{"pageNumber":"741","pageRowStart":"18500","pageSize":"25","recordCount":68923,"records":[{"id":70033990,"text":"70033990 - 2011 - Formation dynamics of subsurface hydrocarbon intrusions following the Deepwater Horizon blowout","interactions":[],"lastModifiedDate":"2012-03-12T17:21:44","indexId":"70033990","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Formation dynamics of subsurface hydrocarbon intrusions following the Deepwater Horizon blowout","docAbstract":"Hydrocarbons released following the Deepwater Horizon (DH) blowout were found in deep, subsurface horizontal intrusions, yet there has been little discussion about how these intrusions formed. We have combined measured (or estimated) observations from the DH release with empirical relationships developed from previous lab experiments to identify the mechanisms responsible for intrusion formation and to characterize the DH plume. Results indicate that the intrusions originate from a stratification-dominated multiphase plume characterized by multiple subsurface intrusions containing dissolved gas and oil along with small droplets of liquid oil. Unlike earlier lab measurements, where the potential density in ambient water decreased linearly with elevation, at the DH site it varied quadratically. We have modified our method for estimating intrusion elevation under these conditions and the resulting estimates agree with observations that the majority of the hydrocarbons were found between 800 and 1200 m. Copyright ?? 2011 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2011GL047174","issn":"00948276","usgsCitation":"Socolofsky, S., Adams, E., and Sherwood, C.R., 2011, Formation dynamics of subsurface hydrocarbon intrusions following the Deepwater Horizon blowout: Geophysical Research Letters, v. 38, no. 9, https://doi.org/10.1029/2011GL047174.","costCenters":[],"links":[{"id":475440,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2011gl047174","text":"Publisher Index Page"},{"id":216682,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2011GL047174"},{"id":244567,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"38","issue":"9","noUsgsAuthors":false,"publicationDate":"2011-05-12","publicationStatus":"PW","scienceBaseUri":"505a134be4b0c8380cd545cd","contributors":{"authors":[{"text":"Socolofsky, S.A.","contributorId":59272,"corporation":false,"usgs":true,"family":"Socolofsky","given":"S.A.","affiliations":[],"preferred":false,"id":443540,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Adams, E.E.","contributorId":98903,"corporation":false,"usgs":true,"family":"Adams","given":"E.E.","email":"","affiliations":[],"preferred":false,"id":443541,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sherwood, C. R.","contributorId":48235,"corporation":false,"usgs":true,"family":"Sherwood","given":"C.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":443539,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035124,"text":"70035124 - 2011 - Potential for iron oxides to control metal releases in CO2 sequestration scenarios","interactions":[],"lastModifiedDate":"2021-03-01T19:19:59.943077","indexId":"70035124","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5215,"text":"Energy Procedia","onlineIssn":"1876-6102","active":true,"publicationSubtype":{"id":10}},"title":"Potential for iron oxides to control metal releases in CO2 sequestration scenarios","docAbstract":"<p><span>The potential for the release of metals into groundwater following the injection of carbon dioxide (CO</span><sub>2</sub><span>) into the subsurface during carbon sequestration projects remains an open research question. Changing the chemical composition of even the relatively deep formation brines during CO</span><sub>2</sub><span>&nbsp;injection and storage may be of concern because of the recognized risks associated with the limited potential for leakage of CO</span><sub>2</sub><span>-impacted brine to the surface. Geochemical modeling allows for proactive evaluation of site geochemistry before CO</span><sub>2</sub><span>&nbsp;injection takes place to predict whether the release of metals from iron oxides may occur in the reservoir. Geochemical modeling can also help evaluate potential changes in shallow aquifers were CO</span><sub>2</sub><span>&nbsp;leakage to occur near the surface. In this study, we created three batch-reaction models that simulate chemical changes in groundwater resulting from the introduction of CO</span><sub>2</sub><span>&nbsp;at two carbon sequestration sites operated by the Midwest Geological Sequestration Consortium (MGSC). In each of these models, we input the chemical composition of groundwater samples into React</span><sup>®</sup><span>, and equilibrated them with selected mineral phases and CO</span><sub>2</sub><span>&nbsp;at reservoir pressure and temperature. The model then simulated the kinetic reactions with other mineral phases over a period of up to 100 years. For two of the simulations, the water was also at equilibrium with iron oxide surface complexes. The first model simulated a recently completed enhanced oil recovery (EOR) project in south-central Illinois in which the MGSC injected into, and then produced CO</span><sub>2</sub><span>, from a sandstone oil reservoir. The MGSC afterwards periodically measured the brine chemistry from several wells in the reservoir for approximately two years. The sandstone contains a relatively small amount of iron oxide, and the batch simulation for the injection process showed detectable changes in several aqueous species that were attributable to changes in surface complexation sites. After using the batch reaction configuration to match measured geochemical changes due to CO</span><sub>2</sub><span>&nbsp;injection, we modeled potential changes in groundwater chemistry at the Illinois Basin–Decatur Project (IBDP) site in Decatur, Illinois, USA. At the IBDP, the MGSC will inject 1 million tonnes of CO</span><sub>2</sub><span>&nbsp;over the course of three years at a depth of about 2&nbsp;km below the surface into the Mt. Simon Formation. Sections of the Mt. Simon Formation contain up to 10 percent iron oxide, and therefore surface complexes on iron oxides should play a major role in controlling brine chemistry. The batch simulation of this system showed a significant decrease in pH after the injection of CO</span><sub>2</sub><span>&nbsp;with corresponding changes in brine chemistry resulting from both mineral precipitation/dissolution reactions and changes in the chemistry on iron oxide surfaces. To ensure the safety of shallow drinking water sources, there are several shallow monitoring wells at the IBDP that the MGSC samples regularly to determine baseline chemical concentrations. Knowing what geochemical parameters are most sensitive to CO</span><sub>2</sub><span>&nbsp;disturbances allows us to focus monitoring efforts. Modeling a major influx of CO</span><sub>2</sub><span>&nbsp;into the shallow groundwater allowed us to determine that were an introduction of CO</span><sub>2</sub><span>&nbsp;to occur, the only immediate effect will be dolomite dissolution and calcite precipitation.</span></p>","conferenceTitle":"10th International Conference on Greenhouse Gas Control Technologies","conferenceDate":"September 19-23, 2010","conferenceLocation":"Amsterdam","language":"English","publisher":"Elsevier","doi":"10.1016/j.egypro.2011.02.235","usgsCitation":"Berger, P., and Roy, W.R., 2011, Potential for iron oxides to control metal releases in CO2 sequestration scenarios: Energy Procedia, v. 4, p. 3195-3201, https://doi.org/10.1016/j.egypro.2011.02.235.","productDescription":"7 p.","startPage":"3195","endPage":"3201","costCenters":[],"links":[{"id":475170,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.egypro.2011.02.235","text":"Publisher Index Page"},{"id":243322,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215512,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.egypro.2011.02.235"}],"volume":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7f12e4b0c8380cd7a8d9","contributors":{"authors":[{"text":"Berger, P.M.","contributorId":70611,"corporation":false,"usgs":true,"family":"Berger","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":449397,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roy, William R.","contributorId":45454,"corporation":false,"usgs":true,"family":"Roy","given":"William","middleInitial":"R.","affiliations":[],"preferred":false,"id":449396,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70034333,"text":"70034333 - 2011 - Bed morphology, flow structure, and sediment transport at the outlet of Lake Huron and in the upper St. Clair River","interactions":[],"lastModifiedDate":"2021-04-22T16:16:43.801104","indexId":"70034333","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Bed morphology, flow structure, and sediment transport at the outlet of Lake Huron and in the upper St. Clair River","docAbstract":"<p><span>An integrated multibeam&nbsp;</span>echo sounder<span>&nbsp;and&nbsp;acoustic Doppler current profiler&nbsp;field survey was conducted in July 2008 to investigate the&nbsp;morphodynamics&nbsp;of the St. Clair River at the outlet of Lake Huron. The principal morphological features of the upper St. Clair River included flow-transverse&nbsp;bedforms&nbsp;that appear weakly mobile, erosive bedforms in cohesive muds, thin non-cohesive veneers of weakly mobile sediment that cover an underlying cohesive (till or glacio-lacustrine) surface, and vegetation that covers the bed. The flow was characterized by acceleration as the banks constrict from Lake Huron into the St. Clair River, an approximately 1500-m long region of&nbsp;flow separation&nbsp;downstream from the Blue Water Bridge, and secondary flow connected to: i) channel curvature; ii) forcing of the flow by local bed topography, and iii) flow wakes in the lee side of ship wrecks. Nearshore, sand-sized, sediment from Lake Huron was capable of being transported into, and principally along, the banks of the upper St. Clair River by the measured flow. A comparison of&nbsp;bathymetric surveys&nbsp;conducted in 2007 and 2008 identifies that the gravel bed does undergo slow downstream movement, but that this movement does not appear to be generated by the mean flow, and could possibly be caused by ship-propeller-induced turbulence. The study results suggest that the measured mean flow and dredging within the channel have not produced major scour of the upper St. Clair River and that the recent fall in the level of Lake Huron is unlikely to have been caused by these mechanisms.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jglr.2011.05.011","issn":"03801330","usgsCitation":"Czuba, J.A., Best, J., Oberg, K.A., Parsons, D., Jackson, P., Garcia, M., and Ashmore, P., 2011, Bed morphology, flow structure, and sediment transport at the outlet of Lake Huron and in the upper St. Clair River: Journal of Great Lakes Research, v. 37, no. 3, p. 480-493, https://doi.org/10.1016/j.jglr.2011.05.011.","productDescription":"14 p.","startPage":"480","endPage":"493","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":244850,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216948,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jglr.2011.05.011"}],"country":"United States","state":"Michigan","otherGeospatial":"St. Clair River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -82.6556396484375,\n              42.791369723650135\n            ],\n            [\n              -82.19970703125,\n              42.791369723650135\n            ],\n            [\n              -82.19970703125,\n              43.141078106345866\n            ],\n            [\n              -82.6556396484375,\n              43.141078106345866\n            ],\n            [\n              -82.6556396484375,\n              42.791369723650135\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"37","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f03be4b0c8380cd4a67b","contributors":{"authors":[{"text":"Czuba, J. A.","contributorId":98036,"corporation":false,"usgs":true,"family":"Czuba","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":445276,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Best, J.L.","contributorId":49635,"corporation":false,"usgs":true,"family":"Best","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":445272,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Oberg, K. A.","contributorId":67553,"corporation":false,"usgs":true,"family":"Oberg","given":"K.