{"pageNumber":"692","pageRowStart":"17275","pageSize":"25","recordCount":68919,"records":[{"id":70173603,"text":"70173603 - 2012 - Native rainbow smelt and nonnative alewife distribution related to temperature and light gradients in Lake Champlain","interactions":[],"lastModifiedDate":"2016-06-07T16:04:12","indexId":"70173603","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Native rainbow smelt and nonnative alewife distribution related to temperature and light gradients in Lake Champlain","docAbstract":"

Alewife (Alosa pseudoharengus) recently became established in Lake Champlain and may compete with native rainbow smelt (Osmerus mordax) for food or consume larval rainbow smelt. The strength of this effect depends partly on the spatial and temporal overlap of different age groups of the two species; therefore, we need a better understanding of factors affecting alewife and rainbow smelt distributions in Lake Champlain. We used hydroacoustics, trawls, and gill nets to document vertical fish distribution, and recorded environmental data during 16 day–night surveys over two years. Temperature, temperature change, and light were all predictors of adult and age-0 rainbow smelt distribution, and temperature and light were predictors of age-0 alewives' distribution (based on GAMM models evaluated with AIC). Adult alewives were 5–30 m shallower and age-0 alewives were 2–15 m shallower than their rainbow smelt counterparts. Adult rainbow smelt distribution overlapped with age-0 rainbow smelt and age-0 alewives near the thermocline (10–25 m), whereas adult alewives were shallower (0–6 m) and overlapped with age-0 alewives and rainbow smelt in the epilimnion. Adult rainbow smelt were in water < 10–12 °C, whereas age-0 rainbow smelt were in 10–20 °C, and adult and age-0 alewives were in 15–22 °C water. Predicting these species distributions is necessary for quantifying the strength of predatory and competitive interactions between alewife and rainbow smelt, as well as between alewife and other fish species in Lake Champlain.

","language":"English","publisher":"Elsevier","doi":"10.1016/j.jglr.2011.06.002","usgsCitation":"Parrish, D.L., Simonin, P.W., Rudstam, L.G., Sullivan, P., and Pientka, B., 2012, Native rainbow smelt and nonnative alewife distribution related to temperature and light gradients in Lake Champlain: Journal of Great Lakes Research, v. 38, no. 1, p. 115-122, https://doi.org/10.1016/j.jglr.2011.06.002.","productDescription":"8 p.","startPage":"115","endPage":"122","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-025329","costCenters":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"links":[{"id":323221,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Vermont","otherGeospatial":"Lake Champlain","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -73.22250366210938,\n 44.457309801319305\n ],\n [\n -73.29391479492188,\n 44.46025037930627\n ],\n [\n -73.33511352539062,\n 44.3670601700202\n ],\n [\n -73.21563720703125,\n 44.37196862007497\n ],\n [\n -73.21975708007812,\n 44.449467536006935\n ],\n [\n -73.22250366210938,\n 44.457309801319305\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"38","issue":"1","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5757f062e4b04f417c24dcf6","contributors":{"authors":[{"text":"Parrish, Donna L. 0000-0001-9693-6329 dparrish@usgs.gov","orcid":"https://orcid.org/0000-0001-9693-6329","contributorId":138661,"corporation":false,"usgs":true,"family":"Parrish","given":"Donna","email":"dparrish@usgs.gov","middleInitial":"L.","affiliations":[{"id":199,"text":"Coop Res Unit Leetown","active":true,"usgs":true}],"preferred":true,"id":637392,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Simonin, Paul W.","contributorId":171499,"corporation":false,"usgs":false,"family":"Simonin","given":"Paul","email":"","middleInitial":"W.","affiliations":[{"id":18160,"text":"Rubenstein School of Environment and Natural Resources, University of Vermont","active":true,"usgs":false}],"preferred":false,"id":637741,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rudstam, Lars G.","contributorId":56609,"corporation":false,"usgs":false,"family":"Rudstam","given":"Lars","email":"","middleInitial":"G.","affiliations":[{"id":12722,"text":"Cornell University","active":true,"usgs":false}],"preferred":false,"id":637742,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sullivan, Patrick J.","contributorId":97813,"corporation":false,"usgs":true,"family":"Sullivan","given":"Patrick J.","affiliations":[],"preferred":false,"id":637743,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pientka, Bernard","contributorId":171500,"corporation":false,"usgs":false,"family":"Pientka","given":"Bernard","email":"","affiliations":[],"preferred":false,"id":637744,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70176603,"text":"70176603 - 2012 - Overwintering tadpoles and loss of fitness correlates in Polypedates braueri tadpoles that use artificial pools in a lowland agroecosystem","interactions":[],"lastModifiedDate":"2017-05-03T13:08:54","indexId":"70176603","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1892,"text":"Herpetologica","active":true,"publicationSubtype":{"id":10}},"title":"Overwintering tadpoles and loss of fitness correlates in Polypedates braueri tadpoles that use artificial pools in a lowland agroecosystem","docAbstract":"

We studied growth, development, and metamorphic traits of Polypedates braueri tadpoles in Taiwan to elucidate the cause of tadpole overwintering in man-made water containers in lowland orchards on the Bagua Terrace. Polypedates braueri bred from March to August, but tadpoles were present year round. Laboratory experiments demonstrated that tadpole overwintering was facultative; low temperatures and limited food retarded both growth and development, resulting in overwintering in the tadpole stage. Tadpoles at the lowest experimental temperature (15°C) never reached metamorphosis. A field experiment demonstrated that 78, 28, and 4% of tadpoles raised in high, medium, and low food regimes, respectively, metamorphosed before the onset of winter. Tadpoles that did not metamorphose by fall continued to grow slowly and either metamorphosed during the winter or the following spring. These findings indicate that food availability plays a key role in inducing overwintering in tadpoles. Jumping performance of metamorphs was positively correlated with food regimes, but body lipid content was significantly higher in metamorphs raised with either low or high food regimes than in those with medium levels of food. Overwintering by P. braueritadpoles has not been previously reported; however, agricultural activities have created new breeding habitats (i.e., man-made bodies of water), some of which are sufficiently food-limited that tadpoles overwinter to complete development and metamorphosis. An understanding of the survivorship, life history traits, and physiology of these frogs is needed to shed light on how man-made breeding sites affect the population dynamics of native frog populations.

","language":"English","publisher":"The Herpetologists' League","doi":"10.1655/HERPETOLOGICA-D-11-00042.1","usgsCitation":"Hsu, J., Kam, Y., and Fellers, G.M., 2012, Overwintering tadpoles and loss of fitness correlates in Polypedates braueri tadpoles that use artificial pools in a lowland agroecosystem: Herpetologica, v. 68, no. 2, p. 184-194, https://doi.org/10.1655/HERPETOLOGICA-D-11-00042.1.","productDescription":"11 p.","startPage":"184","endPage":"194","ipdsId":"IP-029855","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":328870,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"68","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57f7f3b2e4b0bc0bec0a0b1d","contributors":{"authors":[{"text":"Hsu, Juei-Ling","contributorId":174812,"corporation":false,"usgs":false,"family":"Hsu","given":"Juei-Ling","email":"","affiliations":[],"preferred":false,"id":649347,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kam, Yeong-Choy","contributorId":9618,"corporation":false,"usgs":true,"family":"Kam","given":"Yeong-Choy","email":"","affiliations":[],"preferred":false,"id":649348,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fellers, Gary M. 0000-0003-4092-0285 gary_fellers@usgs.gov","orcid":"https://orcid.org/0000-0003-4092-0285","contributorId":3150,"corporation":false,"usgs":true,"family":"Fellers","given":"Gary","email":"gary_fellers@usgs.gov","middleInitial":"M.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":649349,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70175236,"text":"70175236 - 2012 - Power analysis and trend detection for water quality monitoring data. An application for the Greater Yellowstone Inventory and Monitoring Network","interactions":[],"lastModifiedDate":"2016-08-31T13:55:37","indexId":"70175236","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":53,"text":"Natural Resource Report","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"NPS/GRYN/NRR-2012/556","title":"Power analysis and trend detection for water quality monitoring data. An application for the Greater Yellowstone Inventory and Monitoring Network","docAbstract":"

An important consideration for long term monitoring programs is determining the required sampling effort to detect trends in specific ecological indicators of interest. To enhance the Greater Yellowstone Inventory and Monitoring Network’s water resources protocol(s) (O’Ney 2006 and O’Ney et al. 2009 [under review]), we developed a set of tools to: (1) determine the statistical power for detecting trends of varying magnitude in a specified water quality parameter over different lengths of sampling (years) and different within-year collection frequencies (monthly or seasonal sampling) at particular locations using historical data, and (2) perform periodic trend analyses for water quality parameters while addressing seasonality and flow weighting.

A power analysis for trend detection is a statistical procedure used to estimate the probability of rejecting the hypothesis of no trend when in fact there is a trend, within a specific modeling framework. In this report, we base our power estimates on using the seasonal Kendall test (Helsel and Hirsch 2002) for detecting trend in water quality parameters measured at fixed locations over multiple years. We also present procedures (R-scripts) for conducting a periodic trend analysis using the seasonal Kendall test with and without flow adjustment. This report provides the R-scripts developed for power and trend analysis, tutorials, and the associated tables and graphs. The purpose of this report is to provide practical information for monitoring network staff on how to use these statistical tools for water quality monitoring data sets.

