligible. Resulting zones of contribution are complex shapes, influenced by hydrogeologic features including confining beds and a basal gravel zone, and the interplay of nearby hydrologic stresses. The use of two particle tracking techniques identified zones of contribution to wells. Particles are backtracked from pumping well screens, and particles are forward tracked from the location of a VOC plume, as defined by surfaces of equal total VOC concentration. During any period of 5 years or less, about 1 to 3 percent of particles backtracked from pumping wells within a focus area intersected the 5-part per billion (ppb) VOC plume shell, indicating that the vast majority of particles were not sourced from the plume. During 5 years or less, none of the particles backtracked from pumping wells intersected the 50-ppb VOC plume shell. Forward-tracking techniques identified the fate of water within the VOC plume after 5 years as it moves toward ultimate well capture and (or) discharge to model constant head and drain boundaries. Out of 4,813 forward tracked particles started within the 50-ppb VOC plume shell, 1 forward-tracked particle was captured by well ANY8480. Out of 22,958 forward tracked particles started within the 5-ppb VOC plume shell, 100 were captured by production wells (less than 1 percent). The subset of forward pathlines that represent well plume capture are similar in number and shape to those of backtracked pathlines.
Model simulations were conducted to assess uncertainties and improve understanding of how variability in hydraulic properties, pumpage rates, and maximum particle traveltime affect delineation of zones of contribution. By use of driller’s’ logs, a transitional probability approach generated nine alternative realizations of heterogeneity within the Magothy aquifer to assess uncertainty in model representation. Fine-grained sediments with low hydraulic conductivity were realized as laterally discontinuous, thickening towards the south, and comprising about 27 percent of the total aquifer volume within the transitional probability subgrid. Model simulations with alternative pumpage rates, porosity terms, and alternative maximum particle traveltime were also used to demonstrate how the size and shape of zones of contribution may vary.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20175161","collaboration":"Prepared in cooperation with the Naval Facilities Engineering Command","usgsCitation":"Misut, P.E., 2018, Simulation of zones of groundwater contribution to wells south of the Naval Weapons Industrial Reserve Plant in Bethpage, New York: U.S. Geological Survey Scientific Investigations Report 2017–5161, 45 p., https://doi.org/10.3133/sir20175161.","productDescription":"Report: vii, 45 p.; Data release","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-087126","costCenters":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"links":[{"id":355559,"rank":3,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F770809V","text":"USGS data release","description":"USGS data release","linkHelpText":"MODFLOW-2005 model archive for simulation of zones of groundwater contribution to wells south of the Naval Weapons Industrial Reserve Plant in Bethpage, New York"},{"id":355557,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2017/5161/coverthb.jpg"},{"id":355558,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2017/5161/sir20175161.pdf","text":"Report","size":"13.1 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2017-5161"}],"country":"United States","state":"New York","city":"Bethpage","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -73.5167,\n 40.7167\n ],\n [\n -73.45,\n 40.7167\n ],\n [\n -73.45,\n 40.7667\n ],\n [\n -73.5167,\n 40.7667\n ],\n [\n -73.5167,\n 40.7167\n ]\n ]\n ]\n }\n }\n ]\n}","contact":"Director, New York Water Science Center
U.S. Geological Survey
2045 Route 112, Building 4
Coram, NY 11727
In an effort to simulate the survival of cyanobacteria as
they are transported from Lake Okeechobee to the estuarine
habitats that receive waters from the lake, a bioassay
encompassing a range of salinities was performed. An overall
decline in cyanobacteria health in salinity treatments greater
than 18 practical salinity units (psu) was indicated by loss of
cell membrane integrity based on SYTOX® Green staining,
but this loss varied by the kind of cyanobacteria present.
Microcystis aeruginosa was tolerant of salinities up to 18 psu;
however, higher salinities caused leaking of microcystin from
the cells. Dolichospermum circinale, another common bloomformer
in this system, did not tolerate salinities greater than
7.5 psu. Stimulation of mucilage production was observed and
is likely a mechanism used by both species to protect organism
viability. At 7.5 psu, microcystin increased relative to
chlorophyll-a, providing some evidence of biosynthesis when
M. aeruginosa is exposed to this salinity. This study indicates
that as freshwater cyanobacteria are transported to brackish
and marine waters, there will be a loss of membrane integrity
which will lead to the release of cellular microcystin into the
surrounding waterbody. Additional research would be needed
to determine the exact effect of salinity on this relationship.
Director, Caribbean-Florida Water Science Center
U.S. Geological Survey
4446 Pet Lane
Lutz, FL 33559
Today’s technology is opening up new ways to learn. Here, we introduce Tilt Trivia, a suite of quiz‐style, multiplayer games for use on mobile devices and tablets (Android or Apple) to help students learn simple definitions and facts. This mobile device game was built using the Unity engine and has a multiplayer functionality that runs seamlessly, all day, every day. A single game consists of 6–10 questions that are selected at random from a base suite of 13–33 questions. A single Tilt Trivia game takes 3–7 min to complete and allows up to five players to play simultaneously in the same game space. To begin, players select a topical avatar to represent them in the game. While in the competitive playing field, players are presented with a question and then they simply tilt their tablets until their avatar rests on the correct answer marker (i.e., true or false). Because the playing field is constantly tilting, keeping your avatar on the correct answer requires a continual counter‐tilting motion of the tablet to maintain your position within the game. A countdown timer is incorporated requiring players to answer the questions as quickly as possible. At the end of the game, a leaderboard displays the players’ scores and rankings, a metric that motivates repeat play. Players have the option of jostling other players off of the correct answer in the hopes of netting the highest score. The game is configurable to any topic and currently there are games for eight different topics (see Data and Resources).
