{"pageNumber":"974","pageRowStart":"24325","pageSize":"25","recordCount":68937,"records":[{"id":70030053,"text":"70030053 - 2007 - Radium-226 accumulation in Florida freshwater mussels","interactions":[],"lastModifiedDate":"2013-01-18T21:32:19","indexId":"70030053","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2620,"text":"Limnology and Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"Radium-226 accumulation in Florida freshwater mussels","docAbstract":"Selected lakes in Hillsborough County, Florida have been hydrologically augmented with groundwater to offset stage declines caused by excessive pumping of the Floridan Aquifer. Augmentation water can be relatively rich in 226Ra (>5 decays per minute [dpm] L-1). We measured 226Ra activities in shells and soft tissues of adult bivalve molluscs (Elliptio cf. buckleyi) from groundwater-augmented and nonaugmented lakes to assess bioaccumulation of 226Ra by mussels. Mussels from augmented lakes displayed higher 226Ra in both shells and tissues than did mussels from nonaugmented lakes. Within a sample, 226Ra activity in Elliptio tissues was higher than the value measured in shells. Highest activities were found in a composite mussel sample (n = 6) from an augmented lake; soft tissue activity was 619 ?? 33 dpm g-1 dry weight and shell activity was 147 ?? 7 dpm g-1 g dry weight. Large mussels displayed greater activities in soft tissues and shells than did small mussels. We transplanted animals from a nonaugmented lake into a groundwater-augmented water body. 226Ra activity in dry tissue rose from 32 ?? 1 to 196 ?? 2 dpm g-1 within 2 months. When 226Ra-rich mussels (232 ?? 2 dpm g-1) from the augmented lake were transferred to the nonaugmented lake, they showed no significant 226Ra loss over the 69-d experiment. Large Elliptio mussels concentrated 226Ra in their soft tissues to levels about 1,000 to 25,000 times concentrations in lake water. Pumping of groundwater in Florida for residential, agricultural, and industrial use contributes dissolved 226Ra to some surface water bodies, where it can be bioaccumulated by bivalve molluscs. ?? 2007, by the American Society of Limnology and Oceanography, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Limnology and Oceanography","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.4319/lo.2007.52.4.1614","issn":"00243590","usgsCitation":"Brenner, M., Smoak, J., Leeper, D., Streubert, M., and Baker, S., 2007, Radium-226 accumulation in Florida freshwater mussels: Limnology and Oceanography, v. 52, no. 4, p. 1614-1623, https://doi.org/10.4319/lo.2007.52.4.1614.","startPage":"1614","endPage":"1623","numberOfPages":"10","costCenters":[],"links":[{"id":477024,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.4319/lo.2007.52.4.1614","text":"Publisher Index Page"},{"id":240533,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":265985,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.4319/lo.2007.52.4.1614"}],"volume":"52","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-07-31","publicationStatus":"PW","scienceBaseUri":"505a9430e4b0c8380cd81257","contributors":{"authors":[{"text":"Brenner, M.","contributorId":47984,"corporation":false,"usgs":true,"family":"Brenner","given":"M.","email":"","affiliations":[],"preferred":false,"id":425480,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smoak, J.M.","contributorId":40384,"corporation":false,"usgs":true,"family":"Smoak","given":"J.M.","affiliations":[],"preferred":false,"id":425479,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Leeper, D.A.","contributorId":30044,"corporation":false,"usgs":true,"family":"Leeper","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":425478,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Streubert, M.","contributorId":79305,"corporation":false,"usgs":true,"family":"Streubert","given":"M.","affiliations":[],"preferred":false,"id":425481,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Baker, S.M.","contributorId":106319,"corporation":false,"usgs":true,"family":"Baker","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":425482,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70029997,"text":"70029997 - 2007 - Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California","interactions":[],"lastModifiedDate":"2018-10-16T10:25:59","indexId":"70029997","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1800,"text":"Geomicrobiology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California","docAbstract":"<div id=\"35d9ca18-265e-4501-9038-4105e95a4b7d\" class=\"widget pageBody none  widget-none  widget-compact-all\"><div class=\"wrapped \"><div class=\"widget-body body body-none  body-compact-all\"><div class=\"page-body pagefulltext\"><div data-pb-dropzone=\"main\"><div id=\"f4a74f7a-9ba2-4605-86b1-8094cb1f01de\" class=\"widget responsive-layout none publicationContentBody widget-none\"><div class=\"wrapped \"><div class=\"widget-body body body-none \"><div class=\"container\"><div class=\"row row-md  \"><div class=\"col-md-7-12 \"><div class=\"contents\" data-pb-dropzone=\"contents1\"><div id=\"d29f04e9-776c-4996-a0d8-931023161e00\" class=\"widget literatumPublicationContentWidget none  widget-none  widget-compact-all\"><div class=\"wrapped \"><div class=\"widget-body body body-none  body-compact-all\"><div class=\"publication-tabs ja publication-tabs-dropdown\"><div class=\"tabs tabs-widget\"><div class=\"tab-content \"><div class=\"tab tab-pane active\"><div class=\"hlFld-Abstract\"><div class=\"abstractSection abstractInFull\"><p>Carboxylated microspheres were employed as surrogates to assess the transport potential of<span>&nbsp;</span><i>Cryptosporidium parvum</i>oocysts during forced- and natural-gradient tests conducted in July and October 2004. The tests involved poorly-sorted, near-surface sediments where groundwater is pumped from an alluvial aquifer underlying the Russian River, Sonoma County, CA. In an off channel infiltration basin and within the river, a mixture (2-, 3-, and 5- μm diameters) of fluorescently-labeled carboxylated microspheres and bromide tracers were used in two injection and recovery tests to assess sediment removal efficiency for the microspheres. Bottom sediments varied considerably in their filtration efficiency for<span>&nbsp;</span><i>Cryptosporidium</i>.</p></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geomicrobiology Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/01490450701456867","issn":"01490451","usgsCitation":"Metge, D.W., Harvey, R.W., Anders, R., Rosenberry, D.O., Seymour, D., and Jasperse, J., 2007, Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California: Geomicrobiology Journal, v. 24, no. 3-4, p. 231-245, https://doi.org/10.1080/01490450701456867.","productDescription":"15 p. ","startPage":"231","endPage":"245","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240186,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212664,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/01490450701456867"}],"country":"United States","state":"California","county":"Sonoma County","otherGeospatial":"Russian River Water Supply Facility","volume":"24","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbecce4b08c986b3297c1","contributors":{"authors":[{"text":"Metge, David W. dwmetge@usgs.gov","contributorId":663,"corporation":false,"usgs":true,"family":"Metge","given":"David","email":"dwmetge@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":425225,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harvey, Ronald W. 0000-0002-2791-8503 rwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2791-8503","contributorId":564,"corporation":false,"usgs":true,"family":"Harvey","given":"Ronald","email":"rwharvey@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":425223,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anders, Robert 0000-0002-2363-9072 randers@usgs.gov","orcid":"https://orcid.org/0000-0002-2363-9072","contributorId":1210,"corporation":false,"usgs":true,"family":"Anders","given":"Robert","email":"randers@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":425228,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rosenberry, Donald O. 0000-0003-0681-5641 rosenber@usgs.gov","orcid":"https://orcid.org/0000-0003-0681-5641","contributorId":1312,"corporation":false,"usgs":true,"family":"Rosenberry","given":"Donald","email":"rosenber@usgs.gov","middleInitial":"O.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":425224,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Seymour, Donald","contributorId":175253,"corporation":false,"usgs":false,"family":"Seymour","given":"Donald","email":"","affiliations":[{"id":17863,"text":"Sonoma County Water Agency","active":true,"usgs":false}],"preferred":false,"id":425226,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jasperse, Jay","contributorId":168661,"corporation":false,"usgs":false,"family":"Jasperse","given":"Jay","affiliations":[{"id":17863,"text":"Sonoma County Water Agency","active":true,"usgs":false}],"preferred":false,"id":425227,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70030001,"text":"70030001 - 2007 - Hydrology and water quality in two mountain basins of the northeastern US: Assessing baseline conditions and effects of ski area development","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70030001","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Hydrology and water quality in two mountain basins of the northeastern US: Assessing baseline conditions and effects of ski area development","docAbstract":"Mountain regions throughout the world face intense development pressures associated with recreational and tourism uses. Despite these pressures, much of the research on bio-geophysical impacts of humans in mountain regions has focused on the effects of natural resource extraction. This paper describes findings from the first 3 years of a study examining high elevation watershed processes in a region undergoing alpine resort development. Our study is designed as a paired-watershed experiment. The Ranch Brook watershed (9.6 km2) is a relatively pristine, forested watershed and serves as the undeveloped 'control' basin. West Branch (11.7 km2) encompasses an existing alpine ski resort, with approximately 17% of the basin occupied by ski trails and impervious surfaces, and an additional 7% slated for clearing and development. Here, we report results for water years 2001-2003 of streamflow and water quality dynamics for these watersheds. Precipitation increases significantly with elevation in the watersheds, and winter precipitation represents 36-46% of annual precipitation. Artificial snowmaking from water within West Branch watershed currently augments annual precipitation by only 3-4%. Water yield in the developed basin exceeded that in the control by 18-36%. Suspended sediment yield was more than two and a half times greater and fluxes of all major solutes were higher in the developed basin. Our study is the first to document the effects of existing ski area development on hydrology and water quality in the northeastern US and will serve as an important baseline for evaluating the effects of planned resort expansion activities in this area.","largerWorkTitle":"Hydrological Processes","language":"English","doi":"10.1002/hyp.6700","issn":"08856087","usgsCitation":"Wemple, B., Shanley, J., Denner, J., Ross, D., and Mills, K., 2007, Hydrology and water quality in two mountain basins of the northeastern US: Assessing baseline conditions and effects of ski area development, <i>in</i> Hydrological Processes, v. 21, no. 12, p. 