This chapter provides an overview of geochemical modeling that applies to water–rock interactions under ambient conditions of temperature and pressure. Topics include modeling definitions, historical background, issues of activity coefficients, popular codes and databases, examples of modeling common types of water–rock interactions, and issues of model reliability. Examples include speciation, microbial redox kinetics and ferrous iron oxidation, calcite dissolution, pyrite oxidation, combined pyrite and calcite dissolution, dedolomitization, seawater–carbonate groundwater mixing, reactive-transport modeling in streams, modeling catchments, and evaporation of seawater. The chapter emphasizes limitations to geochemical modeling: that a proper understanding and ability to communicate model results well are as important as completing a set of useful modeling computations and that greater sophistication in model and code development is not necessarily an advancement. If the goal is to understand how a particular geochemical system behaves, it is better to collect more field data than rely on computer codes.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Reference module in earth systems and environmental sciences: Treatise on geochemistry","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam","doi":"10.1016/B978-0-08-095975-7.00502-7","usgsCitation":"Nordstrom, D.K., and Campbell, K.M., 2014, Modeling low-temperature geochemical processes:, chap. 7.2 of Reference module in earth systems and environmental sciences: Treatise on geochemistry, v. 7, p. 27-68, https://doi.org/10.1016/B978-0-08-095975-7.00502-7.","productDescription":"42 p.","startPage":"27","endPage":"68","ipdsId":"IP-038052","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":345118,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","edition":"2nd Edition","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"599fe5bce4b038630d022110","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":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":false,"id":706839,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Campbell, Kate M. 0000-0002-8715-5544 kcampbell@usgs.gov","orcid":"https://orcid.org/0000-0002-8715-5544","contributorId":1441,"corporation":false,"usgs":true,"family":"Campbell","given":"Kate","email":"kcampbell@usgs.gov","middleInitial":"M.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":706840,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70112913,"text":"sir20145073 - 2014 - Streamflow, water quality, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007-12","interactions":[],"lastModifiedDate":"2014-06-18T15:06:54","indexId":"sir20145073","displayToPublicDate":"2014-06-18T15:01:00","publicationYear":"2014","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":"2014-5073","title":"Streamflow, water quality, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007-12","docAbstract":"Efforts to mitigate the effects of urbanization on streams rely on best management practices (BMPs) that are implemented with the intent of reducing and retaining stormwater runoff. A cooperative monitoring effort between the U.S. Geological Survey and Fairfax County, Virginia, was initiated in 2007 to assess the condition of county streams and document watershed-scale responses to the implementation of BMPs. Assessment of the data collected during the first 5 years of this monitoring program focused on characterizing the hydrologic and ecological condition of 14 monitored streams.
\nHydrologic, chemical, and macroinvertebrate community conditions in the streams monitored were found to be consistent, overall, with conditions commonly observed in urban streams. Hydrologically, the monitored streams were found to be flashy, with flashiness positively related to road cover in the watershed. Typical pH values of streams throughout the network centered around neutrality (pH = 7) with strong daily fluctuations apparent in the continuous data. Patterns in specific conductance were largely representative of anthropogenic disturbances—watersheds having the greatest percentage of open space and estate residential land-use had the lowest typical specific conductance values, and specific conductance variability was less than what is observed in watersheds that are more intensively developed. In watersheds having greater road coverage, and more development in general, increases in specific conductance over several orders of magnitude were observed during winter months as a result of the application of de-icing salts on impervious surfaces. Dissolved oxygen conditions were typically within the range required to support healthy biological communities, although occasional departures during summer months at some sites fell below the impairment threshold for streams in Virginia.
\nNitrogen (N) and phosphorus (P), concentration patterns were largely consistent across the network, with few exceptions. Nitrogen concentrations in monthly samples were generally low and dominated by nitrate. Exceptions to the generally low N concentrations occurred at Captain Hickory Run, which had a median total N concentration of approximately 4.9 milligrams per liter (mg/L), compared to the network-wide median of approximately 1.7 mg/L, and at Popes Head Creek Tributary, where total N concentrations spiked to 6–8 mg/L during low-flow periods in August or September of each year. Phosphorus concentrations in monthly samples were generally low and dominated by the dissolved fraction. Two monitoring stations in the network, Flatlick Branch and Frog Branch, are notable for having median total P concentrations that were, on average, approximately three times greater than the median total P concentration of 0.02 mg/L observed at the other 12 stations in the network.
\nSuspended-sediment and nutrient loads and yields were similar to those of urbanized watersheds in other studies, although the yields from these urbanized basins were greater than, or within, the upper quartile of yields observed throughout the Chesapeake Bay watershed. Annual suspended-sediment loads ranged from 289–10,275 tons, with a median of 1,311 tons, and corresponding yields ranged from 107–2,827 tons per square mile (ton/mi2), with a median of 277 ton/mi2. Annual total N loads ranged from 8,014–36,413 pounds, with a median of 21,314 pounds, and corresponding yields ranged from 3,361–8,360 pounds per square mile (lb/mi2), with a median of 6,200 lb/mi2. Annual total P loads ranged from 380–6,558 pounds, with a median of 1,874 pounds, and corresponding yields ranged from 140–1,562 lb/mi2, with a median of 543 lb/mi2.
\nBenthic macroinvertebrate community metrics indicated that streams throughout Fairfax County are generally of poor health. One station, Castle Creek, was an exception with results indicating relatively high quality aquatic health.
\nSix additional monitoring stations were added to the network in 2012 to improve spatial coverage throughout Fairfax County. Monitoring activities are expected to continue at all 20 stations for the foreseeable future as BMP implementation is conducted.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20145073","issn":"2328-0328","isbn":"978-1-4113-3788-6","collaboration":"Prepared in cooperation with Fairfax County, Virginia","usgsCitation":"Jastram, J.D., 2014, Streamflow, water quality, and aquatic macroinvertebrates of selected streams in Fairfax County, Virginia, 2007-12: U.S. Geological Survey Scientific Investigations Report 2014-5073, x, 68 p., https://doi.org/10.3133/sir20145073.","productDescription":"x, 68 p.","numberOfPages":"82","onlineOnly":"N","temporalStart":"2007-01-01","temporalEnd":"2012-12-31","ipdsId":"IP-051336","costCenters":[{"id":614,"text":"Virginia Water Science Center","active":true,"usgs":true}],"links":[{"id":288839,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20145073.jpg"},{"id":288837,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2014/5073/"},{"id":288838,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2014/5073/pdf/sir2014-5073.pdf"}],"scale":"2000000","country":"United States","state":"Virginia","county":"Fairfax County","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -77.5,38.666667 ], [ -77.5,39.0 ], [ -77.0,39.0 ], [ -77.0,38.666667 ], [ -77.5,38.666667 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7843e4b0abf75cf2cf70","contributors":{"authors":[{"text":"Jastram, John D. 0000-0002-9416-3358 jdjastra@usgs.gov","orcid":"https://orcid.org/0000-0002-9416-3358","contributorId":3531,"corporation":false,"usgs":true,"family":"Jastram","given":"John","email":"jdjastra@usgs.gov","middleInitial":"D.","affiliations":[{"id":37759,"text":"VA/WV Water Science Center","active":true,"usgs":true}],"preferred":true,"id":494913,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70112760,"text":"70112760 - 2014 - Methylmercury production in sediment from agricultural and non-agricultural wetlands in the Yolo Bypass, California, USA","interactions":[],"lastModifiedDate":"2018-09-25T09:25:04","indexId":"70112760","displayToPublicDate":"2014-06-18T12:59:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Methylmercury production in sediment from agricultural and non-agricultural wetlands in the Yolo Bypass, California, USA","docAbstract":"As part of a larger study of mercury (Hg) biogeochemistry and bioaccumulation in agricultural (rice growing) and non-agricultural wetlands in California's Central Valley, USA, seasonal and spatial controls on methylmercury (MeHg) production were examined in surface sediment. Three types of shallowly-flooded agricultural wetlands (white rice, wild rice, and fallow fields) and two types of managed (non-agricultural) wetlands (permanently and seasonally flooded) were sampled monthly-to-seasonally. Dynamic seasonal changes in readily reducible ‘reactive’ mercury (Hg(II)R), Hg(II)-methylation rate constants (kmeth), and concentrations of electron acceptors (sulfate and ferric iron) and donors (acetate), were all observed in response to field management hydrology, whereas seasonal changes in these parameters were more muted in non-agricultural managed wetlands. Agricultural wetlands exhibited higher sediment MeHg concentrations than did non-agricultural wetlands, particularly during the fall through late-winter (post-harvest) period. Both sulfate- and iron-reducing bacteria have been implicated in MeHg production, and both were demonstrably active in all wetlands studied. Stoichiometric calculations suggest that iron-reducing bacteria dominated carbon flow in agricultural wetlands during the growing season. Sulfate-reducing bacteria were not stimulated by the addition of sulfate-based fertilizer to agricultural wetlands during the growing season, suggesting that labile organic matter, rather than sulfate, limited their activity in these wetlands. Along the continuum of sediment geochemical conditions observed, values of kmeth increased approximately 10,000-fold, whereas Hg(II)R decreased 100-fold. This suggests that, with respect to the often opposing trends of Hg(II)-methylating microbial activity and Hg(II) availability for methylation, microbial activity dominated the Hg(II)-methylation process, and that along this biogeochemical continuum, conditions that favored microbial sulfate reduction resulted in the highest calculated MeHg production potential rates. Rice straw management options aimed at limiting labile carbon supplies to surface sediment during the post-harvest fall–winter period may be effective in limiting MeHg production within agricultural wetlands.","language":"English","publisher":"Elsevier","doi":"10.1016/j.scitotenv.2013.09.098","usgsCitation":"Marvin-DiPasquale, M., Windham-Myers, L., Agee, J.L., Kakouros, E., Kieu, L.H., Fleck, J., Alpers, C.N., and Stricker, C.A., 2014, Methylmercury production in sediment from agricultural and non-agricultural wetlands in the Yolo Bypass, California, USA: Science of the Total Environment, v. 484, p. 288-299, https://doi.org/10.1016/j.scitotenv.2013.09.098.","productDescription":"12 p.","startPage":"288","endPage":"299","numberOfPages":"12","ipdsId":"IP-046333","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":288819,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":288818,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.scitotenv.2013.09.098"}],"country":"United States","state":"California","otherGeospatial":"Yolo Bypass","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -121.8128,38.2329 ], [ -121.8128,38.5804 ], [ -121.5097,38.5804 ], [ -121.5097,38.2329 ], [ -121.8128,38.2329 ] ] ] } } ] }","volume":"484","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7779e4b0abf75cf2c13f","contributors":{"authors":[{"text":"Marvin-DiPasquale, Mark","contributorId":57423,"corporation":false,"usgs":true,"family":"Marvin-DiPasquale","given":"Mark","affiliations":[],"preferred":false,"id":494872,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Windham-Myers, Lisamarie 0000-0003-0281-9581 lwindham-myers@usgs.gov","orcid":"https://orcid.org/0000-0003-0281-9581","contributorId":2449,"corporation":false,"usgs":true,"family":"Windham-Myers","given":"Lisamarie","email":"lwindham-myers@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":494868,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Agee, Jennifer L. 0000-0002-5964-5079 jlagee@usgs.gov","orcid":"https://orcid.org/0000-0002-5964-5079","contributorId":2586,"corporation":false,"usgs":true,"family":"Agee","given":"Jennifer","email":"jlagee@usgs.gov","middleInitial":"L.","affiliations":[{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":494869,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kakouros, Evangelos 0000-0002-4778-4039 kakouros@usgs.gov","orcid":"https://orcid.org/0000-0002-4778-4039","contributorId":2587,"corporation":false,"usgs":true,"family":"Kakouros","given":"Evangelos","email":"kakouros@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true}],"preferred":true,"id":494870,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kieu, Le H. lkieu@usgs.gov","contributorId":25115,"corporation":false,"usgs":true,"family":"Kieu","given":"Le","email":"lkieu@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":false,"id":494871,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fleck, Jacob A. 0000-0002-3217-3972 jafleck@usgs.gov","orcid":"https://orcid.org/0000-0002-3217-3972","contributorId":1498,"corporation":false,"usgs":true,"family":"Fleck","given":"Jacob A.","email":"jafleck@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":494867,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Alpers, Charles N. 0000-0001-6945-7365 cnalpers@usgs.gov","orcid":"https://orcid.org/0000-0001-6945-7365","contributorId":411,"corporation":false,"usgs":true,"family":"Alpers","given":"Charles","email":"cnalpers@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":494865,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Stricker, Craig A. 0000-0002-5031-9437 cstricker@usgs.gov","orcid":"https://orcid.org/0000-0002-5031-9437","contributorId":1097,"corporation":false,"usgs":true,"family":"Stricker","given":"Craig","email":"cstricker@usgs.gov","middleInitial":"A.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":494866,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70095563,"text":"sir20145032 - 2014 - Simulation of the effects of rainfall and groundwater use on historical lake water levels, groundwater levels, and spring flows in central Florida","interactions":[],"lastModifiedDate":"2014-06-18T12:47:57","indexId":"sir20145032","displayToPublicDate":"2014-06-18T12:42:00","publicationYear":"2014","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":"2014-5032","title":"Simulation of the effects of rainfall and groundwater use on historical lake water levels, groundwater levels, and spring flows in central Florida","docAbstract":"The urbanization of central Florida has progressed substantially in recent decades, and the total population in Lake, Orange, Osceola, Polk, and Seminole Counties more than quadrupled from 1960 to 2010. The Floridan aquifer system is the primary source of water for potable, industrial, and agricultural purposes in central Florida. Despite increases in groundwater withdrawals to meet the demand of population growth, recharge derived by infiltration of rainfall in the well-drained karst terrain of central Florida is the largest component of the long-term water balance of the Floridan aquifer system. To complement existing physics-based groundwater flow models, artificial neural networks and other data-mining techniques were used to simulate historical lake water level, groundwater level, and spring flow at sites throughout the area.
\nHistorical data were examined using descriptive statistics, cluster analysis, and other exploratory analysis techniques to assess their suitability for more intensive data-mining analysis. Linear trend analyses of meteorological data collected by the National Oceanic and Atmospheric Administration at 21 sites indicate 67 percent of sites exhibited upward trends in air temperature over at least a 45-year period of record, whereas 76 percent exhibited downward trends in rainfall over at least a 95-year period of record. Likewise, linear trend analyses of hydrologic response data, which have varied periods of record ranging in length from 10 to 79 years, indicate that water levels in lakes (307 sites) were about evenly split between upward and downward trends, whereas water levels in 69 percent of wells (out of 455 sites) and flows in 68 percent of springs (out of 19 sites) exhibited downward trends. Total groundwater use in the study area increased from about 250 million gallons per day (Mgal/d) in 1958 to about 590 Mgal/d in 1980 and remained relatively stable from 1981 to 2008, with a minimum of 559 Mgal/d in 1994 and a maximum of 773 Mgal/d in 2000. The change in groundwater-use trend in the early 1980s and the following period of relatively slight trend is attributable to the concomitant effects of increasing public-supply withdrawals and decreasing use of water by the phosphate industry and agriculture.
\nOn the basis of available historical data and exploratory analyses, empirical lake water-level, groundwater-level, and spring-flow models were developed for 22 lakes, 23 wells, and 6 springs. Input time series consisting of various frequencies and frequency-band components of daily rainfall (1942 to 2008) and monthly total groundwater use (1957 to 2008) resulted in hybrid signal-decomposition artificial neural network models. The final models explained much of the variability in observed hydrologic data, with 43 of the 51 sites having coefficients of determination exceeding 0.6, and the models matched the magnitude of the observed data reasonably well, such that models for 32 of the 51 sites had root-mean-square errors less than 10 percent of the measured range of the data. The Central Florida Artificial Neural Network Decision Support System was developed to integrate historical databases and the 102 site-specific artificial neural network models, model controls, and model output into a spreadsheet application with a graphical user interface that allows the user to simulate scenarios of interest.
\nOverall, the data-mining analyses indicate that the Floridan aquifer system in central Florida is a highly conductive, dynamic, open system that is strongly influenced by external forcing. The most important external forcing appears to be rainfall, which explains much of the multiyear cyclic variability and long-term downward trends observed in lake water levels, groundwater levels, and spring flows. For most sites, groundwater use explains less of the observed variability in water levels and flows than rainfall. Relative groundwater-use impacts are greater during droughts, however, and long-term trends in water levels and flows were identified that are consistent with historical groundwater-use patterns. The sensitivity of the hydrologic system to rainfall is expected, owing to the well-drained karst terrain and relatively thin confinement of the Floridan aquifer system in much of central Florida. These characteristics facilitate the relatively rapid transmission of infiltrating water from rainfall to the water table and contribute to downward leakage of water to the Floridan aquifer system. The areally distributed nature of rainfall, as opposed to the site-specific nature of groundwater use, and the generally high transmissivity and low storativity properties of the semiconfined Floridan aquifer system contribute to the prevalence of water-level and flow patterns that mimic rainfall patterns. In general, the data-mining analyses demonstrate that the hydrologic system in central Florida is affected by groundwater use differently during wet periods, when little or no system storage is available (high water levels), compared to dry periods, when there is excess system storage (low water levels). Thus, by driving the overall behavior of the system, rainfall indirectly influences the degree to which groundwater use will effect persistent trends in water levels and flows, with groundwater-use impacts more prevalent during periods of low water levels and spring flows caused by low rainfall and less prevalent during periods of high water levels and spring flows caused by high rainfall. Differences in the magnitudes of rainfall and groundwater use during wet and dry periods also are important determinants of hydrologic response.
