{"pageNumber":"1683","pageRowStart":"42050","pageSize":"25","recordCount":184582,"records":[{"id":70193734,"text":"70193734 - 2012 - Science in support of the Deepwater Horizon response","interactions":[],"lastModifiedDate":"2021-03-25T16:34:19.634986","indexId":"70193734","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3165,"text":"Proceedings of the National Academy of Sciences of the United States of America","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Science in support of the <i>Deepwater Horizon</i> response","title":"Science in support of the Deepwater Horizon response","docAbstract":"<p>This introduction to the Special Feature presents the context for science during the <i>Deepwater Horizon</i> oil spill response, summarizes how scientific knowledge was integrated across disciplines and statutory responsibilities, identifies areas where scientific information was accurate and where it was not, and considers lessons learned and recommendations for future research and response. Scientific information was integrated within and across federal and state agencies, with input from nongovernmental scientists, across a diverse portfolio of needs—stopping the flow of oil, estimating the amount of oil, capturing and recovering the oil, tracking and forecasting surface oil, protecting coastal and oceanic wildlife and habitat, managing fisheries, and protecting the safety of seafood. Disciplines involved included atmospheric, oceanographic, biogeochemical, ecological, health, biological, and chemical sciences, physics, geology, and mechanical and chemical engineering. Platforms ranged from satellites and planes to ships, buoys, gliders, and remotely operated vehicles to laboratories and computer simulations. The unprecedented response effort depended directly on intense and extensive scientific and engineering data, information, and advice. Many valuable lessons were learned that should be applied to future events.</p>","language":"English","publisher":"National Academy of Science","doi":"10.1073/pnas.1204729109","usgsCitation":"Lubchenco, J., McNutt, M.K., Dreyfus, G., Murawski, S.A., Kennedy, D.M., Anastas, P.T., Chu, S., and Hunter, T., 2012, Science in support of the Deepwater Horizon response: Proceedings of the National Academy of Sciences of the United States of America, v. 109, no. 50, p. 20212-20221, https://doi.org/10.1073/pnas.1204729109.","productDescription":"10 p.","startPage":"20212","endPage":"20221","ipdsId":"IP-041327","costCenters":[{"id":5066,"text":"Office of the Director USGS","active":true,"usgs":true}],"links":[{"id":474655,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1073/pnas.1204729109","text":"Publisher Index Page"},{"id":348189,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alabama, Florida, Louisiana, Mississippi, Texas","otherGeospatial":"Gulf of Mexico","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -97.36083984375,\n              26.03704188651584\n            ],\n            [\n              -82.0458984375,\n              26.03704188651584\n            ],\n            [\n              -82.0458984375,\n              30.29701788337205\n            ],\n            [\n              -97.36083984375,\n              30.29701788337205\n            ],\n            [\n              -97.36083984375,\n              26.03704188651584\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"109","issue":"50","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2012-12-03","publicationStatus":"PW","scienceBaseUri":"59fedfb5e4b0531197b573ca","contributors":{"authors":[{"text":"Lubchenco, Jane","contributorId":102350,"corporation":false,"usgs":false,"family":"Lubchenco","given":"Jane","affiliations":[{"id":12448,"text":"U.S. National Oceanic and Atmospheric Administration","active":true,"usgs":false}],"preferred":false,"id":720231,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McNutt, Marcia K. 0000-0003-0117-7716 mcnutt@usgs.gov","orcid":"https://orcid.org/0000-0003-0117-7716","contributorId":327,"corporation":false,"usgs":true,"family":"McNutt","given":"Marcia","email":"mcnutt@usgs.gov","middleInitial":"K.","affiliations":[{"id":5066,"text":"Office of the Director USGS","active":true,"usgs":true}],"preferred":false,"id":720232,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dreyfus, Gabrielle","contributorId":62479,"corporation":false,"usgs":false,"family":"Dreyfus","given":"Gabrielle","email":"","affiliations":[{"id":34793,"text":"National Oceanic and Atmospheric Administration (NOAA)","active":true,"usgs":false}],"preferred":false,"id":720233,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Murawski, Steven A.","contributorId":46377,"corporation":false,"usgs":false,"family":"Murawski","given":"Steven","email":"","middleInitial":"A.","affiliations":[{"id":34793,"text":"National Oceanic and Atmospheric Administration (NOAA)","active":true,"usgs":false}],"preferred":false,"id":720234,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kennedy, David M.","contributorId":50421,"corporation":false,"usgs":false,"family":"Kennedy","given":"David","email":"","middleInitial":"M.","affiliations":[{"id":34793,"text":"National Oceanic and Atmospheric Administration (NOAA)","active":true,"usgs":false}],"preferred":false,"id":720235,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Anastas, Paul T.","contributorId":102760,"corporation":false,"usgs":false,"family":"Anastas","given":"Paul","email":"","middleInitial":"T.","affiliations":[{"id":13226,"text":"U.S. Environmental Protection Agency, Office of Research and Development","active":true,"usgs":false}],"preferred":false,"id":720236,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Chu, Steven","contributorId":87041,"corporation":false,"usgs":false,"family":"Chu","given":"Steven","email":"","affiliations":[{"id":34152,"text":"US Department of Energy","active":true,"usgs":false}],"preferred":false,"id":720237,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Hunter, Tom","contributorId":47657,"corporation":false,"usgs":false,"family":"Hunter","given":"Tom","email":"","affiliations":[{"id":34829,"text":"Sandia National Laboratories","active":true,"usgs":false}],"preferred":false,"id":720238,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70193004,"text":"70193004 - 2012 - Design and implementation of the next generation Landsat satellite communications system","interactions":[],"lastModifiedDate":"2017-12-20T10:53:10","indexId":"70193004","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Design and implementation of the next generation Landsat satellite communications system","docAbstract":"<p>The next generation Landsat satellite, Landsat 8 (L8), also known as the Landsat Data Continuity Mission (LDCM), uses a highly spectrally efficient modulation and data formatting approach to provide large amounts of downlink (D/L) bandwidth in a limited X-Band spectrum allocation. In addition to purely data throughput and bandwidth considerations, there were a number of additional constraints based on operational considerations for prevention of interference with the NASA Deep-Space Network (DSN) band just above the L8 D/L band, minimization of jitter contributions to prevent impacts to instrument performance, and the need to provide an interface to the Landsat International Cooperator (IC) community. A series of trade studies were conducted to consider either X- or Ka-Band, modulation type, and antenna coverage type, prior to the release of the request for proposal (RFP) for the spacecraft. Through use of the spectrally efficient rate-7/8 Low-Density Parity-Check error-correction coding and novel filtering, an XBand frequency plan was developed that balances all the constraints and considerations, while providing world-class link performance, fitting 384 Mbits/sec of data into the 375 MHz X-Band allocation with bit-error rates better than 10-12 using an earth-coverage antenna.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings from the International Telemetering Conference ","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"International Foundation for Telemetering","usgsCitation":"Mah, G.R., O’Brien, M., Garon, H., Mott, C., Ames, A., and Dearth, K., 2012, Design and implementation of the next generation Landsat satellite communications system, <i>in</i> Proceedings from the International Telemetering Conference , 14 p.","productDescription":"14 p.","ipdsId":"IP-038940","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":350124,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":347674,"type":{"id":15,"text":"Index Page"},"url":"https://arizona.openrepository.com/arizona/handle/10150/581626"}],"publishingServiceCenter":{"id":4,"text":"Rolla PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a6105a0e4b06e28e9c2557f","contributors":{"authors":[{"text":"Mah, Grant R. 0000-0002-2584-3915 mah@usgs.gov","orcid":"https://orcid.org/0000-0002-2584-3915","contributorId":4087,"corporation":false,"usgs":true,"family":"Mah","given":"Grant","email":"mah@usgs.gov","middleInitial":"R.","affiliations":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":717588,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Brien, Michael mobrien@usgs.gov","contributorId":4333,"corporation":false,"usgs":true,"family":"O’Brien","given":"Michael","email":"mobrien@usgs.gov","affiliations":[],"preferred":true,"id":717589,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Garon, Howard","contributorId":198902,"corporation":false,"usgs":false,"family":"Garon","given":"Howard","email":"","affiliations":[],"preferred":false,"id":717592,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mott, Claire","contributorId":198901,"corporation":false,"usgs":false,"family":"Mott","given":"Claire","email":"","affiliations":[],"preferred":false,"id":717591,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ames, Alan","contributorId":198900,"corporation":false,"usgs":false,"family":"Ames","given":"Alan","email":"","affiliations":[],"preferred":false,"id":717590,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dearth, Ken","contributorId":198903,"corporation":false,"usgs":false,"family":"Dearth","given":"Ken","email":"","affiliations":[],"preferred":false,"id":717593,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70038285,"text":"70038285 - 2012 - Wildlife forestry","interactions":[],"lastModifiedDate":"2022-12-20T16:53:04.684489","indexId":"70038285","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"10","title":"Wildlife forestry","docAbstract":"<p>Wildlife forestry is management of forest resources, within sites and across landscapes, to provide sustainable, desirable habitat conditions for all forest-dependent (silvicolous) fauna while concurrently yielding economically viable, quality timber products. In practice, however, management decisions associated with wildlife forestry often reflect a desire to provide suitable habitat for rare species, species with declining populations, and exploitable (i.e., game) species. Collectively, these species are deemed priority species and they are assumed to benefit from habitat conditions that result from prescribed silvicultural management actions.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Global perspectives on sustainable forest management","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Intech","doi":"10.5772/34630","usgsCitation":"Twedt, D.J., 2012, Wildlife forestry, chap. 10 <i>of</i> Global perspectives on sustainable forest management, p. 161-190, https://doi.org/10.5772/34630.","productDescription":"30 p.","startPage":"161","endPage":"190","numberOfPages":"30","ipdsId":"IP-034378","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":474683,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5772/34630","text":"Publisher Index Page"},{"id":334455,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationDate":"2012-04-25","publicationStatus":"PW","scienceBaseUri":"5891b0a9e4b072a7ac1298f7","contributors":{"editors":[{"text":"Okia, Clement A.","contributorId":300258,"corporation":false,"usgs":false,"family":"Okia","given":"Clement","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":859739,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Twedt, Daniel J. 0000-0003-1223-5045 dtwedt@usgs.gov","orcid":"https://orcid.org/0000-0003-1223-5045","contributorId":398,"corporation":false,"usgs":true,"family":"Twedt","given":"Daniel","email":"dtwedt@usgs.gov","middleInitial":"J.