","language":"English","publisher":"SSA","doi":"10.1785/0220180049","usgsCitation":"Kilb, D., Yang, A., Garrett, N., Pankow, K.L., Rubinstein, J.L., and Linville, L., 2018, Tilt Trivia: A free multiplayer app to learn geoscience concepts and definitions: Seismological Research Letters, v. 89, no. 5, p. 1908-1915, https://doi.org/10.1785/0220180049.","productDescription":"8 p.","startPage":"1908","endPage":"1915","ipdsId":"IP-087535","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":356030,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"89","issue":"5","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2018-07-18","publicationStatus":"PW","scienceBaseUri":"5b6fc3f0e4b0f5d57878e94d","contributors":{"authors":[{"text":"Kilb, Debi","contributorId":206552,"corporation":false,"usgs":false,"family":"Kilb","given":"Debi","affiliations":[{"id":37339,"text":"Scripps/UCSD","active":true,"usgs":false}],"preferred":false,"id":741056,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yang, Alan","contributorId":206553,"corporation":false,"usgs":false,"family":"Yang","given":"Alan","email":"","affiliations":[{"id":37339,"text":"Scripps/UCSD","active":true,"usgs":false}],"preferred":false,"id":741057,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Garrett, Nathan","contributorId":206554,"corporation":false,"usgs":false,"family":"Garrett","given":"Nathan","email":"","affiliations":[{"id":37340,"text":"Santana High School","active":true,"usgs":false}],"preferred":false,"id":741058,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pankow, Kristine L.","contributorId":204447,"corporation":false,"usgs":false,"family":"Pankow","given":"Kristine","email":"","middleInitial":"L.","affiliations":[{"id":13252,"text":"University of Utah","active":true,"usgs":false}],"preferred":false,"id":741059,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rubinstein, Justin L. 0000-0003-1274-6785 jrubinstein@usgs.gov","orcid":"https://orcid.org/0000-0003-1274-6785","contributorId":2404,"corporation":false,"usgs":true,"family":"Rubinstein","given":"Justin","email":"jrubinstein@usgs.gov","middleInitial":"L.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":741055,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Linville, Lisa","contributorId":206555,"corporation":false,"usgs":false,"family":"Linville","given":"Lisa","email":"","affiliations":[{"id":13252,"text":"University of Utah","active":true,"usgs":false}],"preferred":false,"id":741060,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70198331,"text":"70198331 - 2018 - Effectiveness of a fish ladder for two Neotropical migratory species in the Paraná River","interactions":[],"lastModifiedDate":"2018-12-05T14:23:10","indexId":"70198331","displayToPublicDate":"2018-07-31T09:15:45","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2681,"text":"Marine and Freshwater Research","active":true,"publicationSubtype":{"id":10}},"title":"Effectiveness of a fish ladder for two Neotropical migratory species in the Paraná River","docAbstract":"We evaluated fish ladder effectiveness at Porto Primavera Dam in the Upper Paraná River, for two Neotropical migratory fish species. Overall, 564 fish (448 Megaleporinus obtusidens and 116 M. piavussu) were PIT-tagged, released in upstream and downstream areas (on the left and right banks), and monitored continuously for 4 years. The fish performed two-way movements through the fish ladder, ascending from the tailrace and descending from the forebay. We registered 46 M. obtusidens (10.3%) and only 3 M. piavussu(2.6%) from the fish ladder, therefore all analyses were focused on M. obstusidens. Entry proportion ranged from 0 to 48.1% depending on release site and was greatest for fish released downstream near the fish ladder entrance. Entry times ranged from 3.0 to 384.0 days, and median times were 32.9 and 25.8 days for downstream and upstream, respectively. Of fish that entered the fish ladder, passage percentages were 80% for fish release downstream and 100% for fish released upstream, and median transit time was 0.7 and 0.9 hours, respectively. Results suggest that if guidance and entry conditions can be improved, this fish ladder design holds promise as an effective solution for providing passage in both directions.