\nAn important implication of the data-mining analyses is that rainfall variability at subannual to multidecadal timescales must be considered in combination with groundwater use to provide robust system-response predictions that enhance sustainable resource management in an open karst aquifer system. The data-driven approach was limited, however, by the confounding effects of correlation between rainfall and groundwater use, the quality and completeness of the historical databases, and the spatial variations in groundwater use. The data-mining analyses indicate that available historical data when used alone do not contain sufficient information to definitively quantify the related individual effects of rainfall and groundwater use on hydrologic response. The knowledge gained from data-driven modeling and the results from physics-based modeling, when compared and used in combination, can yield a more comprehensive assessment and a more robust understanding of the hydrologic system than either of the approaches used separately.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20145032","issn":"2328-0328","collaboration":"Prepared in cooperation with the St. Johns River Water Management District, Southwest Florida Water Management District, and South Florida Water Management District","usgsCitation":"O’Reilly, A.M., Roehl, E.A., Conrads, P., Daamen, R.C., and Petkewich, M.D., 2014, Simulation of the effects of rainfall and groundwater use on historical lake water levels, groundwater levels, and spring flows in central Florida: U.S. Geological Survey Scientific Investigations Report 2014-5032, Report: xi, 153 p.; Appendix 1: ZIP; Appendix 2: XLSX; Appendix 3: PDF; Appendix 6: ZIP; Appendix 7: XLSX, https://doi.org/10.3133/sir20145032.","productDescription":"Report: xi, 153 p.; Appendix 1: ZIP; Appendix 2: XLSX; Appendix 3: PDF; Appendix 6: ZIP; Appendix 7: XLSX","numberOfPages":"169","onlineOnly":"Y","ipdsId":"IP-049051","costCenters":[{"id":285,"text":"Florida Water Science Center","active":false,"usgs":true}],"links":[{"id":288816,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20145032.jpg"},{"id":288811,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5032/appendix/sir2014-5032_appendix1-v2.5.zip"},{"id":288812,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5032/appendix/sir2014-5032_appendix2-gudv.xlsx"},{"id":288809,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2014/5032/"},{"id":288810,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2014/5032/pdf/sir2014-5032.pdf"},{"id":288813,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5032/appendix/sir2014-5032_appendix3_tableA3-1.pdf"},{"id":288814,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5032/appendix/sir2014-5032_appendix6-cfann-dss20120924.zip"},{"id":288815,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5032/appendix/sir2014-5032_appendix7-mdv.xlsx"}],"projection":"Universal Transverse Mercator projection","country":"United States","state":"Florida","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -82.0,28.0 ], [ -82.0,29.0 ], [ -81.0,29.0 ], [ -81.0,28.0 ], [ -82.0,28.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae782ce4b0abf75cf2ccb3","contributors":{"authors":[{"text":"O’Reilly, Andrew M. 0000-0003-3220-1248 aoreilly@usgs.gov","orcid":"https://orcid.org/0000-0003-3220-1248","contributorId":2184,"corporation":false,"usgs":true,"family":"O’Reilly","given":"Andrew","email":"aoreilly@usgs.gov","middleInitial":"M.","affiliations":[{"id":5051,"text":"FLWSC-Orlando","active":true,"usgs":true}],"preferred":true,"id":491298,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roehl, Edwin A. Jr.","contributorId":108083,"corporation":false,"usgs":false,"family":"Roehl","given":"Edwin","suffix":"Jr.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":491300,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Conrads, Paul 0000-0003-0408-4208 pconrads@usgs.gov","orcid":"https://orcid.org/0000-0003-0408-4208","contributorId":764,"corporation":false,"usgs":true,"family":"Conrads","given":"Paul","email":"pconrads@usgs.gov","affiliations":[{"id":559,"text":"South Carolina Water Science Center","active":true,"usgs":true},{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"preferred":false,"id":491296,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Daamen, Ruby C.","contributorId":105391,"corporation":false,"usgs":true,"family":"Daamen","given":"Ruby","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":491299,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Petkewich, Matthew D. 0000-0002-5749-6356 mdpetkew@usgs.gov","orcid":"https://orcid.org/0000-0002-5749-6356","contributorId":982,"corporation":false,"usgs":true,"family":"Petkewich","given":"Matthew","email":"mdpetkew@usgs.gov","middleInitial":"D.","affiliations":[{"id":559,"text":"South Carolina Water Science Center","active":true,"usgs":true},{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"preferred":true,"id":491297,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70049779,"text":"ds796 - 2014 - California Groundwater Units","interactions":[],"lastModifiedDate":"2026-05-20T21:31:53.452939","indexId":"ds796","displayToPublicDate":"2014-06-17T12:47:00","publicationYear":"2014","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":"796","title":"California Groundwater Units","docAbstract":"The California Groundwater Units dataset classifies and delineates areas within the State of California into one of three groundwater-based polygon units: (1) those areas previously defined as alluvial groundwater basins or subbasins, (2) highland areas that are adjacent to and topographically upgradient of groundwater basins, and (3) highland areas not associated with a groundwater basin, only a hydrogeologic province. In total, 938 Groundwater Units are represented. The Groundwater Units dataset relates existing groundwater basins with their newly delineated highland areas which can be used in subsequent hydrologic studies. The methods used to delineate groundwater-basin-associated highland areas are similar to those used to delineate a contributing area (such as for a lake or water body); the difference is that highland areas are constrained to the immediately surrounding upslope (upstream) area. Upslope basins have their own delineated highland. A geoprocessing tool was created to facilitate delineation of highland areas for groundwater basins and subbasins and is available for download.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ds796","usgsCitation":"Johnson, T., and Belitz, K., 2014, California Groundwater Units: U.S. Geological Survey Data Series 796, Report: iv, 34 p.; GIS; Metadata, https://doi.org/10.3133/ds796.","productDescription":"Report: iv, 34 p.; GIS; Metadata","numberOfPages":"42","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-037814","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":504585,"rank":6,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_100265.htm","linkFileType":{"id":5,"text":"html"}},{"id":288678,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/ds/796/"},{"id":288683,"rank":4,"type":{"id":23,"text":"Spatial Data"},"url":"https://pubs.usgs.gov/ds/796/downloads/ds796_GIS.zip"},{"id":288684,"rank":3,"type":{"id":16,"text":"Metadata"},"url":"https://pubs.usgs.gov/ds/796/downloads/ds796_metadata.txt"},{"id":288682,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/ds/796/pdf/ds796.pdf"},{"id":288685,"rank":5,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ds796.jpg"}],"country":"United States","state":"California","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.507642,32.425413 ], [ -124.507642,42.067151 ], [ -113.488240,42.067151 ], [ -113.488240,32.425413 ], [ -124.507642,32.425413 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae764ee4b0abf75cf2bf14","contributors":{"authors":[{"text":"Johnson, Tyler D. 0000-0002-7334-9188","orcid":"https://orcid.org/0000-0002-7334-9188","contributorId":64366,"corporation":false,"usgs":true,"family":"Johnson","given":"Tyler D.","affiliations":[],"preferred":false,"id":486109,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Belitz, Kenneth 0000-0003-4481-2345 kbelitz@usgs.gov","orcid":"https://orcid.org/0000-0003-4481-2345","contributorId":442,"corporation":false,"usgs":true,"family":"Belitz","given":"Kenneth","email":"kbelitz@usgs.gov","affiliations":[{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true}],"preferred":true,"id":486108,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70108082,"text":"ofr20141076 - 2014 - The hydrogeology of the Tully Valley, Onondaga County, New York: an overview of research, 1992-2012","interactions":[],"lastModifiedDate":"2014-06-16T15:25:50","indexId":"ofr20141076","displayToPublicDate":"2014-06-16T15:15:00","publicationYear":"2014","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":"2014-1076","title":"The hydrogeology of the Tully Valley, Onondaga County, New York: an overview of research, 1992-2012","docAbstract":"Onondaga Creek begins approximately 15 miles south of Syracuse, New York, and flows north through the Onondaga Indian Nation, then through Syracuse, and finally into Onondaga Lake in central New York. Tully Valley is in the upper part of the Onondaga Creek watershed between U.S. Route 20 and the Valley Heads end moraine near Tully, N.Y. Tully Valley has a history of several unusual hydrogeologic phenomena that affected past land use and the water quality of Onondaga Creek; the phenomena are still present and continue to affect the area today (2014). These phenomena include mud volcanoes or mudboils, landslides, and land-surface subsidence; all are considered to be naturally occurring but may also have been influenced by human activity. The U.S. Geological Survey (USGS), in cooperation with the U.S. Environmental Protection Agency and the Onondaga Lake Partnership, began a study of the Tully Valley mudboils beginning in October 1991 in hopes of understanding (1) what drives mudboil activity in order to remediate mudboil influence on the water quality of Onondaga Creek, and (2) land-surface subsidence issues that have caused a road bridge to collapse, a major pipeline to be rerouted, and threatened nearby homes. Two years into this study, the 1993 Tully Valley landslide occurred just over 1 mile northwest of the mudboils. This earth slump-mud flow was the largest landslide in New York in more than 70 years (Fickies, 1993); this event provided additional insight into the geology and hydrology of the valley. As the study of the Tully Valley mudboils progressed, other unusual hydrogeologic phenomena were found within the Tully Valley and provided the opportunity to perform short-term, small-scale studies, some of which became graduate student theses—Burgmeier (1998), Curran (1999), Morales-Muniz (2000), Baldauf (2003), Epp (2005), Hackett, (2007), Tamulonis (2010), and Sinclair (2013). The unusual geology and hydrology of the Tully Valley, having been investigated for more than two decades, provides the basis for this report.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20141076","issn":"2331-1258","collaboration":"Prepared in cooperation with the U.S. Environmental Protection Agency and the Onondaga Lake Partnership","usgsCitation":"Kappel, W.M., 2014, The hydrogeology of the Tully Valley, Onondaga County, New York: an overview of research, 1992-2012: U.S. Geological Survey Open-File Report 2014-1076, Report: 27 p.; Appendix 1: Video 1 and Video 2, mov and wmv files; Appendix 2 and 3: HTML document, https://doi.org/10.3133/ofr20141076.","productDescription":"Report: 27 p.; Appendix 1: Video 1 and Video 2, mov and wmv files; Appendix 2 and 3: HTML document","numberOfPages":"28","onlineOnly":"Y","additionalOnlineFiles":"Y","temporalStart":"1992-01-01","temporalEnd":"2012-12-31","ipdsId":"IP-052339","costCenters":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"links":[{"id":288665,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20141076.jpg"},{"id":288662,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2014/1076/videos/ofr2014-1076_video01_2011.mov"},{"id":288663,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2014/1076/videos/ofr2014-1076_video02_2013.mov"},{"id":288660,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2014/1076/"},{"id":288661,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2014/1076/pdf/ofr2014-1076.pdf"},{"id":288664,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/of/2014/1076/appendix.html"}],"scale":"24000","country":"United States","state":"New York","county":"Onondaga County","otherGeospatial":"Tully Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -76.166667,42.833333 ], [ -76.166667,42.875 ], [ -76.125,42.875 ], [ -76.125,42.833333 ], [ -76.166667,42.833333 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae786ce4b0abf75cf2d47c","contributors":{"authors":[{"text":"Kappel, William M. 0000-0002-2382-9757 wkappel@usgs.gov","orcid":"https://orcid.org/0000-0002-2382-9757","contributorId":1074,"corporation":false,"usgs":true,"family":"Kappel","given":"William","email":"wkappel@usgs.gov","middleInitial":"M.","affiliations":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"preferred":true,"id":493954,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70110811,"text":"sir20145012 - 2014 - Dissolved-solids sources, loads, yields, and concentrations in streams of the conterminous United States","interactions":[],"lastModifiedDate":"2016-06-29T13:40:28","indexId":"sir20145012","displayToPublicDate":"2014-06-16T09:00:00","publicationYear":"2014","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":"2014-5012","title":"Dissolved-solids sources, loads, yields, and concentrations in streams of the conterminous United States","docAbstract":"Recent studies have shown that excessive dissolved-solids concentrations in water can have adverse effects on the environment and on agricultural, domestic, municipal, and industrial water users. Such effects motivated the U.S. Geological Survey’s National Water Quality Assessment Program to develop a SPAtially-Referenced Regression on Watershed Attributes (SPARROW) model that has improved the understanding of sources, loads, yields, and concentrations of dissolved solids in streams of the conterminous United States.
\n\n
Using the SPARROW model, long-term mean annual dissolved-solids loads from 2,560 water-quality monitoring stations were statistically related to several spatial datasets that are surrogates for dissolved-solids sources and land-to-water delivery processes. Specifically, sources in the model included variables representing geologic materials, road deicers, urban lands, cultivated lands, and pasture lands. Transport of dissolved solids from these sources was modulated by land-to-water delivery variables that represent precipitation, streamflow, soil, vegetation, terrain, population, irrigation, and artificial drainage characteristics. Where appropriate, the load estimates, source variables, and transport variables were statistically adjusted to represent conditions for the base year 2000. The nonlinear least-squares estimated SPARROW model was used to predict long-term mean annual conditions for dissolved-solids sources, loads, yields, and concentrations in a digital hydrologic network representing nearly 66,000 stream reaches and their corresponding incremental catchments that drain the Nation.
\n\n
Nationwide, the predominant source of dissolved solids yielded from incremental catchments and delivered to local streams is geologic materials in 89 percent of the catchments, road deicers in 5 percent of the catchments, pasture lands in 3 percent of the catchments, urban lands in 2 percent of the catchments, and cultivated lands in 1 percent of the catchments. Whereas incremental catchments with dissolved solids that originated predominantly from geologic sources or from urban lands are found across much of the Nation, incremental catchments with dissolved solids yields that originated predominantly from road deicers are largely found in the Northeast, and incremental catchments with dissolved solids that originated predominantly from cultivated or pasture lands are largely found in the West. The total amount of dissolved solids delivered to the Nation’s streams is 271.9 million metric tons (Mt) annually, of which 194.2 million Mt (71.4%) come from geologic sources, 37.7 million Mt (13.9%) come from road deicers, 18.2 million Mt (6.7%) come from pasture lands, 13.9 million Mt (5.1%) come from urban lands, and 7.9 million Mt (2.9%) come from cultivated lands.
\n\n
Nationwide, the median incremental-catchment yield delivered to local streams is 26 metric tons per year per square kilometer [(Mt/yr)/km2]. Ten percent of the incremental catchments yield less than 4 (Mt/yr)/km2, and 10 percent yield more than 90 (Mt/yr)/km2. Incremental-catchment yields greater than 50 (Mt/yr)/km2 mostly occur along the northern part of the West Coast and in a crescent shaped band south of the Great Lakes. For example, the median incremental-catchment yield is 81 (Mt/yr)/km2 for the Great Lakes, 78 (Mt/yr)/km2 for the Ohio, and 74 (Mt/yr)/km2 for the Upper Mississippi water-resources regions. Incremental-catchment yields less than 10 (Mt/yr)/km2 mostly occur in a wide band across the arid lowland of the interior West that excludes areas along the coast and the extensive, higher mountain ranges. For example, the median incremental-catchment yield is 3 (Mt/yr)/km2 for the Lower Colorado, 5 (Mt/yr)/km2 for the Rio Grande, and 8 (Mt/yr)/km2 for the Great Basin water-resources regions.
\n\n
Predicted incremental loads were cascaded down through the reach network, with loads accumulating from reach to reach. For most stream reaches, the entire incremental load of dissolved solids delivered to the reach was transported to either the ocean or to one of the large streams flowing along the U.S. international boundary without losses occurring along the way. The exceptions to this include streams in the southwestern part of the country, such as the Colorado River, Rio Grande, and streams of internally drained drainages in the Great Basin, where dissolved-solids loads decreased through streamflow diversion for off-stream use, or by infiltration through the streambed.
\n\n
Long-term mean annual flow-weighted concentrations were derived from the predicted accumulated-load and stream-discharge data. Widespread low concentrations, generally less than 100 milligrams per liter (mg/L), occur in many reaches of the New England, South Atlantic-Gulf, and Pacific Northwest water-resources regions as a result of moderate dissolved-solids yields and high runoff rates. Widespread moderate concentrations, generally between 100 and 500 mg/L, occur in many reaches of the Great Lakes, Ohio, and Upper Mississippi River water-resources regions. Whereas dissolved-solids yields are generally high in these regions, runoff rates are also high, which helps moderate concentrations in these regions. Widespread higher concentrations, generally greater than 500 mg/L, occur across a belt of reaches that extends almost continuously from Canada to Mexico in the Midwest, cutting through the Souris-Red-Rainy, Missouri, Arkansas-White-Red, Texas-Gulf, and Rio Grande water-resources regions. Although dissolved-solids yields are moderate to low in these areas, low runoff rates result in the high concentrations for these areas.
\n\n
In 12.6 percent of the Nation’s stream reaches, predicted concentrations of dissolved solids exceed 500 mg/L, the U.S. Environmental Protection Agency’s secondary, nonenforceable drinking water standard. While this standard provides a metric for evaluating predicted concentrations in the context of drinking-water supplies, it should be noted that it only applies to drinking water actually served to customers by water utilities, and it does not apply to all stream reaches in the Nation nor does it apply during times when water is not being withdrawn for use. Exceedance of 500 mg/L is more pronounced in certain water-resources regions than others. For example, about half of the reaches in the Souris-Red-Rainy region have concentrations predicted to exceed 500 mg/L, and between 25 and 37 percent of the reaches in the Missouri, Arkansas-White-Red, Texas-Gulf, Rio Grande, and Lower Colorado regions are predicted to exceed 500 mg/L.
\n\n
Development of stream-load data for use in the SPARROW model also provided long-term temporal trend information in dissolved-solids concentrations at the monitoring stations for their period of record, which was constrained between 1980 and 2009. For the 2,560 monitoring stations used in this study, long-term trends in flow-adjusted dissolved-solids concentrations increased over time at 23 percent of the stations, decreased at 18 percent of the stations, and did not change over time at 59 percent of the stations. Long-term trends show a strong regional spatial pattern where from the western parts of the Great Plains to the West Coast, concentrations mostly either did not change or decreased over time, and from the eastern parts of the Great Plains to the East Coast, concentrations mostly either did not change or increased over time.