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":661938,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70159361,"text":"70159361 - 2012 - Sand grain sources at coral reefs indicate reef health","interactions":[],"lastModifiedDate":"2023-11-27T16:19:46.991991","indexId":"70159361","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Sand grain sources at coral reefs indicate reef health","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Tropical connections: South Florida's marine environment","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"IAN Press","publisherLocation":"Cambridge, Md.","usgsCitation":"Lidz, B.H., 2012, Sand grain sources at coral reefs indicate reef health, chap. <i>of</i> Tropical connections: South Florida's marine environment, p. 207-207.","productDescription":"1 p.","startPage":"207","endPage":"207","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-022332","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":310573,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://ian.umces.edu/publications/tropical-connections-south-floridas-marine-environment/"},{"id":310574,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Florida Keys","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -80.03414834229332,\n              25.427115385871545\n            ],\n            [\n              -80.27626779016522,\n              25.461636628495512\n            ],\n            [\n              -80.67767634847874,\n              24.96011449338799\n            ],\n            [\n              -81.35306217675215,\n              24.71147622141531\n            ],\n            [\n              -82.047562698279,\n              24.63041668299337\n            ],\n            [\n              -81.87553045900198,\n              24.334684401975366\n            ],\n            [\n              -80.54387349570706,\n              24.79248301969504\n            ],\n            [\n              -80.03414834229332,\n              25.427115385871545\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"562a08ece4b011227bf1fdcf","contributors":{"editors":[{"text":"Kruczynski, William L.","contributorId":148974,"corporation":false,"usgs":false,"family":"Kruczynski","given":"William","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":578223,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Fletcher, Pamela J.","contributorId":148975,"corporation":false,"usgs":false,"family":"Fletcher","given":"Pamela","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":578224,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Lidz, Barbara H. blidz@usgs.gov","contributorId":2475,"corporation":false,"usgs":true,"family":"Lidz","given":"Barbara","email":"blidz@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":578222,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70190695,"text":"70190695 - 2012 - Fire in the Mediterranean—From genes to ecosystems","interactions":[],"lastModifiedDate":"2017-09-12T14:41:50","indexId":"70190695","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2117,"text":"Israel Journal of Ecology and Evolution","active":true,"publicationSubtype":{"id":10}},"title":"Fire in the Mediterranean—From genes to ecosystems","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Taylor & Francis","usgsCitation":"Ne’eman, G., Izhaki, I., and Keeley, J.E., 2012, Fire in the Mediterranean—From genes to ecosystems: Israel Journal of Ecology and Evolution, v. 58, no. 2-3, p. 103-111.","productDescription":"9 p.","startPage":"103","endPage":"111","ipdsId":"IP-082428","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":345664,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":345663,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.tandfonline.com/doi/abs/10.1560/IJEE.58.2-3.103"}],"volume":"58","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59b8f221e4b08b1644e0aefe","contributors":{"authors":[{"text":"Ne’eman, Gidi","contributorId":81449,"corporation":false,"usgs":true,"family":"Ne’eman","given":"Gidi","email":"","affiliations":[],"preferred":false,"id":710187,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Izhaki, Ido","contributorId":53560,"corporation":false,"usgs":true,"family":"Izhaki","given":"Ido","email":"","affiliations":[],"preferred":false,"id":710188,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keeley, Jon E. 0000-0002-4564-6521 jon_keeley@usgs.gov","orcid":"https://orcid.org/0000-0002-4564-6521","contributorId":1268,"corporation":false,"usgs":true,"family":"Keeley","given":"Jon","email":"jon_keeley@usgs.gov","middleInitial":"E.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":710189,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70191928,"text":"70191928 - 2012 - Origins of mineral deposits, Belt-Purcell Basin, United States and Canada: An introduction","interactions":[],"lastModifiedDate":"2020-12-30T16:31:08.376241","indexId":"70191928","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Origins of mineral deposits, Belt-Purcell Basin, United States and Canada: An introduction","docAbstract":"<p><span>The fill of the Mesoproterozoic Belt-Purcell Basin, which straddles the United States-Canada border within the Rocky Mountains of western North America (</span><a class=\"link link-reveal link-table xref-fig\" data-open=\"f1-1071081\">Fig. 1</a><span>), consists of marine and nonmarine clastic and carbonate strata 15 to 20 km thick. Three giant metal-producing ore deposits or districts account for the bulk of the known metal endowment within the bounds of the Belt-Purcell Basin: (1) the syndepositional Sullivan Pb-Zn-Ag deposit in southern British Columbia (total production: Pb, 8.4 million tonnes [Mt]; Zn, 7.9 Mt; Ag, 0.0093 Mt;&nbsp;</span><a class=\"link link-ref link-reveal xref-bibr\" data-open=\"b35-1071081\">Lydon, 2000</a><span>), (2) the mesothermal Pb-Zn-Ag veins of the Coeur d’Alene district in northern Idaho (total production: Pb, 7.5 Mt; Zn, 3.0 Mt; Ag, 0.052 Mt;&nbsp;</span><a class=\"link link-ref link-reveal xref-bibr\" data-open=\"b32-1071081\">Long, 1998</a><span>; post-1997 data from USGS Annual Minerals Yearbooks), and (3) the Cretaceous porphyry copper deposit and associated polymetallic veins in the Butte district in Montana (total resource: Cu, 35 Mt; Zn, 4.6 Mt; Ag, 0.044 Mt;&nbsp;</span><a class=\"link link-ref link-reveal xref-bibr\" data-open=\"b32-1071081\">Long et al., 1998</a><span>). The Sullivan Mine closed in 2001 after more than 92 years of production. Mining of 26 major vein deposits in the Coeur d’Alene district began in the 1880s and peaked about 1950. Production in the Coeur d’Alene district continues today from the Galena and Lucky Friday Mines (the latter closed for 2012 to refurbish the mile-deep vertical access shaft). Mining at Butte began in 1875, with copper production peaking in 1917. Mining continues today in the eastern upfaulted portion of the Butte porphyry copper deposit at the Continental Mine.</span></p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/econgeo.107.6.1081","usgsCitation":"Box, S.E., Bookstrom, A.A., and Anderson, R.G., 2012, Origins of mineral deposits, Belt-Purcell Basin, United States and Canada: An introduction: Economic Geology, v. 107, no. 6, p. 1081-1088, https://doi.org/10.2113/econgeo.107.6.1081.","productDescription":"8 p.","startPage":"1081","endPage":"1088","ipdsId":"IP-035764","costCenters":[{"id":662,"text":"Western Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":349517,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","state":"Alberta, British Columbia, Idaho, Montana","otherGeospatial":"Belt-Purcell Basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -117.02636718749999,\n              45.85941212790755\n            ],\n            [\n              -111.4892578125,\n              45.85941212790755\n            ],\n            [\n              -111.4892578125,\n              50.62507306341435\n            ],\n            [\n              -117.02636718749999,\n              50.62507306341435\n            ],\n            [\n              -117.02636718749999,\n              45.85941212790755\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"107","issue":"6","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5a6105a1e4b06e28e9c25587","contributors":{"authors":[{"text":"Box, Stephen E. 0000-0002-5268-8375 sbox@usgs.gov","orcid":"https://orcid.org/0000-0002-5268-8375","contributorId":1843,"corporation":false,"usgs":true,"family":"Box","given":"Stephen","email":"sbox@usgs.gov","middleInitial":"E.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":713743,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bookstrom, Arthur A. 0000-0003-1336-3364 abookstrom@usgs.gov","orcid":"https://orcid.org/0000-0003-1336-3364","contributorId":1542,"corporation":false,"usgs":true,"family":"Bookstrom","given":"Arthur","email":"abookstrom@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":5056,"text":"Office of the AD Energy and Minerals, and Environmental Health","active":true,"usgs":true}],"preferred":true,"id":713742,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anderson, Robert G.","contributorId":197569,"corporation":false,"usgs":false,"family":"Anderson","given":"Robert","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":713744,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":70194128,"text":"70194128 - 2012 - Landforms: Yellowstone and Grand Teton National Parks","interactions":[],"lastModifiedDate":"2021-04-09T20:10:54.613573","indexId":"70194128","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Landforms: Yellowstone and Grand Teton National Parks","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Atlas of Yellowstone","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"University of California Press","usgsCitation":"Pierce, K.L., 2012, Landforms: Yellowstone and Grand Teton National Parks, chap. <i>of</i> Atlas of Yellowstone.","ipdsId":"IP-028098","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":350061,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho, Montana, Woming","otherGeospatial":"Grand Teton National Park, Yellowstone National Park","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -111.2640380859375,\n              44.071800467511565\n            ],\n            [\n              -109.7259521484375,\n              44.071800467511565\n            ],\n            [\n              -109.7259521484375,\n              45.120052841530544\n            ],\n            [\n              -111.2640380859375,\n              45.120052841530544\n            ],\n            [\n              -111.2640380859375,\n              44.071800467511565\n            ]\n          ]\n        ]\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -111.03881835937499,\n              43.32517767999296\n            ],\n            [\n              -110.31784057617188,\n              43.32517767999296\n            ],\n            [\n              -110.31784057617188,\n              44.071800467511565\n            ],\n            [\n              -111.03881835937499,\n              44.071800467511565\n            ],\n            [\n              -111.03881835937499,\n              43.32517767999296\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a6105a0e4b06e28e9c25573","contributors":{"editors":[{"text":"Marcus, A. W.","contributorId":201400,"corporation":false,"usgs":false,"family":"Marcus","given":"A.