1639-1650, https://doi.org/10.1002/hyp.6700.","startPage":"1639","endPage":"1650","numberOfPages":"12","costCenters":[],"links":[{"id":240220,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212695,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.6700"}],"volume":"21","issue":"12","noUsgsAuthors":false,"publicationDate":"2007-04-24","publicationStatus":"PW","scienceBaseUri":"505a36dde4b0c8380cd60a67","contributors":{"authors":[{"text":"Wemple, B.","contributorId":70257,"corporation":false,"usgs":true,"family":"Wemple","given":"B.","email":"","affiliations":[],"preferred":false,"id":425243,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shanley, J.","contributorId":37488,"corporation":false,"usgs":true,"family":"Shanley","given":"J.","affiliations":[],"preferred":false,"id":425242,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Denner, J.","contributorId":31215,"corporation":false,"usgs":true,"family":"Denner","given":"J.","email":"","affiliations":[],"preferred":false,"id":425240,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ross, D.","contributorId":7049,"corporation":false,"usgs":true,"family":"Ross","given":"D.","affiliations":[],"preferred":false,"id":425239,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mills, K.","contributorId":37036,"corporation":false,"usgs":true,"family":"Mills","given":"K.","affiliations":[],"preferred":false,"id":425241,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70192571,"text":"70192571 - 2007 - Characterization of nutrient, organic carbon, and sediment loads and concentrations from the Mississippi River into the northern Gulf of Mexico","interactions":[],"lastModifiedDate":"2017-10-26T14:58:44","indexId":"70192571","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1584,"text":"Estuaries and Coasts","active":true,"publicationSubtype":{"id":10}},"title":"Characterization of nutrient, organic carbon, and sediment loads and concentrations from the Mississippi River into the northern Gulf of Mexico","docAbstract":"<p>We synthesize and update the science supporting the Action Plan for Reducing, Mitigating, and Controlling Hypoxia in the Northern Gulf of Mexico (Mississippi River/Gulf of Mexico Watershed Nutrient Task Force 2001) with a focus on the spatial and temporal discharge and patterns of nutrient and organic carbon delivery to the northern Gulf of Mexico, including data through 2006. The discharge of the Mississippi River watershed over 200 years varies but is not demonstrably increasing or decreasing. About 30% of the Mississippi River was shunted westward to form the Atchafalaya River, which redistributed water and nutrient loads on the shelf. Data on nitrogen concentrations from the early 1900s demonstrate that the seasonal and annual concentrations in the lower river have increased considerably since then, including a higher spring loading, following the increase in fertilizer applications after World War<strong class=\"EmphasisTypeBold \">II</strong>. The loading of total nitrogen (TN) fell from 1990 to 2006, but the loading of total phosphorus (TP) has risen slightly, resulting in a decline in the TN:TP ratios. The present TN:TP ratios hover around an average indicative of potential nitrogen limitation on phytoplankton growth, or balanced growth limitation, but not phosphorus limitation. The dissolved nitrogen:dissolved silicate ratios are near the Redfield ratio indicative of growth limitations on diatoms. Although nutrient concentrations are relatively high compared to those in many other large rivers, the water quality in the Mississippi River is not unique in that nutrient loads can be described by a variety of land-use models. There is no net removal of nitrogen from water flowing through the Atchafalaya basin, but the concentrations of TP and suspended sediments are lower at the exit point (Morgan City, Louisiana) than in the water entering the Atchafalaya basin. The removal of nutrients entering offshore waters through diversion of river water into wetlands is presently less than 1% of the total loadings going directly offshore, and would be less than 8% if the 10,093 km<sup>2</sup> of coastal wetlands were successfully engineered for that purpose. Wetland loss is an insignificant contribution to the carbon loading offshore, compared to in situ marine production. The science-based conclusions in the Action Plan about nutrient loads and sources to the hypoxic zone off Louisiana are sustained by research and monitoring occurring in the subsequent 10 years.</p>","language":"English","publisher":"Springer","doi":"10.1007/BF02841333","usgsCitation":"Turner, R., Rabalais, N.N., Alexander, R.B., McIsaac, G., and Howarth, R.W., 2007, Characterization of nutrient, organic carbon, and sediment loads and concentrations from the Mississippi River into the northern Gulf of Mexico: Estuaries and Coasts, v. 30, no. 5, p. 773-790, https://doi.org/10.1007/BF02841333.","productDescription":"18 p.","startPage":"773","endPage":"790","ipdsId":"IP-003277","costCenters":[{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true}],"links":[{"id":347502,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Gulf of Mexico, Mississippi River","volume":"30","issue":"5","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a07fcf2e4b09af898c8ce3a","contributors":{"authors":[{"text":"Turner, R.E.","contributorId":39749,"corporation":false,"usgs":false,"family":"Turner","given":"R.E.","email":"","affiliations":[{"id":16756,"text":"Louisiana State University, Baton Rouge, LA","active":true,"usgs":false}],"preferred":false,"id":716458,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rabalais, N. N.","contributorId":198497,"corporation":false,"usgs":false,"family":"Rabalais","given":"N.","email":"","middleInitial":"N.","affiliations":[{"id":12699,"text":"Louisiana Universities Marine Consortium","active":true,"usgs":false}],"preferred":false,"id":716459,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Alexander, Richard B. 0000-0001-9166-0626 ralex@usgs.gov","orcid":"https://orcid.org/0000-0001-9166-0626","contributorId":541,"corporation":false,"usgs":true,"family":"Alexander","given":"Richard","email":"ralex@usgs.gov","middleInitial":"B.","affiliations":[{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true}],"preferred":true,"id":716460,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McIsaac, G.","contributorId":198496,"corporation":false,"usgs":false,"family":"McIsaac","given":"G.","email":"","affiliations":[{"id":16984,"text":"University of Illinois at Urbana-Champaign","active":true,"usgs":false}],"preferred":false,"id":716461,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Howarth, R. W.","contributorId":48126,"corporation":false,"usgs":false,"family":"Howarth","given":"R.","email":"","middleInitial":"W.","affiliations":[{"id":12722,"text":"Cornell University","active":true,"usgs":false}],"preferred":false,"id":716462,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031322,"text":"70031322 - 2007 - Highstand fans in the California borderland: The overlooked deep-water depositional systems","interactions":[],"lastModifiedDate":"2023-07-26T12:01:19.203508","indexId":"70031322","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Highstand fans in the California borderland: The overlooked deep-water depositional systems","docAbstract":"<div id=\"15648371\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>Contrary to widely used sequence-stratigraphic models, lowstand fans are only part of the turbidite depositional record; our analysis reveals that a comparable volume of coarse-grained sediment has been deposited in California borderland deep-water basins regardless of sea level. Sedimentation rates and periods of active sediment transport have been determined for deep-water canyon-channel systems contributing to the southeastern Gulf of Santa Catalina and San Diego Trough since 40 ka using an extensive grid of high-resolution and deep-penetration seismic-reflection data. A regional seismic-reflection horizon (40 ka) has been correlated across the study area using radiocarbon age dates from the Mohole borehole and U.S. Geological Survey piston cores. This study focused on the submarine fans fed by the Oceanside, Carlsbad, and La Jolla Canyons, all of which head within the length of the Ocean-side littoral cell. The Oceanside Canyon–channel system was active from 45 to 13 ka, and the Carlsbad system was active from 50 (or earlier) to 10 ka. The La Jolla system was active over two periods, from 50 (or earlier) to 40 ka, and from 13 ka to the present. One or more of these canyon-channel systems have been active regardless of sea level. During sea-level fluctuation, shelf width between the canyon head and the littoral zone is the primary control on canyon-channel system activity. Highstand fan deposition occurs when a majority of the sediment within the Oceanside littoral cell is intercepted by one of the canyon heads, currently La Jolla Canyon. Since 40 ka, the sedimentation rate on the La Jolla highstand fan has been &gt;2 times the combined rates on the Oceanside and Carlsbad lowstand fans.</p></div>","language":"English","publisher":"Geological Society of America","doi":"10.1130/G23800A.1","issn":"00917613","usgsCitation":"Covault, J.A., Normark, W.R., Romans, B.W., and Graham, S.A., 2007, Highstand fans in the California borderland: The overlooked deep-water depositional systems: Geology, v. 35, no. 9, p. 783-786, https://doi.org/10.1130/G23800A.1.","productDescription":"4 p.","startPage":"783","endPage":"786","numberOfPages":"4","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":240129,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.41,32.53 ], [ -124.41,42.01 ], [ -114.13,42.01 ], [ -114.13,32.53 ], [ -124.41,32.53 ] ] ] } } ] }","volume":"35","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a314ae4b0c8380cd5ddd0","contributors":{"authors":[{"text":"Covault, Jacob A.","contributorId":35951,"corporation":false,"usgs":true,"family":"Covault","given":"Jacob","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":431035,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Normark, William R.","contributorId":69570,"corporation":false,"usgs":true,"family":"Normark","given":"William","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":431038,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Romans, Brian W.","contributorId":40426,"corporation":false,"usgs":true,"family":"Romans","given":"Brian","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":431036,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Graham, Stephan A.","contributorId":45902,"corporation":false,"usgs":true,"family":"Graham","given":"Stephan","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":431037,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031155,"text":"70031155 - 2007 - Disruptions of stream sediment size and stability by lakes in mountain watersheds: Potential effects on periphyton biomass","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70031155","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2564,"text":"Journal of the North American Benthological Society","onlineIssn":"1937-237X","printIssn":"0887-3593","active":true,"publicationSubtype":{"id":10}},"title":"Disruptions of stream sediment size and stability by lakes in mountain watersheds: Potential effects on periphyton biomass","docAbstract":"The location of a stream reach relative to other landforms in a watershed is an important attribute. We hypothesized that lakes disrupt the frequency of finer, more mobile sediments and thereby change sediment transport processes such that benthic substrates are more stable (i.e., less mobile) below lakes than above lakes. In turn, we hypothesized that this reduced mobility would lead to greater periphyton biomass below lakes. We tested these hypotheses in study reaches above and below lakes in 3 mountain watersheds. To expand this comparison, we analyzed the relationship between sediment attributes and periphyton biomass in one watershed with and one watershed without a lake. We hypothesized that no clear pattern or change in sediment size or chlorophyll a (chl a) would be observed over a 3-km-long study reach without a lake. In contrast, we expected a clear discontinuity in both sediment size and chl a in a 7-km-long study reach interrupted by a lake. Average median sediment size (D50) was significantly larger (p < 0.01) in lake-outlet than lake-inlet reaches (41 mm vs 10 mm). Bed sediments in lake-outlet reaches were immobile during bankfull flows, whereas sediments at lake-inlet reaches were mobile during bankfull flows. Chlorophyll a was ???10x greater in lake-outlet reaches than in lake-inlet reaches, although this difference was not statistically significant (p = 0.17). The longitudinal analysis clearly showed geomorphic transitions in sediment size and mobility downstream of mountain lakes, and these geomorphic transitions might be associated with changes in periphyton biomass. Geomorphic transitions can alter sediment transport and should be considered in concert with other factors that are considered more commonly in benthic ecology, such as light, nutrients, and temperature. ?? 