","language":"English","publisher":"National Park Service","usgsCitation":"Irvine, K.M., Manlove, K., and Hollimon, C., 2012, Power analysis and trend detection for water quality monitoring data. An application for the Greater Yellowstone Inventory and Monitoring Network: Natural Resource Report NPS/GRYN/NRR-2012/556, ix, 65 p.","productDescription":"ix, 65 p.","numberOfPages":"75","ipdsId":"IP-037155","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":328141,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":328140,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://irma.nps.gov/DataStore/Reference/Profile/2187418"}],"publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57c7ffbde4b0f2f0cebfc323","contributors":{"authors":[{"text":"Irvine, Kathryn M. 0000-0002-6426-940X kirvine@usgs.gov","orcid":"https://orcid.org/0000-0002-6426-940X","contributorId":2218,"corporation":false,"usgs":true,"family":"Irvine","given":"Kathryn","email":"kirvine@usgs.gov","middleInitial":"M.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":644467,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Manlove, Kezia","contributorId":68204,"corporation":false,"usgs":true,"family":"Manlove","given":"Kezia","affiliations":[],"preferred":false,"id":644469,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Hollimon, Cynthia","contributorId":173384,"corporation":false,"usgs":false,"family":"Hollimon","given":"Cynthia","email":"","affiliations":[{"id":5120,"text":"Montana State University, Department of Mathematical Sciences, Bozeman, MT 59717","active":true,"usgs":false}],"preferred":false,"id":644468,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}} ,{"id":70045010,"text":"70045010 - 2012 - Pathogenic human viruses are present in residential canals","interactions":[],"lastModifiedDate":"2015-03-20T15:05:29","indexId":"70045010","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Pathogenic human viruses are present in residential canals","docAbstract":"

No abstract available.

","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":"Griffin, D., 2012, Pathogenic human viruses are present in residential canals, chap. of Tropical connections: south Florida's marine environment, p. 145-146.","productDescription":"2 p.","startPage":"145","endPage":"146","numberOfPages":"2","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":288,"text":"Florida Water Science Center-Tallahassee","active":false,"usgs":true}],"links":[{"id":270216,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Florida Keys","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -82.9875,24.3963 ], [ -82.9875,25.3543 ], [ -80.1502,25.3543 ], [ -80.1502,24.3963 ], [ -82.9875,24.3963 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5152c3afe4b01197b08e9cea","contributors":{"authors":[{"text":"Griffin, Dale W.","contributorId":23668,"corporation":false,"usgs":true,"family":"Griffin","given":"Dale W.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":476616,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70046687,"text":"70046687 - 2012 - Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for September 2004","interactions":[],"lastModifiedDate":"2013-06-25T11:13:31","indexId":"70046687","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for September 2004","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70046687","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2012, Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for September 2004, Dataset, https://doi.org/10.3133/70046687.","productDescription":"Dataset","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":274142,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":274141,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/mosaic_et_september2004_kl_NAD83.xml"}],"country":"United States","state":"Oregon","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.425204,41.972926 ], [ -123.425204,43.490807 ], [ -120.483416,43.490807 ], [ -120.483416,41.972926 ], [ -123.425204,41.972926 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51cabbe3e4b0d298e5434c56","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":535558,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70046681,"text":"70046681 - 2012 - Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for October 2006","interactions":[],"lastModifiedDate":"2013-06-24T14:18:59","indexId":"70046681","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for October 2006","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70046681","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2012, Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for October 2006, Dataset, https://doi.org/10.3133/70046681.","productDescription":"Dataset","costCenters":[],"links":[{"id":274125,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":274122,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/mosaic_et_october2006_kl_NAD83.xml"}],"country":"United States","state":"Oregon","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.425204,41.972926 ], [ -123.425204,43.490807 ], [ -120.483416,43.490807 ], [ -120.483416,41.972926 ], [ -123.425204,41.972926 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51c96a67e4b0a50a6e8f5803","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":535557,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70046680,"text":"70046680 - 2012 - Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for October 2004","interactions":[],"lastModifiedDate":"2013-06-24T14:13:10","indexId":"70046680","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for October 2004","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70046680","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2012, Klamath Basin Restoration Agreement Off-Project Water Program Evapotranspiration Map for October 2004, Dataset, https://doi.org/10.3133/70046680.","productDescription":"Dataset","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":274121,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":274120,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/mosaic_et_october2004_kl_NAD83.xml"}],"country":"United States","state":"Oregon","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.425204,41.972926 ], [ -123.425204,43.490807 ], [ -120.483416,43.490807 ], [ -120.483416,41.972926 ], [ -123.425204,41.972926 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51c96a66e4b0a50a6e8f57ff","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":535556,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70046688,"text":"70046688 - 2012 - Klamath Basin Restoration Agreement Off-Project Water Program evapotranspiration map for September 2004","interactions":[],"lastModifiedDate":"2013-06-25T11:32:59","indexId":"70046688","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Klamath Basin Restoration Agreement Off-Project Water Program evapotranspiration map for September 2004","language":"English","publisher":"U.S. Geological Service","publisherLocation":"Reston, VA","doi":"10.3133/70046688","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2012, Klamath Basin Restoration Agreement Off-Project Water Program evapotranspiration map for September 2004, Dataset, https://doi.org/10.3133/70046688.","productDescription":"Dataset","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":274144,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":274143,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/mosaic_et_september2004_kl_NAD83.xml"}],"country":"United States","state":"Oregon","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.425204,41.972926 ], [ -123.425204,43.490807 ], [ -120.483416,43.490807 ], [ -120.483416,41.972926 ], [ -123.425204,41.972926 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51cabbe3e4b0d298e5434c5e","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":535559,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70046662,"text":"70046662 - 2012 - Long term mean annual water temperature for stream reaches in Pacific Northwest United States","interactions":[],"lastModifiedDate":"2013-06-18T15:34:56","indexId":"70046662","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Long term mean annual water temperature for stream reaches in Pacific Northwest United States","docAbstract":"Long-term mean annual water temperature (degrees Celsius) was estimated for the E2RF1 stream network (Brakebill and Terziotti, 2011) located within the Pacific Northwest region of the United States (HUC2 = 17; the Columbia River basin, the Puget Sound watershed, the coastal drainages of Washington and Oregon, and the closed basins in southern Oregon). Multiple linear regressions were used to select reach-scale watershed attributes (explanatory variables) for predicting the long-term mean annual water temperature (dependent variable) at a set of USGS water-quality monitoring stations. The results from the multiple linear regressions were used to predict the long-term mean water temperature for the Pacific Northwest reaches in the E2RF1 network.","language":"English","publisher":"U.S. Geological Service","publisherLocation":"Reston, VA","doi":"10.3133/70046662","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2012, Long term mean annual water temperature for stream reaches in Pacific Northwest United States, Dataset, https://doi.org/10.3133/70046662.","productDescription":"Dataset","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":273956,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":273955,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/mean_water_temp_streams.xml"}],"country":"United States","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -127.859452,23.243486 ], [ -127.859452,51.549102 ], [ -65.377389,51.549102 ], [ -65.377389,23.243486 ], [ -127.859452,23.243486 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51c18169e4b0dd0e00d921ed","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":535553,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70046689,"text":"70046689 - 2012 - Klamath Basin Restoration Agreement Off-Project Water Program Total Evapotranspiration Map for April to October 2004","interactions":[],"lastModifiedDate":"2013-06-25T11:50:10","indexId":"70046689","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Klamath Basin Restoration Agreement Off-Project Water Program Total Evapotranspiration Map for April to October 2004","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70046689","usgsCitation":"Water Resources Division, U.S. Geological Survey, 2012, Klamath Basin Restoration Agreement Off-Project Water Program Total Evapotranspiration Map for April to October 2004, Dataset, https://doi.org/10.3133/70046689.","productDescription":"Dataset","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":274147,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":274146,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/mosaiced_total_et_april_october_2004_NAD83.xml"}],"country":"United States","state":"Oregon","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.425204,41.972926 ], [ -123.425204,43.490807 ], [ -120.483416,43.490807 ], [ -120.483416,41.972926 ], [ -123.425204,41.972926 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51cabbe3e4b0d298e5434c5a","contributors":{"authors":[{"text":"Water Resources Division, U.S. Geological Survey","contributorId":128075,"corporation":true,"usgs":false,"organization":"Water Resources Division, U.S. Geological Survey","id":535560,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70045342,"text":"70045342 - 2012 - Conditions and processes affecting radionuclide transport","interactions":[],"lastModifiedDate":"2015-01-13T11:32:12","indexId":"70045342","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1726,"text":"GSA Memoirs","active":true,"publicationSubtype":{"id":10}},"title":"Conditions and processes affecting radionuclide transport","docAbstract":"

Characteristics of host rocks, secondary minerals, and fluids would affect the transport of radionuclides from a previously proposed repository at Yucca Mountain, Nevada. Minerals in the Yucca Mountain tuffs that are important for retarding radionuclides include clinoptilolite and mordenite (zeolites), clay minerals, and iron and manganese oxides and hydroxides. Water compositions along flow paths beneath Yucca Mountain are controlled by dissolution reactions, silica and calcite precipitation, and ion-exchange reactions. Radionuclide concentrations along flow paths from a repository could be limited by (1) low waste-form dissolution rates, (2) low radionuclide solubility, and (3) radionuclide sorption onto geological media.