","language":"English","publisher":"CSIRO","doi":"10.1071/MF18129","usgsCitation":"Gutfreund, C., Makrakis, S., Castro-Santos, T.R., Celestino, L., Dias, J.H., and Makrakis, M.C., 2018, Effectiveness of a fish ladder for two Neotropical migratory species in the Paraná River: Marine and Freshwater Research, v. 69, no. 12, p. 1848-1856, https://doi.org/10.1071/MF18129.","productDescription":"9 p.","startPage":"1848","endPage":"1856","ipdsId":"IP-096521","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":488793,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://doi.org/10.1071/MF18129","text":"External Repository"},{"id":356024,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"12","publishingServiceCenter":{"id":10,"text":"Baltimore PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b6fc3f0e4b0f5d57878e94f","contributors":{"authors":[{"text":"Gutfreund, Carola","contributorId":206568,"corporation":false,"usgs":false,"family":"Gutfreund","given":"Carola","email":"","affiliations":[],"preferred":false,"id":741162,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Makrakis, Sergio","contributorId":95349,"corporation":false,"usgs":true,"family":"Makrakis","given":"Sergio","email":"","affiliations":[],"preferred":false,"id":741163,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Castro-Santos, Theodore R. 0000-0003-2575-9120 tcastrosantos@usgs.gov","orcid":"https://orcid.org/0000-0003-2575-9120","contributorId":3321,"corporation":false,"usgs":true,"family":"Castro-Santos","given":"Theodore","email":"tcastrosantos@usgs.gov","middleInitial":"R.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":741164,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Celestino, Leandro","contributorId":206569,"corporation":false,"usgs":false,"family":"Celestino","given":"Leandro","email":"","affiliations":[],"preferred":false,"id":741165,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dias, Joao Henrique Pinheiro","contributorId":23843,"corporation":false,"usgs":true,"family":"Dias","given":"Joao","email":"","middleInitial":"Henrique Pinheiro","affiliations":[],"preferred":false,"id":741166,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Makrakis, Maristela Cavicchioli","contributorId":90208,"corporation":false,"usgs":true,"family":"Makrakis","given":"Maristela","email":"","middleInitial":"Cavicchioli","affiliations":[],"preferred":false,"id":741167,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70199871,"text":"70199871 - 2018 - Applications of the California pesticide use reporting database in more than 25 years of U.S. Geological Survey hydrological studies","interactions":[],"lastModifiedDate":"2020-08-19T20:16:22.872629","indexId":"70199871","displayToPublicDate":"2018-07-31T08:22:09","publicationYear":"2018","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"15","title":"Applications of the California pesticide use reporting database in more than 25 years of U.S. Geological Survey hydrological studies","docAbstract":"The U.S. Geological Survey (USGS) has been collecting data on the occurrence of pesticides in California surface and ground water since the 1970’s. The design of these studies benefited from the availability of the Pesticide Use Reporting (PUR) database of the California Department of Pesticide Regulation. Actual locations and dates of applications of active ingredient allow for effective design of studies that seek to understand which compounds can be mobilized from the point of application as well as the hydrological or climate-related factors that enhance the off-site transport. Key studies from the 1970’s to the present are discussed here and demonstrate how the USGS both designed studies and improved their analytical methodology to keep up with changes in how pesticides are used in California.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Managing and analyzing pesticide use data for pest management, environmental monitoring, public health, and public policy. ACS Symposium Series, Vol. 1283","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"American Chemical Society","doi":"10.1021/bk-2018-1283.ch015","usgsCitation":"Domagalski, J.L., and Orlando, J., 2018, Applications of the California pesticide use reporting database in more than 25 years of U.S. Geological Survey hydrological studies, chap. 15 of Managing and analyzing pesticide use data for pest management, environmental monitoring, public health, and public policy. ACS Symposium Series, Vol. 1283, p. 323-346, https://doi.org/10.1021/bk-2018-1283.ch015.","productDescription":"24 p.","startPage":"323","endPage":"346","ipdsId":"IP-093375","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":358018,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","publishingServiceCenter":{"id":1,"text":"Sacramento PSC"},"noUsgsAuthors":false,"publicationDate":"2018-07-31","publicationStatus":"PW","scienceBaseUri":"5bc02fcbe4b0fc368eb5397e","contributors":{"editors":[{"text":"Zhang, Minghua","contributorId":195323,"corporation":false,"usgs":false,"family":"Zhang","given":"Minghua","email":"","affiliations":[],"preferred":false,"id":747119,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Jackson, Scott 0000-0003-1272-9918","orcid":"https://orcid.org/0000-0003-1272-9918","contributorId":208420,"corporation":false,"usgs":false,"family":"Jackson","given":"Scott","affiliations":[],"preferred":false,"id":747120,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Robertson, Mark A.","contributorId":208421,"corporation":false,"usgs":false,"family":"Robertson","given":"Mark","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":747121,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Zeiss, Michael R.","contributorId":208422,"corporation":false,"usgs":false,"family":"Zeiss","given":"Michael","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":747123,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Domagalski, Joseph L. 0000-0002-6032-757X joed@usgs.gov","orcid":"https://orcid.org/0000-0002-6032-757X","contributorId":1330,"corporation":false,"usgs":true,"family":"Domagalski","given":"Joseph","email":"joed@usgs.gov","middleInitial":"L.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":747007,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Orlando, James 0000-0002-0099-7221","orcid":"https://orcid.org/0000-0002-0099-7221","contributorId":208413,"corporation":false,"usgs":true,"family":"Orlando","given":"James","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":747008,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70227831,"text":"70227831 - 2018 - Changing environmental gradients over forty years alter ecomorphological variation in Guadalupe Bass Micropterus treculii throughout a river basin","interactions":[],"lastModifiedDate":"2022-02-01T19:30:41.30855","indexId":"70227831","displayToPublicDate":"2018-07-30T14:28:19","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1467,"text":"Ecology and Evolution","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Changing environmental gradients over forty years alter ecomorphological variation in Guadalupe Bass Micropterus treculii throughout a river basin","title":"Changing environmental gradients over forty years alter ecomorphological variation in Guadalupe Bass Micropterus treculii throughout a river basin","docAbstract":"Understanding the degree of intraspecific variation within and among populations is a key aspect of predicting the capacity of a species to respond to anthropogenic disturbances. However, intraspecific variation is usually assessed at either limited temporal, but broad spatial scales or vice versa, which can make assessing changes in response to long-term disturbances challenging. We evaluated the relationship between the longitudinal gradient of changing flow regimes and land use/land cover patterns since 1980 and morphological variation of Guadalupe Bass Micropterus treculii throughout the Colorado River Basin of central Texas. The Colorado River Basin in Texas has experienced major alterations to the hydrologic regime due to changing land- and water-use patterns. Historical collections of Guadalupe Bass prior to rapid human-induced change present the unique opportunity to study the response of populations to varying environmental conditions through space and time. Morphological differentiation of Guadalupe Bass associated with temporal changes in flow regimes and land use/land cover patterns suggests that they are exhibiting intraspecific trait variability, with contemporary individuals showing increased body depth, in response to environmental alteration through time (specifically related to an increase in herbaceous land cover, maximum flows, and the number of low pulses and high pulses). Additionally, individuals from tributaries with increased hydrologic alteration associated with urbanization or agricultural withdrawals tended to have a greater distance between the anal and caudal fin. These results reveal trait variation that may help to buffer populations under conditions of increased urbanization and sprawl, human population growth, and climate risk, all of which impose novel selective pressures, especially on endemic species like Guadalupe Bass. Our results contribute an understanding of the adaptability and capacity of an endemic population to respond to expected future changes based on demographic or climatic projection.