2007 by The North American Benthological Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the North American Benthological Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1899/06-086.1","issn":"08873593","usgsCitation":"Myers, A., Marcarelli, A., Arp, C., Baker, M.A., and Wurtsbaugh, W., 2007, Disruptions of stream sediment size and stability by lakes in mountain watersheds: Potential effects on periphyton biomass: Journal of the North American Benthological Society, v. 26, no. 3, p. 390-400, https://doi.org/10.1899/06-086.1.","startPage":"390","endPage":"400","numberOfPages":"11","costCenters":[],"links":[{"id":211707,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1899/06-086.1"},{"id":239049,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0227e4b0c8380cd4feed","contributors":{"authors":[{"text":"Myers, A.K.","contributorId":12262,"corporation":false,"usgs":true,"family":"Myers","given":"A.K.","email":"","affiliations":[],"preferred":false,"id":430280,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Marcarelli, A.M.","contributorId":66480,"corporation":false,"usgs":true,"family":"Marcarelli","given":"A.M.","affiliations":[],"preferred":false,"id":430283,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arp, C.D.","contributorId":54715,"corporation":false,"usgs":true,"family":"Arp","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":430282,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Baker, M. A.","contributorId":94849,"corporation":false,"usgs":false,"family":"Baker","given":"M.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":430284,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wurtsbaugh, W.A.","contributorId":36751,"corporation":false,"usgs":true,"family":"Wurtsbaugh","given":"W.A.","email":"","affiliations":[],"preferred":false,"id":430281,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031320,"text":"70031320 - 2007 - Predicting yellow toadflax infestations in the Flat Tops Wilderness of Colorado","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70031320","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1018,"text":"Biological Invasions","active":true,"publicationSubtype":{"id":10}},"title":"Predicting yellow toadflax infestations in the Flat Tops Wilderness of Colorado","docAbstract":"Understanding species-environment relationships is important to predict the spread of non-native species. Yellow toadflax (Linaria vulgaris Mill.) is an invasive perennial recently found in the Flat Tops Wilderness of the White River National Forest on the western slope of the Colorado Rocky Mountains. We hypothesized yellow toadflax occurrence could be predicted from easily measured site characteristics. We used logistic regression with stepwise selection to generate a model to predict yellow toadflax occurrence on a particular plot based on that site's physical characteristics. The experimental design was a paired-plot study in two locations using circular 1,018-m2 plots. Sixty-eight plots that did not contain yellow toadflax and 65 plots that contained yellow toadflax were sampled at the Ripple Creek site in 1999. In 2000, 54 non-toadflax plots and 55 toadflax-containing plots were sampled in the Marvine Creek site. Site characteristics sampled included: vegetation type; under-canopy light level; slope; aspect; soil properties; presence of disturbance, trails, and/or water; and total species richness. A model that correctly classified >90% of the 242 plots sampled included two vegetation type parameters, the presence of trails, and total species richness. Yellow toadflax is most often found in areas that were open-canopy sites, along trails, and with higher species diversity plots (>23 species). This approach can be used for other species in other areas to rapidly identify areas vulnerable to invasion. ?? 2007 Springer Science+Business Media, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biological Invasions","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10530-006-9075-8","issn":"13873547","usgsCitation":"Sutton, J., Stohlgren, T., and Beck, K., 2007, Predicting yellow toadflax infestations in the Flat Tops Wilderness of Colorado: Biological Invasions, v. 9, no. 7, p. 783-793, https://doi.org/10.1007/s10530-006-9075-8.","startPage":"783","endPage":"793","numberOfPages":"11","costCenters":[],"links":[{"id":212587,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10530-006-9075-8"},{"id":240092,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","issue":"7","noUsgsAuthors":false,"publicationDate":"2007-01-17","publicationStatus":"PW","scienceBaseUri":"505a81e3e4b0c8380cd7b7a8","contributors":{"authors":[{"text":"Sutton, J.R.","contributorId":32735,"corporation":false,"usgs":true,"family":"Sutton","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":431032,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stohlgren, T.J.","contributorId":7217,"corporation":false,"usgs":true,"family":"Stohlgren","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":431030,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Beck, K.G.","contributorId":9069,"corporation":false,"usgs":true,"family":"Beck","given":"K.G.","email":"","affiliations":[],"preferred":false,"id":431031,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031157,"text":"70031157 - 2007 - Separation of copper, iron, and zinc from complex aqueous solutions for isotopic measurement","interactions":[],"lastModifiedDate":"2018-10-16T10:06:37","indexId":"70031157","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1213,"text":"Chemical Geology","active":true,"publicationSubtype":{"id":10}},"title":"Separation of copper, iron, and zinc from complex aqueous solutions for isotopic measurement","docAbstract":"<p id=\"simple-para.0075\">The measurement of Cu, Fe, and Zn isotopes in natural samples may provide valuable information about biogeochemical processes in the environment. However, the widespread application of stable Cu, Fe, and Zn isotope chemistry to natural water systems remains limited by our ability to efficiently separate these trace elements from the greater concentrations of matrix elements. In this study, we present a new method for the isolation of Cu, Fe, and Zn from complex aqueous solutions using a single anion-exchange column with hydrochloric acid media. Using this method we are able to quantitatively separate Cu, Fe, and Zn from each other and from matrix elements in a single column elution. Elution of the elements of interest, as well as all other elements, through the anion-exchange column is a function of the speciation of each element in the various concentrations of HCl. We highlight the column chemistry by comparing our observations with published studies that have investigated the speciation of Cu, Fe, and Zn in chloride solutions.</p><p id=\"simple-para.0080\">The functionality of the column procedure was tested by measuring Cu, Fe, and Zn isotopes in a variety of stream water samples impacted by acid mine drainage. The accuracy and precision of Zn isotopic measurements was tested by doping Zn-free stream water with the Zn isotopic standard. The reproducibility of the entire column separation process and the overall precision of the isotopic measurements were also evaluated. The isotopic results demonstrate that the Cu, Fe, and Zn column separates from the tested stream waters are of sufficient purity to be analyzed directly using a multicollector inductively coupled plasma mass spectrometer (MC-ICP-MS), and that the measurements are fully-reproducible, accurate, and precise. Although limited in scope, these isotopic measurements reveal significant variations in<span>&nbsp;</span><i>δ</i><sup>65</sup>Cu (−&nbsp;1.41 to +&nbsp;0.30‰),<span>&nbsp;</span><i>δ</i><sup>56</sup>Fe (−&nbsp;0.56 to +&nbsp;0.34‰), and<span>&nbsp;</span><i>δ</i><sup>66</sup>Zn (0.31 to 0.49‰) among samples collected from different abandoned mines within a single watershed. Hence, Cu, Fe, and Zn isotopic measurements may be a powerful tool for fingerprinting specific metal sources and/or examining biogeochemical reactions within fresh water systems.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.chemgeo.2007.04.004","issn":"00092541","usgsCitation":"Borrok, D.M., Wanty, R.B., Ridley, W.I., Wolf, R.E., Lamothe, P.J., and Adams, M., 2007, Separation of copper, iron, and zinc from complex aqueous solutions for isotopic measurement: Chemical Geology, v. 242, no. 3-4, p. 400-414, https://doi.org/10.1016/j.chemgeo.2007.04.004.","productDescription":"15 p.","startPage":"400","endPage":"414","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":238546,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211281,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemgeo.2007.04.004"}],"volume":"242","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8d40e4b08c986b3182fe","contributors":{"authors":[{"text":"Borrok, David M.","contributorId":26056,"corporation":false,"usgs":true,"family":"Borrok","given":"David","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":430291,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wanty, Richard B. 0000-0002-2063-6423 rwanty@usgs.gov","orcid":"https://orcid.org/0000-0002-2063-6423","contributorId":443,"corporation":false,"usgs":true,"family":"Wanty","given":"Richard","email":"rwanty@usgs.gov","middleInitial":"B.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":430294,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ridley, William I. 0000-0001-6787-558X iridley@usgs.gov","orcid":"https://orcid.org/0000-0001-6787-558X","contributorId":1160,"corporation":false,"usgs":true,"family":"Ridley","given":"William","email":"iridley@usgs.gov","middleInitial":"I.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":430295,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wolf, Ruth E. rwolf@usgs.gov","contributorId":903,"corporation":false,"usgs":true,"family":"Wolf","given":"Ruth","email":"rwolf@usgs.gov","middleInitial":"E.