\n

The chief sources of radioactivity in spent nuclear fuel are americium, plutonium, and neptunium. Therefore, studies have concentrated on their geochemical mobility. Uranium-233, uranium-234, iodine-129, technetium-99, and other radionuclides also have been included in some experiments. Solubilities were determined experimentally in representative Yucca Mountain waters. Sorption coefficients were determined using water, rock, and pure mineral samples from Yucca Mountain. Batch experiments were performed at several pH levels and oxidizing conditions. Dynamic transport-column experiments, diffusion experiments, and solid-rock beaker experiments also were conducted. The batch tests gave slightly lower retardation factors than those derived from column-breakthrough experiments. This finding indicates that using batch-sorption coefficients to predict radionuclide transport will yield conservative results in a performance assessment.

\n

Understanding of unsaturated-zone transport is based on laboratory and field-scale experiments. Fractures provide advective transport pathways. Sorption and matrix diffusion may contribute to retardation of radionuclides. Conversely, sorption onto mobile colloids may enhance radionuclide transport.

","language":"English","publisher":"Geological Society of America","doi":"10.1130/2012.1209(06)","usgsCitation":"Simmons, A.M., and Neymark, L.A., 2012, Conditions and processes affecting radionuclide transport: GSA Memoirs, v. 209, p. 277-362, https://doi.org/10.1130/2012.1209(06).","productDescription":"86 p.","startPage":"277","endPage":"362","numberOfPages":"86","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-025158","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":271326,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"209","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51751748e4b074c2b05564b4","contributors":{"authors":[{"text":"Simmons, Ardyth M.","contributorId":94412,"corporation":false,"usgs":true,"family":"Simmons","given":"Ardyth","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":477267,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Neymark, Leonid A. lneymark@usgs.gov","contributorId":532,"corporation":false,"usgs":true,"family":"Neymark","given":"Leonid","email":"lneymark@usgs.gov","middleInitial":"A.","affiliations":[{"id":218,"text":"Denver Federal Center","active":false,"usgs":true}],"preferred":false,"id":477266,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70045351,"text":"70045351 - 2012 - Multi-gauge Calibration for modeling the Semi-Arid Santa Cruz Watershed in Arizona-Mexico Border Area Using SWAT","interactions":[],"lastModifiedDate":"2013-04-22T14:33:36","indexId":"70045351","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":686,"text":"Air, Soil and Water Research","active":true,"publicationSubtype":{"id":10}},"title":"Multi-gauge Calibration for modeling the Semi-Arid Santa Cruz Watershed in Arizona-Mexico Border Area Using SWAT","docAbstract":"In most watershed-modeling studies, flow is calibrated at one monitoring site, usually at the watershed outlet. Like many arid and semi-arid watersheds, the main reach of the Santa Cruz watershed, located on the Arizona-Mexico border, is discontinuous for most of the year except during large flood events, and therefore the flow characteristics at the outlet do not represent the entire watershed. Calibration is required at multiple locations along the Santa Cruz River to improve model reliability. The objective of this study was to best portray surface water flow in this semiarid watershed and evaluate the effect of multi-gage calibration on flow predictions. In this study, the Soil and Water Assessment Tool (SWAT) was calibrated at seven monitoring stations, which improved model performance and increased the reliability of flow, in the Santa Cruz watershed. The most sensitive parameters to affect flow were found to be curve number (CN2), soil evaporation and compensation coefficient (ESCO), threshold water depth in shallow aquifer for return flow to occur (GWQMN), base flow alpha factor (Alpha_Bf), and effective hydraulic conductivity of the soil layer (Ch_K2). In comparison, when the model was established with a single calibration at the watershed outlet, flow predictions at other monitoring gages were inaccurate. This study emphasizes the importance of multi-gage calibration to develop a reliable watershed model in arid and semiarid environments. The developed model, with further calibration of water quality parameters will be an integral part of the Santa Cruz Watershed Ecosystem Portfolio Model (SCWEPM), an online decision support tool, to assess the impacts of climate change and urban growth in the Santa Cruz watershed.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Air, Soil and Water Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Libertas Academica Ltd.","publisherLocation":"Auckland, New Zealand","doi":"10.4137/ASWR.S9410","usgsCitation":"Niraula, R., Norman, L.A., Meixner, T., and Callegary, J.B., 2012, Multi-gauge Calibration for modeling the Semi-Arid Santa Cruz Watershed in Arizona-Mexico Border Area Using SWAT: Air, Soil and Water Research, v. 2012, no. 5, p. 41-57, https://doi.org/10.4137/ASWR.S9410.","productDescription":"17 p.","startPage":"41","endPage":"57","numberOfPages":"17","ipdsId":"IP-033521","costCenters":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true}],"links":[{"id":474662,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.4137/aswr.s9410","text":"Publisher Index Page"},{"id":271377,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":271378,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.4137/ASWR.S9410"}],"country":"United States","state":"Arizona","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -111.213226,31.210452 ], [ -111.213226,32.345162 ], [ -110.67627,32.345162 ], [ -110.67627,31.210452 ], [ -111.213226,31.210452 ] ] ] } } ] }","volume":"2012","issue":"5","noUsgsAuthors":false,"publicationDate":"2012-04-30","publicationStatus":"PW","scienceBaseUri":"51765bebe4b0f989f99e0107","contributors":{"authors":[{"text":"Niraula, Rewati","contributorId":100714,"corporation":false,"usgs":false,"family":"Niraula","given":"Rewati","email":"","affiliations":[{"id":7042,"text":"University of Arizona","active":true,"usgs":false}],"preferred":false,"id":477274,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Norman, Laura A.","contributorId":108003,"corporation":false,"usgs":true,"family":"Norman","given":"Laura","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":477275,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meixner, Thomas","contributorId":22653,"corporation":false,"usgs":false,"family":"Meixner","given":"Thomas","email":"","affiliations":[{"id":7042,"text":"University of Arizona","active":true,"usgs":false}],"preferred":false,"id":477273,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Callegary, James B. 0000-0003-3604-0517 jcallega@usgs.gov","orcid":"https://orcid.org/0000-0003-3604-0517","contributorId":2171,"corporation":false,"usgs":true,"family":"Callegary","given":"James","email":"jcallega@usgs.gov","middleInitial":"B.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":477272,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70045211,"text":"70045211 - 2012 - Results of the first North American comparison of absolute gravimeters, NACAG-2010","interactions":[],"lastModifiedDate":"2013-05-07T11:54:22","indexId":"70045211","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2303,"text":"Journal of Geodesy","active":true,"publicationSubtype":{"id":10}},"title":"Results of the first North American comparison of absolute gravimeters, NACAG-2010","docAbstract":"The first North American Comparison of absolute gravimeters (NACAG-2010) was hosted by the National Oceanic and Atmospheric Administration at its newly renovated Table Mountain Geophysical Observatory (TMGO) north of Boulder, Colorado, in October 2010. NACAG-2010 and the renovation of TMGO are part of NGS’s GRAV-D project (Gravity for the Redefinition of the American Vertical Datum). Nine absolute gravimeters from three countries participated in the comparison. Before the comparison, the gravimeter operators agreed to a protocol describing the strategy to measure, calculate, and present the results. Nine sites were used to measure the free-fall acceleration of g. Each gravimeter measured the value of g at a subset of three of the sites, for a total set of 27 g-values for the comparison. The absolute gravimeters agree with one another with a standard deviation of 1.6 µGal (1 Gal = 1 cm s-2). The minimum and maximum offsets are -2.8 and 2.7 µGal. This is an excellent agreement and can be attributed to multiple factors, including gravimeters that were in good working order, good operators, a quiet observatory, and a short duration time for the experiment. These results can be used to standardize gravity surveys internationally.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geodesy","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","doi":"10.1007/s00190-011-0539-y","usgsCitation":"Schmerge, D., Francis, O., Henton, J., Ingles, D., Jones, D., Kennedy, J.R., Krauterbluth, K., Liard, J., Newell, D., Sands, R., Schiel, J., Silliker, J., and van Westrum, D., 2012, Results of the first North American comparison of absolute gravimeters, NACAG-2010: Journal of Geodesy, v. 86, no. 8, p. 591-596, https://doi.org/10.1007/s00190-011-0539-y.","productDescription":"6 p.","startPage":"591","endPage":"596","numberOfPages":"6","additionalOnlineFiles":"N","ipdsId":"IP-034910","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"links":[{"id":271961,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":271960,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00190-011-0539-y"}],"volume":"86","issue":"8","noUsgsAuthors":false,"publicationDate":"2012-01-07","publicationStatus":"PW","scienceBaseUri":"518a2279e4b061e1bd5334a7","contributors":{"authors":[{"text":"Schmerge, David","contributorId":78228,"corporation":false,"usgs":true,"family":"Schmerge","given":"David","affiliations":[],"preferred":false,"id":477036,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Francis, Olvier","contributorId":93367,"corporation":false,"usgs":true,"family":"Francis","given":"Olvier","email":"","affiliations":[],"preferred":false,"id":477038,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Henton, J.","contributorId":85072,"corporation":false,"usgs":true,"family":"Henton","given":"J.","email":"","affiliations":[],"preferred":false,"id":477037,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ingles, D.","contributorId":64140,"corporation":false,"usgs":true,"family":"Ingles","given":"D.","email":"","affiliations":[],"preferred":false,"id":477032,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jones, D.","contributorId":16578,"corporation":false,"usgs":true,"family":"Jones","given":"D.","affiliations":[],"preferred":false,"id":477030,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kennedy, Jeffrey R. 0000-0002-3365-6589 jkennedy@usgs.gov","orcid":"https://orcid.org/0000-0002-3365-6589","contributorId":2172,"corporation":false,"usgs":true,"family":"Kennedy","given":"Jeffrey","email":"jkennedy@usgs.gov","middleInitial":"R.","affiliations":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"preferred":true,"id":477027,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Krauterbluth, K.","contributorId":67791,"corporation":false,"usgs":true,"family":"Krauterbluth","given":"K.","email":"","affiliations":[],"preferred":false,"id":477033,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Liard, J.","contributorId":14676,"corporation":false,"usgs":true,"family":"Liard","given":"J.","email":"","affiliations":[],"preferred":false,"id":477029,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Newell, D.","contributorId":14281,"corporation":false,"usgs":true,"family":"Newell","given":"D.","email":"","affiliations":[],"preferred":false,"id":477028,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Sands, R.","contributorId":62909,"corporation":false,"usgs":true,"family":"Sands","given":"R.","email":"","affiliations":[],"preferred":false,"id":477031,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Schiel, J.","contributorId":74276,"corporation":false,"usgs":true,"family":"Schiel","given":"J.","email":"","affiliations":[],"preferred":false,"id":477034,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Silliker, J.","contributorId":105625,"corporation":false,"usgs":true,"family":"Silliker","given":"J.","email":"","affiliations":[],"preferred":false,"id":477039,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"van Westrum, D.","contributorId":77030,"corporation":false,"usgs":true,"family":"van Westrum","given":"D.","email":"","affiliations":[],"preferred":false,"id":477035,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}} ,{"id":70045011,"text":"70045011 - 2012 - Navigational inlets are conduits for land-based sources of pollution","interactions":[],"lastModifiedDate":"2015-01-16T13:40:26","indexId":"70045011","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Navigational inlets are conduits for land-based sources of pollution","docAbstract":"