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":445273,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Parsons, D.R.","contributorId":84322,"corporation":false,"usgs":true,"family":"Parsons","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":445275,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jackson, P.R.","contributorId":68552,"corporation":false,"usgs":true,"family":"Jackson","given":"P.R.","email":"","affiliations":[],"preferred":false,"id":445274,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Garcia, M.H.","contributorId":45079,"corporation":false,"usgs":true,"family":"Garcia","given":"M.H.","email":"","affiliations":[],"preferred":false,"id":445271,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ashmore, P.","contributorId":102300,"corporation":false,"usgs":true,"family":"Ashmore","given":"P.","email":"","affiliations":[],"preferred":false,"id":445277,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70034129,"text":"70034129 - 2011 - Geochemical heterogeneity in a small, stratigraphically complex moraine aquifer system (Ontario, Canada): Interpretation of flow and recharge using multiple geochemical parameters","interactions":[],"lastModifiedDate":"2026-01-28T14:29:34.295182","indexId":"70034129","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Geochemical heterogeneity in a small, stratigraphically complex moraine aquifer system (Ontario, Canada): Interpretation of flow and recharge using multiple geochemical parameters","docAbstract":"<p><span>The Waterloo Moraine is a stratigraphically complex system and is the major water supply to the cities of Kitchener and Waterloo in Ontario, Canada. Despite over 30&nbsp;years of investigation, no attempt has been made to unify existing geochemical data into a single database. A composite view of the moraine geochemistry has been created using the available geochemical information, and a framework created for geochemical data synthesis of other similar flow systems. Regionally, fluid chemistry is highly heterogeneous, with large variations in both water type and total dissolved solids content. Locally, upper aquifer units are affected by nitrate and chloride from fertilizer and road salt. Typical upper-aquifer fluid chemistry is dominated by calcium, magnesium, and bicarbonate, a result of calcite and dolomite dissolution. Evidence also suggests that ion exchange and diffusion from tills and bedrock units accounts for some elevated sodium concentrations. Locally, hydraulic “windows” cross connect upper and lower aquifer units, which are typically separated by a clay till. Lower aquifer units are also affected by dedolomitization, mixing with bedrock water, and locally, upward diffusion of solutes from the bedrock aquifers. A map of areas where aquifer units are geochemically similar was constructed to highlight areas with potential hydraulic windows.</span></p>","language":"English, French","doi":"10.1007/s10040-010-0628-7","issn":"14312174","usgsCitation":"Stotler, R., Frape, S., El Mugammar, H., Johnston, C., Judd-Henrey, I., Harvey, F., Drimmie, R., and Jones, J., 2011, Geochemical heterogeneity in a small, stratigraphically complex moraine aquifer system (Ontario, Canada): Interpretation of flow and recharge using multiple geochemical parameters: Hydrogeology Journal, v. 19, no. 1, p. 101-115, https://doi.org/10.1007/s10040-010-0628-7.","productDescription":"15 p.","startPage":"101","endPage":"115","numberOfPages":"15","costCenters":[],"links":[{"id":244770,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"1","noUsgsAuthors":false,"publicationDate":"2010-07-07","publicationStatus":"PW","scienceBaseUri":"505a1641e4b0c8380cd550ea","contributors":{"authors":[{"text":"Stotler, R.L.","contributorId":39596,"corporation":false,"usgs":true,"family":"Stotler","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":444234,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Frape, S.K.","contributorId":105335,"corporation":false,"usgs":true,"family":"Frape","given":"S.K.","affiliations":[],"preferred":false,"id":444239,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"El Mugammar, H.T.","contributorId":84191,"corporation":false,"usgs":true,"family":"El Mugammar","given":"H.T.","email":"","affiliations":[],"preferred":false,"id":444236,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johnston, C.","contributorId":92892,"corporation":false,"usgs":true,"family":"Johnston","given":"C.","email":"","affiliations":[],"preferred":false,"id":444237,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Judd-Henrey, I.","contributorId":28457,"corporation":false,"usgs":true,"family":"Judd-Henrey","given":"I.","email":"","affiliations":[],"preferred":false,"id":444233,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Harvey, F.E.","contributorId":46161,"corporation":false,"usgs":true,"family":"Harvey","given":"F.E.","email":"","affiliations":[],"preferred":false,"id":444235,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Drimmie, R.","contributorId":16679,"corporation":false,"usgs":true,"family":"Drimmie","given":"R.","affiliations":[],"preferred":false,"id":444232,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Jones, J.P.","contributorId":101093,"corporation":false,"usgs":true,"family":"Jones","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":444238,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70032419,"text":"70032419 - 2011 - Simulating the potential effects of climate change in two Colorado basins and at two Colorado ski areas","interactions":[],"lastModifiedDate":"2020-01-28T15:31:02","indexId":"70032419","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1421,"text":"Earth Interactions","active":true,"publicationSubtype":{"id":10}},"title":"Simulating the potential effects of climate change in two Colorado basins and at two Colorado ski areas","docAbstract":"<p>The mountainous areas of Colorado are used for tourism and recreation, and they provide water storage and supply for municipalities, industries, and agriculture. Recent studies suggest that water supply and tourist industries such as skiing are at risk from climate change. In this study, a distributed-parameter watershed model, the Precipitation-Runoff Modeling System (PRMS), is used to identify the potential effects of future climate on hydrologic conditions for two Colorado basins, the East River at Almont and the Yampa River at Steamboat Springs, and at the subbasin scale for two ski areas within those basins.</p><p>Climate-change input files for PRMS were generated by modifying daily PRMS precipitation and temperature inputs with mean monthly climate-change fields of precipitation and temperature derived from five general circulation model (GCM) simulations using one current and three future carbon emission scenarios. All GCM simulations of mean daily minimum and maximum air temperature for the East and Yampa River basins indicate a relatively steady increase of up to several degrees Celsius from baseline conditions by 2094. GCM simulations of precipitation in the two basins indicate little change or trend in precipitation, but there is a large range associated with these projections. PRMS projections of basin mean daily streamflow vary by scenario but indicate a central tendency toward slight decreases, with a large range associated with these projections.</p><p>Decreases in water content or changes in the spatial extent of snowpack in the East and Yampa River basins are important because of potential adverse effects on water supply and recreational activities. PRMS projections of each future scenario indicate a central tendency for decreases in basin mean snow-covered area and snowpack water equivalent, with the range in the projected decreases increasing with time. However, when examined on a monthly basis, the projected decreases are most dramatic during fall and spring. Presumably, ski area locations are picked because of a tendency to receive snow and keep snowpack relative to the surrounding area. This effect of ski area location within the basin was examined by comparing projections of March snow-covered area and snowpack water equivalent for the entire basin with more local projections for the portion of the basin that represents the ski area in the PRMS models. These projections indicate a steady decrease in March snow-covered area for the basins but only small changes in March snow-covered area at both ski areas for the three future scenarios until around 2050. After 2050, larger decreases are possible, but there is a large range in the projections of future scenarios. The rates of decrease for snowpack water equivalent and precipitation that falls as snow are similar at the basin and subbasin scale in both basins. Results from this modeling effort show that there is a wide range of possible outcomes for future snowpack conditions in Colorado. The results also highlight the differences between projections for entire basins and projections for local areas or subbasins within those basins.</p>","language":"English","publisher":"American Meteorological Society","doi":"10.1175/2011EI373.1","usgsCitation":"Battaglin, W., Hay, L.E., and Markstrom, S., 2011, Simulating the potential effects of climate change in two Colorado basins and at two Colorado ski areas: Earth Interactions, v. 15, no. 22, p. 1-23, https://doi.org/10.1175/2011EI373.1.","productDescription":"23 p.","startPage":"1","endPage":"23","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":475226,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1175/2011ei373.1","text":"Publisher Index 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,{"id":70046457,"text":"70046457 - 2011 - Applications of selective ion exchange for perchlorate removal, recovery, and environmental forensics","interactions":[],"lastModifiedDate":"2017-06-05T13:07:10","indexId":"70046457","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Applications of selective ion exchange for perchlorate removal, recovery, and environmental forensics","docAbstract":"Perchlorate (ClO4-) is a widespread contaminant found in drinking water and groundwater that has caused far-reaching ramifications ranging from public health issues to potential liabilities arising from environmental clean-up requirements.\nThe chapter summarizes recent developments in highly selective and regenerable ion exchange technologies for removing ClO4- from contaminated water. The technologies rely on a unique, highly specific resin to trap ClO4-. The resin is then\nregenerated and ClO4- is either destroyed or recovered—leading to significant cost reduction and waste minimization. The ability to recover trace quantities of pure ClO4- from contaminated media also allows unambiguous identification of the\nsources of its contamination through stable isotope ratio analysis of chlorine and oxygen atoms. We provide detailed descriptions of the techniques for extracting, purifying, and crystallizing trade amounts of ClO4- and characterizing its isotopic\ncomposition for fingerprinting in the environment.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Ion exchange and solvent extraction: A series of advances, Volume 20","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"CRC Press","isbn":"9781439855393","usgsCitation":"Gu, B., Bohlke, J., Sturchio, N.C., Hatzinger, P., Jackson, A., Beloso, A.D., Heraty, L.J., Bian, Y., Jiang, X., and Brown, G.M., 2011, Applications of selective ion exchange for perchlorate removal, recovery, and environmental forensics, chap. <i>of</i> Ion exchange and solvent extraction: A series of advances, Volume 20, p. 117-144.","productDescription":"28 p.","startPage":"117","endPage":"144","ipdsId":"IP-017595","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":342098,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":342097,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.crcpress.com/Ion-Exchange-and-Solvent-Extraction-A-Series-of-Advances-Volume-20/SenGupta/p/book/9781439855393"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59366dade4b0f6c2d0d7d64c","contributors":{"editors":[{"text":"SenGupta, Arup K.","contributorId":192624,"corporation":false,"usgs":false,"family":"SenGupta","given":"Arup","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":697102,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Gu, Baohua","contributorId":15504,"corporation":false,"usgs":true,"family":"Gu","given":"Baohua","affiliations":[],"preferred":false,"id":697092,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bohlke, J.K. 0000-0001-5693-6455 jkbohlke@usgs.gov","orcid":"https://orcid.org/0000-0001-5693-6455","contributorId":191103,"corporation":false,"usgs":true,"family":"Bohlke","given":"J.K.","email":"jkbohlke@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true}],"preferred":true,"id":697093,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sturchio, Neil C.","contributorId":149375,"corporation":false,"usgs":false,"family":"Sturchio","given":"Neil","email":"","middleInitial":"C.","affiliations":[{"id":15289,"text":"University of Illinois, Ven Te Chow Hydrosystems Laboratory","active":true,"usgs":false}],"preferred":false,"id":697094,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hatzinger, Paul B.","contributorId":43204,"corporation":false,"usgs":true,"family":"Hatzinger","given":"Paul B.","affiliations":[],"preferred":false,"id":697095,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jackson, Andrew","contributorId":176588,"corporation":false,"usgs":false,"family":"Jackson","given":"Andrew","email":"","affiliations":[],"preferred":false,"id":697096,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Beloso, Abelardo D. Jr.","contributorId":15016,"corporation":false,"usgs":true,"family":"Beloso","given":"Abelardo","suffix":"Jr.