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":725205,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Meachan, J. E.","contributorId":201401,"corporation":false,"usgs":false,"family":"Meachan","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":725206,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Rodman, A. W.","contributorId":201402,"corporation":false,"usgs":false,"family":"Rodman","given":"A.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":725207,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Steingisser, Alethea","contributorId":201403,"corporation":false,"usgs":false,"family":"Steingisser","given":"Alethea","email":"","affiliations":[],"preferred":false,"id":725208,"contributorType":{"id":2,"text":"Editors"},"rank":4}],"authors":[{"text":"Pierce, Kenneth L. kpierce@usgs.gov","contributorId":1609,"corporation":false,"usgs":true,"family":"Pierce","given":"Kenneth","email":"kpierce@usgs.gov","middleInitial":"L.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true},{"id":547,"text":"Rocky Mountain Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":722277,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70035490,"text":"70035490 - 2012 - Modifications to the conduit flow process mode 2 for MODFLOW-2005","interactions":[],"lastModifiedDate":"2020-11-24T12:35:59.930906","indexId":"70035490","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Modifications to the conduit flow process mode 2 for MODFLOW-2005","docAbstract":"<p><span>As a result of rock dissolution processes, karst aquifers exhibit highly conductive features such as caves and conduits. Within these structures, groundwater flow can become turbulent and therefore be described by nonlinear gradient functions. Some numerical groundwater flow models explicitly account for pipe hydraulics by coupling the continuum model with a pipe network that represents the conduit system. In contrast, the Conduit Flow Process Mode 2 (CFPM2) for MODFLOW‐2005 approximates turbulent flow by reducing the hydraulic conductivity within the existing linear head gradient of the MODFLOW continuum model. This approach reduces the practical as well as numerical efforts for simulating turbulence. The original formulation was for large pore aquifers where the onset of turbulence is at low Reynolds numbers (1 to 100) and not for conduits or pipes. In addition, the existing code requires multiple time steps for convergence due to iterative adjustment of the hydraulic conductivity. Modifications to the existing CFPM2 were made by implementing a generalized power function with a user‐defined exponent. This allows for matching turbulence in porous media or pipes and eliminates the time steps required for iterative adjustment of hydraulic conductivity. The modified CFPM2 successfully replicated simple benchmark test problems.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6584.2011.00805.x","issn":"0017467X","usgsCitation":"Reimann, T., Birk, S., Rehrl, C., and Shoemaker, W., 2012, Modifications to the conduit flow process mode 2 for MODFLOW-2005: Ground Water, v. 50, no. 1, p. 144-148, https://doi.org/10.1111/j.1745-6584.2011.00805.x.","productDescription":"5 p.","startPage":"144","endPage":"148","costCenters":[{"id":27821,"text":"Caribbean-Florida Water Science Center","active":true,"usgs":true}],"links":[{"id":242950,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"50","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-03-03","publicationStatus":"PW","scienceBaseUri":"505a5cbbe4b0c8380cd6fee4","contributors":{"authors":[{"text":"Reimann, Thomas","contributorId":45536,"corporation":false,"usgs":true,"family":"Reimann","given":"Thomas","email":"","affiliations":[],"preferred":false,"id":450885,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Birk, S.","contributorId":41182,"corporation":false,"usgs":true,"family":"Birk","given":"S.","email":"","affiliations":[],"preferred":false,"id":450884,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rehrl, C.","contributorId":33938,"corporation":false,"usgs":true,"family":"Rehrl","given":"C.","email":"","affiliations":[],"preferred":false,"id":450883,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Shoemaker, W. Barclay","contributorId":215321,"corporation":false,"usgs":true,"family":"Shoemaker","given":"W. Barclay","affiliations":[{"id":27821,"text":"Caribbean-Florida Water Science Center","active":true,"usgs":true}],"preferred":true,"id":450886,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035491,"text":"70035491 - 2012 - Tropical forests in a warming world","interactions":[],"lastModifiedDate":"2012-12-11T09:23:58","indexId":"70035491","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2863,"text":"New Phytologist","active":true,"publicationSubtype":{"id":10}},"title":"Tropical forests in a warming world","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"New Phytologist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","publisherLocation":"Hoboken, NJ","doi":"10.1111/j.1469-8137.2011.03985.x","usgsCitation":"Reed, S., Wood, T., and Cavaleri, M., 2012, Tropical forests in a warming world: New Phytologist, v. 193, no. 1, p. 27-29, https://doi.org/10.1111/j.1469-8137.2011.03985.x.","productDescription":"3 p.","startPage":"27","endPage":"29","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":242951,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215169,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1469-8137.2011.03985.x"}],"volume":"193","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-12-02","publicationStatus":"PW","scienceBaseUri":"505bb894e4b08c986b32793c","contributors":{"authors":[{"text":"Reed, S.C.","contributorId":72166,"corporation":false,"usgs":true,"family":"Reed","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":450889,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wood, T.E.","contributorId":35970,"corporation":false,"usgs":true,"family":"Wood","given":"T.E.","email":"","affiliations":[],"preferred":false,"id":450888,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cavaleri, M.A.","contributorId":34347,"corporation":false,"usgs":true,"family":"Cavaleri","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":450887,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70187163,"text":"70187163 - 2012 - The General Ensemble Biogeochemical Modeling System (GEMS) and its applications to agricultural systems in the United States: Chapter 18","interactions":[],"lastModifiedDate":"2017-04-25T14:21:37","indexId":"70187163","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"The General Ensemble Biogeochemical Modeling System (GEMS) and its applications to agricultural systems in the United States: Chapter 18","docAbstract":"<p><span>The General Ensemble Biogeochemical Modeling System (GEMS) was es in individual models, it uses multiple site-scale biogeochemical models to perform model simulations. Second, it adopts Monte Carlo ensemble simulations of each simulation unit (one site/pixel or group of sites/pixels with similar biophysical conditions) to incorporate uncertainties and variability (as measured by variances and covariance) of input variables into model simulations. In this chapter, we illustrate the applications of GEMS at the site and regional scales with an emphasis on incorporating agricultural practices. Challenges in modeling soil carbon dynamics and greenhouse emissions are also discussed.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Managing agricultural greenhouse gases","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Elsevier","doi":"10.1016/B978-0-12-386897-8.00018-8","usgsCitation":"Liu, S., Tan, Z., Chen, M., Liu, J., Wein, A., Li, Z., Huang, S., Oeding, J., Young, C., Verma, S., Suyker, A.E., and Faulkner, S.P., 2012, The General Ensemble Biogeochemical Modeling System (GEMS) and its applications to agricultural systems in the United States: Chapter 18, chap. <i>of</i> Managing agricultural greenhouse gases, p. 309-323, https://doi.org/10.1016/B978-0-12-386897-8.00018-8.","productDescription":"15 p.","startPage":"309","endPage":"323","ipdsId":"IP-029395","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":340313,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"publishingServiceCenter":{"id":4,"text":"Rolla PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59006067e4b0e85db3a5de0f","contributors":{"authors":[{"text":"Liu, Shuguang 0000-0002-6027-3479 sliu@usgs.gov","orcid":"https://orcid.org/0000-0002-6027-3479","contributorId":147403,"corporation":false,"usgs":true,"family":"Liu","given":"Shuguang","email":"sliu@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":692874,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tan, Zhengxi 0000-0002-4136-0921 ztan@usgs.gov","orcid":"https://orcid.org/0000-0002-4136-0921","contributorId":2945,"corporation":false,"usgs":true,"family":"Tan","given":"Zhengxi","email":"ztan@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":692876,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chen, Mingshi mchen@usgs.gov","contributorId":4204,"corporation":false,"usgs":true,"family":"Chen","given":"Mingshi","email":"mchen@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":692872,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Liu, Jinxun 0000-0003-0561-8988 jxliu@usgs.gov","orcid":"https://orcid.org/0000-0003-0561-8988","contributorId":3414,"corporation":false,"usgs":true,"family":"Liu","given":"Jinxun","email":"jxliu@usgs.gov","affiliations":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":692871,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wein, Anne 0000-0002-5516-3697 awein@usgs.gov","orcid":"https://orcid.org/0000-0002-5516-3697","contributorId":589,"corporation":false,"usgs":true,"family":"Wein","given":"Anne","email":"awein@usgs.gov","affiliations":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"preferred":true,"id":692868,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Li, Zhengpeng","contributorId":80812,"corporation":false,"usgs":true,"family":"Li","given":"Zhengpeng","affiliations":[],"preferred":false,"id":692922,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Huang, Shengli shuang@usgs.gov","contributorId":1926,"corporation":false,"usgs":true,"family":"Huang","given":"Shengli","email":"shuang@usgs.gov","affiliations":[],"preferred":true,"id":692873,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Oeding, Jennifer joeding@usgs.gov","contributorId":4070,"corporation":false,"usgs":true,"family":"Oeding","given":"Jennifer","email":"joeding@usgs.gov","affiliations":[],"preferred":true,"id":692870,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Young, Claudia 0000-0002-0859-7206 claudia.young.ctr@usgs.gov","orcid":"https://orcid.org/0000-0002-0859-7206","contributorId":191382,"corporation":false,"usgs":true,"family":"Young","given":"Claudia","email":"claudia.young.ctr@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":692869,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Verma, Shashi B.","contributorId":76202,"corporation":false,"usgs":true,"family":"Verma","given":"Shashi B.","affiliations":[],"preferred":false,"id":692878,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Suyker, Andrew E.","contributorId":46857,"corporation":false,"usgs":true,"family":"Suyker","given":"Andrew","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":692877,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Faulkner, Stephen P. 0000-0001-5295-1383 faulkners@usgs.gov","orcid":"https://orcid.org/0000-0001-5295-1383","contributorId":374,"corporation":false,"usgs":true,"family":"Faulkner","given":"Stephen","email":"faulkners@usgs.gov","middleInitial":"P.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":692875,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}}