","language":"English","publisher":"Wiley","doi":"10.1002/ece3.4349","usgsCitation":"Pease, J.E., Grabowski, T.B., Pease, A.A., and Bean, P.T., 2018, Changing environmental gradients over forty years alter ecomorphological variation in Guadalupe Bass Micropterus treculii throughout a river basin: Ecology and Evolution, v. 8, no. 16, p. 8508-8522, https://doi.org/10.1002/ece3.4349.","productDescription":"15 p.","startPage":"8508","endPage":"8522","ipdsId":"IP-093067","costCenters":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"links":[{"id":468558,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/ece3.4349","text":"Publisher Index Page"},{"id":395232,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Texas","otherGeospatial":"Colorado River Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -102.23876953125,\n 29.6880527498568\n ],\n [\n -94.98779296875,\n 29.6880527498568\n ],\n [\n -94.98779296875,\n 33.87041555094183\n ],\n [\n -102.23876953125,\n 33.87041555094183\n ],\n [\n -102.23876953125,\n 29.6880527498568\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"8","issue":"16","noUsgsAuthors":false,"publicationDate":"2018-07-30","publicationStatus":"PW","contributors":{"authors":[{"text":"Pease, Jessica E.","contributorId":201491,"corporation":false,"usgs":false,"family":"Pease","given":"Jessica","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":832393,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grabowski, Timothy B. 0000-0001-9763-8948 tgrabowski@usgs.gov","orcid":"https://orcid.org/0000-0001-9763-8948","contributorId":4178,"corporation":false,"usgs":true,"family":"Grabowski","given":"Timothy","email":"tgrabowski@usgs.gov","middleInitial":"B.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true},{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":true,"id":832392,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pease, Allison A.","contributorId":201493,"corporation":false,"usgs":false,"family":"Pease","given":"Allison","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":832394,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bean, Preston T.","contributorId":172956,"corporation":false,"usgs":false,"family":"Bean","given":"Preston","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":832395,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70195983,"text":"tm6A59 - 2018 - SWB Version 2.0—A soil-water-balance code for estimating net infiltration and other water-budget components","interactions":[],"lastModifiedDate":"2018-07-31T09:30:01","indexId":"tm6A59","displayToPublicDate":"2018-07-30T14:00:00","publicationYear":"2018","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":335,"text":"Techniques and Methods","code":"TM","onlineIssn":"2328-7055","printIssn":"2328-7047","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"6-A59","title":"SWB Version 2.0—A soil-water-balance code for estimating net infiltration and other water-budget components","docAbstract":"The U.S. Geological Survey’s Soil-Water-Balance (SWB) code was developed as a tool to estimate distribution and timing of net infiltration out of the root zone by means of an approach that uses readily available data and minimizes user effort required to begin a SWB application. SWB calculates other components of the water balance, including soil moisture, reference and actual evapotranspiration, snowfall, snowmelt, canopy interception, and crop-water demand. SWB is based on a modified Thornthwaite-Mather soil-water-balance approach, with components of the soil-water balance calculated at a daily time step. Net-infiltration calculations are computed by means of a rectangular grid of computational elements, which allows the calculated infiltration rates to be imported into grid-based regional groundwater-flow models. SWB makes use of gridded datasets, including datasets describing hydrologic soil groups, moisture-retaining capacity, flow direction, and land use. Climate data may be supplied in gridded or tabular form. The SWB 2.0 code described in this report extends capabilities of the original SWB version 1.0 model by adding new options for representing physical processes and additional data input and output capabilities. New methods included in SWB 2.0 allow for direct gridded input of externally calculated water-budget components (fog, septic, and storm-sewer leakage), simulation of canopy interception by several alternative processes, and a crop-water demand method for estimating irrigation amounts. New input and output capabilities allow for grids with differing spatial extents and projections to be combined without requiring the user to resample and resize the grids before use.