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":697097,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Heraty, Linnea J.","contributorId":192520,"corporation":false,"usgs":false,"family":"Heraty","given":"Linnea","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":697098,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Bian, Yongrong","contributorId":192621,"corporation":false,"usgs":false,"family":"Bian","given":"Yongrong","email":"","affiliations":[],"preferred":false,"id":697099,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Jiang, Xin","contributorId":192622,"corporation":false,"usgs":false,"family":"Jiang","given":"Xin","email":"","affiliations":[],"preferred":false,"id":697100,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Brown, Gilbert M.","contributorId":192623,"corporation":false,"usgs":false,"family":"Brown","given":"Gilbert","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":697101,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70033792,"text":"70033792 - 2011 - Factors affecting winter survival of female mallards in the lower Mississippi alluvial valley","interactions":[],"lastModifiedDate":"2017-05-03T13:15:18","indexId":"70033792","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3731,"text":"Waterbirds","onlineIssn":"19385390","printIssn":"15244695","active":true,"publicationSubtype":{"id":10}},"title":"Factors affecting winter survival of female mallards in the lower Mississippi alluvial valley","docAbstract":"The lower Mississippi Alluvial Valley (hereafter LMAV) provides winter habitat for approximately 40% of the Mississippi Flyway's Mallard (Anas platyrhynhcos) population; information on winter survival rates of female Mallards in the LMAV is restricted to data collected prior to implementation of the North American Waterfowl Management Plan. To estimate recent survival and cause-specific mortality rates in the LMAV, 174 radio-marked female Mallards were tracked for a total of 11,912 exposure days. Survival varied by time periods defined by hunting seasons, and females with lower body condition (size adjusted body mass) at time of capture had reduced probability of survival. Female survival was less and the duration of our tracking period was greater than those in previous studies of similarly marked females in the LMAV; the product-limit survival estimate (??????SE) through the entire tracking period (136 days) was 0.54 ??0.10. Cause-specific mortality rates were 0.18 ??0.04 and 0.34 ??0.12 for hunting and other sources of mortality, respectively; the estimated mortality rate from other sources (including those from avian, mammalian, or unknown sources) was higher than mortality from non-hunting sources reported in previous studies of Mallards in the LMAV. Models that incorporate winter survival estimates as a factor in Mallard population growth rates should be adjusted for these reduced winter survival estimates.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/063.034.0207","issn":"15244695","usgsCitation":"Davis, B., Afton, A., and Cox, R.R., 2011, Factors affecting winter survival of female mallards in the lower Mississippi alluvial valley: Waterbirds, v. 34, no. 2, p. 186-194, https://doi.org/10.1675/063.034.0207.","startPage":"186","endPage":"194","numberOfPages":"9","ipdsId":"IP-016394","costCenters":[],"links":[{"id":241840,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214146,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/063.034.0207"}],"volume":"34","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0eb0e4b0c8380cd5358c","contributors":{"authors":[{"text":"Davis, B.E.","contributorId":101467,"corporation":false,"usgs":true,"family":"Davis","given":"B.E.","email":"","affiliations":[],"preferred":false,"id":442498,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Afton, A. D.","contributorId":83467,"corporation":false,"usgs":true,"family":"Afton","given":"A. D.","affiliations":[],"preferred":false,"id":442497,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cox, R. R. Jr.","contributorId":57006,"corporation":false,"usgs":true,"family":"Cox","given":"R.","suffix":"Jr.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":442496,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70032546,"text":"70032546 - 2011 - Nest success of snowy plovers (Charadrius nivosus) in the Southern high plains of Texas","interactions":[],"lastModifiedDate":"2012-03-12T17:21:21","indexId":"70032546","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3731,"text":"Waterbirds","onlineIssn":"19385390","printIssn":"15244695","active":true,"publicationSubtype":{"id":10}},"title":"Nest success of snowy plovers (Charadrius nivosus) in the Southern high plains of Texas","docAbstract":"Snowy Plovers (Charadrius nivosus) nesting on edges of saline lakes within the Southern High Plains (SHP) of Texas are threatened by habitat degradation due to reduced artesian spring flow, making many saline lakes unsuitable for nesting and migrating shorebirds. Factors influencing nest success were evaluated, current nest success estimates in the SHP of Texas were compared to estimates obtained ten years prior, and causes and timing of nest failures determined. Overall, 215 nests were monitored from three saline lakes in 20082009, with nest success estimates from Program MARK ranging from 7-33% ( x??= 22%). The leading causes of nest failures were attributed to predation (40%) and weather (36%). Nest success was negatively influenced by number of plants within 707-cm  2 plot, positively influenced by percent surface water availability, and at one saline lake, negatively influenced by day during the nesting season (i.e., nest success declined later in the nesting season). When compared to estimates ten years prior (19981999), mean nest success has declined by 31%. If nesting Snowy Plovers continue to experience increased predation rates, decreased hydrological integrity, and habitat alterations, populations will continue to decline throughout this region.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/063.034.0401","issn":"15244695","usgsCitation":"Saalfeld, S., Conway, W.C., Haukos, D., and Johnson, W., 2011, Nest success of snowy plovers (Charadrius nivosus) in the Southern high plains of Texas: Waterbirds, v. 34, no. 4, p. 389-399, https://doi.org/10.1675/063.034.0401.","startPage":"389","endPage":"399","numberOfPages":"11","costCenters":[],"links":[{"id":213666,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/063.034.0401"},{"id":241315,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6489e4b0c8380cd729fe","contributors":{"authors":[{"text":"Saalfeld, S.T.","contributorId":107108,"corporation":false,"usgs":true,"family":"Saalfeld","given":"S.T.","email":"","affiliations":[],"preferred":false,"id":436753,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Conway, Warren C.","contributorId":51550,"corporation":false,"usgs":true,"family":"Conway","given":"Warren","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":436752,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haukos, D.A.","contributorId":17188,"corporation":false,"usgs":true,"family":"Haukos","given":"D.A.","affiliations":[],"preferred":false,"id":436750,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johnson, W.P.","contributorId":43315,"corporation":false,"usgs":true,"family":"Johnson","given":"W.P.","email":"","affiliations":[],"preferred":false,"id":436751,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70034271,"text":"70034271 - 2011 - Peat Formation Processes Through the Millennia in Tidal Marshes of the Sacramento-San Joaquin Delta, California, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:45","indexId":"70034271","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1584,"text":"Estuaries and Coasts","active":true,"publicationSubtype":{"id":10}},"title":"Peat Formation Processes Through the Millennia in Tidal Marshes of the Sacramento-San Joaquin Delta, California, USA","docAbstract":"The purpose of this study was to determine peat formation processes throughout the millennia in four tidal marshes in the Sacramento-San Joaquin Delta. Peat cores collected at each site were analyzed for bulk density, loss on ignition, and percent organic carbon. Core data and spline fit age-depth models were used to estimate inorganic sedimentation, organic accumulation, and carbon sequestration rates in the marshes. Bulk density and percent organic matter content of peat fluctuated through time at all sites, suggesting that peat formation processes are dynamic and responsive to watershed conditions. The balance between inorganic sedimentation and organic accumulation at the sites also varied through time, indicating that marshes may rely more strongly on either inorganic or organic matter for peat formation at particular times in their existence. Mean carbon sequestration rates found in this study (0. 38-0. 79 Mg C ha-1 year-1) were similar to other long-term estimates for temperate peatlands. ?? 2011 Coastal and Estuarine Research Federation (outside the USA).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Estuaries and Coasts","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s12237-011-9393-7","issn":"15592723","usgsCitation":"Drexler, J., 2011, Peat Formation Processes Through the Millennia in Tidal Marshes of the Sacramento-San Joaquin Delta, California, USA: Estuaries and Coasts, v. 34, no. 5, p. 900-911, https://doi.org/10.1007/s12237-011-9393-7.","startPage":"900","endPage":"911","numberOfPages":"12","costCenters":[],"links":[{"id":244877,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216972,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s12237-011-9393-7"}],"volume":"34","issue":"5","noUsgsAuthors":false,"publicationDate":"2011-03-24","publicationStatus":"PW","scienceBaseUri":"505a761ae4b0c8380cd77f0c","contributors":{"authors":[{"text":"Drexler, J.Z. 0000-0002-0127-3866","orcid":"https://orcid.org/0000-0002-0127-3866","contributorId":54766,"corporation":false,"usgs":true,"family":"Drexler","given":"J.Z.","affiliations":[],"preferred":false,"id":445018,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70032444,"text":"70032444 - 2011 - An open-water electrical geophysical tool for mapping sub-seafloor heavy placer minerals in 3D and migrating hydrocarbon plumes in 4D","interactions":[],"lastModifiedDate":"2012-03-12T17:21:20","indexId":"70032444","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"An open-water electrical geophysical tool for mapping sub-seafloor heavy placer minerals in 3D and migrating hydrocarbon plumes in 4D","docAbstract":"A towed-streamer technology has been developed for mapping placer heavy minerals and dispersed hydrocarbon plumes in the open ocean. The approach uses induced polarization (IP), an electrical measurement that encompasses several different surface-reactive capacitive and electrochemical phenomena, and thus is ideally suited for mapping dispersed or disseminated targets. The application is operated at sea by towing active electrical geophysical streamers behind a ship; a wide area can be covered in three dimensions by folding tow-paths over each other in lawn-mower fashion. This technology has already been proven in laboratory and ocean settings to detect IP-reactive titanium-and rare-earth (REE) minerals such as ilmenite and monazite. By extension, minerals that weather and accumulate/concentrate by a similar mechanism, including gold, platinum, and diamonds, may be rapidly detected and mapped indirectly even when dispersed and covered with thick, inert sediment. IP is also highly reactive to metal structures such as pipelines and cables. ?? 