,{"id":70035522,"text":"70035522 - 2012 - Life history of the fluted kidneyshell <i>Ptychobranchus subtentum</i>","interactions":[],"lastModifiedDate":"2016-07-08T12:29:36","indexId":"70035522","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":737,"text":"American Midland Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Life history of the fluted kidneyshell <i>Ptychobranchus subtentum</i>","docAbstract":"<p><span>The fluted kidneyshell&nbsp;</span><i>Ptychobranchus subtentum</i><span>&nbsp;(Say, 1825) is a candidate for listing under the Endangered Species Act by the US Fish and Wildlife Service. Fecundity, fish hosts, and selected population demographics were determined during 2005&ndash;2006 for the fluted kidneyshell in the upper Clinch River, Hancock County, Tennessee. Females were fertilized in Aug. within a 5&nbsp;d period and contained viable glochidia about 4&nbsp;wk later. As the embryos began to develop, the marsupium gradually changed color from white to dark brown. Glochidia were contained within conglutinates that resemble Simuliidae pupae likely to attract benthic insectivorous fish and were held over winter and released in May. Fecundity was positively related to mussel length (r</span><sup>2</sup><span>&nbsp; =  0.81) and ranged from 43,000 to 500,000 glochidia. Eight species of darters (</span><i>Etheostoma</i><span>&nbsp;spp. and&nbsp;</span><i>Percina</i><span>&nbsp;spp.) were infested with glochidia in the laboratory to examine potential hosts and host suitability. Juveniles transformed on bluebreast darters&nbsp;</span><i>E. camurum</i><span>&nbsp;and dusky darters&nbsp;</span><i>P. sciera</i><span>and previously reported hosts: rainbow darters&nbsp;</span><i>E. caeruleum</i><span>&nbsp;and fantail darters&nbsp;</span><i>E. flabellare</i><span>. In addition, fantail darters and rainbow darters were infested with glochidia from two river systems. The median time of glochidial metamorphosis did not differ significantly between the two mussel populations. The observed ratio of adult females to males (1.9∶1) in the Clinch River differed significantly from 1∶1. Based upon thin-sections, individuals live to at least 26&nbsp;y and females become sexually mature at age five.</span></p>","largerWorkTitle":"American Midland Naturalist","language":"English","publisher":"University of Notre Dame","doi":"10.1674/0003-0031-167.1.79","issn":"00030031","usgsCitation":"Davis, V., and Layzer, J., 2012, Life history of the fluted kidneyshell <i>Ptychobranchus subtentum</i>: American Midland Naturalist, v. 167, no. 1, p. 79-95, https://doi.org/10.1674/0003-0031-167.1.79.","productDescription":"17 p.","startPage":"79","endPage":"95","numberOfPages":"17","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":243937,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Tennessee","county":"Hancock County","otherGeospatial":"Clinch River, Kyles Ford","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -80.980224609375,\n              37.405073750176946\n            ],\n            [\n              -81.23291015625,\n              37.405073750176946\n            ],\n            [\n              -81.683349609375,\n              37.26530995561875\n            ],\n            [\n              -82.628173828125,\n              37.01132594307015\n            ],\n            [\n              -82.96875,\n              36.84446074079564\n            ],\n            [\n              -83.199462890625,\n              36.721273880045004\n            ],\n            [\n              -83.726806640625,\n              36.633162095586556\n            ],\n            [\n              -83.990478515625,\n              36.53612263184686\n            ],\n            [\n              -84.00146484374999,\n              36.33282808737919\n            ],\n            [\n              -84.012451171875,\n              36.1733569352216\n            ],\n            [\n              -83.94653320312499,\n              36.04021586880111\n            ],\n            [\n              -83.8037109375,\n              35.99578538642032\n            ],\n            [\n              -83.51806640624999,\n              35.98689628443791\n            ],\n            [\n              -83.3203125,\n              35.98689628443791\n            ],\n            [\n              -83.1005859375,\n              35.969115075774845\n            ],\n            [\n              -82.85888671875,\n              36.02244668175846\n            ],\n            [\n              -82.694091796875,\n              36.05798104702501\n            ],\n            [\n              -82.254638671875,\n              36.27085020723905\n            ],\n            [\n              -81.88110351562499,\n              36.46547188679816\n            ],\n            [\n              -81.683349609375,\n              36.50963615733049\n            ],\n            [\n              -81.474609375,\n              36.58906837139909\n            ],\n            [\n              -80.947265625,\n              36.70365959719453\n            ],\n            [\n              -80.870361328125,\n              36.84446074079564\n            ],\n            [\n              -80.870361328125,\n              37.046408899699564\n            ],\n            [\n              -80.980224609375,\n              37.405073750176946\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"167","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4760e4b0c8380cd67845","contributors":{"authors":[{"text":"Davis, V.M.","contributorId":97345,"corporation":false,"usgs":true,"family":"Davis","given":"V.M.","email":"","affiliations":[],"preferred":false,"id":451068,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Layzer, J.B.","contributorId":53878,"corporation":false,"usgs":true,"family":"Layzer","given":"J.B.","affiliations":[],"preferred":false,"id":451067,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70035521,"text":"70035521 - 2012 - Using multitemporal remote sensing imagery and inundation measures to improve land change estimates in coastal wetlands","interactions":[],"lastModifiedDate":"2020-11-17T12:57:50.879427","indexId":"70035521","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","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":"Using multitemporal remote sensing imagery and inundation measures to improve land change estimates in coastal wetlands","docAbstract":"<p><span>Remote sensing imagery can be an invaluable resource to quantify land change in coastal wetlands. Obtaining an accurate measure of land change can, however, be complicated by differences in fluvial and tidal inundation experienced when the imagery is captured. This study classified Landsat imagery from two wetland areas in coastal Louisiana from 1983 to 2010 into categories of land and water. Tide height, river level, and date were used as independent variables in a multiple regression model to predict land area in the Wax Lake Delta (WLD) and compare those estimates with an adjacent marsh area lacking direct fluvial inputs. Coefficients of determination from regressions using both measures of water level along with date as predictor variables of land extent in the WLD, were higher than those obtained using the current methodology which only uses date to predict land change. Land change trend estimates were also improved when the data were divided by time period. Water level corrected land gain in the WLD from 1983 to 2010 was 1&nbsp;km</span><sup>2</sup><span>&nbsp;year</span><sup>−1</sup><span>, while rates in the adjacent marsh remained roughly constant. This approach of isolating environmental variability due to changing water levels improves estimates of actual land change in a dynamic system, so that other processes that may control delta development such as hurricanes, floods, and sediment delivery, may be further investigated.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s12237-011-9437-z","issn":"15592723","usgsCitation":"Allen, Y., Couvillion, B., and Barras, J., 2012, Using multitemporal remote sensing imagery and inundation measures to improve land change estimates in coastal wetlands: Estuaries and Coasts, v. 35, no. 1, p. 190-200, https://doi.org/10.1007/s12237-011-9437-z.","productDescription":"11 p.","startPage":"190","endPage":"200","costCenters":[],"links":[{"id":243907,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Lousianna","otherGeospatial":"Atchafalaya Deltas","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -91.6314697265625,\n              29.703560887190708\n            ],\n            [\n              -91.65481567382812,\n              29.543593066460595\n            ],\n            [\n              -91.51199340820312,\n              29.30077105450428\n            ],\n            [\n              -91.30462646484375,\n              29.31154884819602\n            ],\n            [\n              -91.14257812499999,\n              29.433617570990965\n            ],\n            [\n              -91.6314697265625,\n              29.703560887190708\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"35","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-09-02","publicationStatus":"PW","scienceBaseUri":"505bc019e4b08c986b329f1d","contributors":{"authors":[{"text":"Allen, Y.C.","contributorId":63761,"corporation":false,"usgs":true,"family":"Allen","given":"Y.C.","email":"","affiliations":[],"preferred":false,"id":451066,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Couvillion, B.R. 0000-0001-5323-1687","orcid":"https://orcid.org/0000-0001-5323-1687","contributorId":26540,"corporation":false,"usgs":true,"family":"Couvillion","given":"B.R.","affiliations":[],"preferred":false,"id":451064,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barras, J.A.","contributorId":44260,"corporation":false,"usgs":true,"family":"Barras","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":451065,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035398,"text":"70035398 - 2012 - An investigation of element ratios for assessing suspended-sediment sources in small agricultural basins","interactions":[],"lastModifiedDate":"2023-09-25T11:06:08.54295","indexId":"70035398","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3059,"text":"Physical Geography","active":true,"publicationSubtype":{"id":10}},"title":"An investigation of element ratios for assessing suspended-sediment sources in small agricultural basins","docAbstract":"Various sediment properties previously have been investigated for the purpose of determining sources of suspended sediment. A remaining research need is an assessment of element ratios for the determination of suspended-sediment sources in different terrestrial environments. In this study, 253 element ratios were assessed to determine which, if any, were potentially useful for sediment-source determinations in six small agricultural basins in northeastern Kansas, USA. Samples of surface soils (cropland and grassland), channel banks, and reservoir bottom sediments were collected, analyzed for 23 elements, and compared. Of the 253 element ratios assessed, only the Co/Pb and Co/Zn ratios were substantially and consistently different between the channel banks and surface soils for all six basins. For three of four reservoirs for which data were available, sediment-source estimates provided by Co/Pb ratios were in agreement with estimates previously provided using  137Cs. For two of the four reservoirs, sediment-source estimates provided by Co/Zn ratios were consistent with the  137Cs estimates. Thus, the Co/Pb ratio potentially may be more useful. Additional research is needed to ascertain whether or not the use of Co/Pb and Co/Zn ratios as tracers is widely applicable or restricted to specific terrestrial environments.","language":"English","publisher":"Taylor and Francis","doi":"10.2747/0272-3646.33.1.50","issn":"02723646","usgsCitation":"Juracek, K., 2012, An investigation of element ratios for assessing suspended-sediment sources in small agricultural basins: Physical Geography, v. 33, no. 1, p. 50-67, https://doi.org/10.2747/0272-3646.33.1.50.","productDescription":"18 p.","startPage":"50","endPage":"67","numberOfPages":"18","costCenters":[],"links":[{"id":215286,"rank":2,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2747/0272-3646.33.1.50"},{"id":243078,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"1","noUsgsAuthors":false,"publicationDate":"2013-05-15","publicationStatus":"PW","scienceBaseUri":"5059ea8fe4b0c8380cd48942","contributors":{"authors":[{"text":"Juracek, K.","contributorId":19795,"corporation":false,"usgs":true,"family":"Juracek","given":"K.","affiliations":[],"preferred":false,"id":450462,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70188363,"text":"70188363 - 2012 - ViscoSim Earthquake Simulator","interactions":[],"lastModifiedDate":"2017-06-07T11:43:45","indexId":"70188363","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3372,"text":"Seismological Research Letters","onlineIssn":"1938-2057","printIssn":"0895-0695","active":true,"publicationSubtype":{"id":10}},"title":"ViscoSim Earthquake Simulator","docAbstract":"<p><span>Synthetic seismicity simulations have been explored by the Southern California Earthquake Center (SCEC) Earthquake Simulators Group in order to guide long‐term forecasting efforts related to the Unified California Earthquake Rupture Forecast (</span><span class=\"xref-bibr\">Tullis <i>et&nbsp;al.