No abstract available.

","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":"Flutch, J., Griffin, D., and Lipp, E.K., 2012, Navigational inlets are conduits for land-based sources of pollution, chap. of Tropical connections: south Florida's marine environment, p. 149-149.","productDescription":"1 p.","startPage":"149","endPage":"149","numberOfPages":"1","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":288,"text":"Florida Water Science Center-Tallahassee","active":false,"usgs":true}],"links":[{"id":270217,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","city":"Florida","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -87.63,24.52 ], [ -87.63,31.0 ], [ -80.03,31.0 ], [ -80.03,24.52 ], [ -87.63,24.52 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5152b563e4b01197b08e9be5","contributors":{"authors":[{"text":"Flutch, J.C.","contributorId":30522,"corporation":false,"usgs":true,"family":"Flutch","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":476618,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Griffin, Dale W.","contributorId":23668,"corporation":false,"usgs":true,"family":"Griffin","given":"Dale W.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":476617,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lipp, Erin K.","contributorId":73823,"corporation":false,"usgs":true,"family":"Lipp","given":"Erin","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":476619,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70044500,"text":"70044500 - 2012 - Stable water isotopologue ratios in fog and cloud droplets of liquid clouds are not size-dependent","interactions":[],"lastModifiedDate":"2013-05-07T13:36:56","indexId":"70044500","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":922,"text":"Atmospheric Chemistry and Physics","active":true,"publicationSubtype":{"id":10}},"title":"Stable water isotopologue ratios in fog and cloud droplets of liquid clouds are not size-dependent","docAbstract":"In this work, we present the first observations of stable water isotopologue ratios in cloud droplets of different sizes collected simultaneously. We address the question whether the isotope ratio of droplets in a liquid cloud varies as a function of droplet size. Samples were collected from a ground intercepted cloud (= fog) during the Hill Cap Cloud Thuringia 2010 campaign (HCCT-2010) using a three-stage Caltech Active Strand Cloud water Collector (CASCC). An instrument test revealed that no artificial isotopic fractionation occurs during sample collection with the CASCC. Furthermore, we could experimentally confirm the hypothesis that the δ values of cloud droplets of the relevant droplet sizes (μm-range) were not significantly different and thus can be assumed to be in isotopic equilibrium immediately with the surrounding water vapor. However, during the dissolution period of the cloud, when the supersaturation inside the cloud decreased and the cloud began to clear, differences in isotope ratios of the different droplet sizes tended to be larger. This is likely to result from the cloud's heterogeneity, implying that larger and smaller cloud droplets have been collected at different moments in time, delivering isotope ratios from different collection times.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Atmospheric Chemistry and Physics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"European Geosciences Union","doi":"10.5194/acp-12-9855-2012","usgsCitation":"Spiegel, J., Aemisegger, F., Scholl, M., Wienhold, F., Collett, J., Lee, T., van Pinxteren, D., Mertes, S., Tilgner, A., Herrmann, H., Werner, R., Buchmann, N., and Eugster, W., 2012, Stable water isotopologue ratios in fog and cloud droplets of liquid clouds are not size-dependent: Atmospheric Chemistry and Physics, v. 12, p. 9855-9863, https://doi.org/10.5194/acp-12-9855-2012.","productDescription":"9 p.","startPage":"9855","endPage":"9863","numberOfPages":"9","ipdsId":"IP-020677","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":474619,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/acp-12-9855-2012","text":"Publisher Index Page"},{"id":271963,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":271962,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.5194/acp-12-9855-2012"}],"country":"United States","volume":"12","noUsgsAuthors":false,"publicationDate":"2012-10-29","publicationStatus":"PW","scienceBaseUri":"518a227ae4b061e1bd5334c4","contributors":{"authors":[{"text":"Spiegel, J.K.","contributorId":6738,"corporation":false,"usgs":true,"family":"Spiegel","given":"J.K.","email":"","affiliations":[],"preferred":false,"id":475739,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aemisegger, F.","contributorId":105614,"corporation":false,"usgs":true,"family":"Aemisegger","given":"F.","email":"","affiliations":[],"preferred":false,"id":475751,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scholl, M.","contributorId":32385,"corporation":false,"usgs":true,"family":"Scholl","given":"M.","affiliations":[],"preferred":false,"id":475745,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wienhold, F.G.","contributorId":11489,"corporation":false,"usgs":true,"family":"Wienhold","given":"F.G.","email":"","affiliations":[],"preferred":false,"id":475740,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Collett, J.L. Jr.","contributorId":42426,"corporation":false,"usgs":true,"family":"Collett","given":"J.L.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":475747,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lee, T.","contributorId":91720,"corporation":false,"usgs":true,"family":"Lee","given":"T.","affiliations":[],"preferred":false,"id":475749,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"van Pinxteren, D.","contributorId":18646,"corporation":false,"usgs":true,"family":"van Pinxteren","given":"D.","email":"","affiliations":[],"preferred":false,"id":475744,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Mertes, S.","contributorId":85859,"corporation":false,"usgs":true,"family":"Mertes","given":"S.","email":"","affiliations":[],"preferred":false,"id":475748,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Tilgner, A.","contributorId":14276,"corporation":false,"usgs":true,"family":"Tilgner","given":"A.","email":"","affiliations":[],"preferred":false,"id":475743,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Herrmann, H.","contributorId":12344,"corporation":false,"usgs":true,"family":"Herrmann","given":"H.","email":"","affiliations":[],"preferred":false,"id":475742,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Werner, Roland A.","contributorId":103488,"corporation":false,"usgs":true,"family":"Werner","given":"Roland A.","affiliations":[],"preferred":false,"id":475750,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Buchmann, N.","contributorId":11906,"corporation":false,"usgs":true,"family":"Buchmann","given":"N.","affiliations":[],"preferred":false,"id":475741,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Eugster, W.","contributorId":32701,"corporation":false,"usgs":true,"family":"Eugster","given":"W.","email":"","affiliations":[],"preferred":false,"id":475746,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}} ,{"id":70004950,"text":"70004950 - 2012 - An evaluation of the relative quality of dike pools for benthic macroinvertebrates in the Lower Missouri River, USA","interactions":[],"lastModifiedDate":"2016-10-20T12:34:16","indexId":"70004950","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3301,"text":"River Research and Applications","active":true,"publicationSubtype":{"id":10}},"title":"An evaluation of the relative quality of dike pools for benthic macroinvertebrates in the Lower Missouri River, USA","docAbstract":"A habitat-based aquatic macroinvertebrate study was initiated in the Lower Missouri River to evaluate relative quality and biological condition of dike pool habitats. Water-quality and sediment-quality parameters and macroinvertebrate assemblage structure were measured from depositional substrates at 18 sites. Sediment porewater was analysed for ammonia, sulphide, pH and oxidation-reduction potential. Whole sediments were analysed for particle-size distribution, organic carbon and contaminants. Field water-quality parameters were measured at subsurface and at the sediment-water interface. Pool area adjacent and downstream from each dike was estimated from aerial photography. Macroinvertebrate biotic condition scores were determined by integrating the following indicator response metrics: % of Ephemeroptera (mayflies), % of Oligochaeta worms, Shannon Diversity Index and total taxa richness. Regression models were developed for predicting macroinvertebrate scores based on individual water-quality and sediment-quality variables and a water/sediment-quality score that integrated all variables. Macroinvertebrate scores generated significant determination coefficients with dike pool area (R2=0.56), oxidation–reduction potential (R2=0.81) and water/sediment-quality score (R2=0.71). Dissolved oxygen saturation, oxidation-reduction potential and total ammonia in sediment porewater were most important in explaining variation in macroinvertebrate scores. The best two-variable regression models included dike pool size + the water/sediment-quality score (R2=0.84) and dike pool size + oxidation-reduction potential (R2=0.93). Results indicate that dike pool size and chemistry of sediments and overlying water can be used to evaluate dike pool quality and identify environmental conditions necessary for optimizing diversity and productivity of important aquatic macroinvertebrates. A combination of these variables could be utilized for measuring the success of habitat enhancement activities currently being implemented in this system.","language":"English","publisher":"Wiley","doi":"10.1002/rra.1558","usgsCitation":"Poulton, B., and Allert, A., 2012, An evaluation of the relative quality of dike pools for benthic macroinvertebrates in the Lower Missouri River, USA: River Research and Applications, v. 28, no. 10, p. 1658-1679, https://doi.org/10.1002/rra.1558.","productDescription":"22 p.","startPage":"1658","endPage":"1679","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":259091,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":259087,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rra.1558","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Iowa;Nebraska;Missouri;Kansas","city":"Omaha;St. Joseph;Kansas City;Jefferson City;St. Louis","otherGeospatial":"Lower Missouri River","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -97.7193,37.3308 ], [ -97.7193,41.9755 ], [ -89.1045,41.9755 ], [ -89.1045,37.3308 ], [ -97.7193,37.3308 ] ] ] } } ] }","volume":"28","issue":"10","noUsgsAuthors":false,"publicationDate":"2011-07-18","publicationStatus":"PW","scienceBaseUri":"5059ea58e4b0c8380cd487d1","contributors":{"authors":[{"text":"Poulton, B.C.","contributorId":22930,"corporation":false,"usgs":true,"family":"Poulton","given":"B.C.","email":"","affiliations":[],"preferred":false,"id":351720,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Allert, A.L.","contributorId":55987,"corporation":false,"usgs":true,"family":"Allert","given":"A.L.","email":"","affiliations":[],"preferred":false,"id":351721,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70032418,"text":"70032418 - 2012 - Microbial water quality before and after the repair of a failing onsite wastewater treatment system adjacent to coastal waters","interactions":[],"lastModifiedDate":"2020-12-01T21:16:59.810007","indexId":"70032418","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2169,"text":"Journal of Applied Microbiology","active":true,"publicationSubtype":{"id":10}},"title":"Microbial water quality before and after the repair of a failing onsite wastewater treatment system adjacent to coastal waters","docAbstract":"