2011 MTS.","largerWorkTitle":"OCEANS'11 - MTS/IEEE Kona, Program Book","conferenceTitle":"MTS/IEEE Kona Conference, OCEANS'11","conferenceDate":"19 September 2011 through 22 September 2011","conferenceLocation":"Kona, HI","language":"English","isbn":"9781457714276","usgsCitation":"Wynn, J., Williamson, M., Urquhart, S., and Fleming, J., 2011, An open-water electrical geophysical tool for mapping sub-seafloor heavy placer minerals in 3D and migrating hydrocarbon plumes in 4D, <i>in</i> OCEANS'11 - MTS/IEEE Kona, Program Book, Kona, HI, 19 September 2011 through 22 September 2011.","costCenters":[],"links":[{"id":241340,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059eaa2e4b0c8380cd489a9","contributors":{"authors":[{"text":"Wynn, J.","contributorId":27227,"corporation":false,"usgs":true,"family":"Wynn","given":"J.","affiliations":[],"preferred":false,"id":436217,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williamson, M.","contributorId":43181,"corporation":false,"usgs":true,"family":"Williamson","given":"M.","email":"","affiliations":[],"preferred":false,"id":436219,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Urquhart, S.","contributorId":80497,"corporation":false,"usgs":true,"family":"Urquhart","given":"S.","email":"","affiliations":[],"preferred":false,"id":436220,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fleming, J.","contributorId":31973,"corporation":false,"usgs":true,"family":"Fleming","given":"J.","email":"","affiliations":[],"preferred":false,"id":436218,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70034268,"text":"70034268 - 2011 - Challenges of using electrical resistivity method to locate karst conduits-A field case in the Inner Bluegrass Region, Kentucky","interactions":[],"lastModifiedDate":"2012-03-12T17:21:45","indexId":"70034268","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2165,"text":"Journal of Applied Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Challenges of using electrical resistivity method to locate karst conduits-A field case in the Inner Bluegrass Region, Kentucky","docAbstract":"Conduits serve as major pathways for groundwater flow in karst aquifers. Locating them from the surface, however, is one of the most challenging tasks in karst research. Geophysical methods are often deployed to help locate voids by mapping variations of physical properties of the subsurface. Conduits can cause significant contrasts of some physical properties that can be detected; other subsurface features such as water-bearing fractures often yield similar contrasts, which are difficult to distinguish from the effects of the conduits. This study used electrical resistivity method to search for an unmapped karst conduit that recharges Royal Spring in the Inner Bluegrass karst region, Kentucky, USA. Three types of resistivity techniques (surface 2D survey, quasi-3D survey, and time-lapse survey) were used to map and characterize resistivity anomalies. Some of the major anomalies were selected as drilling targets to verify the existence of the conduits. Drilling near an anomaly identified by an electrical resistivity profile resulted in successful penetration of a major water-filled conduit. The drilling results also suggest that, in this study area, low resistivity anomalies in general are associated with water-bearing features. However, differences in the anomaly signals between the water-filled conduit and other water-bearing features such as water-filled fracture zones were undistinguishable. The electrical resistivity method is useful in conduit detection by providing potential drilling targets. Knowledge of geology and hydrogeology about the site and professional judgment also played important roles in locating the major conduit. ?? 2011 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Applied Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jappgeo.2011.08.009","issn":"09269851","usgsCitation":"Zhu, J., Currens, J., and Dinger, J., 2011, Challenges of using electrical resistivity method to locate karst conduits-A field case in the Inner Bluegrass Region, Kentucky: Journal of Applied Geophysics, v. 75, no. 3, p. 523-530, https://doi.org/10.1016/j.jappgeo.2011.08.009.","startPage":"523","endPage":"530","numberOfPages":"8","costCenters":[],"links":[{"id":244813,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216912,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jappgeo.2011.08.009"}],"volume":"75","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f3fce4b0c8380cd4ba82","contributors":{"authors":[{"text":"Zhu, J.","contributorId":6289,"corporation":false,"usgs":true,"family":"Zhu","given":"J.","email":"","affiliations":[],"preferred":false,"id":445001,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Currens, J.C.","contributorId":72036,"corporation":false,"usgs":true,"family":"Currens","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":445003,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dinger, J.S.","contributorId":64416,"corporation":false,"usgs":true,"family":"Dinger","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":445002,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70032452,"text":"70032452 - 2011 - Ratios of total suspended solids to suspended sediment concentrations by particle size","interactions":[],"lastModifiedDate":"2012-03-12T17:21:21","indexId":"70032452","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2255,"text":"Journal of Environmental Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Ratios of total suspended solids to suspended sediment concentrations by particle size","docAbstract":"Wet-sieving sand-sized particles from a whole storm-water sample before splitting the sample into laboratory-prepared containers can reduce bias and improve the precision of suspended-sediment concentrations (SSC). Wet-sieving, however, may alter concentrations of total suspended solids (TSS) because the analytical method used to determine TSS may not have included the sediment retained on the sieves. Measuring TSS is still commonly used by environmental managers as a regulatory metric for solids in storm water. For this reason, a new method of correlating concentrations of TSS and SSC by particle size was used to develop a series of correction factors for SSC as a means to estimate TSS. In general, differences between TSS and SSC increased with greater particle size and higher sand content. Median correction factors to SSC ranged from 0.29 for particles larger than 500m to 0.85 for particles measuring from 32 to 63m. Great variability was observed in each fraction-a result of varying amounts of organic matter in the samples. Wide variability in organic content could reduce the transferability of the correction factors. ?? 2011 American Society of Civil Engineers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Environmental Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1061/(ASCE)EE.1943-7870.0000414","issn":"07339372","usgsCitation":"Selbig, W., and Bannerman, R., 2011, Ratios of total suspended solids to suspended sediment concentrations by particle size: Journal of Environmental Engineering, v. 137, no. 11, p. 1075-1081, https://doi.org/10.1061/(ASCE)EE.1943-7870.0000414.","startPage":"1075","endPage":"1081","numberOfPages":"7","costCenters":[],"links":[{"id":213785,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/(ASCE)EE.1943-7870.0000414"},{"id":241443,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"137","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9553e4b0c8380cd8194d","contributors":{"authors":[{"text":"Selbig, W.R.","contributorId":102106,"corporation":false,"usgs":true,"family":"Selbig","given":"W.R.","email":"","affiliations":[],"preferred":false,"id":436246,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bannerman, R.T.","contributorId":92304,"corporation":false,"usgs":false,"family":"Bannerman","given":"R.T.","email":"","affiliations":[{"id":6913,"text":"Wisconsin Department of Natural Resources","active":true,"usgs":false}],"preferred":false,"id":436245,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70193758,"text":"70193758 - 2011 - Assessing field-scale biogeophysical signatures of bioremediation over a mature crude oil spill","interactions":[],"lastModifiedDate":"2019-10-24T14:55:06","indexId":"70193758","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"chapter":"B-9","title":"Assessing field-scale biogeophysical signatures of bioremediation over a mature crude oil spill","docAbstract":"<p>We conducted electrical geophysical measurements at the National Crude Oil Spill Fate and Natural Attenuation Research Site (Bemidji, MN). Borehole and surface self-potential measurements do not show evidence for the existence of a biogeobattery mechanism in response to the redox gradient resulting from biodegradation of oil. The relatively small self potentials recorded are instead consistent with an electrodiffusion mechanism driven by differences in the mobility of charge carriers associated with biodegradation byproducts. Complex resistivity measurements reveal elevated electrical conductivity and interfacial polarization at the water table where oil contamination is present, extending into the unsaturated zone. This finding implies that the effect of microbial cell growth/attachment, biofilm formation, and mineral weathering accompanying hydrocarbon biodegradation on complex interfacial conductivity imparts a sufficiently large electrical signal to be measured using field-scale geophysical techniques.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the first international symposium on bioremediation and sustainable environmental technologies","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"First international symposium on bioremediation and sustainable environmental technologies","conferenceDate":"June 27-30, 2011","conferenceLocation":"Reno, NV","language":"English","publisher":"Battelle Memorial Institute","publisherLocation":"Columbus, OH","isbn":"978-0-9819730-4-3","usgsCitation":"Slater, L., Ntarlagiannis, D., Atekwana, E., Mewafy, F., Revil, A., Skold, M., Gorby, Y., Day-Lewis, F.D., Lane, J.W., Trost, J.J., Werkema, D.D., Delin, G.N., and Herkelrath, W.N., 2011, Assessing field-scale biogeophysical signatures of bioremediation over a mature crude oil spill, <i>in</i> Proceedings of the first international symposium on bioremediation and sustainable environmental technologies, Reno, NV, June 27-30, 2011, 9 p.","productDescription":"9 p.","ipdsId":"IP-029602","costCenters":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":350357,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":350356,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.battelle.org/conference-proceedings/conference-proceedings"}],"country":"United States","state":"Minnesota","city":"Bemidji","otherGeospatial":"National Crude Oil Spill Fate and Natural Attenuation Research 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H.V.","contributorId":14189,"corporation":false,"usgs":true,"family":"Rectanus","given":"H.V.","affiliations":[],"preferred":false,"id":725442,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Sirabian, R.","contributorId":6991,"corporation":false,"usgs":false,"family":"Sirabian","given":"R.","email":"","affiliations":[],"preferred":false,"id":725443,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Slater, Lee","contributorId":55707,"corporation":false,"usgs":false,"family":"Slater","given":"Lee","affiliations":[{"id":12727,"text":"Rutgers University","active":true,"usgs":false}],"preferred":false,"id":720265,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ntarlagiannis, Dimitrios","contributorId":150729,"corporation":false,"usgs":false,"family":"Ntarlagiannis","given":"Dimitrios","affiliations":[{"id":12727,"text":"Rutgers University","active":true,"usgs":false}],"preferred":false,"id":720268,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Atekwana, Estella","contributorId":197899,"corporation":false,"usgs":false,"family":"Atekwana","given":"Estella","affiliations":[],"preferred":false,"id":720267,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mewafy, Farag","contributorId":150731,"corporation":false,"usgs":false,"family":"Mewafy","given":"Farag","email":"","affiliations":[{"id":7249,"text":"Oklahoma State University","active":true,"usgs":false}],"preferred":false,"id":720266,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Revil, Andre","contributorId":117980,"corporation":false,"usgs":true,"family":"Revil","given":"Andre","affiliations":[],"preferred":false,"id":720269,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Skold, Magnus","contributorId":145461,"corporation":false,"usgs":false,"family":"Skold","given":"Magnus","email":"","affiliations":[],"preferred":false,"id":725435,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gorby, Yuri","contributorId":149870,"corporation":false,"usgs":false,"family":"Gorby","given":"Yuri","email":"","affiliations":[{"id":590,"text":"U.S. Army Corps of Engineers","active":false,"usgs":false}],"preferred":false,"id":725436,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Day-Lewis, Frederick