\n\n
Results from the trend analysis and from the SPARROW model indicate that, compared to monitoring stations with no trends or decreasing trends, stations with increasing trends are associated with a smaller percentage of the predicted dissolved-solids load originating from geologic sources, and a larger percentage originating from urban lands and road deicers. Conversely, compared to stations with increasing trends or no trends, stations with decreasing trends have a larger percentage of the predicted dissolved-solids load originating from geologic sources and a smaller percentage originating from urban lands and road deicers. Stations with decreasing trends also have larger percentages of predicted dissolved-solids load originating from cultivated lands and pasture lands, compared to stations with increasing trends or no trends.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20145012","collaboration":"National Water Quality Assessment Program","usgsCitation":"Anning, D.W., and Flynn, M., 2014, Dissolved-solids sources, loads, yields, and concentrations in streams of the conterminous United States: U.S. Geological Survey Scientific Investigations Report 2014-5012, Report: viii, 101 p.; Appendixes 1-4, https://doi.org/10.3133/sir20145012.","productDescription":"Report: viii, 101 p.; Appendixes 1-4","numberOfPages":"113","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-037458","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"links":[{"id":287816,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20145012.jpg"},{"id":287811,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2014/5012/pdf/sir2014-5012.pdf"},{"id":287813,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5012/downloads/sir20145012_app02.xlsx"},{"id":287812,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5012/downloads/sir20145012_app01.xlsx"},{"id":287814,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5012/downloads/sir20145012_app03.xlsx"},{"id":287815,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5012/downloads/sir20145012_app04.docx"},{"id":287810,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2014/5012/"}],"country":"United States","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -97.18505859374999, 25.97779895546436 ], [ -97.42675781249999, 25.878994400196202 ], [ -98.2177734375, 26.115985925333536 ], [ -99.0966796875, 26.47057302237511 ], [ -99.580078125, 27.625140335093324 ], [ -100.283203125, 28.265682390146477 ], [ -100.83251953125, 29.305561325527698 ], [ -101.27197265625, 29.592565403314087 ], [ -101.49169921875, 29.80251790576445 ], [ -102.67822265625, 29.76437737516313 ], [ -103.11767578124999, 29.036960648558267 ], [ -104.47998046875, 29.611670115197377 ], [ -104.7216796875, 29.973970240516614 ], [ -104.69970703125, 30.20211367909724 ], [ -104.9853515625, 30.675715404167743 ], [ -106.12792968749999, 31.44741029142872 ], [ -106.45751953125, 31.80289258670676 ], [ -108.21533203125, 31.784216884487385 ], [ -108.204345703125, 31.344254455668054 ], [ -110.98388671874999, 31.3348710339506 ], [ -114.82910156249999, 32.52828936482526 ], [ -114.7412109375, 32.731840896865684 ], [ -117.13623046874999, 32.54681317351514 ], [ -117.3779296875, 33.211116472416855 ], [ -118.23486328125, 33.779147331286474 ], [ -118.564453125, 34.043556504127444 ], [ -118.94897460937499, 34.052659421375964 ], [ -119.2236328125, 34.161818161230386 ], [ -119.66308593749999, 34.470335121217495 ], [ -120.44311523437499, 34.45221847282654 ], [ -120.640869140625, 34.56990638085636 ], [ -120.673828125, 35.137879119634185 ], [ -121.9482421875, 36.4566360115962 ], [ -121.83837890625, 36.721273880045004 ], [ -121.88232421875, 36.949891786813296 ], [ -122.05810546875, 36.96744946416931 ], [ -122.40966796874999, 37.23032838760387 ], [ -122.56347656249999, 37.71859032558816 ], [ -122.67333984374999, 37.90953361677018 ], [ -123.00292968749999, 37.996162679728116 ], [ -123.02490234375, 38.238180119798635 ], [ -123.74999999999999, 38.92522904714054 ], [ -123.85986328124999, 39.757879992021756 ], [ -124.365234375, 40.27952566881291 ], [ -124.4091796875, 40.463666324587685 ], [ -124.18945312500001, 41.07935114946899 ], [ -124.0576171875, 41.60722821271717 ], [ -124.29931640625, 42.00032514831621 ], [ -124.49707031249999, 42.827638636242284 ], [ -124.16748046874999, 43.83452678223684 ], [ -124.03564453125, 45.058001435398296 ], [ -124.03564453125, 46.30140615437332 ], [ -124.25537109375, 47.41322033016902 ], [ -124.62890625, 47.91634204016118 ], [ -124.69482421875, 48.4146186174932 ], [ -123.96972656249999, 48.188063481211415 ], [ -123.134765625, 48.17341248658084 ], [ -122.78320312499999, 48.246625590713826 ], [ -122.81616210937499, 48.42920055556841 ], [ -123.18969726562499, 48.50204750525715 ], [ -123.24462890625, 48.69096039092549 ], [ -122.728271484375, 48.77067246880509 ], [ -122.82714843749999, 49.001843917978526 ], [ -95.174560546875, 49.01625665778159 ], [ -95.152587890625, 49.38237278700955 ], [ -94.81201171875, 49.31796095602274 ], [ -94.669189453125, 48.777912755501845 ], [ -93.834228515625, 48.63290858589532 ], [ -93.8232421875, 48.516604348867475 ], [ -93.44970703125, 48.56752037390827 ], [ -93.33984375, 48.66194284607008 ], [ -92.59277343749999, 48.531157010976706 ], [ -92.08740234375, 48.37084770238363 ], [ -91.4501953125, 48.06339653776211 ], [ -91.07666015625, 48.19538740833338 ], [ -90.8349609375, 48.23930899024905 ], [ -90.791015625, 48.10743118848039 ], [ -89.62646484375, 48.019324184801185 ], [ -89.3463134765625, 47.98256841921402 ], [ -88.3795166015625, 48.31973404047173 ], [ -84.847412109375, 46.897739085507 ], [ -84.55078125, 46.464349400461124 ], [ -84.4134521484375, 46.49839225859763 ], [ -84.19921875, 46.53619267489863 ], [ -84.1058349609375, 46.51351558059737 ], [ -84.122314453125, 46.320378031062354 ], [ -84.00146484374999, 46.15700496290803 ], [ -83.95751953125, 46.06560846138691 ], [ -83.81469726562499, 46.11132565729796 ], [ -83.6334228515625, 46.11894150610708 ], [ -83.42468261718749, 46.0007775685566 ], [ -83.583984375, 45.82497145796607 ], [ -82.518310546875, 45.32897866218559 ], [ -82.12280273437499, 43.57243174740972 ], [ -82.40295410156249, 43.000629854450025 ], [ -82.474365234375, 42.79136972365016 ], [ -82.5732421875, 42.5611728553181 ], [ -82.8533935546875, 42.370720143531955 ], [ -83.07861328125, 42.32200108060303 ], [ -83.12255859375, 42.14304156290942 ], [ -83.14453125, 42.04521345501039 ], [ -83.07861328125, 41.86956082699455 ], [ -82.6776123046875, 41.68111756290652 ], [ -82.3974609375, 41.68111756290652 ], [ -81.243896484375, 42.21224516288584 ], [ -80.09033203125, 42.39506551565123 ], [ -78.9532470703125, 42.827638636242284 ], [ -78.91754150390625, 42.95039177450287 ], [ -79.06585693359375, 43.092960677116295 ], [ -79.06036376953125, 43.26120612479979 ], [ -79.19769287109375, 43.45291889355465 ], [ -78.6895751953125, 43.632099415557754 ], [ -76.7999267578125, 43.64005063334694 ], [ -76.4483642578125, 44.11125397357153 ], [ -75.7781982421875, 44.51609322284931 ], [ -75.30029296875, 44.84029065139799 ], [ -74.827880859375, 45.02695045318546 ], [ -71.510009765625, 45.02695045318546 ], [ -71.3232421875, 45.29034662473615 ], [ -70.653076171875, 45.42158812329091 ], [ -70.68603515625, 45.537136680398596 ], [ -70.301513671875, 45.920587344733654 ], [ -70.2685546875, 46.240651955001695 ], [ -70.059814453125, 46.40756396630067 ], [ -69.993896484375, 46.694667307773116 ], [ -69.246826171875, 47.46523622438362 ], [ -69.01611328125, 47.4355191531953 ], [ -69.0380859375, 47.26432008025478 ], [ -68.93920898437499, 47.19717795172789 ], [ -68.35693359375, 47.36115300722623 ], [ -67.763671875, 47.06263847995432 ], [ -67.78564453125, 45.706179285330855 ], [ -67.423095703125, 45.5679096098613 ], [ -67.423095703125, 45.22074260255366 ], [ -67.17041015625, 45.174292524076726 ], [ -66.961669921875, 44.85586880735725 ], [ -67.24731445312499, 44.63739123445585 ], [ -68.236083984375, 44.308126684886126 ], [ -68.258056640625, 44.20583500104184 ], [ -69.06005859375, 44.04811573082351 ], [ -69.80712890625, 43.73935207915473 ], [ -70.048828125, 43.78695837311561 ], [ -70.2081298828125, 43.73538317799622 ], [ -70.191650390625, 43.58039085560786 ], [ -70.587158203125, 43.25320494908846 ], [ -70.81787109374999, 42.89206418807337 ], [ -70.76568603515625, 42.70060440808085 ], [ -70.68603515625, 42.66426107379467 ], [ -70.63934326171875, 42.69051116998241 ], [ -70.59814453125, 42.65416193033991 ], [ -70.6585693359375, 42.589488572714245 ], [ -70.8782958984375, 42.54498667313236 ], [ -70.83984375, 42.508552415528634 ], [ -70.9771728515625, 42.44372793752476 ], [ -70.97442626953125, 42.391008609205045 ], [ -70.8343505859375, 42.26917949243506 ], [ -70.75469970703125, 42.24681856113825 ], [ -70.64208984375, 42.07783959017503 ], [ -70.5487060546875, 41.92680320648791 ], [ -70.53497314453125, 41.820455096140314 ], [ -70.42785644531249, 41.74672584176937 ], [ -70.21636962890625, 41.73852846935917 ], [ -70.0323486328125, 41.781552998900345 ], [ -70.0103759765625, 41.85319643776675 ], [ -70.0762939453125, 41.90432124806034 ], [ -70.09277343749999, 42.02889410108475 ], [ -70.16143798828125, 42.05948945192712 ], [ -70.1751708984375, 42.01869237684385 ], [ -70.24932861328125, 42.06356771883277 ], [ -70.22186279296875, 42.07987816698549 ], [ -70.13946533203124, 42.07580094787543 ], [ -70.02960205078125, 42.02889410108475 ], [ -69.96917724609375, 41.916585116228354 ], [ -69.93072509765625, 41.7856490686444 ], [ -69.93072509765625, 41.6770148220322 ], [ -69.971923828125, 41.61338889474735 ], [ -69.949951171875, 41.253032440653186 ], [ -70.11199951171875, 41.23238023874142 ], [ -70.279541015625, 41.304634388885916 ], [ -70.44158935546875, 41.347948493443546 ], [ -70.675048828125, 41.3500103516271 ], [ -70.7684326171875, 41.31494988250963 ], [ -70.7958984375, 41.29844430929419 ], [ -71.03759765625, 41.49623534616764 ], [ -71.10076904296875, 41.50034959128928 ], [ -71.180419921875, 41.46125371076149 ], [ -71.3616943359375, 41.45507852101139 ], [ -71.44683837890625, 41.43654942411456 ], [ -71.4935302734375, 41.36031866306708 ], [ -71.531982421875, 41.16004614168688 ], [ -71.97967529296874, 41.01928287604565 ], [ -72.86956787109375, 40.724364221722716 ], [ -73.33099365234375, 40.61812224225511 ], [ -73.75946044921875, 40.58267063809529 ], [ -73.92425537109375, 40.543026009954986 ], [ -73.9874267578125, 40.46993497635153 ], [ -73.96820068359375, 40.319325896602095 ], [ -74.07806396484375, 39.928694653732364 ], [ -74.1357421875, 39.631076770083666 ], [ -74.3994140625, 39.364032338047984 ], [ -74.6356201171875, 39.21948715423953 ], [ -74.8004150390625, 38.96795115401593 ], [ -74.96520996093749, 38.929502416386605 ], [ -75.07507324218749, 38.775499003812946 ], [ -75.0421142578125, 38.47939467327645 ], [ -75.16845703124999, 38.004819966413194 ], [ -75.574951171875, 37.65773212628274 ], [ -75.882568359375, 37.16907157713011 ], [ -75.9814453125, 36.88840804313823 ], [ -75.706787109375, 36.16448788632064 ], [ -75.443115234375, 35.7019167328534 ], [ -75.52001953125, 35.22767235493586 ], [ -76.00341796875, 35.10193405724606 ], [ -76.519775390625, 34.6241677899049 ], [ -76.783447265625, 34.66935854524543 ], [ -77.2119140625, 34.58799745550482 ], [ -77.596435546875, 34.37064492478658 ], [ -77.87109375, 34.043556504127444 ], [ -77.93701171875, 33.797408767572485 ], [ -78.167724609375, 33.87041555094183 ], [ -78.662109375, 33.8430453147447 ], [ -79.013671875, 33.568861182555565 ], [ -79.156494140625, 33.32134852669881 ], [ -79.1455078125, 33.201924189778936 ], [ -79.69482421875, 32.7872745269555 ], [ -80.43090820312499, 32.47269502206151 ], [ -80.44189453125, 32.32427558887655 ], [ -80.83740234375, 32.0732655510424 ], [ -81.265869140625, 31.42866311735861 ], [ -81.419677734375, 30.760718908944472 ], [ -81.34277343749999, 29.99300228455108 ], [ -80.936279296875, 29.1233732108192 ], [ -80.52978515625, 28.488005204159457 ], [ -80.606689453125, 28.372068829631633 ], [ -80.474853515625, 27.848790459862073 ], [ -80.068359375, 26.95145308349826 ], [ -80.079345703125, 26.2145910237943 ], [ -80.167236328125, 25.37380917154398 ], [ -80.79345703125, 24.87646991083154 ], [ -80.9033203125, 24.856534339310674 ], [ -81.177978515625, 25.21488107113259 ], [ -81.2548828125, 25.54244147012483 ], [ -81.551513671875, 25.878994400196202 ], [ -81.67236328125, 25.86910939099931 ], [ -81.89208984375, 26.441065564038418 ], [ -82.11181640625, 26.43122806450644 ], [ -82.298583984375, 26.833874515058554 ], [ -82.63916015625, 27.371767300523047 ], [ -82.869873046875, 27.89734922968426 ], [ -82.72705078125, 28.391400375817753 ], [ -82.7490234375, 29.046565622728846 ], [ -83.023681640625, 29.180941290001776 ], [ -83.8916015625, 30.0405664305846 ], [ -84.3310546875, 30.097613277217132 ], [ -84.320068359375, 29.907329376851553 ], [ -85.05615234375, 29.592565403314087 ], [ -85.36376953125, 29.66896252599253 ], [ -86.02294921875, 30.29701788337205 ], [ -87.03369140625, 30.372875188118016 ], [ -88.17626953125, 30.221101852485987 ], [ -89.27490234375, 30.240086360983426 ], [ -89.31884765624999, 29.76437737516313 ], [ -89.47265625, 29.554345125748267 ], [ -88.9013671875, 29.267232865200878 ], [ -89.27490234375, 28.8831596093235 ], [ -89.69238281249999, 29.209713225868185 ], [ -90.2197265625, 29.075375179558346 ], [ -91.01074218749999, 29.0945770775118 ], [ -91.4501953125, 29.34387539941801 ], [ -92.46093749999999, 29.53522956294847 ], [ -93.44970703125, 29.726222319395504 ], [ -94.52636718749999, 29.477861195816843 ], [ -95.2294921875, 29.05616970274342 ], [ -96.064453125, 28.5941685062326 ], [ -96.767578125, 28.16887518006332 ], [ -97.27294921875, 27.68352808378776 ], [ -97.3388671875, 26.980828590472107 ], [ -97.18505859374999, 25.97779895546436 ] ] ] } }, { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -141.15234374999997, 69.7181066990676 ], [ -142.03125, 70.0205873017406 ], [ -142.734375, 70.25945200030641 ], [ -143.96484375, 70.25945200030641 ], [ -144.84375, 70.19999407534661 ], [ -147.041015625, 70.40734767606811 ], [ -148.359375, 70.46620742226558 ], [ -149.4140625, 70.69995129442536 ], [ -150.99609375, 70.67088107015755 ], [ -151.69921875, 70.81581215931348 ], [ -152.75390624999997, 71.04552881933586 ], [ -154.16015625, 71.04552881933586 ], [ -154.86328125, 71.24435551310671 ], [ -156.26953125, 71.46912418989677 ], [ -157.32421875, 71.44117085172385 ], [ -158.02734375, 71.13098770917023 ], [ -159.43359375, 70.9883492241249 ], [ -161.279296875, 70.61261423801925 ], [ -162.421875, 70.4367988185464 ], [ -163.30078125, 70.0205873017406 ], [ -163.828125, 69.59589006237648 ], [ -164.70703125, 69.2249968541159 ], [ -166.55273437499997, 69.19379976461907 ], [ -166.81640625, 68.5924865825295 ], [ -166.55273437499997, 67.97463396204759 ], [ -165.58593749999997, 67.57571741708057 ], [ -164.53125, 67.2720426739952 ], [ -163.65234374999997, 67.03316279015066 ], [ -162.861328125, 66.51326044311188 ], [ -163.564453125, 66.30220547599842 ], [ -163.740234375, 66.65297740055279 ], [ -165.41015625, 66.687783861162 ], [ -167.255859375, 66.16051056018838 ], [ -168.837890625, 65.69447579373418 ], [ -168.662109375, 65.25670649344259 ], [ -166.640625, 64.69910544204765 ], [ -166.904296875, 64.05297838071347 ], [ -169.27734375, 63.58767529470318 ], [ -170.068359375, 63.860035895395306 ], [ -171.03515625, 63.93737246791484 ], [ -171.826171875, 63.97596090918338 ], [ -172.001953125, 63.194018438087845 ], [ -169.716796875, 62.71446210149774 ], [ -168.134765625, 62.95522304515911 ], [ -166.81640625, 63.23362741232569 ], [ -166.201171875, 63.27318217465046 ], [ -165.76171875, 62.67414334669093 ], [ -166.46484375, 61.897577621605016 ], [ -166.640625, 61.18562468142283 ], [ -167.255859375, 60.71619779357716 ], [ -168.75, 60.84491057364915 ], [ -170.771484375, 60.84491057364915 ], [ -173.056640625, 61.01572481397616 ], [ -174.19921875, 60.673178565817715 ], [ -172.177734375, 58.53959476664049 ], [ -172.177734375, 56.31653672211301 ], [ -172.880859375, 54.7246201949245 ], [ -176.1328125, 54.00776876193478 ], [ -181.05468749999997, 53.80065082633023 ], [ -182.900390625, 53.33087298301704 ], [ -186.15234374999997, 53.9560855309879 ], [ -188.08593749999997, 53.54030739150022 ], [ -188.08593749999997, 52.214338608258224 ], [ -185.625, 51.23440735163459 ], [ -181.31835937499997, 50.792047064406844 ], [ -178.2421875, 50.51342652633956 ], [ -176.572265625, 50.792047064406844 ], [ -172.08984375, 50.90303283111257 ], [ -169.27734375, 51.83577752045248 ], [ -165.58593749999997, 52.53627304145948 ], [ -158.55468749999997, 54.316523240258284 ], [ -155.390625, 55.07836723201515 ], [ -151.69921875, 57.136239319177434 ], [ -150.29296875, 58.859223547066584 ], [ -147.65625, 59.712097173322924 ], [ -145.634765625, 59.84481485969105 ], [ -142.55859375, 59.265880628258095 ], [ -140.9765625, 59.265880628258095 ], [ -139.482421875, 58.90464570302001 ], [ -138.25195312499997, 58.44773280389084 ], [ -136.93359375, 57.657157596582984 ], [ -135.966796875, 56.70450561416937 ], [ -135, 55.52863052257191 ], [ -133.505859375, 54.7246201949245 ], [ -132.626953125, 54.316523240258284 ], [ -131.396484375, 54.316523240258284 ], [ -130.341796875, 54.826007999094955 ], [ -130.078125, 55.677584411089505 ], [ -130.341796875, 56.17002298293205 ], [ -131.396484375, 56.41390137600676 ], [ -131.8359375, 56.897003921272606 ], [ -132.1875, 57.231502991478905 ], [ -133.2421875, 58.17070248348609 ], [ -133.76953125, 58.63121664342478 ], [ -134.38476562499997, 58.99531118795094 ], [ -134.736328125, 59.40036514079251 ], [ -135.615234375, 59.88893689676585 ], [ -136.0546875, 59.57885104663186 ], [ -136.31835937499997, 59.355596110016315 ], [ -137.373046875, 59.0405546167585 ], [ -137.8125, 59.22093407615045 ], [ -138.427734375, 59.712097173322924 ], [ -139.04296875, 60.10867046303597 ], [ -139.39453125, 60.45721779774397 ], [ -139.833984375, 60.37042901631508 ], [ -140.44921875, 60.50052541051131 ], [ -141.15234374999997, 60.50052541051131 ], [ -141.15234374999997, 69.7181066990676 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"538848cfe4b0318b93124a24","contributors":{"authors":[{"text":"Anning, David W. dwanning@usgs.gov","contributorId":432,"corporation":false,"usgs":true,"family":"Anning","given":"David","email":"dwanning@usgs.gov","middleInitial":"W.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":494155,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Flynn, Marilyn E. meflynn@usgs.gov","contributorId":1039,"corporation":false,"usgs":true,"family":"Flynn","given":"Marilyn E.","email":"meflynn@usgs.gov","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":494156,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70138504,"text":"70138504 - 2014 - Differentiating transpiration from evaporation in seasonal agricultural wetlands and the link to advective fluxes in the root zone","interactions":[],"lastModifiedDate":"2015-01-19T11:04:45","indexId":"70138504","displayToPublicDate":"2014-06-15T11:15:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Differentiating transpiration from evaporation in seasonal agricultural wetlands and the link to advective fluxes in the root zone","docAbstract":"The current state of science and engineering related to analyzing wetlands overlooks the importance of transpiration and risks data misinterpretation. In response, we developed hydrologic and mass budgets for agricultural wetlands using electrical conductivity (EC) as a natural conservative tracer. We developed simple differential equations that quantify evaporation and transpiration rates using flowrates and tracer concentrations atwetland inflows and outflows. We used two ideal reactormodel solutions, a continuous flowstirred tank reactor (CFSTR) and a plug flow reactor (PFR), to bracket real non-ideal systems. From those models, estimated transpiration ranged from 55% (CFSTR) to 74% (PFR) of total evapotranspiration (ET) rates, consistent with published values using standard methods and direct measurements. The PFR model more appropriately represents these nonideal agricultural wetlands in which check ponds are in series. Using a fluxmodel, we also developed an equation delineating the root zone depth at which diffusive dominated fluxes transition to advective dominated fluxes. This relationship is similar to the Peclet number that identifies the dominance of advective or diffusive fluxes in surface and groundwater transport. Using diffusion coefficients for inorganic mercury (Hg) and methylmercury (MeHg) we calculated that during high ET periods typical of summer, advective fluxes dominate root zone transport except in the top millimeters below the sediment–water interface. The transition depth has diel and seasonal trends, tracking those of ET. Neglecting this pathway has profound implications: misallocating loads along different hydrologic pathways; misinterpreting seasonal and diel water quality trends; confounding Fick's First Law calculations when determining diffusion fluxes using pore water concentration data; and misinterpreting biogeochemicalmechanisms affecting dissolved constituent cycling in the root zone. In addition,our understanding of internal root zone cycling of Hg and other dissolved constituents, benthic fluxes, and biological irrigation may be greatly affected.