","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Section A: Groundwater in Book 6: Modeling techniques","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/tm6A59","collaboration":"Water Availability and Use Science ProgramDirector, Upper Midwest Water Science Center
U.S. Geological Survey
8505 Research Way
Middleton, WI 53562
Transit times are hypothesized to influence catchment sensitivity to atmospheric deposition of acidity and nitrogen (N) because they help determine the amount of time available for infiltrating precipitation to interact with catchment soil and biota. Transit time metrics, including fraction of young water (Fyw) and mean transit time (MTT), were calculated for 11 headwater catchments in mountains of the western United States based on differences in the amplitude of the seasonal signal of δ18O in streamflow and precipitation. Results were statistically compared with catchment characteristics to elucidate controlling mechanisms. Transit times also were compared with stream solute concentrations to test the hypothesis that transit times are a primary influence on weathering rates and biological assimilation of atmospherically deposited N. Results indicate that transit times in the study catchments are strongly related to soil, vegetation, and topographic characteristics, with barren terrain (bare rock and talus) and steep slopes linked to high Fyw and short MTT, whereas forest soil (hydrogroup B) was linked to low Fyw and greater MTT. Concentrations of silicate weathering products (Na+ and Si) were negatively related to Fyw and barren terrain, and positively related to MTT and forest soil, supporting the concept that weathering fluxes and buffering capacity tend to be low in alpine areas due to short transit times. Nitrate concentrations were positively related to N deposition, catchment slope, and barren terrain, and negatively related to forest, indicating that hydrologic and/or biogeochemical processes associated with steep slopes limit uptake of atmospherically deposited N by biota. Interannual and seasonal variability in transit times and source water contributions in the study catchments was substantial, reflecting the influence of strong temporal variations in snowmelt inputs in high‐elevation catchments of the western United States. Results from this study confirm that short transit times in these areas are a key reason they are highly sensitive to atmospheric pollution and climate change.
","language":"English","publisher":"Wiley","doi":"10.1002/hyp.13183","usgsCitation":"Clow, D.W., Mast, M.A., and Sickman, J.O., 2018, Linking transit times to catchment sensitivity to atmospheric deposition of acidity and nitrogen in mountains of the western United States: Hydrological Processes, v. 32, no. 16, p. 2456-2470, https://doi.org/10.1002/hyp.13183.","productDescription":"15 p.","startPage":"2456","endPage":"2470","ipdsId":"IP-094711","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"links":[{"id":468559,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/hyp.13183","text":"Publisher Index Page"},{"id":356185,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"16","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2018-07-04","publicationStatus":"PW","scienceBaseUri":"5b6fc3f1e4b0f5d57878e953","contributors":{"authors":[{"text":"Clow, David W. 0000-0001-6183-4824 dwclow@usgs.gov","orcid":"https://orcid.org/0000-0001-6183-4824","contributorId":1671,"corporation":false,"usgs":true,"family":"Clow","given":"David","email":"dwclow@usgs.gov","middleInitial":"W.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":741696,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mast, M. Alisa 0000-0001-6253-8162 mamast@usgs.gov","orcid":"https://orcid.org/0000-0001-6253-8162","contributorId":827,"corporation":false,"usgs":true,"family":"Mast","given":"M.","email":"mamast@usgs.gov","middleInitial":"Alisa","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":741708,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sickman, James O.","contributorId":30741,"corporation":false,"usgs":true,"family":"Sickman","given":"James","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":741709,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70190817,"text":"sir20175096 - 2018 - Geomorphology and vegetation change at Colorado River campsites, Marble and Grand Canyons, Arizona","interactions":[],"lastModifiedDate":"2018-07-31T09:27:14","indexId":"sir20175096","displayToPublicDate":"2018-07-30T10:19:18","publicationYear":"2018","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":"2017-5096","title":"Geomorphology and vegetation change at Colorado River campsites, Marble and Grand Canyons, Arizona","docAbstract":"Sandbars along the Colorado River are used as campsites by river runners and hikers and are an important recreational resource within Grand Canyon National Park, Arizona. Regulation of the flow of river water through Glen Canyon Dam has reduced the amount of sediment available to be deposited as sandbars, has reduced the magnitude and frequency of flooding events, and has increased the magnitude of baseflows. This has caused widespread erosion of sandbars and has allowed native and non-native vegetation to expand on open sand. Previous studies show an overall decline in campsite area despite the use of controlled floods to rebuild sandbars. Monitoring of campsites since 1998 has shown changes in campsite area, but the factors that cause gains and losses in campsite area have not been quantified. These factors include, among others, changes in sandbar volume and slope under different dam flow regimes that include controlled floods, gullying caused by monsoonal rains, vegetation expansion, and reworking of sediment by aeolian processes.
Using 4-band aerial imagery and digital elevation models (DEMs) derived from total-station survey data, we analyzed topographic and vegetation change at 35 of 37 long-term monitoring sites (2 sites were excluded because topographic measurements do not overlap with measurements of campsite area) using data collected between 2002 and 2009 to quantify the factors affecting the size of campsite area. Over the course of the study period, there was a net loss in campsite area of 2,431 square meters (m2). We find that (1) 53 percent of the net loss was caused by topographic change associated with controlled floods and erosion of those flood deposits, (2) 47 percent of the net loss was caused by increases in vegetation cover, the majority of which occurred in high-elevation campsite area, and (3) gullying was significant at certain sites but overall was a minor factor.