Aims:  The objective was to assess the impacts of repairing a failing onsite wastewater treatment system (OWTS, i.e., septic system) as related to coastal microbial water quality. Methods and Results:  Wastewater, groundwater and surface water were monitored for environmental parameters, faecal indicator bacteria (total coliforms, Escherichia coli, enterococci) and the viral tracer MS2 before and after repairing a failing OWTS. MS2 results using plaque enumeration and quantitative reverse transcriptase polymerase chain reaction (qRT‐PCR) often agreed, but inhibition limited the qRT‐PCR assay sensitivity. Prerepair, MS2 persisted in groundwater and was detected in the nearby creek; postrepair, it was not detected. In groundwater, total coliform concentrations were lower and E. coli was not detected, while enterococci concentrations were similar to prerepair levels. E. coli and enterococci surface water concentrations were elevated both before and after the repair. Conclusions:  Repairing the failing OWTS improved groundwater microbial water quality, although persistence of bacteria in surface water suggests that the OWTS was not the singular faecal contributor to adjacent coastal waters. A suite of tracers is needed to fully assess OWTS performance in treating microbial contaminants and related impacts on receiving waters. Molecular methods like qRT‐PCR have potential but require optimization. Significance and Impact of Study:  This is the first before and after study of a failing OWTS and provides guidance on selection of microbial tracers and methods.

","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-2672.2011.05183.x","issn":"13645072","usgsCitation":"Conn, K., Habteselassie, M., Denene, B.A., and Noble, R., 2012, Microbial water quality before and after the repair of a failing onsite wastewater treatment system adjacent to coastal waters: Journal of Applied Microbiology, v. 112, no. 1, p. 214-224, https://doi.org/10.1111/j.1365-2672.2011.05183.x.","productDescription":"11 p.","startPage":"214","endPage":"224","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":241406,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213749,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2672.2011.05183.x"}],"country":"United States","state":"North Carolina","otherGeospatial":"Newport River estuary","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -76.91665649414062,\n 34.699848377328934\n ],\n [\n -76.56097412109375,\n 34.699848377328934\n ],\n [\n -76.56097412109375,\n 34.898321507559885\n ],\n [\n -76.91665649414062,\n 34.898321507559885\n ],\n [\n -76.91665649414062,\n 34.699848377328934\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"112","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-12-08","publicationStatus":"PW","scienceBaseUri":"505a5663e4b0c8380cd6d56d","contributors":{"authors":[{"text":"Conn, K.E.","contributorId":64433,"corporation":false,"usgs":true,"family":"Conn","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":436067,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Habteselassie, M.Y.","contributorId":6267,"corporation":false,"usgs":true,"family":"Habteselassie","given":"M.Y.","email":"","affiliations":[],"preferred":false,"id":436065,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Denene, Blackwood A.","contributorId":87378,"corporation":false,"usgs":true,"family":"Denene","given":"Blackwood","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":436068,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Noble, R.T.","contributorId":60452,"corporation":false,"usgs":true,"family":"Noble","given":"R.T.","email":"","affiliations":[],"preferred":false,"id":436066,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032665,"text":"70032665 - 2012 - Occurrence and geochemistry of radium in water from principal drinking-water aquifer systems of the United States","interactions":[],"lastModifiedDate":"2019-09-25T10:51:13","indexId":"70032665","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":"Occurrence and geochemistry of radium in water from principal drinking-water aquifer systems of the United States","docAbstract":"A total of 1270 raw-water samples (before treatment) were collected from 15 principal and other major aquifer systems (PAs) used for drinking water in 45 states in all major physiographic provinces of the USA and analyzed for concentrations of the Ra isotopes 224Ra, 226Ra and 228Ra establishing the framework for evaluating Ra occurrence. The US Environmental Protection Agency Maximum Contaminant Level (MCL) of 0.185Bq/L (5pCi/L) for combined Ra ( 226Ra plus 228Ra) for drinking water was exceeded in 4.02% (39 of 971) of samples for which both 226Ra and 228Ra were determined, or in 3.15% (40 of 1266) of the samples in which at least one isotope concentration ( 226Ra or 228Ra) was determined. The maximum concentration of combined Ra was 0.755Bq/L (20.4pCi/L) in water from the North Atlantic Coastal Plain quartzose sand aquifer system. All the exceedences of the MCL for combined Ra occurred in water samples from the following 7PAs (in order of decreasing relative frequency of occurrence): the Midcontinent and Ozark Plateau Cambro-Ordovician dolomites and sandstones, the North Atlantic Coastal Plain, the Floridan, the crystalline rocks (granitic, metamorphic) of New England, the Mesozoic basins of the Appalachian Piedmont, the Gulf Coastal Plain, and the glacial sands and gravels (highest concentrations in New England).The concentration of Ra was consistently controlled by geochemical properties of the aquifer systems, with the highest concentrations most likely to be present where, as a consequence of the geochemical environment, adsorption of the Ra was slightly decreased. The result is a slight relative increase in Ra mobility, especially notable in aquifers with poor sorptive capacity (Fe-oxide-poor quartzose sands and carbonates), even if Ra is not abundant in the aquifer solids. The most common occurrence of elevated Ra throughout the USA occurred in anoxic water (low dissolved-O 2) with high concentrations of Fe or Mn, and in places, high concentrations of the competing ions Ca, Mg, Ba and Sr, and occasionally of dissolved solids, K, SO 4 and HCO 3. The other water type to frequently contain elevated concentrations of the Ra radioisotopes was acidic (low pH), and had in places, high concentrations of NO 3 and other acid anions, and on occasion, of the competing divalent cations, Mn and Al. One or the other of these broad water types was commonly present in each of the PAs in which elevated concentrations of combined Ra occurred. Concentrations of 226Ra or 228Ra or combined Ra correlated significantly with those of the above listed water-quality constituents (on the basis of the non-parametric Spearman correlation technique) and loaded on principal components describing the above water types from the entire data set and for samples from the PAs with the highest combined Ra concentrations.Concentrations of 224Ra and 226Ra were significantly correlated to those of 228Ra (Spearman's rank correlation coefficient, +0.236 and +0.326, respectively). Activity ratios of 224Ra/ 228Ra in the water samples were mostly near 1 when concentrations of both isotopes were greater than or equal to 0.037Bq/L (1pCi/L), the level above which analytical results were most reliable. Co-occurrence among these highest concentrations of the Ra radionuclides was most likely in those PAs where chemical conditions are most conducive to Ra mobility (e.g. acidic North Atlantic Coastal Plain). The concentrations of 224Ra were occasionally greater than 0.037Bq/L and the ratios of 224Ra/ 228Ra were generally highest in the PAs composed of alluvial sands and Cretaceous/Tertiary sandstones from the western USA, likely because concentrations of 224Ra are enhanced in solution relative to those of 228Ra by alpha recoil from the aquifer matrix. Rapid adsorption of the two Ra isotopes (controlled by the alkaline and oxic aquifer geochemistry) combined with preferential faster recoil of 224Ra generates a 224Ra/ 228Ra ratio much greater than ","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.apgeochem.2011.11.002","issn":"08832927","usgsCitation":"Szabo, Z., DePaul, V.T., Fischer, J., Kraemer, T.F., and Jacobsen, E., 2012, Occurrence and geochemistry of radium in water from principal drinking-water aquifer systems of the United States: Applied Geochemistry, v. 27, no. 3, p. 729-752, https://doi.org/10.1016/j.apgeochem.2011.11.002.","startPage":"729","endPage":"752","numberOfPages":"24","costCenters":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"links":[{"id":474677,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.apgeochem.2011.11.002","text":"Publisher Index Page"},{"id":241597,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213923,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2011.11.002"}],"volume":"27","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6b6ce4b0c8380cd746a9","contributors":{"authors":[{"text":"Szabo, Z. 0000-0002-0760-9607","orcid":"https://orcid.org/0000-0002-0760-9607","contributorId":44302,"corporation":false,"usgs":true,"family":"Szabo","given":"Z.","affiliations":[],"preferred":false,"id":437349,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"DePaul, Vincent T. 0000-0002-7977-5217 vdepaul@usgs.gov","orcid":"https://orcid.org/0000-0002-7977-5217","contributorId":2778,"corporation":false,"usgs":true,"family":"DePaul","given":"Vincent","email":"vdepaul@usgs.gov","middleInitial":"T.","affiliations":[{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":437351,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fischer, J.M. 0000-0003-2996-9272","orcid":"https://orcid.org/0000-0003-2996-9272","contributorId":74419,"corporation":false,"usgs":true,"family":"Fischer","given":"J.M.","affiliations":[],"preferred":false,"id":437352,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kraemer, T. F.","contributorId":63400,"corporation":false,"usgs":true,"family":"Kraemer","given":"T.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":437350,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Jacobsen, E.","contributorId":101462,"corporation":false,"usgs":true,"family":"Jacobsen","given":"E.","email":"","affiliations":[],"preferred":false,"id":437353,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70032656,"text":"70032656 - 2012 - Fate of 4-nonylphenol and 17β-estradiol in the Redwood River of Minnesota","interactions":[],"lastModifiedDate":"2017-08-29T15:41:12","indexId":"70032656","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Fate of 4-nonylphenol and 17β-estradiol in the Redwood River of Minnesota","docAbstract":"