","language":"English","publisher":"Elsevier Pub. Co.","publisherLocation":"Amsterdam","doi":"10.1016/j.scitotenv.2013.11.026","collaboration":"RWQCB","usgsCitation":"Bachand, P., Bachand, S., Fleck, J., Anderson, F.E., and Windham-Myers, L., 2014, Differentiating transpiration from evaporation in seasonal agricultural wetlands and the link to advective fluxes in the root zone: Science of the Total Environment, v. 484, p. 232-248, https://doi.org/10.1016/j.scitotenv.2013.11.026.","productDescription":"17 p.","startPage":"232","endPage":"248","numberOfPages":"17","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-030347","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":297376,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":297375,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.ncbi.nlm.nih.gov/pubmed/24296049"}],"volume":"484","publishingServiceCenter":{"id":1,"text":"Sacramento PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54dd2b78e4b08de9379b33a8","contributors":{"authors":[{"text":"Bachand, P.A.M.","contributorId":9857,"corporation":false,"usgs":true,"family":"Bachand","given":"P.A.M.","email":"","affiliations":[],"preferred":false,"id":538756,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bachand, S.","contributorId":138794,"corporation":false,"usgs":false,"family":"Bachand","given":"S.","email":"","affiliations":[{"id":12526,"text":"Bachand & Associates","active":true,"usgs":false}],"preferred":false,"id":538757,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fleck, Jacob A. 0000-0002-3217-3972 jafleck@usgs.gov","orcid":"https://orcid.org/0000-0002-3217-3972","contributorId":1498,"corporation":false,"usgs":true,"family":"Fleck","given":"Jacob A.","email":"jafleck@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":538755,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Anderson, Frank E. 0000-0002-1418-4678 fanders@usgs.gov","orcid":"https://orcid.org/0000-0002-1418-4678","contributorId":2605,"corporation":false,"usgs":true,"family":"Anderson","given":"Frank","email":"fanders@usgs.gov","middleInitial":"E.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":538754,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Windham-Myers, Lisamarie 0000-0003-0281-9581 lwindham-myers@usgs.gov","orcid":"https://orcid.org/0000-0003-0281-9581","contributorId":2449,"corporation":false,"usgs":true,"family":"Windham-Myers","given":"Lisamarie","email":"lwindham-myers@usgs.gov","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":538753,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70138506,"text":"70138506 - 2014 - Concurrent photolytic degradation of aqueous methylmercury and dissolved organic matter","interactions":[],"lastModifiedDate":"2015-01-19T10:59:03","indexId":"70138506","displayToPublicDate":"2014-06-15T11:00:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Concurrent photolytic degradation of aqueous methylmercury and dissolved organic matter","docAbstract":"Monomethyl mercury (MeHg) is a potent neurotoxin that threatens ecosystem viability and human health. In aquatic systems, the photolytic degradation of MeHg (photodemethylation) is an important component of the MeHg cycle. Dissolved organic matter (DOM) is also affected by exposure to solar radiation (light exposure) leading to changes in DOM composition that can affect its role in overall mercury (Hg) cycling. This study investigated changes in MeHg concentration, DOM concentration, and the optical signature of DOM caused by light exposure in a controlled field-based experiment using water samples collected from wetlands and rice fields. Filtered water from all sites showed a marked loss in MeHg concentration after light exposure. The rate of photodemethylation was 7.5 × 10-3 m2 mol-1 (s.d. 3.5 × 10-3) across all sites despite marked differences in DOM concentration and composition. Light exposure also caused changes in the optical signature of the DOM despite there being no change in DOM concentration, indicating specific structures within the DOM were affected by light exposure at different rates. MeHg concentrations were related to optical signatures of labile DOM whereas the percent loss of MeHg was related to optical signatures of less labile, humic DOM. Relationships between the loss of MeHg and specific areas of the DOM optical signature indicated that aromatic and quinoid structures within the DOM were the likely contributors to MeHg degradation, perhaps within the sphere of the Hg-DOM bond. Because MeHg photodegradation rates are relatively constant across freshwater habitats with natural Hg–DOM ratios, physical characteristics such as shading and hydrologic residence time largely determine the relative importance of photolytic processes on the MeHg budget in these mixed vegetated and open-water systems.
","language":"English","publisher":"Elsevier Pub. Co.","publisherLocation":"Amsterdam","doi":"10.1016/j.scitotenv.2013.03.107","usgsCitation":"Fleck, J., Gill, G.W., Bergamaschi, B., Kraus, T.E., Downing, B.D., and Alpers, C.N., 2014, Concurrent photolytic degradation of aqueous methylmercury and dissolved organic matter: Science of the Total Environment, v. 484, p. 263-275, https://doi.org/10.1016/j.scitotenv.2013.03.107.","productDescription":"13 p.","startPage":"263","endPage":"275","numberOfPages":"13","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-030306","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":297374,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":297373,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.sciencedirect.com/science/article/pii/S0048969713004129"}],"volume":"484","publishingServiceCenter":{"id":1,"text":"Sacramento PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54dd2b67e4b08de9379b3366","contributors":{"authors":[{"text":"Fleck, Jacob A. 0000-0002-3217-3972 jafleck@usgs.gov","orcid":"https://orcid.org/0000-0002-3217-3972","contributorId":1498,"corporation":false,"usgs":true,"family":"Fleck","given":"Jacob A.","email":"jafleck@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":538768,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gill, Gary W. gwgill@usgs.gov","contributorId":4692,"corporation":false,"usgs":true,"family":"Gill","given":"Gary","email":"gwgill@usgs.gov","middleInitial":"W.","affiliations":[],"preferred":true,"id":538767,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bergamaschi, Brian A. 0000-0002-9610-5581 bbergama@usgs.gov","orcid":"https://orcid.org/0000-0002-9610-5581","contributorId":1448,"corporation":false,"usgs":true,"family":"Bergamaschi","given":"Brian A.","email":"bbergama@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":538764,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kraus, Tamara E.C. 0000-0002-5187-8644 tkraus@usgs.gov","orcid":"https://orcid.org/0000-0002-5187-8644","contributorId":1452,"corporation":false,"usgs":true,"family":"Kraus","given":"Tamara","email":"tkraus@usgs.gov","middleInitial":"E.C.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":538769,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Downing, Bryan D. 0000-0002-2007-5304 bdowning@usgs.gov","orcid":"https://orcid.org/0000-0002-2007-5304","contributorId":1449,"corporation":false,"usgs":true,"family":"Downing","given":"Bryan","email":"bdowning@usgs.gov","middleInitial":"D.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":538765,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Alpers, Charles N. 0000-0001-6945-7365 cnalpers@usgs.gov","orcid":"https://orcid.org/0000-0001-6945-7365","contributorId":411,"corporation":false,"usgs":true,"family":"Alpers","given":"Charles","email":"cnalpers@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":538766,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70112339,"text":"sir20145088 - 2014 - Water withdrawals, use, and trends in Florida, 2010","interactions":[],"lastModifiedDate":"2014-06-13T11:17:41","indexId":"sir20145088","displayToPublicDate":"2014-06-13T11:06:00","publicationYear":"2014","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":"2014-5088","title":"Water withdrawals, use, and trends in Florida, 2010","docAbstract":"In 2010, the total amount of water withdrawn in Florida was estimated to be 14,988 million gallons per day (Mgal/d). Saline water accounted for 8,589 Mgal/d (57 percent) and freshwater accounted for 6,399 Mgal/d (43 percent). Groundwater accounted for 4,166 Mgal/d (65 percent) of freshwater withdrawals, and surface water accounted for the remaining 2,233 Mgal/d (35 percent). Surface water accounted for nearly all (99.9 percent) saline-water withdrawals. An additional 659 Mgal/d of reclaimed wastewater was used in Florida during 2010. Freshwater withdrawals were greatest in Palm Beach County (707 Mgal/d), and saline-water withdrawals were greatest in Hillsborough County (1,715 Mgal/d).
\nFresh groundwater provided drinking water (public supplied and self-supplied) for 17.33 million people (92 percent of Florida’s population), and fresh surface water provided drinking water for 1.47 million people (8 percent). The statewide public-supply gross per capita use for 2010 was 134 gallons per day, whereas the statewide public-supply domestic per capita use was 85 gallons per day. The majority of groundwater withdrawals (almost 62 percent) in 2010 were obtained from the Floridan aquifer system, which is present throughout most of the State. The majority of fresh surface-water withdrawals (56 percent) came from the southern Florida hydrologic unit subregion and is associated with Lake Okeechobee and the canals in the Everglades Agricultural Area of Glades, Hendry, and Palm Beach Counties, as well as the Caloosahatchee River and its tributaries in the agricultural areas of Collier, Glades, Hendry, and Lee Counties.
\nOverall, agricultural irrigation accounted for 40 percent of the total freshwater withdrawals (ground and surface), followed by public supply with 35 percent. Public supply accounted for 48 percent of groundwater withdrawals, followed by agricultural self-supplied (34 percent), commercial-industrial-mining self-supplied (7 percent), recreational-landscape irrigation and domestic self-supplied (5 percent each), and power generation (less than 1 percent). Agricultural self-supplied accounted for 51 percent of fresh surface-water withdrawals, followed by power generation (25 percent), public supply (11 percent), recreational-landscape irrigation (9 percent), and commercial-industrial-mining self-supplied (4 percent). Power generation accounted for nearly all (99.8 percent) saline-water withdrawals.
\nOf the 18.80 million people who resided in Florida during 2010, 41 percent (7.68 million people) resided in the South Florida Water Management District (SFWMD), 25 percent each resided in the Southwest Florida Water Management District (SWFWMD) and the St. Johns River Water Management District (SJRWMD) (4.73 and 4.70 million people, respectively), 7 percent (1.36 million people) resided in the Northwest Florida Water Management District (NWFWMD), and 2 percent (0.33 million people) resided in the Suwannee River Water Management District (SRWMD). The largest percentage of freshwater withdrawals was from the SFWMD (47 percent), followed by the SJRWMD (21 percent), SWFWMD (18 percent), NWFWMD (9 percent), and SRWMD (5 percent).
\nBetween 1950 and 2010, the population of Florida increased by 16.03 million (580 percent), and the total water withdrawals (fresh and saline) increased by 12,334 Mgal/d (465 percent). More recently, total freshwater withdrawals decreased by more than 1,792 Mgal/d (22 percent) between 2000 and 2010, while the population increased by 2.82 million (18 percent), and total freshwater withdrawals decreased by more than 474 Mgal/d (7 percent) between 2005 and 2010, while the population increased by 0.88 million (8 percent). The recent trend of decreases in freshwater withdrawals is a result of increased rainfall during this period, the development and use of alternative water sources, water conservation efforts, more conservative regulations and mandates, changes in economic conditions, and losses of irrigated lands. Fresh-water withdrawals for public supply, agricultural self-supplied use, and commercial-industrial-mining self-supplied use all decreased between 2000 and 2010 and between 2005 and 2010, whereas freshwater withdrawals for domestic self-supplied use, recreational-landscape irrigation use, and power generation use either remained the same or changed slightly during the decade.
\nThe use of highly mineralized groundwater (referred to as nonpotable water) as a source of drinking water has increased in Florida. Nonpotable water use for public supply has increased from nearly 2 Mgal/d in 1970 to about 165 Mgal/d in 2010. Nonpotable water is either blended or treated to meet drinking-water standards and is mostly used along the east and west coasts of central and southern Florida. The use of reclaimed wastewater increased from about 206 Mgal/d in 1986 to nearly 659 Mgal/d in 2010. More than three-quarters (79 percent) of reclaimed wastewater in 2010 was used to supplement potable-quality water withdrawals for urban irrigation, agricultural irrigation, and industrial use.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20145088","collaboration":"Prepared in cooperation with the Florida Department of Environmental Protection","usgsCitation":"Marella, R.L., 2014, Water withdrawals, use, and trends in Florida, 2010: U.S. Geological Survey Scientific Investigations Report 2014-5088, vii, 59 p., https://doi.org/10.3133/sir20145088.","productDescription":"vii, 59 p.","numberOfPages":"72","onlineOnly":"Y","ipdsId":"IP-048849","costCenters":[{"id":285,"text":"Florida Water Science Center","active":false,"usgs":true}],"links":[{"id":288583,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2014/5088/pdf/sir2014-5088.pdf"},{"id":288582,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2014/5088/"},{"id":288584,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20145088.jpg"}],"country":"United States","state":"Florida","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -88.0,24.02 ], [ -88.0,31.2 ], [ -79.78,31.2 ], [ -79.78,24.02 ], [ -88.0,24.02 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae78bee4b0abf75cf2df9c","contributors":{"authors":[{"text":"Marella, Richard L. 0000-0003-4861-9841 rmarella@usgs.gov","orcid":"https://orcid.org/0000-0003-4861-9841","contributorId":2443,"corporation":false,"usgs":true,"family":"Marella","given":"Richard","email":"rmarella@usgs.gov","middleInitial":"L.","affiliations":[{"id":27821,"text":"Caribbean-Florida Water Science Center","active":true,"usgs":true},{"id":5051,"text":"FLWSC-Orlando","active":true,"usgs":true}],"preferred":true,"id":494691,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70102894,"text":"sim3293 - 2014 - Flood inundation maps for the Wabash and Eel Rivers at Logansport, Indiana","interactions":[],"lastModifiedDate":"2014-06-11T10:59:23","indexId":"sim3293","displayToPublicDate":"2014-06-11T10:38:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":333,"text":"Scientific Investigations Map","code":"SIM","onlineIssn":"2329-132X","printIssn":"2329-1311","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"3293","title":"Flood inundation maps for the Wabash and Eel Rivers at Logansport, Indiana","docAbstract":"Digital flood-inundation maps for an 8.3-mile reach of the Wabash River and a 7.6-mile reach of the Eel River at Logansport, Indiana (Ind.), were created by the U.S. Geological Survey (USGS) in cooperation with the Indiana Office of Community and Rural Affairs. The inundation maps, which can be accessed through the USGS Flood Inundation Mapping Science Web site at http://water.usgs.gov/osw/flood_inundation/, depict estimates of the areal extent and depth of flooding corresponding to selected water levels (stages) at USGS streamgage Wabash River at Logansport, Ind. (sta. no. 03329000) and USGS streamgage Eel River near Logansport, Ind. (sta. no. 03328500). Current conditions for estimating near-real-time areas of inundation using USGS streamgage information may be obtained on the Internet at http://waterdata.usgs.gov/. In addition, information has been provided to the National Weather Service (NWS) for incorporation into their Advanced Hydrologic Prediction Service (AHPS) flood warning system http:/water.weather.gov/ahps/). The NWS forecasts flood hydrographs at many places that are often colocated with USGS streamgages. NWS-forecasted peak-stage information may be used in conjunction with the maps developed in this study to show predicted areas of flood inundation.
\nFor this study, flood profiles were computed for the stream reaches by means of a one-dimensional step-backwater model developed by the U.S. Army Corps of Engineers. The hydraulic model was calibrated by using the most current stage-discharge relations at USGS streamgages 03329000, Wabash River at Logansport, Ind., and 03328500, Eel River near Logansport, Ind. The calibrated hydraulic model was then used to determine five water-surface profiles for flood stage at 1-foot intervals referenced to the Wabash River streamgage datum, and four water-surface profiles for flood stages at 1-foot intervals referenced to the Eel River streamgage datum. The stages range from bankfull to approximately the highest stages that have occurred since 1967 when three flood control dams were built upstream of Logansport, Ind. The simulated water-surface profiles were then combined with a geographic information system (GIS) digital elevation model (DEM, derived from Light Detection and Ranging [lidar] data having a 0.37-foot vertical accuracy and 3.9-foot horizontal resolution) in order to delineate the area flooded at each stage.