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":430293,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lamothe, Paul J. plamothe@usgs.gov","contributorId":1298,"corporation":false,"usgs":true,"family":"Lamothe","given":"Paul","email":"plamothe@usgs.gov","middleInitial":"J.","affiliations":[],"preferred":true,"id":430292,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Adams, M.","contributorId":81176,"corporation":false,"usgs":true,"family":"Adams","given":"M.","email":"","affiliations":[],"preferred":false,"id":430296,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70031161,"text":"70031161 - 2007 - Oxygen and sulfur isotope systematics of sulfate produced by bacterial and abiotic oxidation of pyrite","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70031161","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Oxygen and sulfur isotope systematics of sulfate produced by bacterial and abiotic oxidation of pyrite","docAbstract":"To better understand reaction pathways of pyrite oxidation and biogeochemical controls on ??18O and ??34S values of the generated sulfate in acid mine drainage (AMD) and other natural environments, we conducted a series of pyrite oxidation experiments in the laboratory. Our biological and abiotic experiments were conducted under aerobic conditions by using O2 as an oxidizing agent and under anaerobic conditions by using dissolved Fe(III)aq as an oxidant with varying ??18OH2O values in the presence and absence of Acidithiobacillus ferrooxidans. In addition, aerobic biological experiments were designed as short- and long-term experiments where the final pH was controlled at ???2.7 and 2.2, respectively. Due to the slower kinetics of abiotic sulfide oxidation, the aerobic abiotic experiments were only conducted as long term with a final pH of ???2.7. The ??34SSO4 values from both the biological and abiotic anaerobic experiments indicated a small but significant sulfur isotope fractionation (???-0.7???) in contrast to no significant fractionation observed from any of the aerobic experiments. Relative percentages of the incorporation of water-derived oxygen and dissolved oxygen (O2) to sulfate were estimated, in addition to the oxygen isotope fractionation between sulfate and water, and dissolved oxygen. As expected, during the biological and abiotic anaerobic experiments all of the sulfate oxygen was derived from water. The percentage incorporation of water-derived oxygen into sulfate during the oxidation experiments by O2 varied with longer incubation and lower pH, but not due to the presence or absence of bacteria. These percentages were estimated as 85%, 92% and 87% from the short-term biological, long-term biological and abiotic control experiments, respectively. An oxygen isotope fractionation effect between sulfate and water (??18 OSO4 s(-) H2 O) of ???3.5??? was determined for the anaerobic (biological and abiotic) experiments. This measured ??18 OSO42 - s(-) H2 O value was then used to estimate the oxygen isotope fractionation effects (??18 OSO42 - s(-) O2) between sulfate and dissolved oxygen in the aerobic experiments which were -10.0???, -10.8???, and -9.8??? for the short-term biological, long-term biological and abiotic control experiments, respectively. Based on the similarity between ??18OSO4 values in the biological and abiotic experiments, it is suggested that ??18OSO4 values cannot be used to distinguish biological and abiotic mechanisms of pyrite oxidation. The results presented here suggest that Fe(III)aq is the primary oxidant for pyrite at pH < 3, even in the presence of dissolved oxygen, and that the main oxygen source of sulfate is water-oxygen under both aerobic and anaerobic conditions. ?? 2007 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geochimica et Cosmochimica Acta","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.gca.2007.04.017","issn":"00167037","usgsCitation":"Balci, N., Shanks, W.C., Mayer, B., and Mandernack, K., 2007, Oxygen and sulfur isotope systematics of sulfate produced by bacterial and abiotic oxidation of pyrite: Geochimica et Cosmochimica Acta, v. 71, no. 15, p. 3796-3811, https://doi.org/10.1016/j.gca.2007.04.017.","startPage":"3796","endPage":"3811","numberOfPages":"16","costCenters":[],"links":[{"id":211405,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.gca.2007.04.017"},{"id":238688,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"71","issue":"15","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7285e4b0c8380cd76b4d","contributors":{"authors":[{"text":"Balci, N.","contributorId":15005,"corporation":false,"usgs":true,"family":"Balci","given":"N.","email":"","affiliations":[],"preferred":false,"id":430314,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shanks, Wayne C. III","contributorId":100527,"corporation":false,"usgs":true,"family":"Shanks","given":"Wayne","suffix":"III","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":430317,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mayer, B.","contributorId":84538,"corporation":false,"usgs":true,"family":"Mayer","given":"B.","email":"","affiliations":[],"preferred":false,"id":430316,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mandernack, K.W.","contributorId":68913,"corporation":false,"usgs":true,"family":"Mandernack","given":"K.W.","email":"","affiliations":[],"preferred":false,"id":430315,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031164,"text":"70031164 - 2007 - Characterizing hydraulic conductivity with the direct-push permeameter","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70031164","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Characterizing hydraulic conductivity with the direct-push permeameter","docAbstract":"The direct-push permeameter (DPP) is a promising approach for obtaining high-resolution information about vertical variations in hydraulic conductivity (K) in shallow unconsolidated settings. This small-diameter tool, which consists of a short screened section with a pair of transducers inset in the tool near the screen, is pushed into the subsurface to a depth at which a K estimate is desired. A short hydraulic test is then performed by injecting water through the screen at a constant rate (less than 4 L/min) while pressure changes are monitored at the transducer locations. Hydraulic conductivity is calculated using the injection rate and the pressure changes in simple expressions based on Darcy's Law. In units of moderate or higher hydraulic conductivity (more than 1 m/d), testing at a single level can be completed within 10 to 15 min. Two major advantages of the method are its speed and the insensitivity of the K estimates to the zone of compaction created by tool advancement. The potential of the approach has been assessed at two extensively studied sites in the United States and Germany over a K range commonly faced in practical field investigations (0.02 to 500 m/d). The results of this assessment demonstrate that the DPP can provide high-resolution K estimates that are in good agreement with estimates obtained through other means. ?? 2007 National Ground Water Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2007.00300.x","issn":"0017467X","usgsCitation":"Butler, J., Dietrich, P., Wittig, V., and Christy, T., 2007, Characterizing hydraulic conductivity with the direct-push permeameter: Ground Water, v. 45, no. 4, p. 409-419, https://doi.org/10.1111/j.1745-6584.2007.00300.x.","startPage":"409","endPage":"419","numberOfPages":"11","costCenters":[],"links":[{"id":211434,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2007.00300.x"},{"id":238720,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","issue":"4","noUsgsAuthors":false,"publicationDate":"2007-03-12","publicationStatus":"PW","scienceBaseUri":"5059f4ffe4b0c8380cd4c01e","contributors":{"authors":[{"text":"Butler, J.J. Jr.","contributorId":12194,"corporation":false,"usgs":true,"family":"Butler","given":"J.J.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":430324,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dietrich, P.","contributorId":80074,"corporation":false,"usgs":true,"family":"Dietrich","given":"P.","email":"","affiliations":[],"preferred":false,"id":430326,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wittig, V.","contributorId":103468,"corporation":false,"usgs":true,"family":"Wittig","given":"V.","email":"","affiliations":[],"preferred":false,"id":430327,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Christy, T.","contributorId":63218,"corporation":false,"usgs":true,"family":"Christy","given":"T.","email":"","affiliations":[],"preferred":false,"id":430325,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031228,"text":"70031228 - 2007 - Growth and energy requirements of captive-reared Common Loon (<i>Gavia immer</i>) chicks","interactions":[],"lastModifiedDate":"2017-05-08T13:02:45","indexId":"70031228","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Growth and energy requirements of captive-reared Common Loon (<i>Gavia immer</i>) chicks","docAbstract":"<p><span>We measured the energy requirements during postnatal development of six hand-reared Common Loon (</span><i>Gavia immer</i><span>) chicks using continuous feeding trials and doubly labeled water. At fledging, the mean (± SE) body mass of chicks was 3,246 ± 51 g. They reached asymptotic body mass in ≈66 days and had a mean growth rate constant of 0.089 ± 0.002 day</span><sup>−1</sup><span>, which was greater than growth rate constants of other, similar-sized precocial birds. Between hatch and day 66, chicks allocated 16.5% of their metabolizable energy to new tissue, lower than the average for other bird species (20%), which might be expected considering their precocial mode of development. There was a developmental change in the assimilation efficiency of food (metabolizable energy coefficient), with a mean of 0.64 ± 0.03 in chicks aged 21 days, rising to 0.83 ± 0.07 in chicks aged 35 days.</span></p>","language":"English","publisher":"American Ornithological Society","doi":"10.1642/0004-8038(2007)124[1158:GAEROC]2.0.CO;2","issn":"00048038","usgsCitation":"Fournier, F., Karasov, W.H., Kenow, K., and Meyer, M., 2007, Growth and energy requirements of captive-reared Common Loon (<i>Gavia immer</i>) chicks: The Auk, v. 124, no. 4, p. 1158-1167, https://doi.org/10.1642/0004-8038(2007)124[1158:GAEROC]2.0.CO;2.","productDescription":"10 p.","startPage":"1158","endPage":"1167","costCenters":[],"links":[{"id":239021,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"124","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2de2e4b0c8380cd5c0eb","contributors":{"authors":[{"text":"Fournier, F.","contributorId":57001,"corporation":false,"usgs":true,"family":"Fournier","given":"F.","email":"","affiliations":[],"preferred":false,"id":430615,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Karasov, W. H.","contributorId":25889,"corporation":false,"usgs":false,"family":"Karasov","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":430613,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kenow, K.P.","contributorId":18302,"corporation":false,"usgs":true,"family":"Kenow","given":"K.P.","affiliations":[],"preferred":false,"id":430612,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Meyer, M.W.","contributorId":38094,"corporation":false,"usgs":true,"family":"Meyer","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":430614,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031318,"text":"70031318 - 2007 - Steeply dipping heaving bedrock, Colorado: Part 3 - Environmental controls and heaving processes","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70031318","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1574,"text":"Environmental & Engineering Geoscience","printIssn":"1078-7275","active":true,"publicationSubtype":{"id":10}},"title":"Steeply dipping heaving bedrock, Colorado: Part 3 - Environmental controls and heaving processes","docAbstract":"This paper examines the environmental processes and mechanisms that govern differential heaving in steeply dipping claystone bedrock near Denver, Colorado. Three potential heave mechanisms and causal processes were evaluated: (1) rebound expansion, from reduced overburden stress; (2) expansive gypsum-crystal precipitation, from oxidation of pyrite; and (3) swelling of clay minerals, from increased ground moisture. First, we documented the effect of short-term changes in overburden stress, atmospheric exposure, and ground moisture on bedrock at various field sites and in laboratory samples. Second, we documented differential heaving episodes in outcrops and at construction and developed sites. We found that unloading and exposure of the bedrock in construction-cut areas are essentially one-time processes that result in drying and desiccation of the near-surface bedrock, with no visible heaving response. In contrast, wetting produces a distinct swelling response in the claystone strata, and it may occur repeatedly as natural precipitation or from lawn irrigation. We documented 2.5 to 7.5 cm (1 to 3 in.) of differential heaving in 24 hours triggered by sudden infiltration of water at the exposed ground surface in outcrops and at construction sites. From these results, we interpret that rebound and pyrite weathering, both of which figure strongly into the long-term geologic evolution of the geologic framework, do not appear to be major heave mechanisms at these excavation depths. Heaving of the claystone takes two forms: (1) hydration swelling of dipping bentonitic beds or zones, and (2) hydration swelling within bedrock blocks accommodated by lateral, thrust-shear movements, along pre-existing bedding and fracture planes.