</i>, 2012a</span><span>). In this study I describe the viscoelastic earthquake simulator (ViscoSim) of </span><span class=\"xref-bibr\">Pollitz, 2009</span><span>. Recapitulating to a large extent material previously presented by </span><span class=\"xref-bibr\">Pollitz (2009</span><span>, </span><span class=\"xref-bibr\">2011</span><span>) I describe its implementation of synthetic ruptures and how it differs from other simulators being used by the group.</span></p>","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0220120050","usgsCitation":"Pollitz, F., 2012, ViscoSim Earthquake Simulator: Seismological Research Letters, v. 83, no. 6, p. 979-982, https://doi.org/10.1785/0220120050.","productDescription":"4 p.","startPage":"979","endPage":"982","ipdsId":"IP-039430","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":342224,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"83","issue":"6","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2012-11-08","publicationStatus":"PW","scienceBaseUri":"593910b6e4b0764e6c5e8905","contributors":{"authors":[{"text":"Pollitz, Frederick 0000-0002-4060-2706 fpollitz@usgs.gov","orcid":"https://orcid.org/0000-0002-4060-2706","contributorId":139578,"corporation":false,"usgs":true,"family":"Pollitz","given":"Frederick","email":"fpollitz@usgs.gov","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":697405,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70188362,"text":"70188362 - 2012 - Stress imparted by the great 2004 Sumatra earthquake shut down transforms and activated rifts up to 400 km away in the Andaman Sea","interactions":[],"lastModifiedDate":"2017-06-07T11:39:20","indexId":"70188362","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3165,"text":"Proceedings of the National Academy of Sciences of the United States of America","active":true,"publicationSubtype":{"id":10}},"title":"Stress imparted by the great 2004 Sumatra earthquake shut down transforms and activated rifts up to 400 km away in the Andaman Sea","docAbstract":"<p><span>The origin and prevalence of triggered seismicity and remote aftershocks are under debate. As a result, they have been excluded from probabilistic seismic hazard assessment and aftershock hazard notices. The 2004 </span><i>M</i><span>&nbsp;=&nbsp;9.2 Sumatra earthquake altered seismicity in the Andaman backarc rift-transform system. Here we show that over a 300-km-long largely transform section of the backarc, </span><i>M</i><span>≥4.5 earthquakes stopped for five years, and over a 750-km-long backarc section, the rate of transform events dropped by two-thirds, while the rate of rift events increased eightfold. We compute the propagating dynamic stress wavefield and find the peak dynamic Coulomb stress is similar on the rifts and transforms. Long-period dynamic stress amplitudes, which are thought to promote dynamic failure, are higher on the transforms than on the rifts, opposite to the observations. In contrast to the dynamic stress, we calculate that the mainshock brought the transform segments approximately 0.2&nbsp;bar (0.02&nbsp;MPa) farther from static Coulomb failure and the rift segments approximately 0.2&nbsp;bar closer to static failure, consistent with the seismic observations. This accord means that changes in seismicity rate are sufficiently predictable to be included in post-mainshock hazard evaluations.</span></p>","language":"English","publisher":"PNAS","doi":"10.1073/pnas.1208799109","usgsCitation":"Sevilgen, V., Stein, R.S., and Pollitz, F., 2012, Stress imparted by the great 2004 Sumatra earthquake shut down transforms and activated rifts up to 400 km away in the Andaman Sea: Proceedings of the National Academy of Sciences of the United States of America, v. 109, no. 38, p. 15152-15156, https://doi.org/10.1073/pnas.1208799109.","productDescription":"5 p.","startPage":"15152","endPage":"15156","ipdsId":"IP-040389","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":474856,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1073/pnas.1208799109","text":"Publisher Index Page"},{"id":342222,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"109","issue":"38","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2012-09-04","publicationStatus":"PW","scienceBaseUri":"593910b6e4b0764e6c5e8907","contributors":{"authors":[{"text":"Sevilgen, Volkan vsevilgen@usgs.gov","contributorId":3254,"corporation":false,"usgs":true,"family":"Sevilgen","given":"Volkan","email":"vsevilgen@usgs.gov","affiliations":[],"preferred":true,"id":697404,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stein, Ross S. 0000-0001-7586-3933 rstein@usgs.gov","orcid":"https://orcid.org/0000-0001-7586-3933","contributorId":2604,"corporation":false,"usgs":true,"family":"Stein","given":"Ross","email":"rstein@usgs.gov","middleInitial":"S.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":697403,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pollitz, Fred F. fpollitz@usgs.gov","contributorId":2408,"corporation":false,"usgs":true,"family":"Pollitz","given":"Fred F.","email":"fpollitz@usgs.gov","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":697440,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70189204,"text":"70189204 - 2012 - MT3DMS: Model use, calibration, and validation","interactions":[],"lastModifiedDate":"2017-07-05T16:15:38","indexId":"70189204","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3619,"text":"Transactions of the ASABE","active":true,"publicationSubtype":{"id":10}},"title":"MT3DMS: Model use, calibration, and validation","docAbstract":"<p><span>MT3DMS is a three-dimensional multi-species solute transport model for solving advection, dispersion, and chemical reactions of contaminants in saturated groundwater flow systems. MT3DMS interfaces directly with the U.S. Geological Survey finite-difference groundwater flow model MODFLOW for the flow solution and supports the hydrologic and discretization features of MODFLOW. MT3DMS contains multiple transport solution techniques in one code, which can often be important, including in model calibration. Since its first release in 1990 as MT3D for single-species mass transport modeling, MT3DMS has been widely used in research projects and practical field applications. This article provides a brief introduction to MT3DMS and presents recommendations about calibration and validation procedures for field applications of MT3DMS. The examples presented suggest the need to consider alternative processes as models are calibrated and suggest opportunities and difficulties associated with using groundwater age in transport model calibration.</span></p>","language":"English","publisher":"ASABE","doi":"10.13031/2013.42263","usgsCitation":"Zheng, C., Hill, M.C., Cao, G., and Ma, R., 2012, MT3DMS: Model use, calibration, and validation: Transactions of the ASABE, v. 55, no. 4, p. 1549-1559, https://doi.org/10.13031/2013.42263.","productDescription":"11 p.","startPage":"1549","endPage":"1559","ipdsId":"IP-040350","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":343365,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"4","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"595dfab9e4b0d1f9f056a7b6","contributors":{"authors":[{"text":"Zheng, C.","contributorId":39976,"corporation":false,"usgs":true,"family":"Zheng","given":"C.","email":"","affiliations":[],"preferred":false,"id":703498,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hill, Mary C. mchill@usgs.gov","contributorId":974,"corporation":false,"usgs":true,"family":"Hill","given":"Mary","email":"mchill@usgs.gov","middleInitial":"C.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":703499,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cao, G.","contributorId":22970,"corporation":false,"usgs":true,"family":"Cao","given":"G.","email":"","affiliations":[],"preferred":false,"id":703500,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ma, R.","contributorId":17458,"corporation":false,"usgs":true,"family":"Ma","given":"R.","email":"","affiliations":[],"preferred":false,"id":703501,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70043372,"text":"70043372 - 2012 - Modeling of soil erosion and sediment transport in the East River Basin in southern China","interactions":[],"lastModifiedDate":"2013-02-26T11:39:08","indexId":"70043372","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Modeling of soil erosion and sediment transport in the East River Basin in southern China","docAbstract":"Soil erosion is a major global environmental problem that has caused many issues involving land degradation, sedimentation of waterways, ecological degradation, and nonpoint source pollution. Therefore, it is significant to understand the processes of soil erosion and sediment transport along rivers, and this can help identify the erosion prone areas and find potential measures to alleviate the environmental effects. In this study, we investigated soil erosion and identified the most seriously eroded areas in the East River Basin in southern China using a physically-based model, Soil and Water Assessment Tool (SWAT). We also introduced a classical sediment transport method (Zhang) into SWAT and compared it with the built-in Bagnold method in simulating sediment transport process along the river. The derived spatial soil erosion map and land use based erosion levels can explicitly illustrate the identification and prioritization of the critical soil erosion areas in this basin. Our results also indicate that erosion is quite sensitive to soil properties and slope. Comparison of Bagnold and Zhang methods shows that the latter can give an overall better performance especially in tracking the peak and low sediment concentrations along the river. We also found that the East River is mainly characterized by sediment deposition in most of the segments and at most times of a year. Overall, the results presented in this paper can provide decision support for watershed managers about where the best management practices (conservation measures) can be implemented effectively and at low cost. The methods we used in this study can also be of interest in sediment modeling for other basins worldwide.