\nThe availability of these maps, along with information available on the Internet regarding current stages from the USGS streamgages at Logansport, Ind., and forecasted stream stages from the NWS, provides emergency management personnel and residents with information that is critical for flood response activities such as evacuations and road closures, as well as for post flood recovery efforts.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sim3293","issn":"2329-132X","collaboration":"Prepared in cooperation with the Indiana Office of Community and Rural Affairs","usgsCitation":"Fowler, K.K., 2014, Flood inundation maps for the Wabash and Eel Rivers at Logansport, Indiana: U.S. Geological Survey Scientific Investigations Map 3293, Pamphlet: v, 12 p.; Map Sheet Low Resolution: 9 JPGs; Map Sheet High Resolution: 9 PDFs, 22.00 x 17.00 inches; Downloads Directory, https://doi.org/10.3133/sim3293.","productDescription":"Pamphlet: v, 12 p.; Map Sheet Low Resolution: 9 JPGs; Map Sheet High Resolution: 9 PDFs, 22.00 x 17.00 inches; Downloads Directory","numberOfPages":"22","ipdsId":"IP-041227","costCenters":[{"id":346,"text":"Indiana Water Science Center","active":true,"usgs":true}],"links":[{"id":288319,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sim3293.jpg"},{"id":288303,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sim/3293/"},{"id":288310,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293_mapsheets/sheet02_eel_631_sim3293.pdf"},{"id":288311,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293_mapsheets/sheet03_wab_584_sim3293.pdf"},{"id":288307,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/sim/3293/images/sim3293_mapsheets/"},{"id":288308,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293_mapsheets/"},{"id":288309,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293_mapsheets/sheet01_wab_583_sim3293.pdf"},{"id":288312,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293_mapsheets/sheet04_eel_632_sim3293.pdf"},{"id":288313,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293_mapsheets/sheet05_wab_585_sim3293.pdf"},{"id":288314,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293_mapsheets/sheet06_wab_586_sim3292.pdf"},{"id":288315,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293_mapsheets/sheet07_eel_633_sim3293.pdf"},{"id":288316,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293_mapsheets/sheet08_wab_587_sim3292.pdf"},{"id":288317,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293_mapsheets/sheet09_eel_634_sim3293.pdf"},{"id":288318,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/sim/3293/downloads"},{"id":288305,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sim/3293/pdf/sim3293.pdf"}],"projection":"Transverse Mercator projection","datum":"North American Datum of 1983","country":"United States","state":"Indiana","city":"Logansport","otherGeospatial":"Eel River;Wabash River","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -86.416667,40.733333 ], [ -86.416667,40.8 ], [ -86.266667,40.8 ], [ -86.266667,40.733333 ], [ -86.416667,40.733333 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53996c4ee4b0a59b26496933","contributors":{"authors":[{"text":"Fowler, Kathleen K. 0000-0002-0107-3848 kkfowler@usgs.gov","orcid":"https://orcid.org/0000-0002-0107-3848","contributorId":2439,"corporation":false,"usgs":true,"family":"Fowler","given":"Kathleen","email":"kkfowler@usgs.gov","middleInitial":"K.","affiliations":[{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true},{"id":27231,"text":"Indiana-Kentucky Water Science Center","active":true,"usgs":true},{"id":346,"text":"Indiana Water Science Center","active":true,"usgs":true}],"preferred":true,"id":493082,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70111238,"text":"sir20145106 - 2014 - Hydrogeologic framework, groundwater movement, and water budget of the Kitsap Peninsula, west-central Washington","interactions":[],"lastModifiedDate":"2014-06-11T08:34:35","indexId":"sir20145106","displayToPublicDate":"2014-06-11T08:13:00","publicationYear":"2014","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":"2014-5106","title":"Hydrogeologic framework, groundwater movement, and water budget of the Kitsap Peninsula, west-central Washington","docAbstract":"This report presents information used to characterize the groundwater-flow system on the Kitsap Peninsula, and includes descriptions of the geology and hydrogeologic framework, groundwater recharge and discharge, groundwater levels and flow directions, seasonal groundwater-level fluctuations, interactions between aquifers and the surface‑water system, and a water budget. The Kitsap Peninsula is in the Puget Sound lowland of west-central Washington, is bounded by Puget Sound on the east and by Hood Canal on the west, and covers an area of about 575 square miles. The peninsula encompasses all of Kitsap County, the part of Mason County north of Hood Canal, and part of Pierce County west of Puget Sound. The peninsula is surrounded by saltwater and the hydrologic setting is similar to that of an island. The study area is underlain by a thick sequence of unconsolidated glacial and interglacial deposits that overlie sedimentary and volcanic bedrock units that crop out in the central part of the study area. Geologic units were grouped into 12 hydrogeologic units consisting of aquifers, confining units, and an underlying bedrock unit. A surficial hydrogeologic unit map was developed and used with well information from 2,116 drillers’ logs to construct 6 hydrogeologic sections and unit extent and thickness maps.
\nUnconsolidated aquifers typically consist of moderately to well-sorted alluvial and glacial outwash deposits of sand, gravel, and cobbles, with minor lenses of silt and clay. These units often are discontinuous or isolated bodies and are of highly variable thickness. Unconfined conditions occur in areas where aquifer units are at land surface; however, much of the study area is mantled by glacial till, and confined aquifer conditions are common. Groundwater in the unconsolidated aquifers generally flows radially off the peninsula in the direction of Puget Sound and Hood Canal. These generalized flow patterns likely are complicated by the presence of low-permeability confining units that separate discontinuous bodies of aquifer material and act as local groundwater-flow barriers.
\nGroundwater-level fluctuations observed during the monitoring period (2011–12) in wells completed in unconsolidated hydrogeologic units indicated seasonal variations ranging from 1 to about 20 feet. The largest fluctuation of 33 feet occurred in a well that was completed in the bedrock unit. Streamgage discharge measurements made during 2012 indicate that groundwater discharge to creeks in the area ranged from about 0.41 to 33.3 cubic feet per second.
\nDuring 2012, which was an above-average year of precipitation, the groundwater system received an average of about 664,610 acre-feet of recharge from precipitation and 22,122 acre-feet of recharge from return flows. Most of this annual recharge (66 percent) discharged to streams, and only about 4 percent was withdrawn from wells. The remaining groundwater recharge (30 percent) left the groundwater system as discharge to Hood Canal and Puget Sound.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20145106","collaboration":"Prepared in cooperation with the Kitsap Public Utility District","usgsCitation":"Welch, W.B., Frans, L.M., and Olsen, T.D., 2014, Hydrogeologic framework, groundwater movement, and water budget of the Kitsap Peninsula, west-central Washington: U.S. Geological Survey Scientific Investigations Report 2014-5106, Report: vii, 44 p.; 2 Plates: 34.0 x 44.0 inches and 47.0 x 32.68 inches, https://doi.org/10.3133/sir20145106.","productDescription":"Report: vii, 44 p.; 2 Plates: 34.0 x 44.0 inches and 47.0 x 32.68 inches","numberOfPages":"56","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-055785","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":288260,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20145106.jpg"},{"id":288223,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2014/5106/"},{"id":288257,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2014/5106/pdf/sir20145106.pdf"},{"id":288258,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sir/2014/5106/pdf/sir20145106_plate01.pdf"},{"id":288259,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sir/2014/5106/pdf/sir20145106_plate02.pdf"}],"projection":"State Plane Washington North FIPS 4601 Feet","datum":"North American Datum of 1983","country":"United States","state":"Washington","otherGeospatial":"Kitsap Peninsula","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.17018,47.233146 ], [ -123.17018,47.99093 ], [ -122.347281,47.99093 ], [ -122.347281,47.233146 ], [ -123.17018,47.233146 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53996c4fe4b0a59b26496937","contributors":{"authors":[{"text":"Welch, Wendy B. wwelch@usgs.gov","contributorId":1645,"corporation":false,"usgs":true,"family":"Welch","given":"Wendy","email":"wwelch@usgs.gov","middleInitial":"B.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":false,"id":494302,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Frans, Lonna M. 0000-0002-3217-1862 lmfrans@usgs.gov","orcid":"https://orcid.org/0000-0002-3217-1862","contributorId":1493,"corporation":false,"usgs":true,"family":"Frans","given":"Lonna","email":"lmfrans@usgs.gov","middleInitial":"M.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":494300,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olsen, Theresa D. 0000-0003-4099-4057 tdolsen@usgs.gov","orcid":"https://orcid.org/0000-0003-4099-4057","contributorId":1644,"corporation":false,"usgs":true,"family":"Olsen","given":"Theresa","email":"tdolsen@usgs.gov","middleInitial":"D.","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":494301,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70133710,"text":"70133710 - 2014 - Karst geomorphology and hydrology of the Shenandoah Valley near Harrisonburg, Virginia","interactions":[],"lastModifiedDate":"2017-06-05T15:11:16","indexId":"70133710","displayToPublicDate":"2014-06-11T00:00:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1724,"text":"GSA Field Guides","active":true,"publicationSubtype":{"id":10}},"title":"Karst geomorphology and hydrology of the Shenandoah Valley near Harrisonburg, Virginia","docAbstract":"The karst of the central Shenandoah Valley has characteristics of both shallow and deep phreatic formation. This field guide focuses on the region around Harrisonburg, Virginia, where a number of these karst features and their associated geologic context can be examined. Ancient, widespread alluvial deposits cover much of the carbonate bedrock on the western side of the valley, where shallow karstification has resulted in classical fluviokarst development. However, in upland exposures of carbonate rock, isolated caves exist atop hills not affected by surface processes other than exposure during denudation. The upland caves contain phreatic deposits of calcite and fine-grained sediments. They lack any evidence of having been invaded by surface streams. Recent geologic mapping and LIDAR (light detection and ranging) elevation data have enabled interpretive association between bedrock structure, igneous intrusions, silicification and brecciation of host carbonate bedrock, and the location of several caves and karst springs. Geochemistry, water quality, and water temperature data support the broad categorization of springs into those affected primarily by shallow near-surface recharge, and those sourced deeper in the karst aquifer. The deep-seated karst formation occurred in the distant past where subvertical fracture and fault zones intersect thrust faults and/or cross-strike faults, enabling upwelling of deep-circulating meteoric groundwater. Most caves formed in such settings have been overprinted by later circulation of shallow groundwater, thus removing evidence of the history of earliest inception; however, several caves do preserve evidence of an earlier formation.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/2014.0035(06)","usgsCitation":"Doctor, D.H., Orndorff, W., Maynard, J., Heller, M., and Casile, G.C., 2014, Karst geomorphology and hydrology of the Shenandoah Valley near Harrisonburg, Virginia: GSA Field Guides, v. 35, p. 161-213, https://doi.org/10.1130/2014.0035(06).","productDescription":"53 p.","startPage":"161","endPage":"213","ipdsId":"IP-053426","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":342121,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Virginia","otherGeospatial":"Shenandoah Valley","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-78.7513,38.2082],[-78.752,38.1964],[-78.7698,38.1693],[-78.7866,38.1245],[-78.7769,38.1045],[-78.7806,38.0837],[-78.79,38.0815],[-78.7977,38.068],[-78.8211,38.0599],[-78.8576,38.0311],[-78.8752,38.0294],[-78.8817,38.0222],[-78.8859,38.0004],[-78.903,37.9892],[-78.906,37.981],[-78.9054,37.977],[-78.8931,37.9774],[-78.901,37.9493],[-78.9483,37.9382],[-79.0047,37.8863],[-79.0454,37.8955],[-79.0512,37.9132],[-79.0745,37.9165],[-79.099,37.9052],[-79.1574,37.8923],[-79.1424,37.8623],[-79.1576,37.8438],[-79.1572,37.8261],[-79.1718,37.8039],[-79.2004,37.7908],[-79.2132,37.7963],[-79.23,37.814],[-79.2452,37.8086],[-79.2563,37.7973],[-79.2709,37.7964],[-79.2721,37.7788],[-79.2972,37.7516],[-79.3042,37.7294],[-79.3182,37.7172],[-79.3206,37.7004],[-79.3404,37.6796],[-79.3393,37.6637],[-79.3923,37.633],[-79.4196,37.6262],[-79.4324,37.6153],[-79.4358,37.6208],[-79.4422,37.6189],[-79.4544,37.6094],[-79.4457,37.5822],[-79.4347,37.5786],[-79.4376,37.5686],[-79.5003,37.5365],[-79.5787,37.5822],[-79.5706,37.599],[-79.6829,37.6655],[-79.6678,37.6968],[-79.6754,37.7036],[-79.6842,37.7398],[-79.6448,37.8133],[-79.6332,37.8197],[-79.6081,37.8637],[-79.6267,37.8742],[-79.646,37.8736],[-79.6868,37.8377],[-79.7271,37.873],[-79.7511,37.8861],[-79.8106,37.8828],[-79.8894,37.8957],[-79.9364,37.9568],[-80.0023,37.9606],[-80.0274,37.9451],[-80.0566,37.9545],[-79.9992,37.9973],[-79.9752,38.0312],[-79.9505,38.0822],[-79.9272,38.1064],[-79.9385,38.1154],[-79.9411,38.1326],[-79.931,38.1372],[-79.9173,38.1563],[-79.9178,38.1839],[-79.8985,38.193],[-79.8455,38.2399],[-79.7905,38.2663],[-79.7894,38.2813],[-79.8082,38.3039],[-79.8065,38.3111],[-79.7738,38.3366],[-79.7613,38.3545],[-79.7298,38.3594],[-79.7274,38.3858],[-79.6914,38.4319],[-79.6877,38.4542],[-79.6968,38.4704],[-79.6947,38.4921],[-79.681,38.5085],[-79.6633,38.5145],[-79.6704,38.5303],[-79.6685,38.5529],[-79.646,38.5919],[-79.5387,38.5539],[-79.4941,38.4952],[-79.4746,38.4574],[-79.3177,38.4143],[-79.2792,38.4222],[-79.2789,38.4333],[-79.2429,38.4558],[-79.2386,38.4685],[-79.2089,38.4947],[-79.2027,38.526],[-79.1627,38.5831],[-79.1534,38.6134],[-79.1277,38.6531],[-79.1197,38.6586],[-79.1051,38.6545],[-79.0934,38.6588],[-79.0854,38.682],[-79.0905,38.7015],[-79.0874,38.7136],[-79.0798,38.7341],[-79.0543,38.7691],[-79.0529,38.7889],[-79.028,38.792],[-79.0227,38.8127],[-79.0051,38.8267],[-78.9947,38.8511],[-78.866,38.7631],[-78.8042,38.8639],[-78.7813,38.8923],[-78.7577,38.9058],[-78.7415,38.9242],[-78.7225,38.9323],[-78.7149,38.9292],[-78.719,38.9052],[-78.7143,38.9048],[-78.6724,38.9306],[-78.6487,38.9634],[-78.6246,38.9836],[-78.6007,38.966],[-78.5523,39.0189],[-78.5716,39.0333],[-78.4932,39.1027],[-78.4488,39.1229],[-78.4305,39.1485],[-78.403,39.1687],[-78.423,39.1825],[-78.4352,39.2003],[-78.4044,39.2367],[-78.4028,39.2461],[-78.4163,39.2553],[-78.4167,39.2612],[-78.3584,39.3208],[-78.3392,39.35],[-78.3651,39.3601],[-78.3468,39.3836],[-78.3599,39.4087],[-78.3505,39.4233],[-78.3478,39.4646],[-78.2299,39.3929],[-78.2151,39.4126],[-78.2079,39.4402],[-78.1987,39.45],[-78.1743,39.519],[-78.1397,39.592],[-78.1247,39.5945],[-78.0915,39.5844],[-78.0894,39.5976],[-78.0588,39.6012],[-78.0267,39.6241],[-78.0138,39.6077],[-78,39.6005],[-77.9535,39.6084],[-77.951,39.5908],[-77.9457,39.5871],[-77.9359,39.5965],[-77.935,39.6098],[-77.9431,39.6175],[-77.941,39.6211],[-77.9306,39.6185],[-77.9225,39.6071],[-77.9017,39.6023],[-77.8814,39.6033],[-77.8864,39.6161],[-77.8831,39.6179],[-77.834,39.6038],[-77.8299,39.5879],[-77.8346,39.5731],[-77.8443,39.5664],[-77.882,39.5625],[-77.8841,39.5532],[-77.8648,39.5384],[-77.8628,39.5168],[-77.845,39.5194],[-77.838,39.5313],[-77.8251,39.5289],[-77.8294,39.517],[-77.8443,39.5067],[-77.8413,39.4986],[-77.8025,39.4903],[-77.7795,39.5006],[-77.7651,39.4966],[-77.7977,39.4802],[-77.778,39.4634],[-77.797,39.4615],[-77.7847,39.4449],[-77.801,39.4391],[-77.7923,39.4331],[-77.756,39.4277],[-77.7503,39.4219],[-77.7354,39.3895],[-77.7503,39.3825],[-77.7445,39.3606],[-77.7578,39.3424],[-77.7483,39.3334],[-77.7197,39.3253],[-77.734,39.315],[-77.7694,39.2576],[-77.771,39.2418],[-77.7888,39.2194],[-77.8239,39.1371],[-77.8523,39.1155],[-77.8619,39.0853],[-77.8792,39.0782],[-77.8993,39.054],[-77.9415,39.0224],[-77.9882,38.9994],[-78.0379,38.9415],[-78.0617,38.9336],[-78.074,38.9115],[-78.0578,38.8928],[-78.0596,38.8887],[-78.1083,38.8793],[-78.1141,38.8871],[-78.1317,38.8633],[-78.1454,38.8575],[-78.1688,38.836],[-78.1726,38.8233],[-78.1815,38.8176],[-78.194,38.7828],[-78.2587,38.7581],[-78.2775,38.7628],[-78.321,38.7387],[-78.3316,38.7053],[-78.3152,38.697],[-78.3148,38.6847],[-78.325,38.6749],[-78.3142,38.6503],[-78.3251,38.6327],[-78.3423,38.6261],[-78.3817,38.5911],[-78.3871,38.5843],[-78.3809,38.5675],[-78.3857,38.5607],[-78.4046,38.5555],[-78.4202,38.537],[-78.4397,38.53],[-78.4414,38.4964],[-78.4619,38.4549],[-78.4762,38.446],[-78.4757,38.4346],[-78.5236,38.372],[-78.5508,38.3532],[-78.5557,38.3387],[-78.5899,38.324],[-78.6048,38.3087],[-78.6236,38.3039],[-78.6348,38.294],[-78.6501,38.2932],[-78.6639,38.2652],[-78.6546,38.2597],[-78.6658,38.2507],[-78.6798,38.2553],[-78.7128,38.2451],[-78.7513,38.2082]]],[[[-78.9218,38.0318],[-78.9296,38.0489],[-78.9482,38.0533],[-78.9423,38.0626],[-78.9518,38.0648],[-78.9505,38.0689],[-78.9292,38.0912],[-78.9033,38.0981],[-78.8761,38.0915],[-78.8645,38.0961],[-78.8646,38.081],[-78.8546,38.075],[-78.8651,38.0617],[-78.8648,38.0489],[-78.8829,38.0535],[-78.9025,38.0503],[-78.9009,38.0417],[-78.907,38.0426],[-78.9218,38.0318]]],[[[-79.0496,38.187],[-79.0346,38.1972],[-79.0117,38.1833],[-79.0217,38.1814],[-79.0232,38.1765],[-79.0127,38.1665],[-79.0263,38.1343],[-79.0479,38.1207],[-79.0716,38.1324],[-79.0853,38.1292],[-79.1092,38.1399],[-79.1122,38.1576],[-79.0953,38.1877],[-79.0496,38.187]]],[[[-78.1881,39.1399],[-78.1976,39.1423],[-78.1998,39.1532],[-78.1893,39.1744],[-78.2011,39.1795],[-78.1876,39.2047],[-78.1604,39.1981],[-78.1375,39.1842],[-78.1525,39.1722],[-78.1787,39.1353],[-78.1881,39.1399]]],[[[-79.3427,37.7618],[-79.3286,37.7602],[-79.3328,37.7383],[-79.3393,37.7317],[-79.3335,37.7298],[-79.3409,37.7291],[-79.3699,37.6962],[-79.3826,37.7062],[-79.3691,37.7271],[-79.3776,37.7269],[-79.3749,37.7394],[-79.3815,37.7406],[-79.3647,37.7443],[-79.3427,37.7618]]],[[[-79.448,37.7685],[-79.4532,37.7658],[-79.4607,37.7749],[-79.4549,37.7821],[-79.4619,37.788],[-79.4543,37.7957],[-79.4415,37.8012],[-79.4147,37.7912],[-79.448,37.7685]]],[[[-78.8462,38.461],[-78.8486,38.4533],[-78.8341,38.4552],[-78.8328,38.4438],[-78.8235,38.4397],[-78.8287,38.4203],[-78.8506,38.4133],[-78.8824,38.4119],[-78.8892,38.3932],[-78.9142,38.3901],[-78.9177,38.396],[-78.9042,38.4145],[-78.9084,38.4346],[-78.9168,38.437],[-78.9009,38.4587],[-78.8913,38.4571],[-78.8764,38.486],[-78.8701,38.4892],[-78.8703,38.4807],[-78.8567,38.475],[-78.8462,38.461]]]]},\"properties\":{\"name\":\"Augusta\",\"state\":\"VA\"}}]}","volume":"35","noUsgsAuthors":false,"publicationDate":"2014-04-01","publicationStatus":"PW","scienceBaseUri":"59366dace4b0f6c2d0d7d640","contributors":{"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":525413,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Orndorff, Wil","contributorId":127487,"corporation":false,"usgs":false,"family":"Orndorff","given":"Wil","affiliations":[{"id":6970,"text":"Virginia Department of Conservation and Recreation, Natural Heritage Program","active":true,"usgs":false}],"preferred":false,"id":525414,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Maynard, Joel","contributorId":127488,"corporation":false,"usgs":false,"family":"Maynard","given":"Joel","email":"","affiliations":[{"id":6971,"text":"Virginia Department of Environmental Quality, Groundwater Characterization Program","active":true,"usgs":false}],"preferred":false,"id":525415,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Heller, Matthew J.","contributorId":81588,"corporation":false,"usgs":true,"family":"Heller","given":"Matthew J.","affiliations":[],"preferred":false,"id":525416,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Casile, Gerolamo C. jcasile@usgs.gov","contributorId":4007,"corporation":false,"usgs":true,"family":"Casile","given":"Gerolamo","email":"jcasile@usgs.gov","middleInitial":"C.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":525417,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70106988,"text":"sir20145098 - 2014 - Completion summary for boreholes USGS 140 and USGS 141 near the Advanced Test Reactor Complex, Idaho National Laboratory, Idaho","interactions":[],"lastModifiedDate":"2014-06-10T15:30:36","indexId":"sir20145098","displayToPublicDate":"2014-06-10T15:16:00","publicationYear":"2014","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":"2014-5098","title":"Completion summary for boreholes USGS 140 and USGS 141 near the Advanced Test Reactor Complex, Idaho National Laboratory, Idaho","docAbstract":"In 2013, the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, drilled and constructed boreholes USGS 140 and USGS 141 for stratigraphic framework analyses and long-term groundwater monitoring of the eastern Snake River Plain aquifer at the Idaho National Laboratory in southeast Idaho. Borehole USGS 140 initially was cored to collect continuous geologic data, and then re-drilled to complete construction as a monitor well. Borehole USGS 141 was drilled and constructed as a monitor well without coring. Boreholes USGS 140 and USGS 141 are separated by about 375 feet (ft) and have similar geologic layers and hydrologic characteristics based on geophysical and aquifer test data collected. The final construction for boreholes USGS 140 and USGS 141 required 6-inch (in.) diameter carbon-steel well casing and 5-in. diameter stainless-steel well screen; the screened monitoring interval was completed about 50 ft into the eastern Snake River Plain aquifer, between 496 and 546 ft below land surface (BLS) at both sites. Following construction and data collection, dedicated pumps and water-level access lines were placed to allow for aquifer testing, for collecting periodic water samples, and for measuring water levels.