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental and Engineering Geoscience","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2113/gseegeosci.13.4.325","issn":"10787275","usgsCitation":"Noe, D., Higgins, J., and Olsen, H.W., 2007, Steeply dipping heaving bedrock, Colorado: Part 3 - Environmental controls and heaving processes: Environmental & Engineering Geoscience, v. 13, no. 4, p. 325-344, https://doi.org/10.2113/gseegeosci.13.4.325.","startPage":"325","endPage":"344","numberOfPages":"20","costCenters":[],"links":[{"id":212558,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2113/gseegeosci.13.4.325"},{"id":240059,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9828e4b08c986b31be76","contributors":{"authors":[{"text":"Noe, D.C.","contributorId":95215,"corporation":false,"usgs":true,"family":"Noe","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":431025,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Higgins, J.D.","contributorId":37154,"corporation":false,"usgs":true,"family":"Higgins","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":431024,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olsen, H. W.","contributorId":10060,"corporation":false,"usgs":true,"family":"Olsen","given":"H.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":431023,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70031591,"text":"70031591 - 2007 - Using topographic lidar data to delineate the North Carolina Shoreline","interactions":[],"lastModifiedDate":"2017-10-04T18:58:37","indexId":"70031591","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Using topographic lidar data to delineate the North Carolina Shoreline","docAbstract":"<p>In North Carolina, shoreline change rates are an important component of the state's coastal management program. To enhance methods of measuring shoreline change, the NC Division of Coastal Management (DCM) is considering using mean high water (MHW) shorelines extracted from lidar data together with traditional wet/dry shorelines digitized from aerial photography. To test their compatibility, a wet/dry line and MHW shoreline derived from a concurrent 2004 oceanfront photography and lidar dataset were compared along a distance of 244 km. Results show that the MHW shoreline was seaward of the wet/dry shoreline by 2.82 m on average, and that this offset biased shoreline change rates by an average of 0.05 m/yr. The offset was greatest on low-sloping beaches experiencing higher water levels at the time of photography, but overall was small enough to suggest that the MHW shoreline can be a reliable substitute for the wet/dry shoreline.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Coastal Sediments '07 - Proceedings of 6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes","conferenceLocation":"New Orleans, LA","language":"English","publisher":"American Society of Civil Engineers","doi":"10.1061/40926(239)144","isbn":"0784409269; 9780784409268","usgsCitation":"Limber, P., List, J., Warren, J.D., Farris, A., and Weber, K., 2007, Using topographic lidar data to delineate the North Carolina Shoreline, <i>in</i> Coastal Sediments '07 - Proceedings of 6th International Symposium on Coastal Engineering and Science of Coastal Sediment Processes, New Orleans, LA, p. 1837-1850, https://doi.org/10.1061/40926(239)144.","productDescription":"14 p.","startPage":"1837","endPage":"1850","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":240002,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North Carolina","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -78.6749,33.841 ], [ -78.6749,36.5882 ], [ -75.46,36.5882 ], [ -75.46,33.841 ], [ -78.6749,33.841 ] ] ] } } ] }","noUsgsAuthors":false,"publicationDate":"2012-04-26","publicationStatus":"PW","scienceBaseUri":"505bc0bae4b08c986b32a2b9","contributors":{"authors":[{"text":"Limber, Patrick W.","contributorId":38904,"corporation":false,"usgs":true,"family":"Limber","given":"Patrick W.","affiliations":[],"preferred":false,"id":432244,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"List, Jeffrey H. jlist@usgs.gov","contributorId":2416,"corporation":false,"usgs":true,"family":"List","given":"Jeffrey H.","email":"jlist@usgs.gov","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"preferred":false,"id":432241,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Warren, Jeffrey D.","contributorId":21869,"corporation":false,"usgs":true,"family":"Warren","given":"Jeffrey","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":432242,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Farris, Amy S.","contributorId":28075,"corporation":false,"usgs":true,"family":"Farris","given":"Amy S.","affiliations":[],"preferred":false,"id":432243,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Weber, Kathryn M.","contributorId":83387,"corporation":false,"usgs":true,"family":"Weber","given":"Kathryn M.","affiliations":[],"preferred":false,"id":432245,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031035,"text":"70031035 - 2007 - Interaction and influence of two creeks on <i>Escherichia coli</i> concentrations of nearby beaches: Exploration of predictability and mechanisms","interactions":[],"lastModifiedDate":"2016-04-29T09:32:49","indexId":"70031035","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Interaction and influence of two creeks on <i>Escherichia coli</i> concentrations of nearby beaches: Exploration of predictability and mechanisms","docAbstract":"<p><span>The impact of river outfalls on beach water quality depends on numerous interacting factors. The delivery of contaminants by multiple creeks greatly complicates understanding of the source contributions, especially when pollution might originate up- or down-coast of beaches. We studied two beaches along Lake Michigan that are located between two creek outfalls to determine the hydrometeorologic factors influencing near-shore microbiologic water quality and the relative impact of the creeks. The creeks continuously delivered water with high concentrations of&nbsp;</span><i>Escherichia coli</i><span>&nbsp;to Lake Michigan, and the direction of transport of these bacteria was affected by current direction. Current direction reversals were associated with elevated&nbsp;</span><i>E. coli</i><span>&nbsp;concentrations at Central Avenue beach. Rainfall, barometric pressure, wave height, wave period, and creek specific conductance were significantly related to&nbsp;</span><i>E. coli</i><span>&nbsp;concentration at the beaches and were the parameters used in predictive models that best described&nbsp;</span><i>E. coli</i><span>&nbsp;variation at the two beaches. Multiple inputs to numerous beaches complicates the analysis and understanding of the relative relationship of sources but affords opportunities for showing how these complex creek inputs might interact to yield collective or individual effects on beach water quality.</span></p>","language":"English","publisher":"Alliance of Crop, Soil, and Environmental Science Societies","doi":"10.2134/jeq2007.0025","issn":"00472425","usgsCitation":"Nevers, M., Whitman, R., Frick, W., and Ge, Z., 2007, Interaction and influence of two creeks on <i>Escherichia coli</i> concentrations of nearby beaches: Exploration of predictability and mechanisms: Journal of Environmental Quality, v. 36, no. 5, p. 1338-1345, https://doi.org/10.2134/jeq2007.0025.","productDescription":"8 p.","startPage":"1338","endPage":"1345","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":238711,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211425,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2134/jeq2007.0025"}],"volume":"36","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3ca9e4b0c8380cd62f14","contributors":{"authors":[{"text":"Nevers, M.B.","contributorId":13787,"corporation":false,"usgs":true,"family":"Nevers","given":"M.B.","email":"","affiliations":[],"preferred":false,"id":429709,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Whitman, R.L.","contributorId":69750,"corporation":false,"usgs":true,"family":"Whitman","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":429711,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Frick, W.E.","contributorId":18169,"corporation":false,"usgs":true,"family":"Frick","given":"W.E.","email":"","affiliations":[],"preferred":false,"id":429710,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ge, Z.","contributorId":99769,"corporation":false,"usgs":true,"family":"Ge","given":"Z.","email":"","affiliations":[],"preferred":false,"id":429712,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031587,"text":"70031587 - 2007 - A GIS-based groundwater travel time model to evaluate stream nitrate concentration reductions from land use change","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70031587","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1539,"text":"Environmental Geology","active":true,"publicationSubtype":{"id":10}},"title":"A GIS-based groundwater travel time model to evaluate stream nitrate concentration reductions from land use change","docAbstract":"Excessive nitrate-nitrogen (nitrate) loss from agricultural watersheds is an environmental concern. A common conservation practice to improve stream water quality is to retire vulnerable row croplands to grass. In this paper, a groundwater travel time model based on a geographic information system (GIS) analysis of readily available soil and topographic variables was used to evaluate the time needed to observe stream nitrate concentration reductions from conversion of row crop land to native prairie in Walnut Creek watershed, Iowa. Average linear groundwater velocity in 5-m cells was estimated by overlaying GIS layers of soil permeability, land slope (surrogates for hydraulic conductivity and gradient, respectively) and porosity. Cells were summed backwards from the stream network to watershed divide to develop a travel time distribution map. Results suggested that groundwater from half of the land planted in prairie has reached the stream network during the 10 years of ongoing water quality monitoring. The mean travel time for the watershed was estimated to be 10.1 years, consistent with results from a simple analytical model. The proportion of land in the watershed and subbasins with prairie groundwater reaching the stream (10-22%) was similar to the measured reduction of stream nitrate (11-36%). Results provide encouragement that additional nitrate reductions in Walnut Creek are probable in the future as reduced nitrate groundwater from distal locations discharges to the stream network in the coming years. The high spatial resolution of the model (5-m cells) and its simplicity may make it potentially applicable for land managers interested in communicating lag time issues to the public, particularly related to nitrate concentration reductions over time. ?? 