Sites in critical reaches—sections of river where campsites are infrequent or where there is high demand by river runners—were subjected to more erosion and changes in sandbar slope than sites in noncritical reaches, suggesting that campsite area is less stable in those reaches. There was also a greater increase in vegetation cover at sites in noncritical reaches than at sites in critical reaches. Our results show a continuation of sandbar erosion and vegetation encroachment that has been occurring at campsites since construction of the dam.
A new campsite survey methodology using a tablet-based geographic information system (GIS) approach was also developed in an effort to map campsite area on digital orthophotographs. Using a series of repeat measurements, we evaluated the inherent uncertainty in mapping campsite area, the accuracy of the new tablet-based method, and if there is any bias between the tablet method and the total-station method that is currently used. We find that uncertainty associated with surveyor judgment while using the total-station method is about 15 percent, which is higher than a previously reported uncertainty of 10 percent. Use of the tablet method adds additional uncertainty; however, the benefits of being able to quantify factors that lead to campsite-area change in the field may outweigh the additional error. Future campsite monitoring may need to consist of a combination of total-station and orthophotograph techniques.
SBSC Staff,
Southwest Biological Science Center
U.S. Geological Survey
2255 N. Gemini Drive
Flagstaff, AZ 86001
Land use changes often create in situ stress and eventual mortality in mangroves as unsuitable hydroperiods are created through tidal flow alterations. Here, we document mangrove forest and soil structural changes within transects established in tidally restricted areas on Marco Island (Collier County, Florida, USA), which has broad swaths of dead-standing or unhealthy mangroves (“ghost forests”). Transects (N = 4) were arranged to include full canopy, transitional, and open canopy (dead) forests, and compared to nearby reference forests. Aboveground and belowground carbon (C) stocks (Total C) ranged from 288 to 304 Mg C ha−1 on full canopy, transitional, and reference sites, which did not differ from each other. However, Total C was lower for dead sites (233 Mg C ha−1) dictated entirely by differences in aboveground C (live and dead trees, downed wood); no differences were found among forest condition in belowground C stocks. This belowground C has been persistent in the soil for 85 years since initial tidal restriction. Nevertheless, hydrologic rehabilitation has the potential to increase total C stocks on dead sites by 70–110 Mg C ha−1. Collapse of the soil surface by 6–8 cm just under the active root zone in chronically stressed mangroves was evident within the bulk density profiles from transitional versus dead sites, suggesting that surface elevation loss as root turnover ceases may work correlatively with chronic stressors (anoxia, P limitation) to affect rapid mortality of forests over short periods of time many years after stress initiation. Hydrologic rehabilitation of stressed or denuded mangroves must also include an understanding of how these soil processes might be re-established.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.ecss.2018.06.026","usgsCitation":"Krauss, K.W., Demopoulos, A.W., Cormier, N., From, A., McClain-Counts, J.P., and Lewis, R.R., 2018, Ghost forests of Marco Island: Mangrove mortality driven by belowground soil structural shifts during tidal hydrologic alteration: Estuarine, Coastal and Shelf Science, v. 212, p. 51-62, https://doi.org/10.1016/j.ecss.2018.06.026.","productDescription":"12 p.","startPage":"51","endPage":"62","ipdsId":"IP-092474","costCenters":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":468560,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.ecss.2018.06.026","text":"Publisher Index Page"},{"id":437817,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7736PSP","text":"USGS data release","linkHelpText":"Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017)"},{"id":437816,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7736PSP","text":"USGS data release","linkHelpText":"Baseline data for a hydrological restoration of a mangrove forest near Goodland, Florida (2015 - 2017)"},{"id":355999,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Marco Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -81.70137405395508,\n 25.89968845861266\n ],\n [\n -81.64060592651367,\n 25.89968845861266\n ],\n [\n -81.64060592651367,\n 25.956346884929715\n ],\n [\n -81.70137405395508,\n 25.956346884929715\n ],\n [\n -81.70137405395508,\n 25.89968845861266\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"212","publishingServiceCenter":{"id":5,"text":"Lafayette PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b6fc3f2e4b0f5d57878e957","contributors":{"authors":[{"text":"Krauss, Ken W. 0000-0003-2195-0729 kraussk@usgs.gov","orcid":"https://orcid.org/0000-0003-2195-0729","contributorId":2017,"corporation":false,"usgs":true,"family":"Krauss","given":"Ken","email":"kraussk@usgs.gov","middleInitial":"W.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":740995,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Demopoulos, Amanda W.J. 0000-0003-2096-4694 ademopoulos@usgs.gov","orcid":"https://orcid.org/0000-0003-2096-4694","contributorId":196216,"corporation":false,"usgs":true,"family":"Demopoulos","given":"Amanda","email":"ademopoulos@usgs.gov","middleInitial":"W.J.