\nBorehole USGS 140 was cored continuously, starting from land surface to a depth of 543 ft BLS. Excluding surface sediment, recovery of basalt and sediment core at borehole USGS 140 was about 98 and 65 percent, respectively. Based on visual inspection of core and geophysical data, about 32 basalt flows and 4 sediment layers were collected from borehole USGS 140 between 34 and 543 ft BLS. Basalt texture for borehole USGS 140 generally was described as aphanitic, phaneritic, and porphyritic; rubble zones and flow mold structure also were described in recovered core material. Sediment layers, starting near 163 ft BLS, generally were composed of fine-grained sand and silt with a lesser amount of clay; however, between 223 and 228 ft BLS, silt with gravel was described. Basalt flows generally ranged in thickness from 3 to 76 ft (average of 14 ft) and varied from highly fractured to dense with high to low vesiculation.
\nGeophysical and borehole video logs were collected during certain stages of the drilling and construction process at boreholes USGS 140 and USGS 141. Geophysical logs were examined synergistically with the core material for borehole USGS 140; additionally, geophysical data were examined to confirm geologic and hydrologic similarities between boreholes USGS 140 and USGS 141 because core was not collected for borehole USGS 141. Geophysical data suggest the occurrence of fractured and (or) vesiculated basalt, dense basalt, and sediment layering in both the saturated and unsaturated zones in borehole USGS 141. Omni-directional density measurements were used to assess the completeness of the grout annular seal behind 6-in. diameter well casing. Furthermore, gyroscopic deviation measurements were used to measure horizontal and vertical displacement at all depths in boreholes USGS 140 and USGS 141.
\nSingle-well aquifer tests were done following construction at wells USGS 140 and USGS 141 and data examined after the tests were used to provide estimates of specific-capacity, transmissivity, and hydraulic conductivity. The specific capacity, transmissivity, and hydraulic conductivity for well USGS 140 were estimated at 2,370 gallons per minute per foot [(gal/min)/ft)], 4.06 × 105 feet squared per day (ft2/d), and 740 feet per day (ft/d), respectively. The specific capacity, transmissivity, and hydraulic conductivity for well USGS 141 were estimated at 470 (gal/min)/ft, 5.95 × 104 ft2/d, and 110 ft/d, respectively. Measured flow rates remained relatively constant in well USGS 140 with averages of 23.9 and 23.7 gal/min during the first and second aquifer tests, respectively, and in well USGS 141 with an average of 23.4 gal/min.
\nWater samples were analyzed for cations, anions, metals, nutrients, volatile organic compounds, stable isotopes, and radionuclides. Water samples from both wells indicated that concentrations of tritium, sulfate, and chromium were affected by wastewater disposal practices at the Advanced Test Reactor Complex. Most constituents in water from wells USGS 140 and USGS 141 had concentrations similar to concentrations in well USGS 136, which is upgradient from wells USGS 140 and USGS 141.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20145098","collaboration":"DOE/ID-22229. Prepared in cooperation with the U.S. Department of Energy","usgsCitation":"Twining, B.V., Bartholomay, R.C., and Hodges, M., 2014, Completion summary for boreholes USGS 140 and USGS 141 near the Advanced Test Reactor Complex, Idaho National Laboratory, Idaho: U.S. Geological Survey Scientific Investigations Report 2014-5098, Report: vii, 39 p.; Appendixes A-C, https://doi.org/10.3133/sir20145098.","productDescription":"Report: vii, 39 p.; Appendixes A-C","numberOfPages":"52","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-051163","costCenters":[{"id":343,"text":"Idaho Water Science Center","active":true,"usgs":true}],"links":[{"id":288220,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20145098.jpg"},{"id":288216,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2014/5098/pdf/sir20145098.pdf"},{"id":288217,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5098/pdf/sir20145098_AppendixA.pdf"},{"id":288218,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5098/pdf/sir20145098_AppendixB.pdf"},{"id":288219,"type":{"id":3,"text":"Appendix"},"url":"https://pubs.usgs.gov/sir/2014/5098/pdf/sir20145098_AppendixC.pdf"},{"id":288215,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2014/5098/"}],"projection":"Universal Transverse Mercator projection, Zone 12","datum":"North American Datum of 1927","country":"United States","state":"Idaho","otherGeospatial":"Snake River Plain","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -113.4019,43.2995 ], [ -113.4019,44.0971 ], [ -112.347,44.0971 ], [ -112.347,43.2995 ], [ -113.4019,43.2995 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53981ad0e4b09e5ae91f9d96","contributors":{"authors":[{"text":"Twining, Brian V. 0000-0003-1321-4721 btwining@usgs.gov","orcid":"https://orcid.org/0000-0003-1321-4721","contributorId":2387,"corporation":false,"usgs":true,"family":"Twining","given":"Brian","email":"btwining@usgs.gov","middleInitial":"V.","affiliations":[{"id":343,"text":"Idaho Water Science Center","active":true,"usgs":true}],"preferred":true,"id":493830,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bartholomay, Roy C. 0000-0002-4809-9287 rcbarth@usgs.gov","orcid":"https://orcid.org/0000-0002-4809-9287","contributorId":1131,"corporation":false,"usgs":true,"family":"Bartholomay","given":"Roy","email":"rcbarth@usgs.gov","middleInitial":"C.","affiliations":[{"id":343,"text":"Idaho Water Science Center","active":true,"usgs":true}],"preferred":true,"id":493829,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hodges, Mary K.V.","contributorId":66848,"corporation":false,"usgs":true,"family":"Hodges","given":"Mary K.V.","affiliations":[],"preferred":false,"id":493831,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70111909,"text":"70111909 - 2014 - Pluvial lakes in the Great Basin of the western United States: a view from the outcrop","interactions":[],"lastModifiedDate":"2014-06-10T10:01:04","indexId":"70111909","displayToPublicDate":"2014-06-10T09:53:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3219,"text":"Quaternary Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"Pluvial lakes in the Great Basin of the western United States: a view from the outcrop","docAbstract":"Paleo-lakes in the western United States provide geomorphic and hydrologic records of climate and drainage-basin change at multiple time scales extending back to the Miocene. Recent reviews and studies of paleo-lake records have focused on interpretations of proxies in lake sediment cores from the northern and central parts of the Great Basin. In this review, emphasis is placed on equally important studies of lake history during the past ∼30 years that were derived from outcrop exposures and geomorphology, in some cases combined with cores. Outcrop and core records have different strengths and weaknesses that must be recognized and exploited in the interpretation of paleohydrology and paleoclimate. Outcrops and landforms can yield direct evidence of lake level, facies changes that record details of lake-level fluctuations, and geologic events such as catastrophic floods, drainage-basin changes, and isostatic rebound. Cores can potentially yield continuous records when sampled in stable parts of lake basins and can provide proxies for changes in lake level, water temperature and chemistry, and ecological conditions in the surrounding landscape. However, proxies such as stable isotopes may be influenced by several competing factors the relative effects of which may be difficult to assess, and interpretations may be confounded by geologic events within the drainage basin that were unrecorded or not recognized in a core. The best evidence for documenting absolute lake-level changes lies within the shore, nearshore, and deltaic sediments that were deposited across piedmonts and at the mouths of streams as lake level rose and fell. We review the different shorezone environments and resulting deposits used in such reconstructions and discuss potential estimation errors.
\nLake-level studies based on deposits and landforms have provided paleohydrologic records ranging from general changes during the past million years to centennial-scale details of fluctuations during the late Pleistocene and Holocene. Outcrop studies have documented the integration histories of several important drainage basins, including the Humboldt, Amargosa, Owens, and Mojave river systems, that have evolved since the Miocene within the active tectonic setting of the Great Basin; these histories have influenced lake levels in terminal basins. Many pre-late Pleistocene lakes in the western Great Basin were significantly larger and record wetter conditions than the youngest lakes. Outcrop-based lake-level data provide important checks on core-based proxy interpretations; we discuss four such comparisons. In some cases, such as for Lakes Owens and Manix, outcrop and core data synthesis yields stronger and more complete records; in other cases, such as for Bonneville and Lahontan, conflicts point toward reconsideration of confounding factors in interpretation of core-based proxies.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Science Reviews","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.quascirev.2014.04.012","usgsCitation":"Reheis, M., Adams, K., Oviatt, C., and Bacon, S.N., 2014, Pluvial lakes in the Great Basin of the western United States: a view from the outcrop: Quaternary Science Reviews, v. 97, p. 33-57, https://doi.org/10.1016/j.quascirev.2014.04.012.","productDescription":"25 p.","startPage":"33","endPage":"57","numberOfPages":"25","ipdsId":"IP-044438","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":288206,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":288205,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.quascirev.2014.04.012"}],"country":"United States","otherGeospatial":"Great Basin","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -121.38,32.36 ], [ -121.38,44.81 ], [ -110.35,44.81 ], [ -110.35,32.36 ], [ -121.38,32.36 ] ] ] } } ] }","volume":"97","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53981ad5e4b09e5ae91f9db2","contributors":{"authors":[{"text":"Reheis, Marith C. 0000-0002-8359-323X","orcid":"https://orcid.org/0000-0002-8359-323X","contributorId":101244,"corporation":false,"usgs":true,"family":"Reheis","given":"Marith C.","affiliations":[],"preferred":false,"id":494540,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Adams, Kenneth D.","contributorId":75586,"corporation":false,"usgs":true,"family":"Adams","given":"Kenneth D.","affiliations":[],"preferred":false,"id":494538,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Oviatt, Charles G.","contributorId":13503,"corporation":false,"usgs":true,"family":"Oviatt","given":"Charles G.","affiliations":[],"preferred":false,"id":494537,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bacon, Steven N.","contributorId":93391,"corporation":false,"usgs":true,"family":"Bacon","given":"Steven","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":494539,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70111688,"text":"70111688 - 2014 - Natural uranium and strontium isotope tracers of water sources and surface water-groundwater interactions in arid wetlands: Pahranagat Valley, Nevada, USA","interactions":[],"lastModifiedDate":"2014-06-06T11:53:25","indexId":"70111688","displayToPublicDate":"2014-06-06T11:48:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Natural uranium and strontium isotope tracers of water sources and surface water-groundwater interactions in arid wetlands: Pahranagat Valley, Nevada, USA","docAbstract":"Near-surface physical and chemical process can strongly affect dissolved-ion concentrations and stable isotope compositions of water in wetland settings, especially under arid climate conditions. In contrast, heavy radiogenic isotopes of strontium (87Sr/86Sr) and uranium (234U/238U) remain largely unaffected and can be used to help identify unique signatures from different sources and quantify end-member mixing that would otherwise be difficult to determine. The utility of combined Sr and U isotopes are demonstrated in this study of wetland habitats on the Pahranagat National Wildlife Refuge, which depend on supply from large-volume springs north of the Refuge, and from small-volume springs and seeps within the Refuge. Water budgets from these sources have not been quantified previously. Evaporation, transpiration, seasonally variable surface flow, and water management practices complicate the use of conventional methods for determining source contributions and mixing relations. In contrast, 87Sr/86Sr and 234U/238U remain unfractionated under these conditions, and compositions at a given site remain constant. Differences in Sr- and U-isotopic signatures between individual sites can be related by simple two- or three-component mixing models. Results indicate that surface flow constituting the Refuge’s irrigation source consists of a 65:25:10 mixture of water from two distinct regionally sourced carbonate aquifer springs, and groundwater from locally sourced volcanic aquifers. Within the Refuge, contributions from the irrigation source and local groundwater are readily determined and depend on proximity to those sources as well as water management practices.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.jhydrol.2014.05.011","usgsCitation":"Paces, J.B., and Wurster, F.C., 2014, Natural uranium and strontium isotope tracers of water sources and surface water-groundwater interactions in arid wetlands: Pahranagat Valley, Nevada, USA: Journal of Hydrology, v. 517, p. 213-225, https://doi.org/10.1016/j.jhydrol.2014.05.011.","productDescription":"13 p.","startPage":"213","endPage":"225","numberOfPages":"13","ipdsId":"IP-049329","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":288145,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":288135,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2014.05.011"}],"country":"United States","state":"Nevada","otherGeospatial":"Pahranagat Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -115.313393,37.187186 ], [ -115.313393,37.618914 ], [ -115.025947,37.618914 ], [ -115.025947,37.187186 ], [ -115.313393,37.187186 ] ] ] } } ] }","volume":"517","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7782e4b0abf75cf2c161","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":494438,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wurster, Frederic C. 0000-0002-5393-2878 fred_wurster@fws.gov","orcid":"https://orcid.org/0000-0002-5393-2878","contributorId":74301,"corporation":false,"usgs":true,"family":"Wurster","given":"Frederic","email":"fred_wurster@fws.gov","middleInitial":"C.","affiliations":[],"preferred":false,"id":494439,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70111602,"text":"sir20145072 - 2014 - Concentrations, loads, and yields of total nitrogen and total phosphorus in the Barnegat Bay-Little Egg Harbor watershed, New Jersey, 1989-2011, at multiple spatial scales","interactions":[],"lastModifiedDate":"2014-06-05T14:55:51","indexId":"sir20145072","displayToPublicDate":"2014-06-05T14:39:00","publicationYear":"2014","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":"2014-5072","title":"Concentrations, loads, and yields of total nitrogen and total phosphorus in the Barnegat Bay-Little Egg Harbor watershed, New Jersey, 1989-2011, at multiple spatial scales","docAbstract":"Concentrations, loads, and yields of nutrients (total nitrogen and total phosphorus) were calculated for the Barnegat Bay-Little Egg Harbor (BB-LEH) watershed for 1989–2011 at annual and seasonal (growing and nongrowing) time scales. Concentrations, loads, and yields were calculated at three spatial scales: for each of the 81 subbasins specified by 14-digit hydrologic unit codes (HUC-14s); for each of the three BB-LEH watershed segments, which coincide with segmentation of the BB-LEH estuary; and for the entire BB-LEH watershed. Base-flow and runoff values were calculated separately and were combined to provide total values.
\nAvailable surface-water-quality data for all streams in the BB-LEH watershed for 1980–2011 were compiled from existing datasets and quality assured. Precipitation and streamflow data were used to distinguish between water-quality samples that were collected during base-flow conditions and those that were collected during runoff conditions. Base-flow separation of hydrographs of six streams in the BB-LEH watershed indicated that base flow accounts for about 72 to 94 percent of total flow in streams in the watershed.
\nBase-flow mean concentrations (BMCs) of total nitrogen (TN) and total phosphorus (TP) for each HUC-14 subbasin were calculated from relations between land use and measured base-flow concentrations. These relations were developed from multiple linear regression models determined from water-quality data collected at sampling stations in the BB-LEH watershed under base-flow conditions and land-use percentages in the contributing drainage basins. The total watershed base-flow volume was estimated for each year and season from continuous streamflow records for 1989–2011 and relations between precipitation and streamflow during base-flow conditions. For each year and season, the base-flow load and yield were then calculated for each HUC-14 subbasin from the BMCs, total base-flow volume, and drainage area.
\nThe watershed-loading application PLOAD was used to calculate runoff concentrations, loads, and yields of TN and TP at the HUC-14 scale. Flow-weighted event-mean concentrations (EMCs) for runoff were developed for each major land-use type in the watershed using storm sampling data from four streams in the BB-LEH watershed and three streams outside the watershed. The EMCs were developed separately for the growing and nongrowing seasons, and were typically greater during the growing season. The EMCs, along with annual and seasonal precipitation amounts and percent imperviousness associated with land-use types, were used as inputs to PLOAD to calculate annual and seasonal runoff concentrations, loads, and yields at the HUC-14 scale.
\nOver the period of study (1989–2011), total surface-water loads (base flow plus runoff) for the entire BB-LEH watershed for TN ranged from about 455,000 kilograms (kg) as N (1995) to 857,000 kg as N (2010). For TP, total loads for the watershed ranged from about 17,000 (1995) to 32,000 kg as P (2010). On average, the north segment accounted for about 66 percent of the annual TN load and 63 percent of the annual TP load, and the central and south segments each accounted for less than 20 percent of the nutrient loads. Loads and yields were strongly associated with precipitation patterns, ensuing hydrologic conditions, and land use. HUC-14 subbasins with the highest yields of nutrients are concentrated in the northern part of the watershed, and have the highest percentages of urban or agricultural land use. Subbasins with the lowest TN and TP yields are dominated by forest cover.