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Science of the Total Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.scitotenv.2012.09.057","usgsCitation":"Wu, Y., and Chen, J., 2012, Modeling of soil erosion and sediment transport in the East River Basin in southern China: Science of the Total Environment, v. 441, p. 159-168, https://doi.org/10.1016/j.scitotenv.2012.09.057.","productDescription":"10 p.","startPage":"159","endPage":"168","additionalOnlineFiles":"N","ipdsId":"IP-041116","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":268365,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":268364,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.scitotenv.2012.09.057"}],"country":"China","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 113.9323,22.9369 ], [ 113.9323,25.0047 ], [ 115.0351,25.0047 ], [ 115.0351,22.9369 ], [ 113.9323,22.9369 ] ] ] } } ] }","volume":"441","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd67e2e4b0b29085101af3","contributors":{"authors":[{"text":"Wu, Yping","contributorId":107582,"corporation":false,"usgs":true,"family":"Wu","given":"Yping","email":"","affiliations":[],"preferred":false,"id":473494,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chen, Ji","contributorId":101960,"corporation":false,"usgs":true,"family":"Chen","given":"Ji","email":"","affiliations":[],"preferred":false,"id":473493,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70043333,"text":"70043333 - 2012 - Old groundwater in parts of the upper Patapsco aquifer, Atlantic Coastal Plain, Maryland, USA: Evidence from radiocarbon, chlorine-36 and helium-4","interactions":[],"lastModifiedDate":"2018-03-21T15:43:23","indexId":"70043333","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","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":"Old groundwater in parts of the upper Patapsco aquifer, Atlantic Coastal Plain, Maryland, USA: Evidence from radiocarbon, chlorine-36 and helium-4","docAbstract":"<p>Apparent groundwater ages along two flow paths in the upper Patapsco aquifer of the Maryland Atlantic Coastal Plain, USA, were estimated using <sup>14</sup>C, <sup>36</sup>Cl and <sup>4</sup>He data. Most of the ages range from modern to about 500&nbsp;ka, with one sample at 117&nbsp;km downgradient from the recharge area dated by radiogenic <sup>4</sup>He accumulation at more than one Ma. Last glacial maximum (LGM) water was located about 20&nbsp;km downgradient on the northern flow path, where the radiocarbon age was 21.5&nbsp;ka, paleorecharge temperatures were 0.5–1.5  °C (a maximum cooling of about 12 °C relative to the modern mean annual temperature of 13 °C), and Cl<sup>–</sup>, Cl/Br, and stable isotopes of water were minimum. Low recharge temperatures (typically 5–7 °C) indicate that recharge occurred predominantly during glacial periods when coastal heads were lowest due to low sea-level stand. Flow velocities averaged about 1.0 m a<sup>–1</sup> in upgradient parts of the upper Patapsco aquifer and decreased from 0.13 to 0.04 m a<sup>–1</sup> at 40 and 80&nbsp;km further downgradient, respectively. This study demonstrates that most water in the upper Patapsco aquifer is non-renewable on human timescales under natural gradients, thus highlighting the importance of effective water-supply management to prolong the resource.</p>","language":"English","publisher":"Springer","doi":"10.1007/s10040-012-0871-1","usgsCitation":"Plummer, N., Eggleston, J.R., Raffensperger, J.P., Hunt, A.G., Casile, G.C., and Andreasen, D.C., 2012, Old groundwater in parts of the upper Patapsco aquifer, Atlantic Coastal Plain, Maryland, USA: Evidence from radiocarbon, chlorine-36 and helium-4: Hydrogeology Journal, v. 20, no. 7, p. 1269-1294, https://doi.org/10.1007/s10040-012-0871-1.","productDescription":"26 p.","startPage":"1269","endPage":"1294","additionalOnlineFiles":"N","ipdsId":"IP-036422","costCenters":[{"id":146,"text":"Branch of Regional Research-Eastern Region","active":false,"usgs":true}],"links":[{"id":270121,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maryland","county":"Anne Arundel","city":"Baltimore","volume":"20","issue":"7","noUsgsAuthors":false,"publicationDate":"2012-06-07","publicationStatus":"PW","scienceBaseUri":"5152c3a0e4b01197b08e9cdc","contributors":{"authors":[{"text":"Plummer, Niel 0000-0002-4020-1013 nplummer@usgs.gov","orcid":"https://orcid.org/0000-0002-4020-1013","contributorId":190100,"corporation":false,"usgs":true,"family":"Plummer","given":"Niel","email":"nplummer@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":473401,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eggleston, John R. 0000-0001-6633-3041 jegglest@usgs.gov","orcid":"https://orcid.org/0000-0001-6633-3041","contributorId":3068,"corporation":false,"usgs":true,"family":"Eggleston","given":"John","email":"jegglest@usgs.gov","middleInitial":"R.","affiliations":[{"id":614,"text":"Virginia Water Science Center","active":true,"usgs":true}],"preferred":true,"id":473403,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Raffensperger, Jeff P. 0000-0001-9275-6646 jpraffen@usgs.gov","orcid":"https://orcid.org/0000-0001-9275-6646","contributorId":199119,"corporation":false,"usgs":true,"family":"Raffensperger","given":"Jeff","email":"jpraffen@usgs.gov","middleInitial":"P.","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":true,"id":473405,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hunt, Andrew G. 0000-0002-3810-8610 ahunt@usgs.gov","orcid":"https://orcid.org/0000-0002-3810-8610","contributorId":1582,"corporation":false,"usgs":true,"family":"Hunt","given":"Andrew","email":"ahunt@usgs.gov","middleInitial":"G.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":473402,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Casile, Gerolamo C. jcasile@usgs.gov","contributorId":4007,"corporation":false,"usgs":true,"family":"Casile","given":"Gerolamo","email":"jcasile@usgs.gov","middleInitial":"C.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":473404,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Andreasen, D. C.","contributorId":32565,"corporation":false,"usgs":true,"family":"Andreasen","given":"D.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":473406,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70044149,"text":"70044149 - 2012 - Neoproterozoic tectonic evolution of the Jebel Saghro and Bou Azzer - El Graara inliers, eastern and central Anti-Atlas, Morocco","interactions":[],"lastModifiedDate":"2013-04-29T10:34:24","indexId":"70044149","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3112,"text":"Precambrian Research","active":true,"publicationSubtype":{"id":10}},"title":"Neoproterozoic tectonic evolution of the Jebel Saghro and Bou Azzer - El Graara inliers, eastern and central Anti-Atlas, Morocco","docAbstract":"New mapping, geochemistry, and 17 U–Pb SHRIMP zircon ages from rocks of the Sirwa, Bou Azzer–El Graara, and Jebel Saghro inliers constrain the Neoproterozoic evolution of the eastern Anti-Atlas during Pan-African orogenesis. In the Sirwa inlier, Tonian quartzite from the pre Pan-African passive margin deposits of the Mimount Formation contains detrital zircon derived entirely from the West African Craton (WAC), with most grains yielding Eburnean Paleoproterozoic ages of about 2050 Ma. Cryogenian Pan-African orogenic activity (PA1) from about 760 to 660 Ma included northward-dipping subduction to produce a volcanic arc, followed by ophiolite obduction onto the WAC. In the Bou Azzer–El Graara inlier, calc-alkaline granodiorite and quartz diorite, dated at 650–646 Ma, are syn- to post-tectonic with respect to the second period of Pan-African orogenesis (PA2), arc-continent accretion, and related greenschist facies metamorphism. Slab break-off and lithospheric delimination may have provided the source for the supra-subduction calc-alkaline plutons. At about 646 Ma, quartz diorite intruded the Tiddiline formation placing an upper limit on molassic deposition. Widespread Ediacaran high-K calc-alkaline to shoshonitic plutonism and volcanism during the final stage of Pan-African orogenesis (PA3) occurred in a setting related to either modification of the margin of the WAC or formation of a continental volcanic arc above a short-lived southward-dipping subduction zone. In the Saghro inlier, eight plutonic rocks yield ages ranging from about 588 to 556 Ma. Sampled plutonic rocks previously considered to be Cryogenian yielded Ediacaran ages. Peraluminous rhyolitic volcanic rocks in the lower part of the Ouarzazate Supergroup, including ash-flow tuffs of the Oued Dar’a caldera, yield ages between about 574 and 571 Ma. The Oued Dar’a caldera developed in a pull-apart graben produced by a left-step in a northeast-trending, left-lateral strike-slip fault zone, and much of the lower Ouarzazate Supergroup volcanic rocks in the area are probably related to caldera out-flow facies and collapse. Late stage PA3 intrusive rocks include the Bouskour–Sidi Flah and Timijt rhyolitic dike swarms at about 563 Ma, the voluminous pink Isk-n-Alla granite (559 &plusmn; 5 Ma), and volumetrically minor gabbro of Tagmout (556 &plusmn; 5 Ma). Rhyolite flows from the upper part of the Ouarzazate Supergroup, above a regional angular unconformity, yielded ages of 558 &plusmn; 4 and 556 &plusmn; 4 Ma. The youngest ages place an upper limit on block faulting and weak folding during latest Pan-African tectonic activity (PA3), coincident with the departure of the Cadomian crustal fragment from the northern margin of the WAC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Precambrian Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elesver","doi":"10.1016/j.precamres.2012.06.010","usgsCitation":"Walsh, G.J., Aleinikoff, J.N., Harrison, R., Burton, W.C., Quick, J.E., Benziane, F., Yazidi, A., and Saadane, A., 2012, Neoproterozoic tectonic evolution of the Jebel Saghro and Bou Azzer - El Graara inliers, eastern and central Anti-Atlas, Morocco: Precambrian Research, v. 216-219, p. 23-62, https://doi.org/10.1016/j.precamres.2012.06.010.","productDescription":"40 p.","startPage":"23","endPage":"62","numberOfPages":"40","ipdsId":"IP-038433","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":271604,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":271603,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.precamres.2012.06.010"}],"country":"Morocco","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 10.55,29.01 ], [ 10.55,32.02 ], [ -3.99,32.02 ], [ -3.99,29.01 ], [ 10.55,29.01 ] ] ] } } ] }","volume":"216-219","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"517f966be4b0e41721f7a373","contributors":{"authors":[{"text":"Walsh, Gregory J. 0000-0003-4264-8836 gwalsh@usgs.gov","orcid":"https://orcid.org/0000-0003-4264-8836","contributorId":873,"corporation":false,"usgs":true,"family":"Walsh","given":"Gregory","email":"gwalsh@usgs.gov","middleInitial":"J.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":474902,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aleinikoff, John N. 0000-0003-3494-6841 jaleinikoff@usgs.gov","orcid":"https://orcid.org/0000-0003-3494-6841","contributorId":1478,"corporation":false,"usgs":true,"family":"Aleinikoff","given":"John","email":"jaleinikoff@usgs.gov","middleInitial":"N.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":474904,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harrison, Richard W. rharriso@usgs.gov","contributorId":544,"corporation":false,"usgs":true,"family":"Harrison","given":"Richard W.","email":"rharriso@usgs.gov","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":474901,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burton, William C. 0000-0001-7519-5787 bburton@usgs.gov","orcid":"https://orcid.org/0000-0001-7519-5787","contributorId":1293,"corporation":false,"usgs":true,"family":"Burton","given":"William","email":"bburton@usgs.gov","middleInitial":"C.