The majority of previous research investigating the fate of endocrine-disrupting compounds has focused on single processes generally in controlled laboratory experiments, and limited studies have directly evaluated their fate and transport in rivers. This study evaluated the fate and transport of 4-nonylphenol, 17β-estradiol, and estrone in a 10-km reach of the Redwood River in southwestern Minnesota. The same parcel of water was sampled as it moved downstream, integrating chemical transformation and hydrologic processes. The conservative tracer bromide was used to track the parcel of water being sampled, and the change in mass of the target compounds relative to bromide was determined at two locations downstream from a wastewater treatment plant effluent outfall. In-stream attenuation coefficients (kstream) were calculated by assuming first-order kinetics (negative values correspond to attenuation, whereas positive values indicate production). Attenuation of 17β-estradiol (kstream = −3.2 ± 1.0 day–1) was attributed primarily due to sorption and biodegradation by the stream biofilm and bed sediments. Estrone (kstream = 0.6 ± 0.8 day–1) and 4-nonylphenol (kstream = 1.4 ± 1.9 day–1) were produced in the evaluated 10-km reach, likely due to biochemical transformation from parent compounds (17β-estradiol, 4-nonylphenolpolyethoxylates, and 4-nonyphenolpolyethoxycarboxylates). Despite attenuation, these compounds were transported kilometers downstream, and thus additive concentrations from multiple sources and transformation of parent compounds into degradates having estrogenic activity can explain their environmental persistence and widespread observations of biological disruption in surface waters.

","language":"English","publisher":"ACS Publications","doi":"10.1021/es2031664","usgsCitation":"Writer, J.H., Ryan, J.N., Keefe, S.H., and Barber, L.B., 2012, Fate of 4-nonylphenol and 17β-estradiol in the Redwood River of Minnesota: Environmental Science & Technology, v. 46, no. 2, p. 860-868, https://doi.org/10.1021/es2031664.","productDescription":"9 p.","startPage":"860","endPage":"868","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":241488,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Minnesota","otherGeospatial":"Redwood River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -96.416015625,\n 43.929549935614595\n ],\n [\n -96.416015625,\n 44.54350521320822\n ],\n [\n -94.4384765625,\n 44.54350521320822\n ],\n [\n -94.4384765625,\n 43.929549935614595\n ],\n [\n -96.416015625,\n 43.929549935614595\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"46","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-12-30","publicationStatus":"PW","scienceBaseUri":"505a0f0de4b0c8380cd53733","contributors":{"authors":[{"text":"Writer, Jeffrey H. jwriter@usgs.gov","contributorId":1393,"corporation":false,"usgs":true,"family":"Writer","given":"Jeffrey","email":"jwriter@usgs.gov","middleInitial":"H.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":437304,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ryan, Joseph N.","contributorId":54290,"corporation":false,"usgs":false,"family":"Ryan","given":"Joseph","email":"","middleInitial":"N.","affiliations":[{"id":604,"text":"University of Colorado- Boulder","active":false,"usgs":true}],"preferred":false,"id":437307,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keefe, Steffanie H. 0000-0002-3805-6101 shkeefe@usgs.gov","orcid":"https://orcid.org/0000-0002-3805-6101","contributorId":2843,"corporation":false,"usgs":true,"family":"Keefe","given":"Steffanie","email":"shkeefe@usgs.gov","middleInitial":"H.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":437305,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barber, Larry B. 0000-0002-0561-0831 lbbarber@usgs.gov","orcid":"https://orcid.org/0000-0002-0561-0831","contributorId":921,"corporation":false,"usgs":true,"family":"Barber","given":"Larry","email":"lbbarber@usgs.gov","middleInitial":"B.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":437306,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032648,"text":"70032648 - 2012 - A Holocene record of endogenic iron and manganese precipitation and vegetation history in a lake-fen complex in northwestern Minnesota","interactions":[],"lastModifiedDate":"2020-11-24T17:52:47.307718","indexId":"70032648","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2411,"text":"Journal of Paleolimnology","active":true,"publicationSubtype":{"id":10}},"title":"A Holocene record of endogenic iron and manganese precipitation and vegetation history in a lake-fen complex in northwestern Minnesota","docAbstract":"

Little Shingobee Lake and Fen are part of the extensive network of lakes and wetlands in the Shingobee River headwaters of northwestern Minnesota, designed to study the interactions between surface and ground waters. Prior to about 11.2 cal. ka, most of these lakes and wetlands were interconnected to form glacial Lake Willobee, which apparently formed when a debris flow dammed the Shingobee River. Between 11.2 and 8.5 cal. ka, the level of Lake Willobee fell as a result of breaching of the dam, transforming the deep lake into the existing lakes and wetlands. Analyses of a 9-m core from Little Shingobee Lake (LSL-B), and lacustrine sediments under 3.3 m of peat in a 17-m core from Little Shingobee Fen (LSF-10), show that the dominant components are allogenic clastic material, and endogenic CaCO3 and organic matter. In both cores almost all of the iron (Fe) and manganese (Mn) are incorporated in endogenic minerals, presumed to be X-ray amorphous oxyhydroxide minerals, that occur in significant quantities throughout the cores; almost no Fe and Mn are contributed from detrital aluminosilicate minerals. This suggests that, for most of the Holocene, the allogenic watershed contributions to lake chemistry were minor compared to the dissolved mineral load. In addition, prior to 3.5 cal. ka, pollen zone boundaries coincide with large changes in lake-sediment mineralogy, indicating that both landscape and climate processes were linked to early- and mid-Holocene lake chemistry. The pollen time series, with sequential domination by spruce, pine, sagebrush-oak, birch-oak and, finally, white pine is typical of the region and reflects the changing location of the prairie-forest transition zone over time. These changes in vegetation had some profound effects on the geochemistry of the lake waters.