2007 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00254-007-0659-0","issn":"09430105","usgsCitation":"Schilling, K.E., and Wolter, C., 2007, A GIS-based groundwater travel time model to evaluate stream nitrate concentration reductions from land use change: Environmental Geology, v. 53, no. 2, p. 433-443, https://doi.org/10.1007/s00254-007-0659-0.","startPage":"433","endPage":"443","numberOfPages":"11","costCenters":[],"links":[{"id":212479,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00254-007-0659-0"},{"id":239969,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-02-14","publicationStatus":"PW","scienceBaseUri":"5059e2dee4b0c8380cd45ccf","contributors":{"authors":[{"text":"Schilling, K. E.","contributorId":61982,"corporation":false,"usgs":true,"family":"Schilling","given":"K.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":432232,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wolter, C.F.","contributorId":23301,"corporation":false,"usgs":true,"family":"Wolter","given":"C.F.","email":"","affiliations":[],"preferred":false,"id":432231,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70031572,"text":"70031572 - 2007 - Linking ground-water age and chemistry data along flow paths: Implications for trends and transformations of nitrate and pesticides","interactions":[],"lastModifiedDate":"2018-09-26T15:48:13","indexId":"70031572","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2233,"text":"Journal of Contaminant Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Linking ground-water age and chemistry data along flow paths: Implications for trends and transformations of nitrate and pesticides","docAbstract":"<p>Tracer-based ground-water ages, along with the concentrations of pesticides, nitrogen species, and other redox-active constituents, were used to evaluate the trends and transformations of agricultural chemicals along flow paths in diverse hydrogeologic settings. A range of conditions affecting the transformation of nitrate and pesticides (e.g., thickness of unsaturated zone, redox conditions) was examined at study sites in Georgia, North Carolina, Wisconsin, and California. Deethylatrazine (DEA), a transformation product of atrazine, was typically present at concentrations higher than those of atrazine at study sites with thick unsaturated zones but not at sites with thin unsaturated zones. Furthermore, the fraction of atrazine plus DEA that was present as DEA did not increase as a function of ground-water age. These findings suggest that atrazine degradation occurs primarily in the unsaturated zone with little or no degradation in the saturated zone. Similar observations were also made for metolachlor and alachlor. The fraction of the initial nitrate concentration found as excess N2 (N2 derived from denitrification) increased with ground-water age only at the North Carolina site, where oxic conditions were generally limited to the top 5??m of saturated thickness. Historical trends in fluxes to ground water were evaluated by relating the times of recharge of ground-water samples, estimated using chlorofluorocarbon concentrations, with concentrations of the parent compound at the time of recharge, estimated by summing the molar concentrations of the parent compound and its transformation products in the age-dated sample. Using this approach, nitrate concentrations were estimated to have increased markedly from 1960 to the present at all study sites. Trends in concentrations of atrazine, metolachlor, alachlor, and their degradates were related to the timing of introduction and use of these compounds. Degradates, and to a lesser extent parent compounds, were detected in ground water dating back to the time these compounds were introduced.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jconhyd.2007.05.007","issn":"01697722","usgsCitation":"Tesoriero, A., Saad, D.A., Burow, K., Frick, E.A., Puckett, L., and Barbash, J., 2007, Linking ground-water age and chemistry data along flow paths: Implications for trends and transformations of nitrate and pesticides: Journal of Contaminant Hydrology, v. 94, no. 1-2, p. 139-155, https://doi.org/10.1016/j.jconhyd.2007.05.007.","productDescription":"17 p.","startPage":"139","endPage":"155","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"links":[{"id":239700,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212242,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jconhyd.2007.05.007"}],"volume":"94","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a47d3e4b0c8380cd679e0","contributors":{"authors":[{"text":"Tesoriero, A. J.","contributorId":99127,"corporation":false,"usgs":true,"family":"Tesoriero","given":"A. J.","affiliations":[],"preferred":false,"id":432179,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Saad, D. A.","contributorId":85212,"corporation":false,"usgs":true,"family":"Saad","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":432178,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Burow, K.R. 0000-0001-6006-6667","orcid":"https://orcid.org/0000-0001-6006-6667","contributorId":48283,"corporation":false,"usgs":true,"family":"Burow","given":"K.R.","affiliations":[],"preferred":false,"id":432175,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Frick, E. A.","contributorId":61840,"corporation":false,"usgs":true,"family":"Frick","given":"E.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":432176,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Puckett, L.J.","contributorId":27503,"corporation":false,"usgs":true,"family":"Puckett","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":432174,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Barbash, J.E.","contributorId":62783,"corporation":false,"usgs":true,"family":"Barbash","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":432177,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70031632,"text":"70031632 - 2007 - Forcing of large-scale cycles of coastal change at the entrance to Willapa Bay, Washington","interactions":[],"lastModifiedDate":"2023-07-12T11:23:42.223421","indexId":"70031632","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Forcing of large-scale cycles of coastal change at the entrance to Willapa Bay, Washington","docAbstract":"<p>Anomalous morphological features within large estuaries may be: (1) recorders of external forces that periodically overwhelm the normal morphodynamic responses to estuarine energy fluxes, and (2) possible predictors of cycles of future coastal change. At the entrance to Willapa Bay, Washington, chronic beach erosion and frequent coastal flooding are related to the historical northward channel migration that destroyed the protective sand spits of Cape Shoalwater. Northward channel migration since the late 1800s conforms to the long-term net sediment transport direction. What requires explanation is periodic southward relocation of the trunk channel by as much as 5 km, and attendant construction of moderately large sand spits on the north side of the bay such as Kindred Island, Tokeland Peninsula, and Cape Shoalwater.</p>\n<br>\n<p>Both autocyclic and allocyclic processes may have been responsible for trunk channel realignment and associated spit deposition. Channel recycling may occur when the main channel becomes overextended to the north and the tidal flow is inefficient because of its decreased gradient and increased susceptibility to shoaling by the growth and migration of tidal sand ridges. Under those conditions trunk channel relocation would be facilitated by increased wave heights and water levels of El Niño winter storms. However, co-seismic subsidence is the most likely mechanism for abruptly increasing sand supply and longshore transport that would favor discrete periods of channel relocation and spit deposition. Unless external forcing changes sand supply and predominant sediment transport directions in the future, the relative rise in sea level, frequent winter storms, and local deficit in the sand budget assure that beach erosion will continue at the mouth of this large estuary.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.margeo.2007.07.008","issn":"00253227","usgsCitation":"Morton, R., Clifton, H.E., Buster, N.A., Peterson, R.L., and Gelfenbaum, G., 2007, Forcing of large-scale cycles of coastal change at the entrance to Willapa Bay, Washington: Marine Geology, v. 246, no. 1, p. 24-41, https://doi.org/10.1016/j.margeo.2007.07.008.","productDescription":"18 p.","startPage":"24","endPage":"41","numberOfPages":"18","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":240113,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Willapa Bay","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.166667,46.583333 ], [ -124.166667,46.75 ], [ -124.0,46.75 ], [ -124.0,46.583333 ], [ -124.166667,46.583333 ] ] ] } } ] }","volume":"246","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a130de4b0c8380cd544d5","contributors":{"authors":[{"text":"Morton, Robert A.","contributorId":88333,"corporation":false,"usgs":true,"family":"Morton","given":"Robert A.","affiliations":[],"preferred":false,"id":432434,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clifton, H. Edward","contributorId":46503,"corporation":false,"usgs":true,"family":"Clifton","given":"H.","email":"","middleInitial":"Edward","affiliations":[],"preferred":false,"id":432431,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Buster, Noreen A. 0000-0001-5069-9284 nbuster@usgs.gov","orcid":"https://orcid.org/0000-0001-5069-9284","contributorId":3750,"corporation":false,"usgs":true,"family":"Buster","given":"Noreen","email":"nbuster@usgs.gov","middleInitial":"A.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":432430,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Peterson, Russell L.","contributorId":55045,"corporation":false,"usgs":true,"family":"Peterson","given":"Russell","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":432432,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gelfenbaum, Guy","contributorId":79844,"corporation":false,"usgs":true,"family":"Gelfenbaum","given":"Guy","affiliations":[],"preferred":false,"id":432433,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70031564,"text":"70031564 - 2007 - Sequential solvent extraction for the modes of occurrence of selenium in coals of different ranks from the Huaibei Coalfield, China","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70031564","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1755,"text":"Geochemical Transactions","active":true,"publicationSubtype":{"id":10}},"title":"Sequential solvent extraction for the modes of occurrence of selenium in coals of different ranks from the Huaibei Coalfield, China","docAbstract":"Forms of selenium in bituminous coal, anthracite, and cokeite (natural coke) from Huaibei Coalfield, Anhui, China, have been determined by sequential solvent extraction. The selenium content in bulk samples is 4.0, 2.4, and 2.0 ??g/g in bituminous coal, anthracite, and cokeite, respectively. The six forms of selenium determined by six-step solvent extraction are water-leachable, ion-exchangeable, organic matter-associated, carbonate-associated, silicate-associated, and sulfide-associated. The predominant forms of selenium in bituminous coal are organic matter-associated (39.0%), sulfide-associated (21.1%), and silicate bound (31.8%); these three forms account for 92% of the total. The organic matter bound-selenium decrease dramatically from bituminous coal (39.0%) to anthracite (11.6%) and to cokeite (0%), indicating that organic matter bound selenium is converted to other forms during metamorphism of the coal, most likely sulfide-form. The sulfide-associated form increased remarkably from bituminous coal (21.1%) to anthracite (50.4%) and cokeite (54.5%), indicating the formation of selenium sulfide, possibly in pyrite during the transformation of bituminous coal to anthracite and cokeite. The silicate-associated selenium in bituminous coal (31.8%) is much higher than that in anthracite (16.4%) and cokeite (15.8%), indicating that silicate-associated selenium is partly converted to sulfide during metamorphism. ?? 