D. 0000-0003-3526-886X daylewis@usgs.gov","orcid":"https://orcid.org/0000-0003-3526-886X","contributorId":1672,"corporation":false,"usgs":true,"family":"Day-Lewis","given":"Frederick","email":"daylewis@usgs.gov","middleInitial":"D.","affiliations":[{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true}],"preferred":true,"id":725437,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Lane, John W. Jr. jwlane@usgs.gov","contributorId":1738,"corporation":false,"usgs":true,"family":"Lane","given":"John","suffix":"Jr.","email":"jwlane@usgs.gov","middleInitial":"W.","affiliations":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true}],"preferred":false,"id":725438,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Werkema, Dale D.","contributorId":40488,"corporation":false,"usgs":false,"family":"Werkema","given":"Dale","email":"","middleInitial":"D.","affiliations":[{"id":6914,"text":"U.S. Environmental Protection Agency","active":true,"usgs":false}],"preferred":false,"id":720274,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Trost, Jared J. 0000-0003-0431-2151 jtrost@usgs.gov","orcid":"https://orcid.org/0000-0003-0431-2151","contributorId":3749,"corporation":false,"usgs":true,"family":"Trost","given":"Jared","email":"jtrost@usgs.gov","middleInitial":"J.","affiliations":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true},{"id":37947,"text":"Upper Midwest Water Science Center","active":true,"usgs":true}],"preferred":true,"id":725439,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Delin, Geoffrey N. 0000-0001-7991-6158 delin@usgs.gov","orcid":"https://orcid.org/0000-0001-7991-6158","contributorId":2610,"corporation":false,"usgs":true,"family":"Delin","given":"Geoffrey","email":"delin@usgs.gov","middleInitial":"N.","affiliations":[{"id":5063,"text":"Central Water Science Field Team","active":true,"usgs":true}],"preferred":true,"id":725440,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Herkelrath, William N. 0000-0002-6149-5524 wnherkel@usgs.gov","orcid":"https://orcid.org/0000-0002-6149-5524","contributorId":2612,"corporation":false,"usgs":true,"family":"Herkelrath","given":"William","email":"wnherkel@usgs.gov","middleInitial":"N.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":725441,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}}
,{"id":70178330,"text":"70178330 - 2011 - The need to consider temporal variability when modelling exchange at the sediment-water interface","interactions":[],"lastModifiedDate":"2016-12-20T13:41:19","indexId":"70178330","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"The need to consider temporal variability when modelling exchange at the sediment-water interface","docAbstract":"Most conceptual or numerical models of flows and processes at the sediment-water interface assume steady-state conditions and do not consider temporal variability. The steady-state assumption is required because temporal variability, if quantified at all, is usually determined on a seasonal or inter-annual scale. In order to design models that can incorporate finer-scale temporal resolution we first need to measure variability at a finer scale. Automated seepage meters that can measure flow across the sediment-water interface with temporal resolution of seconds to minutes were used in a variety of settings to characterize seepage response to rainfall, wind, and evapotranspiration. Results indicate that instantaneous seepage fluxes can be much larger than values commonly reported in the literature, although seepage does not always respond to hydrological processes. Additional study is needed to understand the reasons for the wide range and types of responses to these hydrologic and atmospheric events.","largerWorkType":{"id":24,"text":"Conference Paper"},"largerWorkTitle":"Conceptual and modelling studies of integrated groundwater, surface water, and ecological systems ","conferenceTitle":"Symposium H01 ","conferenceDate":"July 2011","conferenceLocation":"Melbourne, Australia","language":"English","publisher":"International Association of Hydrological Sciences ","usgsCitation":"Rosenberry, D.O., 2011, The need to consider temporal variability when modelling exchange at the sediment-water interface, <i>in</i> Conceptual and modelling studies of integrated groundwater, surface water, and ecological systems , v. 345, Melbourne, Australia, July 2011, p. 3-9.","productDescription":"7 p. ","startPage":"3","endPage":"9","ipdsId":"IP-026656","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":332344,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"345","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"585a51c3e4b01224f329b601","contributors":{"authors":[{"text":"Rosenberry, Donald O. 0000-0003-0681-5641 rosenber@usgs.gov","orcid":"https://orcid.org/0000-0003-0681-5641","contributorId":1312,"corporation":false,"usgs":true,"family":"Rosenberry","given":"Donald","email":"rosenber@usgs.gov","middleInitial":"O.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":653610,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70036698,"text":"70036698 - 2011 - Chromium(VI) generation in vadose zone soils and alluvial sediments of the southwestern Sacramento Valley, California: a potential source of geogenic Cr(VI) to groundwater","interactions":[],"lastModifiedDate":"2013-04-02T11:28:31","indexId":"70036698","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Chromium(VI) generation in vadose zone soils and alluvial sediments of the southwestern Sacramento Valley, California: a potential source of geogenic Cr(VI) to groundwater","docAbstract":"Concentrations of geogenic Cr(VI) in groundwater that exceed the World Health Organization’s maximum contaminant level for drinking water (50 μg L<sup>−1</sup>) occur in several locations globally. The major mechanism for mobilization of this Cr(VI) at these sites is the weathering of Cr(III) from ultramafic rocks and its subsequent oxidation on Mn oxides. This process may be occurring in the southern Sacramento Valley of California where Cr(VI) concentrations in groundwater can approach or exceed 50 μg L<sup>−1</sup>. To characterize Cr geochemistry in the area, samples from several soil auger cores (approximately 4 m deep) and drill cores (approximately 25 m deep) were analyzed for total concentrations of 44 major, minor and trace elements, Cr associated with labile Mn and Fe oxides, and Cr(VI). Total concentrations of Cr in these samples ranged from 140 to 2220 mg per kg soil. Between 9 and 70 mg per kg soil was released by selective extractions that target Fe oxides, but essentially no Cr was associated with the abundant reactive Mn oxides (up to ~1000 mg hydroxylamine-reducible Mn per kg soil was present). Both borehole magnetic susceptibility surveys performed at some of the drill core sites and relative differences between Cr released in a 4-acid digestion versus total Cr (lithium metaborate fusion digestion) suggest that the majority of total Cr in the samples is present in refractory chromite minerals transported from ultramafic exposures in the Coast Range Mountains. Chromium(VI) in the samples studied ranged from 0 to 42 μg kg<sup>−1</sup>, representing a minute fraction of total Cr. Chromium(VI) content was typically below detection in surface soils (top 10 cm) where soil organic matter was high, and increased with increasing depth in the soil auger cores as organic matter decreased. Maximum concentrations of Cr(VI) were up to 3 times greater in the deeper drill core samples than the shallow auger cores. Although Cr(VI) in these vadose zone soils and sediments was only a very small fraction of the total solid phase Cr, they are a potentially important source for Cr(VI) to groundwater. Enhanced groundwater recharge through the vadose zone due to irrigation could carry Cr(VI) from the vadose zone to the groundwater and may be the mechanism responsible for the correlation observed between elevated Cr(VI) and NO<sub>3</sub><sup>-</sup> source concentrations in previously published data for valley groundwaters. Incubation of a valley subsoil showed a Cr(VI) production rate of 24 μg kg<sup>−1</sup> a<sup>−1</sup> suggesting that field Cr(VI) concentrations could be regenerated annually. Increased Cr(VI) production rates in H<sup>+</sup>-amended soil incubations indicate that soil acidification processes such as nitrification of ammonium in fertilizers could potentially increase the occurrence of geogenic Cr(VI) in groundwater. Thus, despite the natural origin of the Cr, Cr(VI) generation in the Sacramento Valley soils and sediments has the potential to be influenced by human activities.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.apgeochem.2011.05.023","issn":"08832927","usgsCitation":"Mills, C., Morrison, J.M., Goldhaber, M.B., and Ellefsen, K.J., 2011, Chromium(VI) generation in vadose zone soils and alluvial sediments of the southwestern Sacramento Valley, California: a potential source of geogenic Cr(VI) to groundwater: Applied Geochemistry, v. 26, no. 8, p. 1488-1501, https://doi.org/10.1016/j.apgeochem.2011.05.023.","productDescription":"14 p.","startPage":"1488","endPage":"1501","costCenters":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":245457,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217506,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2011.05.023"}],"country":"United States","state":"California","otherGeospatial":"Sacramento Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.8,35.0 ], [ -122.8,40.7 ], [ -118.8,40.7 ], [ -118.8,35.0 ], [ -122.8,35.0 ] ] ] } } ] }","volume":"26","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f5e7e4b0c8380cd4c4a0","contributors":{"authors":[{"text":"Mills, Christopher T. 0000-0001-8414-1414","orcid":"https://orcid.org/0000-0001-8414-1414","contributorId":93308,"corporation":false,"usgs":true,"family":"Mills","given":"Christopher T.","affiliations":[],"preferred":false,"id":457420,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morrison, Jean M. 0000-0002-6614-8783 jmorrison@usgs.gov","orcid":"https://orcid.org/0000-0002-6614-8783","contributorId":994,"corporation":false,"usgs":true,"family":"Morrison","given":"Jean","email":"jmorrison@usgs.gov","middleInitial":"M.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":457418,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goldhaber, Martin B. 0000-0002-1785-4243 mgold@usgs.gov","orcid":"https://orcid.org/0000-0002-1785-4243","contributorId":1339,"corporation":false,"usgs":true,"family":"Goldhaber","given":"Martin","email":"mgold@usgs.gov","middleInitial":"B.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":457419,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ellefsen, Karl J. 0000-0003-3075-4703 ellefsen@usgs.gov","orcid":"https://orcid.org/0000-0003-3075-4703","contributorId":789,"corporation":false,"usgs":true,"family":"Ellefsen","given":"Karl","email":"ellefsen@usgs.gov","middleInitial":"J.","affiliations":[{"id":82803,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":false}],"preferred":true,"id":457417,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035982,"text":"70035982 - 2011 - Influence of changing water sources and mineral chemistry on the everglades ecosystem","interactions":[],"lastModifiedDate":"2021-02-04T17:44:05.130804","indexId":"70035982","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1345,"text":"Critical Reviews in Environmental Science and Technology","active":true,"publicationSubtype":{"id":10}},"title":"Influence of changing water sources and mineral chemistry on the everglades ecosystem","docAbstract":"<p><span>Human influences during the previous century increased mineral inputs to the Florida Everglades by changing the sources and chemistry of surface inflows. Biogeochemical responses to this enrichment include changes in the availability of key limiting nutrients such as P, the potential for increased turnover of nutrient pools due to accelerated plant decomposition, and increased rates of mercury methylation associated with sulfate enrichment. Mineral enrichment has also been linked to the loss of sensitive macrophyte species, although dominant Everglades species appear tolerant of a broad range of mineral chemistry. Shifts in periphyton community composition and function provide an especially sensitive indicator of mineral enrichment. Understanding the influence of mineral chemistry on Everglades processes and biota may improve predictions of ecosystem responses to ongoing hydrologic restoration efforts and provide guidelines for protecting remaining mineral-poor areas of this peatland.