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":474903,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Quick, James E.","contributorId":21552,"corporation":false,"usgs":true,"family":"Quick","given":"James","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":474905,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Benziane, Foudad","contributorId":58920,"corporation":false,"usgs":true,"family":"Benziane","given":"Foudad","email":"","affiliations":[],"preferred":false,"id":474907,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Yazidi, Abdelaziz","contributorId":35212,"corporation":false,"usgs":true,"family":"Yazidi","given":"Abdelaziz","email":"","affiliations":[],"preferred":false,"id":474906,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Saadane, Abderrahim","contributorId":103161,"corporation":false,"usgs":true,"family":"Saadane","given":"Abderrahim","email":"","affiliations":[],"preferred":false,"id":474908,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70043410,"text":"70043410 - 2012 - Production and disposal of waste materials from gas and oil extraction from the Marcellus Shale Play in Pennsylvania","interactions":[],"lastModifiedDate":"2017-07-24T12:58:51","indexId":"70043410","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1559,"text":"Environmental Practice","active":true,"publicationSubtype":{"id":10}},"title":"Production and disposal of waste materials from gas and oil extraction from the Marcellus Shale Play in Pennsylvania","docAbstract":"The increasing world demand for energy has led to an increase in the exploration and extraction of natural gas, condensate, and oil from unconventional organic-rich shale plays. However, little is known about the quantity, transport, and disposal method of wastes produced during the extraction process. We examined the quantity of waste produced by gas extraction activities from the Marcellus Shale play in Pennsylvania for 2011. The main types of wastes included drilling cuttings and fluids from vertical and horizontal drilling and fluids generated from hydraulic fracturing [i.e., flowback and brine (formation) water]. Most reported drill cuttings (98.4%) were disposed of in landfills, and there was a high amount of interstate (49.2%) and interbasin (36.7%) transport. Drilling fluids were largely reused (70.7%), with little interstate (8.5%) and interbasin (5.8%) transport. Reported flowback water was mostly reused (89.8%) or disposed of in brine or industrial waste treatment plants (8.0%) and largely remained within Pennsylvania (interstate transport was 3.1%) with little interbasin transport (2.9%). Brine water was most often reused (55.7%), followed by disposal in injection wells (26.6%), and then disposed of in brine or industrial waste treatment plants (13.8%). Of the major types of fluid waste, brine water was most often transported to other states (28.2%) and to other basins (9.8%). In 2011, 71.5% of the reported brine water, drilling fluids, and flowback was recycled: 73.1% in the first half and 69.7% in the second half of 2011. Disposal of waste to municipal sewage treatment plants decreased nearly 100% from the first half to second half of 2011. When standardized against the total amount of gas produced, all reported wastes, except flowback sands, were less in the second half than the first half of 2011. Disposal of wastes into injection disposal wells increased 129.2% from the first half to the second half of 2011; other disposal methods decreased. Some issues with data were uncovered during the analytical process (e.g., correct geospatial location of disposal sites and the proper reporting of end use of waste) that obfuscated the analyses; correcting these issues will help future analyses.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Practice","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Cambridge University Press","publisherLocation":"Cambridge, UK","doi":"10.1017/S146604661200035X","usgsCitation":"Maloney, K.O., and Yoxtheimer, D.A., 2012, Production and disposal of waste materials from gas and oil extraction from the Marcellus Shale Play in Pennsylvania: Environmental Practice, v. 14, no. 4, p. 278-287, https://doi.org/10.1017/S146604661200035X.","productDescription":"10 p.","startPage":"278","endPage":"287","numberOfPages":"10","additionalOnlineFiles":"N","ipdsId":"IP-040757","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":270405,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":270404,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1017/S146604661200035X"}],"country":"United States","state":"Pennsylvania","volume":"14","issue":"4","noUsgsAuthors":false,"publicationDate":"2017-01-03","publicationStatus":"PW","scienceBaseUri":"515aac71e4b0105540728a60","contributors":{"authors":[{"text":"Maloney, Kelly O. 0000-0003-2304-0745 kmaloney@usgs.gov","orcid":"https://orcid.org/0000-0003-2304-0745","contributorId":4636,"corporation":false,"usgs":true,"family":"Maloney","given":"Kelly","email":"kmaloney@usgs.gov","middleInitial":"O.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":true,"id":473542,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yoxtheimer, David A.","contributorId":53672,"corporation":false,"usgs":true,"family":"Yoxtheimer","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":473543,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70044847,"text":"70044847 - 2012 - SHRIMP U-Pb ages of xenotime and monazite from the Spar Lake red bed-associated Cu-Ag deposit, western Montana: Implications for ore genesis","interactions":[],"lastModifiedDate":"2013-05-09T12:05:26","indexId":"70044847","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"SHRIMP U-Pb ages of xenotime and monazite from the Spar Lake red bed-associated Cu-Ag deposit, western Montana: Implications for ore genesis","docAbstract":"Xenotime occurs as epitaxial overgrowths on detrital zircons in the Mesoproterozoic Revett Formation (Belt Supergroup) at the Spar Lake red bed-associated Cu-Ag deposit, western Montana. The deposit formed during diagenesis of Revett strata, where oxidizing metal-bearing hydrothermal fluids encountered a reducing zone. Samples for geochronology were collected from several mineral zones. Xenotime overgrowths (1–30 μm wide) were found in polished thin sections from five ore and near-ore zones (chalcocite-chlorite, bornite-calcite, galena-calcite, chalcopyrite-ankerite, and pyrite-calcite), but not in more distant zones across the region. Thirty-two in situ SHRIMP U-Pb analyses on xenotime overgrowths yield a weighted average of <sup>207</sup>Pb/<sup>206</sup>Pb ages of 1409 ± 8 Ma, interpreted as the time of mineralization. This age is about 40 to 60 m.y. after deposition of the Revett Formation. Six other xenotime overgrowths formed during a younger event at 1304 ± 19 Ma. Several isolated grains of xenotime have <sup>207</sup>Pb/<sup>206</sup>Pb ages in the range of 1.67 to 1.51 Ga, and thus are considered detrital in origin. Trace element data can distinguish Spar Lake xenotimes of different origins. Based on in situ SHRIMP analysis, detrital xenotime has heavy rare earth elements-enriched patterns similar to those of igneous xenotime, whereas xenotime overgrowths of inferred hydrothermal origin have hump-shaped (i.e., middle rare earth elements-enriched) patterns. The two ages of hydrothermal xenotime can be distinguished by slightly different rare earth elements patterns. In addition, 1409 Ma xenotime overgrowths have higher Eu and Gd contents than the 1304 Ma overgrowths. Most xenotime overgrowths from the Spar Lake deposit have elevated As concentrations, further suggesting a genetic relationship between the xenotime formation and Cu-Ag mineralization.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Economic Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Econimic Geologists","doi":"10.2113/econgeo.107.6.1251","usgsCitation":"Aleinikoff, J.N., Hayes, T.S., Evans, K.V., Mazdab, F.K., Pillers, R.M., and Fanning, C., 2012, SHRIMP U-Pb ages of xenotime and monazite from the Spar Lake red bed-associated Cu-Ag deposit, western Montana: Implications for ore genesis: Economic Geology, v. 107, no. 6, p. 1251-1274, https://doi.org/10.2113/econgeo.107.6.1251.","startPage":"1251","endPage":"1274","numberOfPages":"24","ipdsId":"IP-020495","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":272139,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":272134,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/econgeo.107.6.1251"}],"country":"United States","state":"Montana","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -115.95,48.25 ], [ -115.95,48.27 ], [ -115.93,48.27 ], [ -115.93,48.25 ], [ -115.95,48.25 ] ] ] } } ] }","volume":"107","issue":"6","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"518cc569e4b05ebc8f7cc152","contributors":{"authors":[{"text":"Aleinikoff, John N. 0000-0003-3494-6841 jaleinikoff@usgs.gov","orcid":"https://orcid.org/0000-0003-3494-6841","contributorId":1478,"corporation":false,"usgs":true,"family":"Aleinikoff","given":"John","email":"jaleinikoff@usgs.gov","middleInitial":"N.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":476399,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hayes, Timothy S. thayes@usgs.gov","contributorId":1547,"corporation":false,"usgs":true,"family":"Hayes","given":"Timothy","email":"thayes@usgs.gov","middleInitial":"S.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":662,"text":"Western Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":476400,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Evans, Karl V. kvevans@usgs.gov","contributorId":194,"corporation":false,"usgs":true,"family":"Evans","given":"Karl","email":"kvevans@usgs.gov","middleInitial":"V.","affiliations":[],"preferred":true,"id":476398,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mazdab, Frank K.","contributorId":37468,"corporation":false,"usgs":true,"family":"Mazdab","given":"Frank","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":476402,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pillers, Renee M. 0000-0003-4929-1569 rpillers@usgs.gov","orcid":"https://orcid.org/0000-0003-4929-1569","contributorId":2501,"corporation":false,"usgs":true,"family":"Pillers","given":"Renee","email":"rpillers@usgs.gov","middleInitial":"M.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":476401,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fanning, C. Mark","contributorId":46814,"corporation":false,"usgs":true,"family":"Fanning","given":"C. Mark","affiliations":[],"preferred":false,"id":476403,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70042394,"text":"70042394 - 2012 - Methods","interactions":[],"lastModifiedDate":"2022-12-21T16:41:56.431625","indexId":"70042394","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"2","title":"Methods","docAbstract":"<p>Detecting declines in population size is one of the highest priorities of the shorebird initiatives in Canada and the United States. The quantitative goal is 80% power to detect a 50% decline, occurring during no more than 20 years, with a significance level of 0.15, using a two-tailed test, and incorporating effects of potential bias into the estimator. The Arctic PRISM program was designed to achieve this goal for arctic-nesting shorebird populations. The survey methods are an application of double sampling. Rapid surveys were made on a large number of plots selected from throughout arctic Alaska and Canada using stratified random sampling. Intensive surveys were made on a subsample of the plots to obtain detection rates, which were used to calibrate results from rapidly surveyed plots. Surveys will be made of the entire arctic region, each lasting several years and producing an estimate of average population size during the survey period. Results from two or more survey periods will be used to estimate change, or trend, in population size.