","language":"English","publisher":"Springer Link","doi":"10.1007/s10933-011-9544-7","issn":"09212728","usgsCitation":"Dean, W.E., and Doner, L., 2012, A Holocene record of endogenic iron and manganese precipitation and vegetation history in a lake-fen complex in northwestern Minnesota: Journal of Paleolimnology, v. 47, no. 1, p. 29-42, https://doi.org/10.1007/s10933-011-9544-7.","productDescription":"14 p.","startPage":"29","endPage":"42","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":241354,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213700,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10933-011-9544-7"}],"country":"United States","state":"Minnesota","otherGeospatial":"Little Shingobee Lake and Fen","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -94.71313476562499,\n 46.81509864599243\n ],\n [\n -93.779296875,\n 46.81509864599243\n ],\n [\n -93.779296875,\n 47.36115300722623\n ],\n [\n -94.71313476562499,\n 47.36115300722623\n ],\n [\n -94.71313476562499,\n 46.81509864599243\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"47","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-08-17","publicationStatus":"PW","scienceBaseUri":"5059e2e4e4b0c8380cd45cf5","contributors":{"authors":[{"text":"Dean, Walter E. dean@usgs.gov","contributorId":1801,"corporation":false,"usgs":true,"family":"Dean","given":"Walter","email":"dean@usgs.gov","middleInitial":"E.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":437263,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Doner, L.A.","contributorId":101888,"corporation":false,"usgs":true,"family":"Doner","given":"L.A.","email":"","affiliations":[],"preferred":false,"id":437264,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70032554,"text":"70032554 - 2012 - Ecological controls on the shell geochemistry of pink and white Globigerinoides ruber in the northern Gulf of Mexico: implications for paleoceanographic reconstruction","interactions":[],"lastModifiedDate":"2014-01-14T10:15:16","indexId":"70032554","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2673,"text":"Marine Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"Ecological controls on the shell geochemistry of pink and white Globigerinoides ruber in the northern Gulf of Mexico: implications for paleoceanographic reconstruction","docAbstract":"We evaluate the relationship between foraminiferal test size and shell geochemistry (δ13C, δ18O, and Mg/Ca) for two of the most commonly used planktonic foraminifers for paleoceanographic reconstruction in the subtropical Atlantic Ocean: the pink and white varieties of Globigerinoides ruber. Geochemical analyses were performed on foraminifera from modern core-top samples of high-accumulation rate basins in the northern Gulf of Mexico. Mg/Ca analysis indicates a positive relationship with test size, increasing by 1.1 mmol/mol (~ 2.5 °C) from the smallest (150–212 μm) to largest (> 500 μm) size fractions of G. ruber (pink), but with no significant relationship in G. ruber (white). In comparison, oxygen isotope data indicate a negative relationship with test size, decreasing by 0.6‰ across the size range of both pink and white G. ruber. The observed increase in Mg/Ca and decrease in δ18O are consistent with an increase in calcification temperature of 0.7 °C per 100 μm increase in test size, suggesting differences in the seasonal and/or depth distribution among size fractions. Overall, these results stress the necessity for using a consistent size fraction in downcore paleoceanographic studies. In addition, we compare downcore records of δ18O and Mg/Ca from pink and white G. ruber in a decadal-resolution 1000-year sedimentary record from the Pigmy Basin. Based on this comparison we conclude that pink G. ruber is calcifying in warmer waters than co-occurring white G. ruber, suggesting differences in the relative seasonal distribution and depth habitat of the two varieties.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Micropaleontology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.marmicro.2011.10.002","issn":"03778398","usgsCitation":"Richey, J.N., Poore, R.Z., Flower, B.P., and Hollander, D.J., 2012, Ecological controls on the shell geochemistry of pink and white Globigerinoides ruber in the northern Gulf of Mexico: implications for paleoceanographic reconstruction: Marine Micropaleontology, v. 82-83, p. 28-37, https://doi.org/10.1016/j.marmicro.2011.10.002.","productDescription":"10 p.","startPage":"28","endPage":"37","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":213790,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marmicro.2011.10.002"},{"id":241449,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Gulf Of Mexico","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -97.9,18.2 ], [ -97.9,30.4 ], [ -81.0,30.4 ], [ -81.0,18.2 ], [ -97.9,18.2 ] ] ] } } ] }","volume":"82-83","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a054de4b0c8380cd50d41","contributors":{"authors":[{"text":"Richey, Julie N. 0000-0002-2319-7980 jrichey@usgs.gov","orcid":"https://orcid.org/0000-0002-2319-7980","contributorId":5182,"corporation":false,"usgs":true,"family":"Richey","given":"Julie","email":"jrichey@usgs.gov","middleInitial":"N.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":436796,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poore, Richard Z. rpoore@usgs.gov","contributorId":345,"corporation":false,"usgs":true,"family":"Poore","given":"Richard","email":"rpoore@usgs.gov","middleInitial":"Z.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":436795,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Flower, Benjamin P.","contributorId":100620,"corporation":false,"usgs":true,"family":"Flower","given":"Benjamin","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":436798,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hollander, David J.","contributorId":11421,"corporation":false,"usgs":true,"family":"Hollander","given":"David","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":436797,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032605,"text":"70032605 - 2012 - Migration of Sakhalin taimen (Parahucho perryi): Evidence of freshwater resident life history types","interactions":[],"lastModifiedDate":"2020-12-07T17:08:12.472415","indexId":"70032605","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1528,"text":"Environmental Biology of Fishes","active":true,"publicationSubtype":{"id":10}},"title":"Migration of Sakhalin taimen (Parahucho perryi): Evidence of freshwater resident life history types","docAbstract":"

Sakhalin taimen (Parahucho perryi) range from the Russian Far East mainland along the Sea of Japan coast, and Sakhalin, Kuril, and Hokkaido Islands and are considered to primarily be an anadromous species. We used otolith strontium-to-calcium ratios (Sr/Ca) to determine the chronology of migration between freshwater and saltwater and identify migratory contingents of taimen collected from the Koppi River, Russia. In addition, we examined taimen from the Sarufutsu River, Japan and Tumnin River, Russia that were captured in marine waters. Transects of otolith Sr/Ca for the Sarufutsu River fish were consistent with patterns observed in anadromous salmonids. Two fish from the Tumnin River appeared to be recent migrants to saltwater and one fish was characterized by an otolith Sr/Ca transect consistent with marine migration. Using these transects as benchmarks, all Koppi River taimen were classified as freshwater residents. These findings suggest more work is needed to assess life history variability among locations and the role of freshwater productivity in controlling migratory behavior in taimen.

","language":"English","publisher":"Springer Nature","doi":"10.1007/s10641-011-9908-x","usgsCitation":"Zimmerman, C.E., Rand, P., Fukushima, M., and Zolotukhin, S., 2012, Migration of Sakhalin taimen (Parahucho perryi): Evidence of freshwater resident life history types: Environmental Biology of Fishes, v. 93, no. 2, p. 223-232, https://doi.org/10.1007/s10641-011-9908-x.","productDescription":"10 p.","startPage":"223","endPage":"232","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":241727,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Japan, Russia","otherGeospatial":"Tumnin River, Koppi River, Sarufutsu River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 138.69140625,\n 46.31658418182218\n ],\n [\n 143.173828125,\n 46.31658418182218\n ],\n [\n 143.173828125,\n 54.213861000644926\n ],\n [\n 138.69140625,\n 54.213861000644926\n ],\n [\n 138.69140625,\n 46.31658418182218\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"93","issue":"2","noUsgsAuthors":false,"publicationDate":"2011-08-05","publicationStatus":"PW","scienceBaseUri":"505a5702e4b0c8380cd6d9b3","contributors":{"authors":[{"text":"Zimmerman, Christian E. 0000-0002-3646-0688 czimmerman@usgs.gov","orcid":"https://orcid.org/0000-0002-3646-0688","contributorId":410,"corporation":false,"usgs":true,"family":"Zimmerman","given":"Christian","email":"czimmerman@usgs.gov","middleInitial":"E.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":120,"text":"Alaska Science Center Water","active":true,"usgs":true}],"preferred":true,"id":437030,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rand, P.S.","contributorId":17561,"corporation":false,"usgs":true,"family":"Rand","given":"P.S.","email":"","affiliations":[],"preferred":false,"id":437028,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fukushima, M.","contributorId":28082,"corporation":false,"usgs":true,"family":"Fukushima","given":"M.","email":"","affiliations":[],"preferred":false,"id":437029,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zolotukhin, S.F.","contributorId":50737,"corporation":false,"usgs":true,"family":"Zolotukhin","given":"S.F.","email":"","affiliations":[],"preferred":false,"id":437031,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032602,"text":"70032602 - 2012 - Hierarchy in factors affecting fish biodiversity in floodplain lakes of the Mississippi Alluvial Valley","interactions":[],"lastModifiedDate":"2020-11-30T18:35:45.60633","indexId":"70032602","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1528,"text":"Environmental Biology of Fishes","active":true,"publicationSubtype":{"id":10}},"title":"Hierarchy in factors affecting fish biodiversity in floodplain lakes of the Mississippi Alluvial Valley","docAbstract":"

River-floodplain ecosystems offer some of the most diverse and dynamic environments in the world. Accordingly, floodplain habitats harbor diverse fish assemblages. Fish biodiversity in floodplain lakes may be influenced by multiple variables operating on disparate scales, and these variables may exhibit a hierarchical organization depending on whether one variable governs another. In this study, we examined the interaction between primary variables descriptive of floodplain lake large-scale features, suites of secondary variables descriptive of water quality and primary productivity, and a set of tertiary variables descriptive of fish biodiversity across a range of floodplain lakes in the Mississippi Alluvial Valley of Mississippi and Arkansas (USA). Lakes varied considerably in their representation of primary, secondary, and tertiary variables. Multivariate direct gradient analyses indicated that lake maximum depth and the percentage of agricultural land surrounding a lake were the most important factors controlling variation in suites of secondary and tertiary variables, followed to a lesser extent by lake surface area. Fish biodiversity was generally greatest in large, deep lakes with lower proportions of watershed agricultural land. Our results may help foster a holistic approach to floodplain lake management and suggest the framework for a feedback model wherein primary variables can be manipulated for conservation and restoration purposes and secondary and tertiary variables can be used to monitor the success of such efforts.