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":false,"id":740996,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cormier, Nicole 0000-0003-2453-9900 cormiern@usgs.gov","orcid":"https://orcid.org/0000-0003-2453-9900","contributorId":4262,"corporation":false,"usgs":true,"family":"Cormier","given":"Nicole","email":"cormiern@usgs.gov","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":740997,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"From, Andrew 0000-0002-6543-2627 froma@usgs.gov","orcid":"https://orcid.org/0000-0002-6543-2627","contributorId":169668,"corporation":false,"usgs":true,"family":"From","given":"Andrew","email":"froma@usgs.gov","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":740998,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"McClain-Counts, Jennifer P. 0000-0002-3383-5472 jmcclaincounts@usgs.gov","orcid":"https://orcid.org/0000-0002-3383-5472","contributorId":200713,"corporation":false,"usgs":true,"family":"McClain-Counts","given":"Jennifer","email":"jmcclaincounts@usgs.gov","middleInitial":"P.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":740999,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lewis, Roy R. III","contributorId":206546,"corporation":false,"usgs":false,"family":"Lewis","given":"Roy","suffix":"III","email":"","middleInitial":"R.","affiliations":[{"id":37338,"text":"Coastal Resources Group, Inc.","active":true,"usgs":false}],"preferred":false,"id":741000,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70227672,"text":"70227672 - 2018 - Evaluation of vegetation-fire dynamics in the Okefenokee National Wildlife Refuge, Georgia, USA, with a Bayesian belief network","interactions":[],"lastModifiedDate":"2022-01-26T16:13:33.03348","indexId":"70227672","displayToPublicDate":"2018-07-28T10:09:09","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of vegetation-fire dynamics in the Okefenokee National Wildlife Refuge, Georgia, USA, with a Bayesian belief network","docAbstract":"Vegetation response to wildfire has been studied extensively in upland ecosystems, but fire effects on temperate wetlands are less understood. We evaluated vegetation response to extensive wildfire in wetlands of Okefenokee National Wildlife Refuge (ONWR), USA, with a spatially explicit Bayesian belief network model informed with data recorded during 1990–2012. We assessed model accuracy and effects of fire frequency on vegetation composition with predictive scenarios of fire absence or a fire return interval (FRI) every 5 or 10 years during 2012–2032. In fire absence, shrubs increased 100%, primarily in the northern half of the Refuge, while the herbaceous class that was widespread in 2012 was eliminated. Areas dominated by forest during the past ~65 years were maintained with the 5- and 10-year FRI. Herbaceous-dominated areas maintained with the 5-year FRI decreased (90%) with the 10-year FRI. Shrub coverage increased with fire (17%, 5-year FRI; 20%, 10-year FRI), while scrub/shrub decreased (12%; 5-year FRI) or increased (6%; 10-year FRI). A 5-year FRI during conditions promoting severe fire may maintain the distribution of herbaceous and forested areas that followed an extensive drought and fires in 2011, and may limit scrub/shrub expansion that previously occurred with longer FRIs in the ONWR.
","language":"English","publisher":"Springer Link","doi":"10.1007/s13157-018-1033-6","usgsCitation":"Loftin, C., Guyette, M., and Wetzel, P., 2018, Evaluation of vegetation-fire dynamics in the Okefenokee National Wildlife Refuge, Georgia, USA, with a Bayesian belief network: Wetlands, v. 38, p. 819-834, https://doi.org/10.1007/s13157-018-1033-6.","productDescription":"16 p.","startPage":"819","endPage":"834","ipdsId":"IP-059938","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":394873,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Georgia","otherGeospatial":"Okefenokee National Wildlife Refuge","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -82.5567626953125,\n 30.552800413453546\n ],\n [\n -82.08984375,\n 30.552800413453546\n ],\n [\n -82.08984375,\n 31.07\n ],\n [\n -82.5567626953125,\n 31.07\n ],\n [\n -82.5567626953125,\n 30.552800413453546\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"38","noUsgsAuthors":false,"publicationDate":"2018-07-28","publicationStatus":"PW","contributors":{"authors":[{"text":"Loftin, Cyndy 0000-0001-9104-3724 cyndy_loftin@usgs.gov","orcid":"https://orcid.org/0000-0001-9104-3724","contributorId":146427,"corporation":false,"usgs":true,"family":"Loftin","given":"Cyndy","email":"cyndy_loftin@usgs.gov","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":true,"id":831679,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Guyette, Margaret Q.","contributorId":272181,"corporation":false,"usgs":false,"family":"Guyette","given":"Margaret Q.","affiliations":[{"id":56366,"text":"St. Johns River Management District, Bureau of Water Resource Information, Palatka, FL","active":true,"usgs":false}],"preferred":false,"id":831680,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wetzel, Paul R.","contributorId":272182,"corporation":false,"usgs":false,"family":"Wetzel","given":"Paul R.","affiliations":[{"id":56367,"text":"Center for the Environment, Ecological Design, and Sustainability, Smith College, Northampton, MA","active":true,"usgs":false}],"preferred":false,"id":831681,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70198300,"text":"70198300 - 2018 - Host feeding ecology and trophic position significantly influence isotopic discrimination between a generalist ectoparasite and its hosts: Implications for parasite-host trophic studies","interactions":[],"lastModifiedDate":"2018-07-30T09:49:12","indexId":"70198300","displayToPublicDate":"2018-07-27T20:11:04","publicationYear":"2018","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5453,"text":"Food Webs","active":true,"publicationSubtype":{"id":10}},"title":"Host feeding ecology and trophic position significantly influence isotopic discrimination between a generalist ectoparasite and its hosts: Implications for parasite-host trophic studies","docAbstract":"Despite being one of the most prevalent forms of consumerism in ecological communities, parasitism has largely been excluded from food-web models. Stable isotope analysis of consumers and their diets has been widely used in the study of food webs for decades. However, the amount of information regarding parasite stable isotope ecology is limited, restricting the ability of ecologists to use