2007 Zhang et al; licensee BioMed Central Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geochemical Transactions","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1186/1467-4866-8-14","issn":"14674866","usgsCitation":"Zhang, Y., Liu, G., Chou, C.L., Wang, L., and Kang, Y., 2007, Sequential solvent extraction for the modes of occurrence of selenium in coals of different ranks from the Huaibei Coalfield, China: Geochemical Transactions, v. 8, https://doi.org/10.1186/1467-4866-8-14.","costCenters":[],"links":[{"id":477106,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1186/1467-4866-8-14","text":"Publisher Index Page"},{"id":212601,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1186/1467-4866-8-14"},{"id":240109,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","noUsgsAuthors":false,"publicationDate":"2007-12-20","publicationStatus":"PW","scienceBaseUri":"505b8d55e4b08c986b31834c","contributors":{"authors":[{"text":"Zhang, Y.","contributorId":59969,"corporation":false,"usgs":true,"family":"Zhang","given":"Y.","email":"","affiliations":[],"preferred":false,"id":432144,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Liu, Gaisheng","contributorId":15158,"corporation":false,"usgs":true,"family":"Liu","given":"Gaisheng","email":"","affiliations":[],"preferred":false,"id":432141,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chou, C. L.","contributorId":32655,"corporation":false,"usgs":false,"family":"Chou","given":"C.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":432142,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wang, L.","contributorId":76904,"corporation":false,"usgs":true,"family":"Wang","given":"L.","email":"","affiliations":[],"preferred":false,"id":432145,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kang, Y.","contributorId":54431,"corporation":false,"usgs":true,"family":"Kang","given":"Y.","email":"","affiliations":[],"preferred":false,"id":432143,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70032762,"text":"70032762 - 2007 - Ovarian follicle dynamics of female Greater Scaup during egg production","interactions":[],"lastModifiedDate":"2018-05-13T12:33:26","indexId":"70032762","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2284,"text":"Journal of Field Ornithology","active":true,"publicationSubtype":{"id":10}},"title":"Ovarian follicle dynamics of female Greater Scaup during egg production","docAbstract":"<p><span>Studies of female waterfowl nutrient reserve use during egg production require a precise understanding of ovarian follicle dynamics to correctly interpret breeding status, and, therefore, derive proper inference. Concerns over numerical declines of North American scaup have increased the need to better understand the role of female condition in reproductive performance. We quantified ovarian follicle dynamics of female Greater Scaup (</span><i>Aythya marila</i><span>) breeding on the Yukon&ndash;Kuskokwim Delta, Alaska, using a method that accounts for within day variation in follicle size. We considered several models for describing changes in follicle growth with the best supported model estimating the duration of rapid follicle growth (RFG) to be 5.20 &plusmn; 0.52 days (&plusmn;95% confidence intervals) for each developing follicle. Average diameter and dry mass of preovulatory follicles were estimated to be 9.36 mm and 0.26 g, respectively, at the onset of RFG, and these follicle characteristics were 41.47 mm and 15.57 g, respectively, at ovulation. The average diameter of postovulatory follicles immediately following ovulation was estimated to be 17.35 mm, regressing quickly over several days. In addition, we derived predictive equations using diameter and dry mass to estimate the number of days before, and after, ovulation for pre- and postovulatory follicles, as well as an equation to estimate dry mass of damaged follicles. Our results allow precise definition of RFG and nest initiation dates, clutch size, and the daily energetic and nutritional demands of egg production at the individual level. This study provides the necessary foundation for additional work on Greater Scaup reproductive energetics and physiology, and offers an approach for quantifying ovarian follicle dynamics in other species.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1557-9263.2006.00086.x","issn":"02738570","usgsCitation":"Gorman, K.B., Flint, P.L., Esler, D., and Williams, T., 2007, Ovarian follicle dynamics of female Greater Scaup during egg production: Journal of Field Ornithology, v. 78, no. 1, p. 64-73, https://doi.org/10.1111/j.1557-9263.2006.00086.x.","productDescription":"10 p.","startPage":"64","endPage":"73","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":241495,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213834,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1557-9263.2006.00086.x"}],"volume":"78","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a71cce4b0c8380cd76778","contributors":{"authors":[{"text":"Gorman, Kristen B.","contributorId":42437,"corporation":false,"usgs":true,"family":"Gorman","given":"Kristen","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":437800,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Flint, Paul L. 0000-0002-8758-6993 pflint@usgs.gov","orcid":"https://orcid.org/0000-0002-8758-6993","contributorId":3284,"corporation":false,"usgs":true,"family":"Flint","given":"Paul","email":"pflint@usgs.gov","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":437801,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Esler, Daniel 0000-0001-5501-4555 desler@usgs.gov","orcid":"https://orcid.org/0000-0001-5501-4555","contributorId":5465,"corporation":false,"usgs":true,"family":"Esler","given":"Daniel","email":"desler@usgs.gov","affiliations":[{"id":12437,"text":"Simon Fraser University, Centre for Wildlife Ecology","active":true,"usgs":false},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":437799,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Williams, T.D.","contributorId":53968,"corporation":false,"usgs":false,"family":"Williams","given":"T.D.","email":"","affiliations":[{"id":6953,"text":"Monterey Bay Aquarium","active":true,"usgs":false}],"preferred":false,"id":437802,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031555,"text":"70031555 - 2007 - Characterizing dry deposition of mercury in urban runoff","interactions":[],"lastModifiedDate":"2012-03-12T17:21:14","indexId":"70031555","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3728,"text":"Water, Air, & Soil Pollution","onlineIssn":"1573-2932","printIssn":"0049-6979","active":true,"publicationSubtype":{"id":10}},"title":"Characterizing dry deposition of mercury in urban runoff","docAbstract":"Stormwater runoff from urban surfaces often contains elevated levels of toxic metals. When discharged directly into water bodies, these pollutants degrade water quality and impact aquatic life and human health. In this study, the composition of impervious surface runoff and associated rainfall was investigated for several storm events at an urban site in Orlando, Florida. Total mercury in runoff consisted of 58% particulate and 42% filtered forms. Concentration comparisons at the start and end of runoff events indicate that about 85% of particulate total mercury and 93% of particulate methylmercury were removed from the surface before runoff ended. Filtered mercury concentrations showed less than 50% reduction of both total and methylmercury from first flush to final flush. Direct comparison between rainfall and runoff at this urban site indicates dry deposition accounted for 22% of total inorganic mercury in runoff. ?? 2007 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water, Air, and Soil Pollution","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s11270-007-9396-y","issn":"00496979","usgsCitation":"Fulkerson, M., Nnadi, F., and Chasar, L., 2007, Characterizing dry deposition of mercury in urban runoff: Water, Air, & Soil Pollution, v. 185, no. 1-4, p. 21-32, https://doi.org/10.1007/s11270-007-9396-y.","startPage":"21","endPage":"32","numberOfPages":"12","costCenters":[],"links":[{"id":501071,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://stars.library.ucf.edu/facultybib2000/7135","text":"External Repository"},{"id":212477,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11270-007-9396-y"},{"id":239967,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"185","issue":"1-4","noUsgsAuthors":false,"publicationDate":"2007-09-05","publicationStatus":"PW","scienceBaseUri":"5059f4fde4b0c8380cd4c00c","contributors":{"authors":[{"text":"Fulkerson, M.","contributorId":64453,"corporation":false,"usgs":true,"family":"Fulkerson","given":"M.","affiliations":[],"preferred":false,"id":432081,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nnadi, F.N.","contributorId":37153,"corporation":false,"usgs":true,"family":"Nnadi","given":"F.N.","email":"","affiliations":[],"preferred":false,"id":432080,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chasar, L.S.","contributorId":65262,"corporation":false,"usgs":true,"family":"Chasar","given":"L.S.","email":"","affiliations":[],"preferred":false,"id":432082,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70146529,"text":"70146529 - 2007 - High-resolution measurements of suspended-sediment","interactions":[],"lastModifiedDate":"2015-04-16T10:03:02","indexId":"70146529","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"High-resolution measurements of suspended-sediment","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the Tenth International Symposium on River Sedimentation, August 1-4, 2007, Moscow, Russia","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Moscow State University","usgsCitation":"Topping, D.J., Wright, S., Melis, T., and Rubin, D.M., 2007, High-resolution measurements of suspended-sediment, <i>in</i> Proceedings of the Tenth International Symposium on River Sedimentation, August 1-4, 2007, Moscow, Russia, v. III, p. 330-338.","productDescription":"9 p.","startPage":"330","endPage":"338","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":502,"text":"Office of Surface Water","active":true,"usgs":true}],"links":[{"id":299717,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona","otherGeospatial":"Colorado River, Grand Canyon","volume":"III","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5530dd2fe4b0b22a1580615e","contributors":{"authors":[{"text":"Topping, David J. 0000-0002-2104-4577 dtopping@usgs.gov","orcid":"https://orcid.org/0000-0002-2104-4577","contributorId":715,"corporation":false,"usgs":true,"family":"Topping","given":"David","email":"dtopping@usgs.gov","middleInitial":"J.