</span></p>","language":"English","publisher":"Taylor & Francis Online","doi":"10.1080/10643389.2010.530921","issn":"10643389","usgsCitation":"McCormick, P.V., Harvey, J., and Crawford, E., 2011, Influence of changing water sources and mineral chemistry on the everglades ecosystem: Critical Reviews in Environmental Science and Technology, v. 41, no. SUPPL. 1, p. 28-63, https://doi.org/10.1080/10643389.2010.530921.","productDescription":"36 p.","startPage":"28","endPage":"63","costCenters":[],"links":[{"id":244193,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216330,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/10643389.2010.530921"}],"country":"United States","state":"Florida","otherGeospatial":"Everglades","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -80.782470703125,\n              25.24469595130604\n            ],\n            [\n              -79.881591796875,\n              25.24469595130604\n            ],\n            [\n              -79.881591796875,\n              26.980828590472107\n            ],\n            [\n              -80.782470703125,\n              26.980828590472107\n            ],\n            [\n              -80.782470703125,\n              25.24469595130604\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"41","issue":"SUPPL. 1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3b17e4b0c8380cd6220c","contributors":{"authors":[{"text":"McCormick, Paul V.","contributorId":92756,"corporation":false,"usgs":true,"family":"McCormick","given":"Paul","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":453449,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harvey, Judson 0000-0002-2654-9873 jwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2654-9873","contributorId":140228,"corporation":false,"usgs":true,"family":"Harvey","given":"Judson","email":"jwharvey@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":false,"id":453448,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Crawford, Eric","contributorId":9903,"corporation":false,"usgs":true,"family":"Crawford","given":"Eric","email":"","affiliations":[],"preferred":false,"id":453447,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035983,"text":"70035983 - 2011 - Biogeochemistry and water quality of the everglades: Symposium overview","interactions":[],"lastModifiedDate":"2012-03-12T17:21:49","indexId":"70035983","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Biogeochemistry and water quality of the everglades: Symposium overview","docAbstract":"[No abstract available]","largerWorkTitle":"Critical Reviews in Environmental Science and Technology","language":"English","doi":"10.1080/10643389.2010.530920","issn":"10643389","usgsCitation":"Reddy, K., Best, G., and Sklar, F., 2011, Biogeochemistry and water quality of the everglades: Symposium overview, <i>in</i> Critical Reviews in Environmental Science and Technology, v. 41, no. SUPPL. 1, p. 1-3, https://doi.org/10.1080/10643389.2010.530920.","startPage":"1","endPage":"3","numberOfPages":"3","costCenters":[],"links":[{"id":216331,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/10643389.2010.530920"},{"id":244194,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"41","issue":"SUPPL. 1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f157e4b0c8380cd4abd6","contributors":{"authors":[{"text":"Reddy, K.R.","contributorId":28096,"corporation":false,"usgs":true,"family":"Reddy","given":"K.R.","email":"","affiliations":[],"preferred":false,"id":453451,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Best, G.R.","contributorId":27007,"corporation":false,"usgs":true,"family":"Best","given":"G.R.","email":"","affiliations":[],"preferred":false,"id":453450,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sklar, F.","contributorId":61618,"corporation":false,"usgs":true,"family":"Sklar","given":"F.","email":"","affiliations":[],"preferred":false,"id":453452,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035430,"text":"70035430 - 2011 - <i>Mysis diluviana</i> population and cohort dynamics in Lake Ontario before and after the establishment of <i>Dreissena</i> spp., <i>Cercopagis pengoi</i>, and <i>Bythotrephes longimanus</i>","interactions":[],"lastModifiedDate":"2012-12-31T15:27:23","indexId":"70035430","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"<i>Mysis diluviana</i> population and cohort dynamics in Lake Ontario before and after the establishment of <i>Dreissena</i> spp., <i>Cercopagis pengoi</i>, and <i>Bythotrephes longimanus</i>","docAbstract":"We investigated population responses of <i>Mysis</i> to ecosystem changes induced by invasion of dreissenids and predatory cladocerans, <i>Cercopagis</i> and <i>Bythotrephes</i>. Lake productivity declined as dreissenids invaded the offshore region. Whole-lake mysid biomass was compared before (early 1990s) and after (2002–2007) the invasion period; it declined 40%–45%. Abundance of young mysids and presence of a summer cohort increased with summer, epilmnetic, nighttime zooplankton biomass (i.e., food biomass index). <i>Cercopagis</i> + <i>Bythotrephes</i> biomass was negatively correlated with this index, implicating them in the mysid decline. Eggs per gravid female increased with autumn, total-water-column zooplankton biomass, reflecting the greater use of hypolimnetic waters by adults. Reproductive success was below replacement during the period 2002–2005. First-year mysid growth rate was maintained while population abundance declined, suggesting selection for individuals that feed effectively at low food concentrations. Mortality rates in the first and second years were dependent on cohort density, indicating that competition for food limited abundance in the first 2 years. Fish predation indices (smelt and alewife combined) were correlated positively with mortality rates and negatively with abundance in the third year. Thus, mysids cannot support as many fish in invaded compared with non-invaded lakes. They may also not be a stable food resource; unusual cohort losses occurred in some years.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Journal of Fisheries and Aquatic Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"NRC Research Press","publisherLocation":"Ottawa, Ontario","doi":"10.1139/f2011-028","issn":"0706652X","usgsCitation":"Johannsson, O.E., Bowen, K.L., Holeck, K.T., and Walsh, M.G., 2011, <i>Mysis diluviana</i> population and cohort dynamics in Lake Ontario before and after the establishment of <i>Dreissena</i> spp., <i>Cercopagis pengoi</i>, and <i>Bythotrephes longimanus</i>: Canadian Journal of Fisheries and Aquatic Sciences, v. 68, no. 5, p. 795-811, https://doi.org/10.1139/f2011-028.","productDescription":"17 p.","startPage":"795","endPage":"811","onlineOnly":"Y","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":215408,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/f2011-028"},{"id":243211,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada;United States","otherGeospatial":"Lake Ontario","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -80.0,43.17 ], [ -80.0,44.36 ], [ -76.0,44.36 ], [ -76.0,43.17 ], [ -80.0,43.17 ] ] ] } } ] }","volume":"68","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a60f1e4b0c8380cd71770","contributors":{"authors":[{"text":"Johannsson, Ora E.","contributorId":25527,"corporation":false,"usgs":true,"family":"Johannsson","given":"Ora","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":450623,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bowen, Kelly L.","contributorId":38382,"corporation":false,"usgs":false,"family":"Bowen","given":"Kelly","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":450624,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Holeck, Kristen T.","contributorId":105549,"corporation":false,"usgs":false,"family":"Holeck","given":"Kristen","email":"","middleInitial":"T.","affiliations":[{"id":12722,"text":"Cornell University","active":true,"usgs":false}],"preferred":false,"id":450626,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Walsh, Maureen G.","contributorId":92506,"corporation":false,"usgs":true,"family":"Walsh","given":"Maureen","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":450625,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035990,"text":"70035990 - 2011 - Formation pressure testing at the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Operational summary, history matching, and interpretations","interactions":[],"lastModifiedDate":"2021-02-04T17:19:42.215385","indexId":"70035990","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2682,"text":"Marine and Petroleum Geology","active":true,"publicationSubtype":{"id":10}},"title":"Formation pressure testing at the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Operational summary, history matching, and interpretations","docAbstract":"<p id=\"abspara0010\">In February 2007, the U.S. Department of Energy, BP Exploration (Alaska), and the U.S. Geological Survey, collected open-hole pressure-response data, as well as gas and water sample collection, in a gas hydrate reservoir (the BPXA-DOE-USGS Mount Elbert Gas Hydrate Stratigraphic Test Well) using Schlumberger's Modular Dynamics Formation Tester (MDT) wireline tool. Four such MDT tests, ranging from six to twelve hours duration, and including a series of flow, sampling, and shut-in periods of various durations, were conducted. Locations for the testing were selected based on NMR and other log data to assure sufficient isolation from reservoir boundaries and zones of excess free water. Test stages in which pressure was reduced sufficiently to mobilize free water in the formation (yet not cause gas hydrate dissociation) produced readily interpretable pressure build-up profiles. Build-ups following larger drawdowns consistently showed gas-hydrate dissociation and gas release (as confirmed by optical fluid analyzer data), as well as progressive dampening of reservoir pressure build-up during sequential tests at a given MDT test station.</p><p id=\"abspara0015\">History matches of one multi-stage, 12-h test (the C2 test) were accomplished using five different reservoir simulators: CMG-STARS, HydrateResSim, MH21-HYDRES, STOMP-HYD, and TOUGH&nbsp;+&nbsp;HYDRATE. Simulations utilized detailed information collected across the reservoir either obtained or determined from geophysical well logs, including thickness (11.3&nbsp;m, 37 ft.), porosity (35%), hydrate saturation (65%), both mobile and immobile water saturations, intrinsic permeability (1000&nbsp;mD), pore water salinity (5&nbsp;ppt), and formation temperature (3.3–3.9&nbsp;°C). This paper will present the approach and preliminary results of the history-matching efforts, including estimates of initial formation permeability and analyses of the various unique features exhibited by the MDT results.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.marpetgeo.2010.02.012","issn":"02648172","usgsCitation":"Anderson, B., Hancock, S., Wilson, S., Enger, C., Collett, T.S., Boswell, R., and Hunter, R., 2011, Formation pressure testing at the Mount Elbert Gas Hydrate Stratigraphic Test Well, Alaska North Slope: Operational summary, history matching, and interpretations: Marine and Petroleum Geology, v. 28, no. 2, p. 478-492, https://doi.org/10.1016/j.marpetgeo.2010.02.012.","productDescription":"15 p.","startPage":"478","endPage":"492","costCenters":[],"links":[{"id":244348,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216477,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marpetgeo.2010.02.012"}],"country":"United States","state":"Alaska","otherGeospatial":"The North Slope","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -167.080078125,\n              67.20403234340081\n            ],\n            [\n              -140.888671875,\n              67.20403234340081\n            ],\n            [\n              -140.888671875,\n              71.63599288330609\n            ],\n            [\n              -167.080078125,\n              71.63599288330609\n            ],\n            [\n              -167.080078125,\n              67.20403234340081\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"28","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a135ae4b0c8380cd54621","contributors":{"authors":[{"text":"Anderson, B.","contributorId":34705,"corporation":false,"usgs":true,"family":"Anderson","given":"B.","affiliations":[],"preferred":false,"id":453503,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hancock, S.","contributorId":71742,"corporation":false,"usgs":false,"family":"Hancock","given":"S.","email":"","affiliations":[],"preferred":false,"id":453507,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilson, S.","contributorId":98935,"corporation":false,"usgs":true,"family":"Wilson","given":"S.","affiliations":[],"preferred":false,"id":453509,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Enger, C.","contributorId":83762,"corporation":false,"usgs":true,"family":"Enger","given":"C.","email":"","affiliations":[],"preferred":false,"id":453508,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Collett, Timothy S. 0000-0002-7598-4708 tcollett@usgs.gov","orcid":"https://orcid.org/0000-0002-7598-4708","contributorId":1698,"corporation":false,"usgs":true,"family":"Collett","given":"Timothy","email":"tcollett@usgs.gov","middleInitial":"S.