stable isotope analysis to study parasites in food webs. This study took advantage of distinct differences in the feeding ecology and trophic position of different species of fish known to host the same common micropredatory gnathiid isopod to study the effects of host stable isotope ecology on that of the associated micropredator. Blood engorged juvenile gnathiids were in most cases indistinguishable from their hosts' blood, but significant isotope discrimination was observed for adults. Males were generally lower in δ13C and δ15N than host blood whereas host-specific isotopic discrimination for females varied among the different host species. Model predictions indicated that there is a significant effect of host blood isotope ratios on the rate of carbon and nitrogen isotopic discrimination between gnathiids and their host’s blood. As such, general differences in the feeding ecology and trophic positions of the different host species were reflected in their associated gnathiids, indicating that stable isotope analysis of gnathiids can provide significant details concerning previous hosts. The results presented herein have significant implications for how stable isotopes may be used as a tool to study the trophic dynamics and feeding ecology of gnathiids.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.fooweb.2018.e00092","usgsCitation":"Jenkins, W.G., Demopoulos, A.W., and Sikkel, P.C., 2018, Host feeding ecology and trophic position significantly influence isotopic discrimination between a generalist ectoparasite and its hosts: Implications for parasite-host trophic studies: Food Webs, v. 16, Article e00092, https://doi.org/10.1016/j.fooweb.2018.e00092.","productDescription":"Article e00092","ipdsId":"IP-095826","costCenters":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":468561,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.fooweb.2018.e00092","text":"Publisher Index Page"},{"id":437818,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7416WBQ","text":"USGS data release","linkHelpText":"Host Feeding Ecology and Trophic Position Significantly influence Isotopic discrimination between a Generalist Ectoparasite and its hosts: Implications for parasite host trophic studies"},{"id":355993,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","publishingServiceCenter":{"id":5,"text":"Lafayette PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b6fc3f2e4b0f5d57878e95b","contributors":{"authors":[{"text":"Jenkins, William G. 0000-0001-5133-2628","orcid":"https://orcid.org/0000-0001-5133-2628","contributorId":200936,"corporation":false,"usgs":false,"family":"Jenkins","given":"William","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":740949,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Demopoulos, Amanda W.J. 0000-0003-2096-4694 ademopoulos@usgs.gov","orcid":"https://orcid.org/0000-0003-2096-4694","contributorId":196216,"corporation":false,"usgs":true,"family":"Demopoulos","given":"Amanda","email":"ademopoulos@usgs.gov","middleInitial":"W.J.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":false,"id":740950,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sikkel, Paul C.","contributorId":140403,"corporation":false,"usgs":false,"family":"Sikkel","given":"Paul","email":"","middleInitial":"C.","affiliations":[{"id":13476,"text":"Arkansas State University, State University, AR","active":true,"usgs":false}],"preferred":false,"id":740951,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70197360,"text":"ds1088 - 2018 - Detections of current-use pesticides at 12 surface water sites in California during a 2-year period beginning in 2015","interactions":[],"lastModifiedDate":"2018-07-30T10:37:03","indexId":"ds1088","displayToPublicDate":"2018-07-27T13:39:52","publicationYear":"2018","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":"1088","title":"Detections of current-use pesticides at 12 surface water sites in California during a 2-year period beginning in 2015","docAbstract":"Surface water samples were collected by the U.S. Geological Survey and multiple cooperators during base flow/irrigation runoff and storm runoff conditions from 12 sites throughout California, over 2 consecutive years beginning in April 2015, from both urban and agriculturally dominated watersheds. Water samples were analyzed by gas chromatography/mass spectrometry and liquid chromatrography/tandem mass spectrometry for a suite of 157 pesticides and degradates. Suspended sediments associated with these water samples were analyzed by gas chromatography/mass spectrometry for a suite of 131 pesticides and degradates. Overall, 85 pesticides and degradates were detected in the water: 32 fungicides, 25 herbicides, 27 insecticides, and 1 synergist. In the suspended sediment, 29 pesticides were detected: 9 fungicides, 10 herbicides, and 10 insecticides. Sixteen pesticides (bifenthrin, carbendazim, chlorpyrifos, clothianidin, diazinon, diuron, fenpyroximate, fipronil, fipronil sulfone, fluopicolide, imidacloprid, metolachlor, novaluron, oxyflurofen, permethrin, and simazine) were detected in the water at concentrations that were above at least one aquatic life benchmark value as defined by the U.S Environmental Protection Agency.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ds1088","collaboration":"Prepared in cooperation with the Central Valley Regional Water Quality Control Board","usgsCitation":"Sanders, C.J., Orlando, J.L., and Hladik, M.L., 2018, Detections of current-use pesticides at 12 surface water sites in California during a 2-year period beginning in 2015: U.S. Geological Survey Data Series 1088, 40 p., https://doi.org/10.3133/ds1088.","productDescription":"Report: viii; 40 p.; 2 Tables","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-086505","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":355893,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/ds/1088/ds1088.pdf","text":"Report","size":"5 MB","linkFileType":{"id":1,"text":"pdf"},"description":"DS 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