\nPercentages of turf (lawn) cover and nonturf cover were estimated for the watershed. Of the developed land in the watershed, nearly one quarter (24.9 percent) was mapped as turf cover. Because there is a strong relation between percent turf and percent developed land, percent turf in the watershed typically increases with percent development, and the amount of development can be considered a reasonable predictor of the amount of turf cover in the watershed. In the BB-LEH watershed, calculated concentrations of TN and TP were greater for developed–turf areas than for developed–nonturf areas, which, in turn, were greater than those for undeveloped areas.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20145072","collaboration":"Prepared in cooperation with the New England Interstate Water Pollution Control Commission","usgsCitation":"Baker, R.J., Wieben, C.M., Lathrop, R.G., and Nicholson, R.S., 2014, Concentrations, loads, and yields of total nitrogen and total phosphorus in the Barnegat Bay-Little Egg Harbor watershed, New Jersey, 1989-2011, at multiple spatial scales: U.S. Geological Survey Scientific Investigations Report 2014-5072, Report: vii, 64 p.; Table 13, https://doi.org/10.3133/sir20145072.","productDescription":"Report: vii, 64 p.; Table 13","numberOfPages":"76","onlineOnly":"Y","additionalOnlineFiles":"Y","temporalStart":"1989-01-01","temporalEnd":"2011-12-31","ipdsId":"IP-039063","costCenters":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"links":[{"id":288123,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20145072.jpg"},{"id":288120,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2014/5072/"},{"id":288122,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2014/5072/pdf/sir2014-5072.pdf"},{"id":288121,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/sir/2014/5072/table/sir2014-5072_table13-loads-huc.xlsx"}],"country":"United States","state":"New Jersey","otherGeospatial":"Barnegat Bay;Little Egg Harbor","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -74.6007,39.4669 ], [ -74.6007,40.2311 ], [ -73.9678,40.2311 ], [ -73.9678,39.4669 ], [ -74.6007,39.4669 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5391834fe4b06f80638265a0","contributors":{"authors":[{"text":"Baker, Ronald J. rbaker@usgs.gov","contributorId":1436,"corporation":false,"usgs":true,"family":"Baker","given":"Ronald","email":"rbaker@usgs.gov","middleInitial":"J.","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":494374,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wieben, Christine M. 0000-0001-5825-5119 cwieben@usgs.gov","orcid":"https://orcid.org/0000-0001-5825-5119","contributorId":4270,"corporation":false,"usgs":true,"family":"Wieben","given":"Christine","email":"cwieben@usgs.gov","middleInitial":"M.","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":494376,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lathrop, Richard G.","contributorId":63727,"corporation":false,"usgs":true,"family":"Lathrop","given":"Richard","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":494377,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nicholson, Robert S. rnichol@usgs.gov","contributorId":2283,"corporation":false,"usgs":true,"family":"Nicholson","given":"Robert","email":"rnichol@usgs.gov","middleInitial":"S.","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":494375,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70103029,"text":"sir20145064 - 2014 - Continuous water-quality monitoring and regression analysis to estimate constituent concentrations and loads in the Red River of the North at Fargo and Grand Forks, North Dakota, 2003-12","interactions":[],"lastModifiedDate":"2017-10-12T20:13:26","indexId":"sir20145064","displayToPublicDate":"2014-06-05T12:51:00","publicationYear":"2014","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":"2014-5064","title":"Continuous water-quality monitoring and regression analysis to estimate constituent concentrations and loads in the Red River of the North at Fargo and Grand Forks, North Dakota, 2003-12","docAbstract":"The Red River of the North (hereafter referred to as “Red River”) Basin is an important hydrologic region where water is a valuable resource for the region’s economy. Continuous water-quality monitors have been operated by the U.S. Geological Survey, in cooperation with the North Dakota Department of Health, Minnesota Pollution Control Agency, City of Fargo, City of Moorhead, City of Grand Forks, and City of East Grand Forks at the Red River at Fargo, North Dakota, from 2003 through 2012 and at Grand Forks, N.Dak., from 2007 through 2012. The purpose of the monitoring was to provide a better understanding of the water-quality dynamics of the Red River and provide a way to track changes in water quality. Regression equations were developed that can be used to estimate concentrations and loads for dissolved solids, sulfate, chloride, nitrate plus nitrite, total phosphorus, and suspended sediment using explanatory variables such as streamflow, specific conductance, and turbidity.
\nSpecific conductance was determined to be a significant explanatory variable for estimating dissolved solids concentrations at the Red River at Fargo and Grand Forks. The regression equations provided good relations between dissolved solid concentrations and specific conductance for the Red River at Fargo and at Grand Forks, with adjusted coefficients of determination of 0.99 and 0.98, respectively. Specific conductance, log-transformed streamflow, and a seasonal component were statistically significant explanatory variables for estimating sulfate in the Red River at Fargo and Grand Forks. Regression equations provided good relations between sulfate concentrations and the explanatory variables, with adjusted coefficients of determination of 0.94 and 0.89, respectively.
\nFor the Red River at Fargo and Grand Forks, specific conductance, streamflow, and a seasonal component were statistically significant explanatory variables for estimating chloride. For the Red River at Grand Forks, a time component also was a statistically significant explanatory variable for estimating chloride. The regression equations for chloride at the Red River at Fargo provided a fair relation between chloride concentrations and the explanatory variables, with an adjusted coefficient of determination of 0.66 and the equation for the Red River at Grand Forks provided a relatively good relation between chloride concentrations and the explanatory variables, with an adjusted coefficient of determination of 0.77.
\nTurbidity and streamflow were statistically significant explanatory variables for estimating nitrate plus nitrite concentrations at the Red River at Fargo and turbidity was the only statistically significant explanatory variable for estimating nitrate plus nitrite concentrations at Grand Forks. The regression equation for the Red River at Fargo provided a relatively poor relation between nitrate plus nitrite concentrations, turbidity, and streamflow, with an adjusted coefficient of determination of 0.46. The regression equation for the Red River at Grand Forks provided a fair relation between nitrate plus nitrite concentrations and turbidity, with an adjusted coefficient of determination of 0.73. Some of the variability that was not explained by the equations might be attributed to different sources contributing nitrates to the stream at different times. Turbidity, streamflow, and a seasonal component were statistically significant explanatory variables for estimating total phosphorus at the Red River at Fargo and Grand Forks. The regression equation for the Red River at Fargo provided a relatively fair relation between total phosphorus concentrations, turbidity, streamflow, and season, with an adjusted coefficient of determination of 0.74. The regression equation for the Red River at Grand Forks provided a good relation between total phosphorus concentrations, turbidity, streamflow, and season, with an adjusted coefficient of determination of 0.87.
\nFor the Red River at Fargo, turbidity and streamflow were statistically significant explanatory variables for estimating suspended-sediment concentrations. For the Red River at Grand Forks, turbidity was the only statistically significant explanatory variable for estimating suspended-sediment concentration. The regression equation at the Red River at Fargo provided a good relation between suspended-sediment concentration, turbidity, and streamflow, with an adjusted coefficient of determination of 0.95. The regression equation for the Red River at Grand Forks provided a good relation between suspended-sediment concentration and turbidity, with an adjusted coefficient of determination of 0.96.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20145064","collaboration":"Prepared in cooperation with the North Dakota Department of Health, Minnesota Pollution Control Agency, City of Fargo, City of Moorhead, City of Grand Forks, and City of East Grand Forks","usgsCitation":"Galloway, J.M., 2014, Continuous water-quality monitoring and regression analysis to estimate constituent concentrations and loads in the Red River of the North at Fargo and Grand Forks, North Dakota, 2003-12: U.S. Geological Survey Scientific Investigations Report 2014-5064, vi, 37 p., https://doi.org/10.3133/sir20145064.","productDescription":"vi, 37 p.","numberOfPages":"48","onlineOnly":"Y","temporalStart":"2003-01-01","temporalEnd":"2012-12-31","ipdsId":"IP-054797","costCenters":[{"id":478,"text":"North Dakota Water Science Center","active":true,"usgs":true},{"id":34685,"text":"Dakota Water Science Center","active":true,"usgs":true}],"links":[{"id":288108,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2014/5064/"},{"id":288109,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2014/5064/pdf/sir2014-5064.pdf"},{"id":288110,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20145064.jpg"}],"country":"United States","state":"North Dakota","city":"Grand Forks;Fargo","otherGeospatial":"Red River Of The North","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -100.9863,45.4996 ], [ -100.9863,49.0 ], [ -93.8342,49.0 ], [ -93.8342,45.4996 ], [ -100.9863,45.4996 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53918350e4b06f80638265a4","contributors":{"authors":[{"text":"Galloway, Joel M. 0000-0002-9836-9724 jgallowa@usgs.gov","orcid":"https://orcid.org/0000-0002-9836-9724","contributorId":1562,"corporation":false,"usgs":true,"family":"Galloway","given":"Joel","email":"jgallowa@usgs.gov","middleInitial":"M.","affiliations":[{"id":34685,"text":"Dakota Water Science Center","active":true,"usgs":true},{"id":478,"text":"North Dakota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":493093,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70103475,"text":"sir20145083 - 2014 - Monitoring recharge in areas of seasonally frozen ground in the Columbia Plateau and Snake River Plain, Idaho, Oregon, and Washington","interactions":[],"lastModifiedDate":"2014-06-05T08:45:59","indexId":"sir20145083","displayToPublicDate":"2014-06-05T08:26:00","publicationYear":"2014","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":"2014-5083","title":"Monitoring recharge in areas of seasonally frozen ground in the Columbia Plateau and Snake River Plain, Idaho, Oregon, and Washington","docAbstract":"Seasonally frozen ground occurs over approximately one‑third of the contiguous United States, causing increased winter runoff. Frozen ground generally rejects potential groundwater recharge. Nearly all recharge from precipitation in semi-arid regions such as the Columbia Plateau and the Snake River Plain in Idaho, Oregon, and Washington, occurs between October and March, when precipitation is most abundant and seasonally frozen ground is commonplace. The temporal and spatial distribution of frozen ground is expected to change as the climate warms. It is difficult to predict the distribution of frozen ground, however, because of the complex ways ground freezes and the way that snow cover thermally insulates soil, by keeping it frozen longer than it would be if it was not snow covered or, more commonly, keeping the soil thawed during freezing weather.
\nA combination of satellite remote sensing and ground truth measurements was used with some success to investigate seasonally frozen ground at local to regional scales. The frozen-ground/snow-cover algorithm from the National Snow and Ice Data Center, combined with the 21-year record of passive microwave observations from the Special Sensor Microwave Imager onboard a Defense Meteorological Satellite Program satellite, provided a unique time series of frozen ground. Periodically repeating this methodology and analyzing for trends can be a means to monitor possible regional changes to frozen ground that could occur with a warming climate.
\nThe Precipitation-Runoff Modeling System watershed model constructed for the upper Crab Creek Basin in the Columbia Plateau and Reynolds Creek basin on the eastern side of the Snake River Plain simulated recharge and frozen ground for several future climate scenarios. Frozen ground was simulated with the Continuous Frozen Ground Index, which is influenced by air temperature and snow cover. Model simulation results showed a decreased occurrence of frozen ground that coincided with increased temperatures in the future climate scenarios. Snow cover decreased in the future climate scenarios coincident with the temperature increases. Although annual precipitation was greater in future climate scenarios, thereby increasing the amount of water available for recharge over current (baseline) simulations, actual evapotranspiration also increased and reduced the amount of water available for recharge over baseline simulations. The upper Crab Creek model shows no significant trend in the rates of recharge in future scenarios. In these scenarios, annual precipitation is greater than the baseline averages, offsetting the effects of greater evapotranspiration in future scenarios. In the Reynolds Creek Basin simulations, precipitation was held constant in future scenarios and recharge was reduced by 1.0 percent for simulations representing average conditions in 2040 and reduced by 4.3 percent for simulations representing average conditions in 2080. The focus of the results of future scenarios for the Reynolds Creek Basin was the spatial components of selected hydrologic variables for this 92 square mile mountainous basin with 3,600 feet of relief. Simulation results from the watershed model using the Continuous Frozen Ground Index provided a relative measure of change in frozen ground, but could not identify the within-soil processes that allow or reject available water to recharge aquifers. The model provided a means to estimate what might occur in the future under prescribed climate scenarios, but more detailed energy-balance models of frozen-ground hydrology are needed to accurately simulate recharge under seasonally frozen ground and provide a better understanding of how changes in climate may alter infiltration.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20145083","collaboration":"Prepared in collaboration with the USGS Office of Groundwater","usgsCitation":"Mastin, M., and Josberger, E., 2014, Monitoring recharge in areas of seasonally frozen ground in the Columbia Plateau and Snake River Plain, Idaho, Oregon, and Washington: U.S. Geological Survey Scientific Investigations Report 2014-5083, vii, 63 p., https://doi.org/10.3133/sir20145083.","productDescription":"vii, 63 p.","numberOfPages":"76","onlineOnly":"Y","ipdsId":"IP-051060","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":288102,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/sir20145083.jpg"},{"id":288098,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sir/2014/5083/"},{"id":288101,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2014/5083/pdf/sir20145083.pdf"}],"projection":"Universal Transverse Mercator projection, Zone 11","datum":"North American Datum of 1983","country":"United States","state":"Idaho;Oregon;Washington","otherGeospatial":"Columbia Plateau;Crab Creek Basin;Reynolds Creek Basin;Snake River Plain","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.47,41.99 ], [ -122.47,49.0 ], [ -108.63,49.0 ], [ -108.63,41.99 ], [ -122.47,41.99 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53918351e4b06f80638265ac","contributors":{"authors":[{"text":"Mastin, Mark","contributorId":41312,"corporation":false,"usgs":true,"family":"Mastin","given":"Mark","affiliations":[],"preferred":false,"id":493341,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Josberger, Edward","contributorId":30733,"corporation":false,"usgs":true,"family":"Josberger","given":"Edward","affiliations":[],"preferred":false,"id":493340,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70111094,"text":"70111094 - 2014 - Soil, plant, and terrain effects on natural perchlorate distribution in a desert landscape","interactions":[],"lastModifiedDate":"2018-09-04T16:50:35","indexId":"70111094","displayToPublicDate":"2014-06-02T16:20:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Soil, plant, and terrain effects on natural perchlorate distribution in a desert landscape","docAbstract":"Perchlorate (ClO4−) is a contaminant that occurs naturally throughout the world, but little is known about its distribution and interactions in terrestrial ecosystems. The objectives of this Amargosa Desert, Nevada study were to determine (i) the local-scale distribution of shallow-soil (0–30 cm) ClO4− with respect to shrub proximity (far and near) in three geomorphic settings (shoulder slope, footslope, and valley floor); (ii) the importance of soil, plant, and terrain variables on the hillslope-distribution of shallow-soil and creosote bush [Larrea tridentata (Sessé & Moc. ex DC.) Coville] ClO4−; and (iii) atmospheric (wet plus dry, including dust) deposition of ClO4− in relation to soil and plant reservoirs and cycling. Soil ClO4− ranged from 0.3 to 5.0 μg kg−1. Within settings, valley floor ClO4− was 17× less near shrubs due in part to enhanced leaching, whereas shoulder and footslope values were ∼2× greater near shrubs. Hillslope regression models (soil, R2 = 0.42; leaf, R2 = 0.74) identified topographic and soil effects on ClO4− deposition, transport, and cycling. Selective plant uptake, bioaccumulation, and soil enrichment were evidenced by leaf ClO4− concentrations and Cl−/ClO4− molar ratios that were ∼8000× greater and 40× less, respectively, than soil values. Atmospheric deposition ClO4− flux was 343 mg ha−1 yr−1, ∼10× that for published southwestern wet-deposition fluxes. Creosote bush canopy ClO4− (1310 mg ha−1) was identified as a previously unrecognized but important and active reservoir. Nitrate δ18O analyses of atmospheric deposition and soil supported the leaf-cycled–ClO4− input hypothesis. This study provides basic data on ClO4− distribution and cycling that are pertinent to the assessment of environmental impacts in desert ecosystems and broadly transferable to anthropogenically contaminated systems.","language":"English","publisher":"ASCESS","doi":"10.2134/jeq2013.11.0453","usgsCitation":"Andraski, B.J., Jackson, W., Welborn, T.L., Böhlke, J., Sevanthi, R., and Stonestrom, D.A., 2014, Soil, plant, and terrain effects on natural perchlorate distribution in a desert landscape: Journal of Environmental Quality, v. 43, no. 3, p. 980-994, https://doi.org/10.2134/jeq2013.11.0453.","productDescription":"15 p.","startPage":"980","endPage":"994","ipdsId":"IP-052625","costCenters":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":472955,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2134/jeq2013.11.0453","text":"Publisher Index Page"},{"id":287969,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -117.1582,35.9936 ], [ -117.1582,37.1034 ], [ -115.9415,37.1034 ], [ -115.9415,35.9936 ], [ -117.1582,35.9936 ] ] ] } } ] }","volume":"43","issue":"3","noUsgsAuthors":false,"publicationDate":"2014-05-01","publicationStatus":"PW","scienceBaseUri":"53ae782ee4b0abf75cf2ccdf","contributors":{"authors":[{"text":"Andraski, Brian J. 0000-0002-2086-0417 andraski@usgs.gov","orcid":"https://orcid.org/0000-0002-2086-0417","contributorId":168800,"corporation":false,"usgs":true,"family":"Andraski","given":"Brian","email":"andraski@usgs.gov","middleInitial":"J.","affiliations":[{"id":38175,"text":"Toxics Substances Hydrology Program","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":false,"id":494247,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jackson, W.A.","contributorId":15549,"corporation":false,"usgs":true,"family":"Jackson","given":"W.A.","email":"","affiliations":[],"preferred":false,"id":494251,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Welborn, Toby L. 0000-0003-4839-2405 tlwelbor@usgs.gov","orcid":"https://orcid.org/0000-0003-4839-2405","contributorId":2295,"corporation":false,"usgs":true,"family":"Welborn","given":"Toby","email":"tlwelbor@usgs.gov","middleInitial":"L.","affiliations":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true},{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"preferred":true,"id":494249,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Böhlke, John Karl 0000-0001-5693-6455","orcid":"https://orcid.org/0000-0001-5693-6455","contributorId":22843,"corporation":false,"usgs":true,"family":"Böhlke","given":"John Karl","affiliations":[],"preferred":false,"id":494252,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sevanthi, Ritesh","contributorId":14301,"corporation":false,"usgs":true,"family":"Sevanthi","given":"Ritesh","affiliations":[],"preferred":false,"id":494250,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Stonestrom, David A. 0000-0001-7883-3385 dastones@usgs.gov","orcid":"https://orcid.org/0000-0001-7883-3385","contributorId":2280,"corporation":false,"usgs":true,"family":"Stonestrom","given":"David","email":"dastones@usgs.gov","middleInitial":"A.