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Arctic shorebirds in North America: A decade of monitoring","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"University of California Press","publisherLocation":"Berkeley, CA","usgsCitation":"Bart, J., Johnston, V., Smith, P., Manning, A., Rausch, J., and Brown, S., 2012, Methods, chap. 2 <i>of</i> Arctic shorebirds in North America: A decade of monitoring, v. 44, p. 9-16.","productDescription":"8 p.","startPage":"9","endPage":"16","numberOfPages":"8","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-025809","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":268326,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":297352,"type":{"id":15,"text":"Index Page"},"url":"https://www.ucpress.edu/book.php?isbn=9780520273108","linkFileType":{"id":5,"text":"html"}}],"volume":"44","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd66e1e4b0b29085101034","contributors":{"editors":[{"text":"Bart, Jonathan jon_bart@usgs.gov","contributorId":57025,"corporation":false,"usgs":true,"family":"Bart","given":"Jonathan","email":"jon_bart@usgs.gov","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":false,"id":509153,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Johnston, Victoria","contributorId":90185,"corporation":false,"usgs":true,"family":"Johnston","given":"Victoria","affiliations":[],"preferred":false,"id":509154,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Bart, Jonathan jon_bart@usgs.gov","contributorId":57025,"corporation":false,"usgs":true,"family":"Bart","given":"Jonathan","email":"jon_bart@usgs.gov","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"preferred":false,"id":471457,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnston, Victoria","contributorId":90185,"corporation":false,"usgs":true,"family":"Johnston","given":"Victoria","affiliations":[],"preferred":false,"id":471460,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, Paul A.","contributorId":73477,"corporation":false,"usgs":true,"family":"Smith","given":"Paul A.","affiliations":[],"preferred":false,"id":471458,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Manning, Ann","contributorId":79746,"corporation":false,"usgs":true,"family":"Manning","given":"Ann","email":"","affiliations":[],"preferred":false,"id":471459,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rausch, Jennie","contributorId":103938,"corporation":false,"usgs":true,"family":"Rausch","given":"Jennie","affiliations":[],"preferred":false,"id":471461,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Brown, Stephen","contributorId":40096,"corporation":false,"usgs":true,"family":"Brown","given":"Stephen","affiliations":[],"preferred":false,"id":471456,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70043804,"text":"70043804 - 2012 - The significance of 24-norcholestanes, triaromatic steroids and dinosteroids in oils and Cambrian-Ordovician source rocks from the cratonic region of the Tarim Basin, NW China","interactions":[],"lastModifiedDate":"2013-03-18T10:31:32","indexId":"70043804","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","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":"The significance of 24-norcholestanes, triaromatic steroids and dinosteroids in oils and Cambrian-Ordovician source rocks from the cratonic region of the Tarim Basin, NW China","docAbstract":"Two oil families in Ordovician reservoirs from the cratonic region of the Tarim Basin are distinguished by the distribution of regular steranes, triaromatic steroids, norcholestanes and dinosteroids. Oils with relatively lower contents of C<sub>28</sub> regular steranes, C<sub>26</sub> 20S, C<sub>26</sub> 20R + C<sub>27</sub> 20S and C<sub>27</sub> 20R regular triaromatic steroids, dinosteranes, 24-norcholestanes and triaromatic dinosteroids originated from Middle–Upper Ordovician source rocks. In contrast, oils with abnormally high abundances of the above compounds are derived from Cambrian and Lower Ordovician source rocks. Only a few oils have previously been reported to be of Cambrian and Lower Ordovician origin, especially in the east region of the Tarim Basin. This study further reports the discovery of oil accumulations of Cambrian and Lower Ordovician origin in the Tabei and Tazhong Uplifts, which indicates a potential for further discoveries involving Cambrian and Lower Ordovician sourced oils in the Tarim Basin. Dinosteroids in petroleum and ancient sediments are generally thought to be biomarkers for dinoflagellates and 24-norcholestanes for dinoflagellates and diatoms. Therefore, the abnormally high abundance of these compounds in extracts from the organic-rich sediments in the Cambrian and Lower Ordovician and related oils in the cratonic region of the Tarim Basin suggests that phytoplankton algae related to dinoflagellates have appeared and might have flourished in the Tarim Basin during the Cambrian Period. Steroids with less common structural configurations are underutilized and can expand understanding of the early development history of organisms, as well as define petroleum systems.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.apgeochem.2012.03.006","usgsCitation":"Li, M., Wang, T., Lillis, P.G., Wang, C., and Shi, S., 2012, The significance of 24-norcholestanes, triaromatic steroids and dinosteroids in oils and Cambrian-Ordovician source rocks from the cratonic region of the Tarim Basin, NW China: Applied Geochemistry, v. 27, no. 8, p. 1643-1654, https://doi.org/10.1016/j.apgeochem.2012.03.006.","productDescription":"12 p.","startPage":"1643","endPage":"1654","numberOfPages":"12","additionalOnlineFiles":"N","ipdsId":"IP-033796","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":269651,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":269650,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2012.03.006"}],"country":"China","otherGeospatial":"Tarim Basin","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 76.14,36.59 ], [ 76.14,41.70 ], [ 90.74,41.70 ], [ 90.74,36.59 ], [ 76.14,36.59 ] ] ] } } ] }","volume":"27","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"514837a6e4b022dd171afef7","contributors":{"authors":[{"text":"Li, Meijun","contributorId":73478,"corporation":false,"usgs":true,"family":"Li","given":"Meijun","affiliations":[],"preferred":false,"id":474257,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wang, T.-G.","contributorId":56387,"corporation":false,"usgs":true,"family":"Wang","given":"T.-G.","email":"","affiliations":[],"preferred":false,"id":474256,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lillis, Paul G. 0000-0002-7508-1699 plillis@usgs.gov","orcid":"https://orcid.org/0000-0002-7508-1699","contributorId":1817,"corporation":false,"usgs":true,"family":"Lillis","given":"Paul","email":"plillis@usgs.gov","middleInitial":"G.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":474253,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wang, Chunjiang","contributorId":15087,"corporation":false,"usgs":true,"family":"Wang","given":"Chunjiang","email":"","affiliations":[],"preferred":false,"id":474254,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Shi, Shengbao","contributorId":32419,"corporation":false,"usgs":true,"family":"Shi","given":"Shengbao","email":"","affiliations":[],"preferred":false,"id":474255,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70043364,"text":"70043364 - 2012 - Modeling of land use and reservoir effects on nonpoint source pollution in a highly agricultural basin","interactions":[],"lastModifiedDate":"2013-03-12T14:47:42","indexId":"70043364","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2259,"text":"Journal of Environmental Monitoring","active":true,"publicationSubtype":{"id":10}},"title":"Modeling of land use and reservoir effects on nonpoint source pollution in a highly agricultural basin","docAbstract":"Nonpoint source (NPS) pollution is tightly linked to land use activities that determine the sources and magnitudes of pollutant loadings to stream water. The pollutant loads may also be alleviated within reservoirs because of the physical interception resulting from changed hydrological regimes and other biochemical processes. It is important but challenging to assess the NPS pollution processes with human effects due to the measurement limitations. The objective of this study is to evaluate the effects of human activities such as land uses and reservoir operation on the hydrological and NPS pollution processes in a highly agricultural area-the Iowa River Basin-using the Soil and Water Assessment Tool (SWAT). The evaluation of model performance at multiple sites reveals that SWAT can consistently simulate the daily streamflow, and monthly/annual sediment and nutrient loads (nitrate nitrogen and mineral phosphorus) in the basin. We also used the calibrated model to estimate the trap efficiencies of sediment (&#126;78%) and nutrients (&#126;30%) in the Coralville Reservoir within the basin. These non-negligible effects emphasize the significance of incorporating the sediment and nutrient removal mechanisms into watershed system studies. The spatial quantification of the critical NPS pollution loads can help identify hot-spot areas that are likely locations for the best management practices.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Environmental Monitoring","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"RSC Publishing","publisherLocation":"London, UK","doi":"10.1039/C2EM30278K","usgsCitation":"Wu, Y., and Liu, S., 2012, Modeling of land use and reservoir effects on nonpoint source pollution in a highly agricultural basin: Journal of Environmental Monitoring, v. 14, no. 9, p. 2350-2361, https://doi.org/10.1039/C2EM30278K.","productDescription":"12 p.","startPage":"2350","endPage":"2361","numberOfPages":"12","additionalOnlineFiles":"N","ipdsId":"IP-025744","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":269172,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":269168,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1039/C2EM30278K"}],"country":"United States","state":"Iowa","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -93.9935,41.0483 ], [ -93.9935,43.8583 ], [ -89.9945,43.8583 ], [ -89.9945,41.0483 ], [ -93.9935,41.0483 ] ] ] } } ] }","volume":"14","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51404e83e4b089809dbf4494","contributors":{"authors":[{"text":"Wu, Yiping ywu@usgs.gov","contributorId":987,"corporation":false,"usgs":true,"family":"Wu","given":"Yiping","email":"ywu@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":473464,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Liu, Shu-Guang sliu@usgs.gov","contributorId":984,"corporation":false,"usgs":true,"family":"Liu","given":"Shu-Guang","email":"sliu@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":473463,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70046352,"text":"70046352 - 2012 - Upper Klamath Basin Landsat Image for August 19, 2006: Path 44 Row 31","interactions":[],"lastModifiedDate":"2013-06-10T11:38:29","indexId":"70046352","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Upper Klamath Basin Landsat Image for August 19, 2006: Path 44 Row 31","docAbstract":"This subset of a Landsat-5 image shows part of the upper Klamath Basin. The original images were obtained from the U.S. Geological Survey Earth Resources Observation and Science Center (EROS). EROS is responsible for archive management and distribution of Landsat data products. The Landsat-5 satellite is part of an ongoing mission to provide quality remote sensing data in support of research and applications activities. The launch of Landsat-5 on March 1, 1984 marks the addition of the fifth satellite to the Landsat series. The Landsat-5 satellite carries the Thematic Mapper (TM) sensor. More information on the Landsat program can be found online at http://landsat.usgs.gov/.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70046352","usgsCitation":"Snyder, D.T., 2012, Upper Klamath Basin Landsat Image for August 19, 2006: Path 44 Row 31, Dataset, https://doi.org/10.3133/70046352.","productDescription":"Dataset","costCenters":[],"links":[{"id":273508,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":273506,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/erosl1t_08192006_p44r31_l5_usgs_1_NAD83.xml"}],"country":"United States","state":"Oregon","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.382600,41.991760 ], [ -123.382600,43.492919 ], [ -120.601579,43.492919 ], [ -120.601579,41.991760 ], [ -123.382600,41.991760 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51b6f56ee4b0097a7158e60f","contributors":{"authors":[{"text":"Snyder, Daniel T. dtsnyder@usgs.gov","contributorId":820,"corporation":false,"usgs":true,"family":"Snyder","given":"Daniel","email":"dtsnyder@usgs.gov","middleInitial":"T.","affiliations":[],"preferred":true,"id":479539,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
]}