","language":"English","publisher":"Springer Nature","doi":"10.1007/s10641-011-9923-y","issn":"03781909","usgsCitation":"Dembkowski, D., and Miranda, L., 2012, Hierarchy in factors affecting fish biodiversity in floodplain lakes of the Mississippi Alluvial Valley: Environmental Biology of Fishes, v. 93, no. 3, p. 357-368, https://doi.org/10.1007/s10641-011-9923-y.","productDescription":"12 p.","startPage":"357","endPage":"368","costCenters":[],"links":[{"id":241656,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213978,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10641-011-9923-y"}],"country":"United States","state":"Arkansas, Mississippi","otherGeospatial":"Lower Mississippi Alluvial Valley region of Mississippi and Arkansas","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -91.285400390625,\n 32.690243035492266\n ],\n [\n -90.845947265625,\n 32.759562025650126\n ],\n [\n -90.7855224609375,\n 33.902336404480685\n ],\n [\n -90.2801513671875,\n 34.67839374011646\n ],\n [\n -89.84069824218749,\n 35.44724605551148\n ],\n [\n -90.5877685546875,\n 35.51881428123057\n ],\n [\n -91.3568115234375,\n 33.911454454267606\n ],\n [\n -91.285400390625,\n 32.690243035492266\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"93","issue":"3","noUsgsAuthors":false,"publicationDate":"2011-09-09","publicationStatus":"PW","scienceBaseUri":"505a30a7e4b0c8380cd5d822","contributors":{"authors":[{"text":"Dembkowski, D.J.","contributorId":31995,"corporation":false,"usgs":true,"family":"Dembkowski","given":"D.J.","affiliations":[],"preferred":false,"id":437014,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miranda, L.E.","contributorId":58406,"corporation":false,"usgs":true,"family":"Miranda","given":"L.E.","affiliations":[],"preferred":false,"id":437015,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70032565,"text":"70032565 - 2012 - Mapping carbon flux uncertainty and selecting optimal locations for future flux towers in the Great Plains","interactions":[],"lastModifiedDate":"2018-02-23T13:12:35","indexId":"70032565","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2602,"text":"Landscape Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Mapping carbon flux uncertainty and selecting optimal locations for future flux towers in the Great Plains","docAbstract":"Flux tower networks (e. g., AmeriFlux, Agriflux) provide continuous observations of ecosystem exchanges of carbon (e. g., net ecosystem exchange), water vapor (e. g., evapotranspiration), and energy between terrestrial ecosystems and the atmosphere. The long-term time series of flux tower data are essential for studying and understanding terrestrial carbon cycles, ecosystem services, and climate changes. Currently, there are 13 flux towers located within the Great Plains (GP). The towers are sparsely distributed and do not adequately represent the varieties of vegetation cover types, climate conditions, and geophysical and biophysical conditions in the GP. This study assessed how well the available flux towers represent the environmental conditions or \"ecological envelopes\" across the GP and identified optimal locations for future flux towers in the GP. Regression-based remote sensing and weather-driven net ecosystem production (NEP) models derived from different extrapolation ranges (10 and 50%) were used to identify areas where ecological conditions were poorly represented by the flux tower sites and years previously used for mapping grassland fluxes. The optimal lands suitable for future flux towers within the GP were mapped. Results from this study provide information to optimize the usefulness of future flux towers in the GP and serve as a proxy for the uncertainty of the NEP map.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Landscape Ecology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10980-011-9699-7","issn":"09212973","usgsCitation":"Gu, Y., Howard, D., Wylie, B.K., and Zhang, L., 2012, Mapping carbon flux uncertainty and selecting optimal locations for future flux towers in the Great Plains: Landscape Ecology, v. 27, no. 3, p. 319-326, https://doi.org/10.1007/s10980-011-9699-7.","startPage":"319","endPage":"326","numberOfPages":"8","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":241589,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213917,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10980-011-9699-7"}],"volume":"27","issue":"3","noUsgsAuthors":false,"publicationDate":"2011-12-28","publicationStatus":"PW","scienceBaseUri":"505a5053e4b0c8380cd6b5f1","contributors":{"authors":[{"text":"Gu, Yingxin 0000-0002-3544-1856 ygu@usgs.gov","orcid":"https://orcid.org/0000-0002-3544-1856","contributorId":139586,"corporation":false,"usgs":true,"family":"Gu","given":"Yingxin","email":"ygu@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":436837,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Howard, Daniel M. 0000-0002-7563-7538 dhoward@usgs.gov","orcid":"https://orcid.org/0000-0002-7563-7538","contributorId":139585,"corporation":false,"usgs":true,"family":"Howard","given":"Daniel M.","email":"dhoward@usgs.gov","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":436836,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wylie, Bruce K. 0000-0002-7374-1083 wylie@usgs.gov","orcid":"https://orcid.org/0000-0002-7374-1083","contributorId":750,"corporation":false,"usgs":true,"family":"Wylie","given":"Bruce","email":"wylie@usgs.gov","middleInitial":"K.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true},{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"preferred":true,"id":436838,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zhang, Li","contributorId":98139,"corporation":false,"usgs":true,"family":"Zhang","given":"Li","affiliations":[],"preferred":false,"id":436839,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70032567,"text":"70032567 - 2012 - Spatial patterns of soil nitrification and nitrate export from forested headwaters in the northeastern United States","interactions":[],"lastModifiedDate":"2012-03-12T17:21:21","indexId":"70032567","displayToPublicDate":"2012-01-01T00:00:00","publicationYear":"2012","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2319,"text":"Journal of Geophysical Research G: Biogeosciences","active":true,"publicationSubtype":{"id":10}},"title":"Spatial patterns of soil nitrification and nitrate export from forested headwaters in the northeastern United States","docAbstract":"Nitrogen export from small forested watersheds is known to be affected by N deposition but with high regional variability. We studied 10 headwater catchments in the northeastern United States across a gradient of N deposition (5.4 - 9.4 kg ha -1 yr -1) to determine if soil nitrification rates could explain differences in stream water NO 3 - export. Average annual export of two years (October 2002 through September 2004) varied from 0.1 kg NO 3 --N ha -1 yr -1 at Cone Pond watershed in New Hampshire to 5.1 kg ha -1 yr -1 at Buck Creek South in the western Adirondack Mountains of New York. Potential net nitrification rates and relative nitrification (fraction of inorganic N as NO 3 -) were measured in Oa or A soil horizons at 21-130 sampling points throughout each watershed. Stream NO 3 - export was positively related to nitrification rates (r 2 = 0.34, p = 0.04) and the relative nitrification (r 2 = 0.37, p = 0.04). These relationships were much improved by restricting consideration to the 6 watersheds with a higher number of rate measurements (59-130) taken in transects parallel to the streams (r 2 of 0.84 and 0.70 for the nitrification rate and relative nitrification, respectively). Potential nitrification rates were also a better predictor of NO 3 - export when data were limited to either the 6 sampling points closest to the watershed outlet (r 2 = 0.75) or sampling points <250 m from the watershed outlet (r 2 = 0.68). The basal area of conifer species at the sampling plots was negatively related to NO 3 - export. These spatial relationships found here suggest a strong influence of near-stream and near-watershed-outlet soils on measured stream NO 3 - export. Copyright 2012 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research G: Biogeosciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2011JG001740","issn":"01480227","usgsCitation":"Ross, D., Shanley, J.B., Campbell, J., Lawrence, G., Bailey, S., Likens, G., Wemple, B., Fredriksen, G., and Jamison, A., 2012, Spatial patterns of soil nitrification and nitrate export from forested headwaters in the northeastern United States: Journal of Geophysical Research G: Biogeosciences, v. 117, no. 1, https://doi.org/10.1029/2011JG001740.","costCenters":[],"links":[{"id":213947,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2011JG001740"},{"id":241623,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"117","issue":"1","noUsgsAuthors":false,"publicationDate":"2012-01-31","publicationStatus":"PW","scienceBaseUri":"505b94a0e4b08c986b31abb4","contributors":{"authors":[{"text":"Ross, D.S.","contributorId":33867,"corporation":false,"usgs":true,"family":"Ross","given":"D.S.","email":"","affiliations":[],"preferred":false,"id":436843,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shanley, J. B.","contributorId":52226,"corporation":false,"usgs":true,"family":"Shanley","given":"J.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":436844,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Campbell, J.L.","contributorId":20488,"corporation":false,"usgs":true,"family":"Campbell","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":436841,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lawrence, G.B. 0000-0002-8035-2350","orcid":"https://orcid.org/0000-0002-8035-2350","contributorId":76347,"corporation":false,"usgs":true,"family":"Lawrence","given":"G.B.","affiliations":[],"preferred":false,"id":436847,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bailey, S.W.","contributorId":29113,"corporation":false,"usgs":true,"family":"Bailey","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":436842,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Likens, G.E.","contributorId":68893,"corporation":false,"usgs":true,"family":"Likens","given":"G.E.","email":"","affiliations":[],"preferred":false,"id":436846,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wemple, B.C.","contributorId":89331,"corporation":false,"usgs":true,"family":"Wemple","given":"B.C.","email":"","affiliations":[],"preferred":false,"id":436848,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Fredriksen, G.","contributorId":56434,"corporation":false,"usgs":true,"family":"Fredriksen","given":"G.","affiliations":[],"preferred":false,"id":436845,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Jamison, A.E.","contributorId":97692,"corporation":false,"usgs":true,"family":"Jamison","given":"A.E.","email":"","affiliations":[],"preferred":false,"id":436849,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}} ]}