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":494248,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70110938,"text":"70110938 - 2014 - Ecohydrology of adjacent sagebrush and lodgepole pine ecosystems: the consequences of climate change and disturbance","interactions":[],"lastModifiedDate":"2014-06-02T09:37:06","indexId":"70110938","displayToPublicDate":"2014-06-02T09:31:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1478,"text":"Ecosystems","active":true,"publicationSubtype":{"id":10}},"title":"Ecohydrology of adjacent sagebrush and lodgepole pine ecosystems: the consequences of climate change and disturbance","docAbstract":"Sagebrush steppe and lodgepole pine forests are two of the most widespread vegetation types in the western United States and they play crucial roles in the hydrologic cycle of these water-limited regions. We used a process-based ecosystem water model to characterize the potential impact of climate change and disturbance (wildfire and beetle mortality) on water cycling in adjacent sagebrush and lodgepole pine ecosystems. Despite similar climatic and topographic conditions between these ecosystems at the sites examined, lodgepole pine, and sagebrush exhibited consistent differences in water balance, notably more evaporation and drier summer soils in the sagebrush and greater transpiration and less water yield in lodgepole pine. Canopy disturbances (either fire or beetle) have dramatic impacts on water balance and availability: reducing transpiration while increasing evaporation and water yield. Results suggest that climate change may reduce snowpack, increase evaporation and transpiration, and lengthen the duration of dry soil conditions in the summer, but may have uncertain effects on drainage. Changes in the distribution of sagebrush and lodgepole pine ecosystems as a consequence of climate change and/or altered disturbance regimes will likely alter ecosystem water balance.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecosystems","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","doi":"10.1007/s10021-013-9745-1","usgsCitation":"Bradford, J.B., Schlaepfer, D., and Lauenroth, W.K., 2014, Ecohydrology of adjacent sagebrush and lodgepole pine ecosystems: the consequences of climate change and disturbance: Ecosystems, v. 17, no. 4, p. 590-605, https://doi.org/10.1007/s10021-013-9745-1.","productDescription":"16 p.","startPage":"590","endPage":"605","numberOfPages":"16","ipdsId":"IP-038315","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":287941,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":287905,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10021-013-9745-1"}],"country":"United States","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -113.1592,36.8093 ], [ -113.1592,42.033 ], [ -103.9526,42.033 ], [ -103.9526,36.8093 ], [ -113.1592,36.8093 ] ] ] } } ] }","volume":"17","issue":"4","noUsgsAuthors":false,"publicationDate":"2014-01-14","publicationStatus":"PW","scienceBaseUri":"53ae7692e4b0abf75cf2bfa6","contributors":{"authors":[{"text":"Bradford, John B. 0000-0001-9257-6303 jbradford@usgs.gov","orcid":"https://orcid.org/0000-0001-9257-6303","contributorId":611,"corporation":false,"usgs":true,"family":"Bradford","given":"John","email":"jbradford@usgs.gov","middleInitial":"B.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":494203,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schlaepfer, Daniel R.","contributorId":105189,"corporation":false,"usgs":false,"family":"Schlaepfer","given":"Daniel R.","affiliations":[{"id":7098,"text":"University of Wyoming, Department of Botany, 1000 E. University Avenue, Laramie, WY 82071, USA","active":true,"usgs":false}],"preferred":false,"id":494205,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lauenroth, William K.","contributorId":80982,"corporation":false,"usgs":false,"family":"Lauenroth","given":"William","email":"","middleInitial":"K.","affiliations":[{"id":7098,"text":"University of Wyoming, Department of Botany, 1000 E. University Avenue, Laramie, WY 82071, USA","active":true,"usgs":false}],"preferred":false,"id":494204,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70119245,"text":"70119245 - 2014 - Isotopically modified silver nanoparticles to assess nanosilver bioavailability and toxicity at environmentally relevant exposures","interactions":[],"lastModifiedDate":"2018-09-18T16:41:14","indexId":"70119245","displayToPublicDate":"2014-06-01T14:13:27","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1529,"text":"Environmental Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Isotopically modified silver nanoparticles to assess nanosilver bioavailability and toxicity at environmentally relevant exposures","docAbstract":"A major challenge in understanding the environmental implications of nanotechnology lies in studying nanoparticle uptake in organisms at environmentally realistic exposure concentrations. Typically, high exposure concentrations are needed to trigger measurable effects and to detect accumulation above background. But application of tracer techniques can overcome these limitations. Here we synthesised, for the first time, citrate-coated Ag nanoparticles using Ag that was 99.7 % 109Ag. In addition to conducting reactivity and dissolution studies, we assessed the bioavailability and toxicity of these isotopically modified Ag nanoparticles (109Ag NPs) to a freshwater snail under conditions typical of nature. We showed that accumulation of 109Ag from 109Ag NPs is detectable in the tissues of Lymnaea stagnalis after 24-h exposure to aqueous concentrations as low as 6 ng L–1 as well as after 3 h of dietary exposure to concentrations as low as 0.07 μg g–1. Silver uptake from unlabelled Ag NPs would not have been detected under similar exposure conditions. Uptake rates of 109Ag from 109Ag NPs mixed with food or dispersed in water were largely linear over a wide range of concentrations. Particle dissolution was most important at low waterborne concentrations. We estimated that 70 % of the bioaccumulated 109Ag concentration in L. stagnalis at exposures <0.1 µg L–1 originated from the newly solubilised Ag. Above this concentration, we predicted that 80 % of the bioaccumulated 109Ag concentration originated from the 109Ag NPs. It was not clear if agglomeration had a major influence on uptake rates.","language":"English","publisher":"CSIRO Publishing","publisherLocation":"Collingwood, Australia","doi":"10.1071/EN13141","usgsCitation":"Croteau, M., Dybowska, A.D., Luoma, S.N., Misra, S.K., and Valsami-Jones, E., 2014, Isotopically modified silver nanoparticles to assess nanosilver bioavailability and toxicity at environmentally relevant exposures: Environmental Chemistry, v. 11, no. 3, p. 247-256, https://doi.org/10.1071/EN13141.","productDescription":"10 p.","startPage":"247","endPage":"256","numberOfPages":"10","ipdsId":"IP-052049","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":472958,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1071/en13141","text":"Publisher Index Page"},{"id":291719,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1071/EN13141"},{"id":291720,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53e1efcfe4b0fe532be2de39","contributors":{"authors":[{"text":"Croteau, Marie-Noële","contributorId":22863,"corporation":false,"usgs":true,"family":"Croteau","given":"Marie-Noële","affiliations":[],"preferred":false,"id":497617,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dybowska, Agnieszka D.","contributorId":101201,"corporation":false,"usgs":true,"family":"Dybowska","given":"Agnieszka","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":497620,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luoma, Samuel N. 0000-0001-5443-5091 snluoma@usgs.gov","orcid":"https://orcid.org/0000-0001-5443-5091","contributorId":2287,"corporation":false,"usgs":true,"family":"Luoma","given":"Samuel","email":"snluoma@usgs.gov","middleInitial":"N.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":497616,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Misra, Superb K.","contributorId":91231,"corporation":false,"usgs":true,"family":"Misra","given":"Superb","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":497619,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Valsami-Jones, Eugenia","contributorId":26057,"corporation":false,"usgs":true,"family":"Valsami-Jones","given":"Eugenia","email":"","affiliations":[],"preferred":false,"id":497618,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70122214,"text":"70122214 - 2014 - Channel catfish (Ictalurus punctatus) leukocytes express estrogen receptor isoforms ERα and ERβ2 and are functionally modulated by estrogens","interactions":[],"lastModifiedDate":"2018-09-18T16:19:28","indexId":"70122214","displayToPublicDate":"2014-06-01T12:19:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1644,"text":"Fish & Shellfish Immunology","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Channel catfish (Ictalurus punctatus) leukocytes express estrogen receptor isoforms ERα and ERβ2 and are functionally modulated by estrogens","title":"Channel catfish (Ictalurus punctatus) leukocytes express estrogen receptor isoforms ERα and ERβ2 and are functionally modulated by estrogens","docAbstract":"Estrogens are recognized as modulators of immune responses in mammals and teleosts. While it is known that the effects of estrogens are mediated via leukocyte-specific estrogen receptors (ERs) in humans and mice, leucocyte-specific estrogen receptor expression and the effects of estrogens on this cell population is less explored and poorly understood in teleosts. Here in, we verify that channel catfish (Ictalurus punctaus) leukocytes express ERα and ERβ2. Transcripts of these isoforms were detected in tissue-associated leukocyte populations by PCR, but ERβ2 was rarely detected in PBLs. Expression of these receptors was temporally regulated in PBLs following polyclonal activation by concanavalin A, lipopolysaccharide or alloantigen based on evaluation by quantitative and end-point PCR. Examination of long-term leukocyte cell lines demonstrated that these receptors are differentially expressed depending on leukocyte lineage and phenotype. Expression of ERs was also temporally dynamic in some leukocyte lineages and may reflect stage of cell maturity. Estrogens affect the responsiveness of channel catfish peripheral blood leukocytes (PBLs) to mitogens in vitro. Similarly, bactericidal activity and phorbol 12-myristate 13-acetate induced respiratory burst was modulated by 17β-estradiol. These actions were blocked by the pure ER antagonist ICI 182780 indicating that response is, in part, mediated via ERα. In summary, estrogen receptors are expressed in channel catfish leukocytes and participate in the regulation of the immune response. This is the first time leukocyte lineage expression has been reported in teleost cell lines.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.fsi.2014.06.021","usgsCitation":"Iwanowicz, L., Stafford, J.L., Patiño, R., Bengten, E., Miller, N.W., and Blazer, V., 2014, Channel catfish (Ictalurus punctatus) leukocytes express estrogen receptor isoforms ERα and ERβ2 and are functionally modulated by estrogens: Fish & Shellfish Immunology, v. 40, no. 1, p. 109-119, https://doi.org/10.1016/j.fsi.2014.06.021.","productDescription":"11 p.","startPage":"109","endPage":"119","numberOfPages":"11","ipdsId":"IP-056590","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":472960,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.fsi.2014.06.021","text":"Publisher Index Page"},{"id":293032,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":293031,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.fsi.2014.06.021"}],"volume":"40","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53fd9f48e4b0adaeea6c4df7","contributors":{"authors":[{"text":"Iwanowicz, Luke R.","contributorId":11902,"corporation":false,"usgs":true,"family":"Iwanowicz","given":"Luke R.","affiliations":[],"preferred":false,"id":499462,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stafford, James L.","contributorId":20661,"corporation":false,"usgs":true,"family":"Stafford","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":499463,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Patiño, Reynaldo","contributorId":58359,"corporation":false,"usgs":true,"family":"Patiño","given":"Reynaldo","affiliations":[],"preferred":false,"id":499466,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bengten, Eva","contributorId":53298,"corporation":false,"usgs":true,"family":"Bengten","given":"Eva","affiliations":[],"preferred":false,"id":499465,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Miller, Norman W.","contributorId":20662,"corporation":false,"usgs":true,"family":"Miller","given":"Norman","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":499464,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Blazer, Vicki 0000-0001-6647-9614 vblazer@usgs.gov","orcid":"https://orcid.org/0000-0001-6647-9614","contributorId":792,"corporation":false,"usgs":true,"family":"Blazer","given":"Vicki","email":"vblazer@usgs.gov","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":499461,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70159887,"text":"70159887 - 2014 - Mercury cycling in agricultural and managed wetlands, Yolo Bypass, California: Spatial and seasonal variations in water quality","interactions":[],"lastModifiedDate":"2018-09-14T15:52:22","indexId":"70159887","displayToPublicDate":"2014-06-01T00:00:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Mercury cycling in agricultural and managed wetlands, Yolo Bypass, California: Spatial and seasonal variations in water quality","docAbstract":"The seasonal and spatial variability of water quality, including mercury species, was evaluated in agricultural and managed, non-agricultural wetlands in the Yolo Bypass Wildlife Area, an area managed for multiple beneficial uses including bird habitat and rice farming. The study was conducted during an 11-month period (June 2007 to April 2008) that included a summer growing season and flooded conditions during winter. Methylmercury (MeHg) concentrations in surface water varied over a wide range (0.1 to 37 ng L−1 unfiltered; 0.04 to 7.3 ng L−1 filtered). Maximum MeHg values are among the highest ever recorded in wetlands. Highest MeHg concentrations in unfiltered surface water were observed in drainage from wild rice fields during harvest (September 2007), and in white rice fields with decomposing rice straw during regional flooding (February 2008). The ratio of MeHg to total mercury (MeHg/THg) increased about 20-fold in both unfiltered and filtered water during the growing season (June to August 2007) in the white and wild rice fields, and about 5-fold in fallow fields (July to August 2007), while there was little to no change in MeHg/THg in the permanent wetland. Sulfate-bearing fertilizer had no effect on Hg(II) methylation, as sulfate-reducing bacteria were not sulfate limited in these agricultural wetlands. Concentrations of MeHg in filtered and unfiltered water correlated with filtered Fe, filtered Mn, DOC, and two indicators of sulfate reduction: the SO4 2 −/Cl− ratio, and δ34S in aqueous sulfate. These relationships suggest that microbial reduction of SO4 2−, Fe(III), and possibly Mn(IV) may contribute to net Hg(II)-methylation in this setting.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.scitotenv.2013.10.096","usgsCitation":"Alpers, C.N., Fleck, J.A., Marvin-DiPasquale, M.C., Stricker, C.A., Stephenson, M., and Taylor, H.E., 2014, Mercury cycling in agricultural and managed wetlands, Yolo Bypass, California: Spatial and seasonal variations in water quality: Science of the Total Environment, v. 484, p. 276-287, https://doi.org/10.1016/j.scitotenv.2013.10.096.","productDescription":"12 p.","startPage":"276","endPage":"287","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-043894","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":311845,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Yolo Bypass Wildlife Area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -121.63993835449219,\n 38.476438208301104\n ],\n [\n -121.63993835449219,\n 38.581184251457955\n ],\n [\n -121.58123016357422,\n 38.581184251457955\n ],\n [\n -121.58123016357422,\n 38.476438208301104\n ],\n [\n -121.63993835449219,\n 38.476438208301104\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"484","publishingServiceCenter":{"id":1,"text":"Sacramento PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"566175d8e4b06a3ea36c56c5","contributors":{"authors":[{"text":"Alpers, Charles N. 0000-0001-6945-7365 cnalpers@usgs.gov","orcid":"https://orcid.org/0000-0001-6945-7365","contributorId":411,"corporation":false,"usgs":true,"family":"Alpers","given":"Charles","email":"cnalpers@usgs.gov","middleInitial":"N.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":580894,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fleck, Jacob A. 0000-0002-3217-3972 jafleck@usgs.gov","orcid":"https://orcid.org/0000-0002-3217-3972","contributorId":150174,"corporation":false,"usgs":true,"family":"Fleck","given":"Jacob","email":"jafleck@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":false,"id":580896,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Marvin-DiPasquale, Mark C. 0000-0002-8186-9167 mmarvin@usgs.gov","orcid":"https://orcid.org/0000-0002-8186-9167","contributorId":1485,"corporation":false,"usgs":true,"family":"Marvin-DiPasquale","given":"Mark","email":"mmarvin@usgs.gov","middleInitial":"C.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":580897,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stricker, Craig A. 0000-0002-5031-9437 cstricker@usgs.gov","orcid":"https://orcid.org/0000-0002-5031-9437","contributorId":1097,"corporation":false,"usgs":true,"family":"Stricker","given":"Craig","email":"cstricker@usgs.gov","middleInitial":"A.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":580895,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Stephenson, Mark","contributorId":56951,"corporation":false,"usgs":false,"family":"Stephenson","given":"Mark","email":"","affiliations":[],"preferred":false,"id":580898,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Taylor, Howard E. hetaylor@usgs.gov","contributorId":1551,"corporation":false,"usgs":true,"family":"Taylor","given":"Howard","email":"hetaylor@usgs.gov","middleInitial":"E.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":580960,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70155238,"text":"70155238 - 2014 - Transformation products and human metabolites of triclocarban and tricllosan in sewage sludge across the United States","interactions":[],"lastModifiedDate":"2018-09-04T16:39:55","indexId":"70155238","displayToPublicDate":"2014-06-01T00:00:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Transformation products and human metabolites of triclocarban and tricllosan in sewage sludge across the United States","docAbstract":"Removal of triclocarban (TCC) and triclosan (TCS) from wastewater is a function of adsorption, abiotic degradation, and microbial mineralization or transformation, reactions that are not currently controlled or optimized in the pollution control infrastructure of standard wastewater treatment. Here, we report on the levels of eight transformation products, human metabolites, and manufacturing byproducts of TCC and TCS in raw and treated sewage sludge. Two sample sets were studied: samples collected once from 14 wastewater treatment plants (WWTPs) representing nine states, and multiple samples collected from one WWTP monitored for 12 months. Time-course analysis of significant mass fluxes (α = 0.01) indicate that transformation of TCC (dechlorination) and TCS (methylation) occurred during sewage conveyance and treatment. Strong linear correlations were found between TCC and the human metabolite 2′-hydroxy-TCC (r = 0.84), and between the TCC-dechlorination products dichlorocarbanilide (DCC) and monochlorocarbanilide (r = 0.99). Mass ratios of DCC-to-TCC and of methyl-triclosan (MeTCS)-to-TCS, serving as indicators of transformation activity, revealed that transformation was widespread under different treatment regimes across the WWTPs sampled, though the degree of transformation varied significantly among study sites (α = 0.01). The analysis of sludge sampled before and after different unit operation steps (i.e., anaerobic digestion, sludge heat treatment, and sludge drying) yielded insights into the extent and location of TCC and TCS transformation. Results showed anaerobic digestion to be important for MeTCS transformation (37–74%), whereas its contribution to partial TCC dechlorination was limited (0.4–2.1%). This longitudinal and nationwide survey is the first to report the occurrence of transformation products, human metabolites, and manufacturing byproducts of TCC and TCS in sewage sludge.
","language":"English","publisher":"ACS Publications","doi":"10.1021/es5006362","usgsCitation":"Pycke, B.F., Roll, I.B., Brownawell, B., Kinney, C.A., Furlong, E.T., Kolpin, D.W., and Halden, R.U., 2014, Transformation products and human metabolites of triclocarban and tricllosan in sewage sludge across the United States: Environmental Science & Technology, v. 48, p. 7881-7890, https://doi.org/10.1021/es5006362.","productDescription":"10 p.","startPage":"7881","endPage":"7890","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-053412","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":472971,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"http://doi.org/10.1021/es5006362","text":"Publisher Index Page"},{"id":306436,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","publishingServiceCenter":{"id":4,"text":"Rolla PSC"},"noUsgsAuthors":false,"publicationDate":"2014-06-25","publicationStatus":"PW","scienceBaseUri":"55c333b0e4b033ef52106aa3","contributors":{"authors":[{"text":"Pycke, Benny F.G.","contributorId":15056,"corporation":false,"usgs":true,"family":"Pycke","given":"Benny","email":"","middleInitial":"F.G.","affiliations":[],"preferred":false,"id":567355,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roll, Isaac B.","contributorId":146303,"corporation":false,"usgs":false,"family":"Roll","given":"Isaac","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":567356,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brownawell, Bruce J.","contributorId":108264,"corporation":false,"usgs":true,"family":"Brownawell","given":"Bruce J.","affiliations":[],"preferred":false,"id":567357,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kinney, Chad A.","contributorId":56952,"corporation":false,"usgs":true,"family":"Kinney","given":"Chad","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":567358,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Furlong, Edward T. 0000-0002-7305-4603 efurlong@usgs.gov","orcid":"https://orcid.org/0000-0002-7305-4603","contributorId":740,"corporation":false,"usgs":true,"family":"Furlong","given":"Edward","email":"efurlong@usgs.gov","middleInitial":"T.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":567359,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kolpin, Dana W. 0000-0002-3529-6505 dwkolpin@usgs.gov","orcid":"https://orcid.org/0000-0002-3529-6505","contributorId":1239,"corporation":false,"usgs":true,"family":"Kolpin","given":"Dana","email":"dwkolpin@usgs.gov","middleInitial":"W.","affiliations":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true}],"preferred":true,"id":565255,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Halden, Rolf U.","contributorId":73865,"corporation":false,"usgs":true,"family":"Halden","given":"Rolf","email":"","middleInitial":"U.","affiliations":[],"preferred":false,"id":567360,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ]}