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":255,"text":"Energy Resources Program","active":true,"usgs":true},{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":453506,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Boswell, R.","contributorId":35121,"corporation":false,"usgs":true,"family":"Boswell","given":"R.","affiliations":[],"preferred":false,"id":453504,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hunter, R.","contributorId":36778,"corporation":false,"usgs":true,"family":"Hunter","given":"R.","affiliations":[],"preferred":false,"id":453505,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70035488,"text":"70035488 - 2011 - Continuous salinity and temperature data from San Francisco estuary, 1982-2002: Trends and the salinity-freshwater inflow relationship","interactions":[],"lastModifiedDate":"2019-06-06T08:13:50","indexId":"70035488","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"title":"Continuous salinity and temperature data from San Francisco estuary, 1982-2002: Trends and the salinity-freshwater inflow relationship","docAbstract":"<p>The U.S. Geological Survey and other federal and state agencies have been collecting continuous temperature and salinity data, two critical estuarine habitat variables, throughout San Francisco estuary for over two decades. Although this dynamic, highly variable system has been well studied, many questions remain relating to the effects of freshwater inflow and other physical and biological linkages. This study examines up to 20 years of publicly available, continuous temperature and salinity data from 10 different San Francisco Bay stations to identify trends in temperature and salinity and quantify the salinityfreshwater inflow relationship. Several trends in the salinity and temperature records were identified, although the high degree of daily and interannual variability confounds the analysis. In addition, freshwater inflow to the estuary has a range of effects on salinity from -0.0020 to -0.0096 (m3 s-1) -1 discharge, depending on location in the estuary and the timescale of analyzed data. Finally, we documented that changes in freshwater inflow to the estuary that are within the range of typical management actions can affect bay-wide salinities by 0.61.4. This study reinforces the idea that multidecadal records are needed to identify trends from decadal changes in water management and climate and, therefore, are extremely valuable.&nbsp;</p>","language":"English","publisher":"Boone","doi":"10.2112/JCOASTRES-D-10-00113.1","issn":"07490208","usgsCitation":"Shellenbarger, G., and Schoellhamer, D., 2011, Continuous salinity and temperature data from San Francisco estuary, 1982-2002: Trends and the salinity-freshwater inflow relationship: Journal of Coastal Research, v. 27, no. 6, p. 1191-1201, https://doi.org/10.2112/JCOASTRES-D-10-00113.1.","productDescription":"11 p.","startPage":"1191","endPage":"1201","numberOfPages":"11","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":242948,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"27","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fa5fe4b0c8380cd4da97","contributors":{"authors":[{"text":"Shellenbarger, Gregory gshellen@usgs.gov","contributorId":174805,"corporation":false,"usgs":true,"family":"Shellenbarger","given":"Gregory","email":"gshellen@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":763781,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schoellhamer, David H. 0000-0001-9488-7340 dschoell@usgs.gov","orcid":"https://orcid.org/0000-0001-9488-7340","contributorId":631,"corporation":false,"usgs":true,"family":"Schoellhamer","given":"David H.","email":"dschoell@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":763782,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70036732,"text":"70036732 - 2011 - Holocene record of precipitation seasonality from lake calcite δ<sup>18</sup>O in the central Rocky Mountains, United States","interactions":[],"lastModifiedDate":"2020-12-22T20:03:48.879383","indexId":"70036732","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Holocene record of precipitation seasonality from lake calcite δ<sup>18</sup>O in the central Rocky Mountains, United States","docAbstract":"<p><span>A context for recent hydroclimatic extremes and variability is provided by a ∼10 k.y. sediment carbonate oxygen isotope (δ</span><sup>18</sup><span>O) record at 5–100 yr resolution from Bison Lake, 3255 m above sea level, in northwestern Colorado (United States). Winter precipitation is the primary water source for the alpine headwater lake in the Upper Colorado River Basin and lake water δ</span><sup>18</sup><span>O measurements reflect seasonal variations in precipitation δ</span><sup>18</sup><span>O. Holocene lake water δ</span><sup>18</sup><span>O variations are inferred from endogenic sedimentary calcite δ</span><sup>18</sup><span>O based on comparisons with historic watershed discharge records and tree-ring reconstructions. Drought periods (i.e., drier winters and/or a more rain-dominated seasonal precipitation balance) generally correspond with higher calcite δ</span><sup>18</sup><span>O values, and vice-versa. Early to middle Holocene δ</span><sup>18</sup><span>O values are higher, implying a rain-dominated seasonal precipitation balance. Lower, more variable δ</span><sup>18</sup><span>O values after ca. 3500 yr ago indicate a snow-dominated but more seasonally variable precipitation balance. The middle to late Holocene δ</span><sup>18</sup><span>O record corresponds with records of El Niño Southern Oscillation intensification that supports a teleconnection between Rocky Mountain climate and North Pacific sea-surface temperatures at decade to century time scales.</span></p>","publisher":"Geological Society of America","doi":"10.1130/G31575.1","issn":"00917613","usgsCitation":"Anderson, L., 2011, Holocene record of precipitation seasonality from lake calcite δ<sup>18</sup>O in the central Rocky Mountains, United States: Geology, v. 39, no. 3, p. 211-214, https://doi.org/10.1130/G31575.1.","productDescription":"4 p.","startPage":"211","endPage":"214","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":245487,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217534,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/G31575.1"}],"country":"United States","state":"Colorado","otherGeospatial":"Bison Lake","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -107.35020160675047,\n              39.762548108057686\n            ],\n            [\n              -107.35020160675047,\n              39.767743695471715\n            ],\n            [\n              -107.34217643737793,\n              39.767743695471715\n            ],\n            [\n              -107.34217643737793,\n              39.762548108057686\n            ],\n            [\n              -107.35020160675047,\n              39.762548108057686\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"39","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a31eee4b0c8380cd5e37b","contributors":{"authors":[{"text":"Anderson, Lesleigh 0000-0002-5264-089X land@usgs.gov","orcid":"https://orcid.org/0000-0002-5264-089X","contributorId":436,"corporation":false,"usgs":true,"family":"Anderson","given":"Lesleigh","email":"land@usgs.gov","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":457564,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70035388,"text":"70035388 - 2011 - Projecting avian response to linked changes in groundwater and riparian floodplain vegetation along a dryland river: A scenario analysis","interactions":[],"lastModifiedDate":"2021-02-24T19:49:05.534333","indexId":"70035388","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1447,"text":"Ecohydrology","active":true,"publicationSubtype":{"id":10}},"title":"Projecting avian response to linked changes in groundwater and riparian floodplain vegetation along a dryland river: A scenario analysis","docAbstract":"<p><span>Groundwater is a key driver of riparian condition on dryland rivers but is in high demand for municipal, industrial, and agricultural uses. Approaches are needed to guide decisions that balance human water needs while conserving riparian ecosystems. We developed a space‐for‐time substitution model that links groundwater change scenarios implemented within a Decision Support System (DSS) with proportions of floodplain vegetation types and abundances of breeding and migratory birds along the upper San Pedro River, AZ, USA. We investigated nine scenarios ranging from groundwater depletion to recharge. In groundwater decline scenarios, relative proportions of tall‐canopied obligate phreatophytes (</span><i>Populus/Salix</i><span>, cottonwood/willow) on the floodplain progressively decline, and shrubbier species less dependent on permanent water sources (e.g.&nbsp;</span><i>Tamarix</i><span>&nbsp;spp., saltcedar) increase. These scenarios result in broad shifts in the composition of the breeding bird community, with canopy‐nesting and water‐obligate birds declining but midstory nesting birds increasing in abundance as groundwater declines. For the most extreme draw‐down scenario where all reaches undergo groundwater declines, models project that only 10% of the upper San Pedro floodplain would be comprised of cottonwood/willow (73% saltcedar and 18% mesquite), and abundances of canopy‐nesting, water‐obligate, and spring migrant birds would decline 48%, 72%, and 40%, respectively. Groundwater recharge scenarios were associated with increases in canopy‐nesting birds particularly given the extreme recharge scenario (all reaches regain shallow water tables and perennial streamflow). Model outputs serve to assess the sensitivity of biotic groups to potential changes in groundwater and thus to rank scenarios based on their expected ecological impacts.&nbsp;</span></p>","language":"English","publisher":"Wiley","doi":"10.1002/eco.143","issn":"19360584","usgsCitation":"Arriana, B.L., Stromberg, J., Goodrich, D., Dixon, M., Lansey, K., Kang, D., Brookshire, D., and Cerasale, D., 2011, Projecting avian response to linked changes in groundwater and riparian floodplain vegetation along a dryland river: A scenario analysis: Ecohydrology, v. 4, no. 1, p. 130-142, https://doi.org/10.1002/eco.143.","productDescription":"13 p.","startPage":"130","endPage":"142","costCenters":[],"links":[{"id":243366,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215554,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/eco.143"}],"volume":"4","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-19","publicationStatus":"PW","scienceBaseUri":"505a8efbe4b0c8380cd7f4e6","contributors":{"authors":[{"text":"Arriana, Brand L.","contributorId":9488,"corporation":false,"usgs":true,"family":"Arriana","given":"Brand","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":450419,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stromberg, J.C.","contributorId":81455,"corporation":false,"usgs":true,"family":"Stromberg","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":450425,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goodrich, D.C.","contributorId":98492,"corporation":false,"usgs":false,"family":"Goodrich","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":450426,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dixon, M.D.","contributorId":57279,"corporation":false,"usgs":true,"family":"Dixon","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":450423,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lansey, K.","contributorId":57680,"corporation":false,"usgs":true,"family":"Lansey","given":"K.","email":"","affiliations":[],"preferred":false,"id":450424,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kang, D.","contributorId":19799,"corporation":false,"usgs":true,"family":"Kang","given":"D.","email":"","affiliations":[],"preferred":false,"id":450421,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Brookshire, D.S.","contributorId":43335,"corporation":false,"usgs":true,"family":"Brookshire","given":"D.S.","email":"","affiliations":[],"preferred":false,"id":450422,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Cerasale, D.J.","contributorId":11028,"corporation":false,"usgs":true,"family":"Cerasale","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":450420,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70036703,"text":"70036703 - 2011 - Beaver assisted river valley formation","interactions":[],"lastModifiedDate":"2020-12-23T18:28:29.668747","indexId":"70036703","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3301,"text":"River Research and Applications","active":true,"publicationSubtype":{"id":10}},"title":"Beaver assisted river valley formation","docAbstract":"<p><span>We examined how beaver dams affect key ecosystem processes, including pattern and process of sediment deposition, the composition and spatial pattern of vegetation, and nutrient loading and processing. We provide new evidence for the formation of heterogeneous beaver meadows on riverine system floodplains and terraces where dynamic flows are capable of breaching in‐channel beaver dams. Our data show a 1.7‐m high beaver dam triggered overbank flooding that drowned vegetation in areas deeply flooded, deposited nutrient‐rich sediment in a spatially heterogeneous pattern on the floodplain and terrace, and scoured soils in other areas. The site quickly de‐watered following the dam breach by high stream flows, protecting the deposited sediment from future re‐mobilization by overbank floods. Bare sediment either exposed by scouring or deposited by the beaver flood was quickly colonized by a spatially heterogeneous plant community, forming a beaver meadow. Many willow and some aspen seedlings established in the more heavily disturbed areas, suggesting the site may succeed to a willow carr plant community suitable for future beaver re‐occupation. We expand existing theory beyond the beaver pond to include terraces within valleys. This more fully explains how beavers can help drive the formation of alluvial valleys and their complex vegetation patterns as was first postulated by Ruedemann and Schoonmaker in 1938.&nbsp;</span></p>","language":"English","publisher":"Wiley","doi":"10.1002/rra.1359","issn":"15351459","usgsCitation":"Westbrook, C.J., Cooper, D., and Baker, B.W., 2011, Beaver assisted river valley formation: River Research and Applications, v. 27, no. 2, p. 247-256, https://doi.org/10.1002/rra.1359.","productDescription":"10 p.","startPage":"247","endPage":"256","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":245547,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217593,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rra.1359"}],"country":"United States","state":"Colorado","otherGeospatial":"Colorado River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -106.3641357421875,\n              39.70296052957233\n            ],\n            [\n              -105.1885986328125,\n              39.70296052957233\n            ],\n            [\n              -105.1885986328125,\n              40.9840449469281\n            ],\n            [\n              -106.3641357421875,\n              40.9840449469281\n            ],\n            [\n              -106.3641357421875,\n              39.70296052957233\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"27","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-02-03","publicationStatus":"PW","scienceBaseUri":"5059f037e4b0c8380cd4a660","contributors":{"authors":[{"text":"Westbrook, Cherie J.","contributorId":79705,"corporation":false,"usgs":false,"family":"Westbrook","given":"Cherie","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":457435,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cooper, D.J.","contributorId":89489,"corporation":false,"usgs":true,"family":"Cooper","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":457436,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Baker, Bruce W. bakerb@usgs.gov","contributorId":95401,"corporation":false,"usgs":true,"family":"Baker","given":"Bruce","email":"bakerb@usgs.gov","middleInitial":"W.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":false,"id":457434,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70032322,"text":"70032322 - 2011 - Wave-current interaction in Willapa Bay","interactions":[],"lastModifiedDate":"2017-11-05T22:28:20","indexId":"70032322","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2315,"text":"Journal of Geophysical Research C: Oceans","active":true,"publicationSubtype":{"id":10}},"title":"Wave-current interaction in Willapa Bay","docAbstract":"<p>This paper describes the importance of wave-current interaction in an inlet-estuary system. The three-dimensional, fully coupled, Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) modeling system was applied in Willapa Bay (Washington State) from 22 to 29 October 1998 that included a large storm event. To represent the interaction between waves and currents, the vortex-force method was used. Model results were compared with water elevations, currents, and wave measurements obtained by the U.S. Army Corp of Engineers. In general, a good agreement between field data and computed results was achieved, although some discrepancies were also observed in regard to wave peak directions in the most upstream station. Several numerical experiments that considered different forcing terms were run in order to identify the effects of each wind, tide, and wave-current interaction process. Comparison of the horizontal momentum balances results identified that wave-breaking-induced acceleration is one of the leading terms in the inlet area. The enhancement of the apparent bed roughness caused by waves also affected the values and distribution of the bottom shear stress. The pressure gradient showed significant changes with respect to the pure tidal case. During storm conditions the momentum balance in the inlet shares the characteristics of tidal-dominated and wave-dominated surf zone environments. The changes in the momentum balance caused by waves were manifested both in water level and current variations. The most relevant effect on hydrodynamics was a wave-induced setup in the inner part of the estuary.</p>","language":"English","publisher":"Wiley","doi":"10.1029/2011JC007387","issn":"01480227","usgsCitation":"Olabarrieta, M., Warner, J., and Kumar, N., 2011, Wave-current interaction in Willapa Bay: Journal of Geophysical Research C: Oceans, v. 116, no. C12, Article C12014; 27 p., https://doi.org/10.1029/2011JC007387.","productDescription":"Article C12014; 27 p.","costCenters":[],"links":[{"id":475277,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/4991","text":"External Repository"},{"id":242583,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Willapa Bay","volume":"116","issue":"C12","noUsgsAuthors":false,"publicationDate":"2011-12-13","publicationStatus":"PW","scienceBaseUri":"505bcf98e4b08c986b32e9c1","contributors":{"authors":[{"text":"Olabarrieta, Maitane 0000-0002-7619-7992 molabarrieta@usgs.gov","orcid":"https://orcid.org/0000-0002-7619-7992","contributorId":81631,"corporation":false,"usgs":true,"family":"Olabarrieta","given":"Maitane","email":"molabarrieta@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":435605,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Warner, John C. 0000-0002-3734-8903 jcwarner@usgs.gov","orcid":"https://orcid.org/0000-0002-3734-8903","contributorId":2681,"corporation":false,"usgs":true,"family":"Warner","given":"John C.","email":"jcwarner@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":435603,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kumar, Nirnimesh","contributorId":190663,"corporation":false,"usgs":false,"family":"Kumar","given":"Nirnimesh","email":"","affiliations":[],"preferred":false,"id":435604,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035923,"text":"70035923 - 2011 - Long-term trends in the St. Marys River open water fish community","interactions":[],"lastModifiedDate":"2012-12-28T14:24:41","indexId":"70035923","displayToPublicDate":"2011-01-01T00:00:00","publicationYear":"2011","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Long-term trends in the St. Marys River open water fish community","docAbstract":"We examined trends in species composition and abundance of the St. Marys River fish community. Abundance data were available approximately once every six years from 1975 through 2006, and size and age data were available from 1995 through 2006. We also compared survey data in 2006 with results of a concurrent creel survey that year, as well as data from prior surveys spanning a 69 year time frame. The St. Marys River fish community was best characterized as a coolwater fish community with apparent little variation in species composition, and only slight variation in overall fish abundance since 1975. However, we did find recent trends in abundance among target species sought by anglers: centrarchids increased, percids appeared stable, and both northern pike <i>Esox lucius</i> and cisco <i>Coregonus artedii</i> declined. Survey results suggested that walleye (<i>Sander vitreus</i>) and yellow perch (<i>Perca flavescens</i>) experienced moderate exploitation but benefited from recent strong recruitment and faster growth. Mechanisms underlying declines of northern pike and cisco were not clear; reduced abundance could have resulted from high exploitation, variation in recruitment, or a combination of both factors. Despite these challenges, the St. Marys River fish community appears remarkably stable. We suggest that managers insure that creel surveys occur simultaneously with assessments, but periodic gill net surveys may no longer provide adequate data in support of recent, more complex management objectives. While additional surveys would add costs, more frequent data might ensure sustainability of a unique fish community that supports a large proportion of angler effort on Lake Huron.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Great Lakes Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"International Association for Great Lakes Research","publisherLocation":"Ann Arbor, MI","doi":"10.1016/j.jglr.2011.02.002","issn":"03801330","usgsCitation":"Schaeffer, J.S., Fielder, D., Godby, N., Bowen, A., O'Connor, L., Parrish, J., Greenwood, S., Chong, S., and Wright, G., 2011, Long-term trends in the St. Marys River open water fish community: Journal of Great Lakes Research, v. 37, p. 70-79, https://doi.org/10.1016/j.jglr.2011.02.002.","productDescription":"10 p.","startPage":"70","endPage":"79","numberOfPages":"10","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":216326,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jglr.2011.02.002"},{"id":244189,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada;United States","state":"Michigan;Ontario","otherGeospatial":"Lake Huron;St. Marys River","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -84.73,45.86 ], [ -84.73,46.67 ], [ -83.51,46.67 ], [ -83.51,45.86 ], [ -84.73,45.86 ] ] ] } } ] }","volume":"37","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a49ade4b0c8380cd687da","contributors":{"authors":[{"text":"Schaeffer, Jeffrey S.","contributorId":89083,"corporation":false,"usgs":true,"family":"Schaeffer","given":"Jeffrey","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":453161,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fielder, David G.","contributorId":85434,"corporation":false,"usgs":true,"family":"Fielder","given":"David G.","affiliations":[],"preferred":false,"id":453159,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Godby, Neal","contributorId":102295,"corporation":false,"usgs":true,"family":"Godby","given":"Neal","affiliations":[],"preferred":false,"id":453162,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bowen, Anjanette","contributorId":85930,"corporation":false,"usgs":true,"family":"Bowen","given":"Anjanette","affiliations":[],"preferred":false,"id":453160,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"O'Connor, Lisa","contributorId":19402,"corporation":false,"usgs":true,"family":"O'Connor","given":"Lisa","affiliations":[],"preferred":false,"id":453154,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Parrish, Josh","contributorId":66511,"corporation":false,"usgs":true,"family":"Parrish","given":"Josh","email":"","affiliations":[],"preferred":false,"id":453158,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Greenwood, Susan","contributorId":29240,"corporation":false,"usgs":true,"family":"Greenwood","given":"Susan","email":"","affiliations":[],"preferred":false,"id":453155,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Chong, Stephen","contributorId":32013,"corporation":false,"usgs":true,"family":"Chong","given":"Stephen","email":"","affiliations":[],"preferred":false,"id":453156,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Wright, Greg","contributorId":54034,"corporation":false,"usgs":true,"family":"Wright","given":"Greg","affiliations":[],"preferred":false,"id":453157,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
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