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":false,"id":545058,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wright, Scott 0000-0002-0387-5713 sawright@usgs.gov","orcid":"https://orcid.org/0000-0002-0387-5713","contributorId":1536,"corporation":false,"usgs":true,"family":"Wright","given":"Scott","email":"sawright@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":545059,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Melis, Theodore S. 0000-0003-0473-3968 tmelis@usgs.gov","orcid":"https://orcid.org/0000-0003-0473-3968","contributorId":1829,"corporation":false,"usgs":true,"family":"Melis","given":"Theodore S.","email":"tmelis@usgs.gov","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":545060,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rubin, David M. 0000-0003-1169-1452 drubin@usgs.gov","orcid":"https://orcid.org/0000-0003-1169-1452","contributorId":3159,"corporation":false,"usgs":true,"family":"Rubin","given":"David","email":"drubin@usgs.gov","middleInitial":"M.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":545061,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030915,"text":"70030915 - 2007 - Hazard assessment of the Tidal Inlet landslide and potential subsequent tsunami, Glacier Bay National Park, Alaska","interactions":[],"lastModifiedDate":"2023-07-26T12:08:19.693004","indexId":"70030915","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2604,"text":"Landslides","active":true,"publicationSubtype":{"id":10}},"title":"Hazard assessment of the Tidal Inlet landslide and potential subsequent tsunami, Glacier Bay National Park, Alaska","docAbstract":"<div id=\"Abs1-section\" class=\"c-article-section\"><div id=\"Abs1-content\" class=\"c-article-section__content\"><p>An unstable rock slump, estimated at 5 to 10 × 10<sup>6</sup>&nbsp;m<sup>3</sup>, lies perched above the northern shore of Tidal Inlet in Glacier Bay National Park, Alaska. This landslide mass has the potential to rapidly move into Tidal Inlet and generate large, long-period-impulse tsunami waves. Field and photographic examination revealed that the landslide moved between 1892 and 1919 after the retreat of the Little Ice Age glaciers from Tidal Inlet in 1890. Global positioning system measurements over a 2-year period show that the perched mass is presently moving at 3–4&nbsp;cm annually indicating the landslide remains unstable. Numerical simulations of landslide-generated waves suggest that in the western arm of Glacier Bay, wave amplitudes would be greatest near the mouth of Tidal Inlet and slightly decrease with water depth according to Green’s law. As a function of time, wave amplitude would be greatest within approximately 40&nbsp;min of the landslide entering water, with significant wave activity continuing for potentially several hours.</p></div></div>","language":"English","publisher":"Springer","doi":"10.1007/s10346-007-0084-1","issn":"1612510X","usgsCitation":"Wieczorek, G.F., Geist, E., Motyka, R., and Jakob, M., 2007, Hazard assessment of the Tidal Inlet landslide and potential subsequent tsunami, Glacier Bay National Park, Alaska: Landslides, v. 4, no. 3, p. 205-215, https://doi.org/10.1007/s10346-007-0084-1.","productDescription":"11 p.","startPage":"205","endPage":"215","numberOfPages":"11","costCenters":[],"links":[{"id":238964,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Glacier Bay National Park","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -138.2661646509066,\n              60.084483896083896\n            ],\n            [\n              -138.2661646509066,\n              57.37268391158136\n            ],\n            [\n              -132.48983440780475,\n              57.37268391158136\n            ],\n            [\n              -132.48983440780475,\n              60.084483896083896\n            ],\n            [\n              -138.2661646509066,\n              60.084483896083896\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-05-08","publicationStatus":"PW","scienceBaseUri":"505a2fc4e4b0c8380cd5d080","contributors":{"authors":[{"text":"Wieczorek, G. F.","contributorId":50143,"corporation":false,"usgs":true,"family":"Wieczorek","given":"G.","middleInitial":"F.","affiliations":[],"preferred":false,"id":429213,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Geist, E.L. 0000-0003-0611-1150","orcid":"https://orcid.org/0000-0003-0611-1150","contributorId":71993,"corporation":false,"usgs":true,"family":"Geist","given":"E.L.","affiliations":[],"preferred":false,"id":429214,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Motyka, R.J.","contributorId":49594,"corporation":false,"usgs":true,"family":"Motyka","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":429212,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jakob, M.","contributorId":26513,"corporation":false,"usgs":true,"family":"Jakob","given":"M.","email":"","affiliations":[],"preferred":false,"id":429211,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70031485,"text":"70031485 - 2007 - Polymorphic microsatellite DNA markers for the Florida manatee (Trichechus manatus latirostris)","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70031485","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2775,"text":"Molecular Ecology Notes","onlineIssn":"1471-8286","printIssn":"1471-8278","active":true,"publicationSubtype":{"id":10}},"title":"Polymorphic microsatellite DNA markers for the Florida manatee (Trichechus manatus latirostris)","docAbstract":"Florida manatees (Trichechus manatus latirostris) are marine mammals that inhabit the coastal waters and rivers of the southeastern USA, primarily Florida. Previous studies have shown that Florida manatees have low mitochondrial DNA variability, suggesting that nuclear DNA loci are necessary for discriminatory analyses. Here we report 10 polymorphic microsatellite loci with an average of 4.2 alleles per locus, and average heterozygosity of 50.1%. These loci have been developed for use in population studies, parentage assignment, and individual identification. ?? 2007 Blackwell Publishing Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Molecular Ecology Notes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1471-8286.2007.01781.x","issn":"14718278","usgsCitation":"Pause, K., Nourisson, C., Clark, A., Kellogg, M., Bonde, R., and McGuire, P., 2007, Polymorphic microsatellite DNA markers for the Florida manatee (Trichechus manatus latirostris): Molecular Ecology Notes, v. 7, no. 6, p. 1073-1076, https://doi.org/10.1111/j.1471-8286.2007.01781.x.","startPage":"1073","endPage":"1076","numberOfPages":"4","costCenters":[],"links":[{"id":239929,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212440,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1471-8286.2007.01781.x"}],"volume":"7","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-04-10","publicationStatus":"PW","scienceBaseUri":"505a7d03e4b0c8380cd79cd7","contributors":{"authors":[{"text":"Pause, K.C.","contributorId":77102,"corporation":false,"usgs":true,"family":"Pause","given":"K.C.","email":"","affiliations":[],"preferred":false,"id":431744,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nourisson, C.","contributorId":103873,"corporation":false,"usgs":true,"family":"Nourisson","given":"C.","affiliations":[],"preferred":false,"id":431746,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Clark, A.","contributorId":50476,"corporation":false,"usgs":false,"family":"Clark","given":"A.","affiliations":[],"preferred":false,"id":431741,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kellogg, M.E.","contributorId":65669,"corporation":false,"usgs":true,"family":"Kellogg","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":431743,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bonde, R. K. 0000-0001-9179-4376","orcid":"https://orcid.org/0000-0001-9179-4376","contributorId":63339,"corporation":false,"usgs":true,"family":"Bonde","given":"R. K.","affiliations":[],"preferred":false,"id":431742,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"McGuire, P.M.","contributorId":80624,"corporation":false,"usgs":true,"family":"McGuire","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":431745,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70031473,"text":"70031473 - 2007 - Identifying spatial variability of groundwater discharge in a wetland stream using a distributed temperature sensor","interactions":[],"lastModifiedDate":"2018-04-03T13:45:51","indexId":"70031473","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Identifying spatial variability of groundwater discharge in a wetland stream using a distributed temperature sensor","docAbstract":"<p><span>Discrete zones of groundwater discharge in a stream within a peat‐dominated wetland were identified on the basis of variations in streambed temperature using a distributed temperature sensor (DTS). The DTS gives measurements of the spatial (±1 m) and temporal (15 min) variation of streambed temperature over a much larger reach of stream (&gt;800 m) than previous methods. Isolated temperature anomalies observed along the stream correspond to focused groundwater discharge zones likely caused by soil pipes within the peat. The DTS also recorded variations in the number of temperature anomalies, where higher numbers correlated well with a gaining reach identified by stream gauging. Focused zones of groundwater discharge showed essentially no change in position over successive measurement periods. Results suggest DTS measurements will complement other techniques (e.g., seepage meters and stream gauging) and help further improve our understanding of groundwater–surface water dynamics in wetland streams.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2007WR006145","usgsCitation":"Lowry, C.S., Walker, J.F., Hunt, R.J., and Anderson, M.P., 2007, Identifying spatial variability of groundwater discharge in a wetland stream using a distributed temperature sensor: Water Resources Research, v. 43, no. 10, Article W10408; 9 p., https://doi.org/10.1029/2007WR006145.","productDescription":"Article W10408; 9 p.","costCenters":[],"links":[{"id":477079,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007wr006145","text":"Publisher Index Page"},{"id":239727,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"10","noUsgsAuthors":false,"publicationDate":"2007-10-06","publicationStatus":"PW","scienceBaseUri":"505a3858e4b0c8380cd61531","contributors":{"authors":[{"text":"Lowry, Christopher S.","contributorId":340,"corporation":false,"usgs":false,"family":"Lowry","given":"Christopher","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":431670,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walker, John F. jfwalker@usgs.gov","contributorId":1081,"corporation":false,"usgs":true,"family":"Walker","given":"John","email":"jfwalker@usgs.gov","middleInitial":"F.","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":true,"id":431669,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hunt, Randall J. 0000-0001-6465-9304 rjhunt@usgs.gov","orcid":"https://orcid.org/0000-0001-6465-9304","contributorId":1129,"corporation":false,"usgs":true,"family":"Hunt","given":"Randall","email":"rjhunt@usgs.gov","middleInitial":"J.","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":true,"id":431668,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Anderson, Mary P.","contributorId":147842,"corporation":false,"usgs":false,"family":"Anderson","given":"Mary","email":"","middleInitial":"P.","affiliations":[{"id":16925,"text":"University of Wisconsin-Madison","active":true,"usgs":false}],"preferred":false,"id":431671,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70032831,"text":"70032831 - 2007 - Cryovolcanic features on Titan's surface as revealed by the Cassini Titan Radar Mapper","interactions":[],"lastModifiedDate":"2018-12-07T16:28:28","indexId":"70032831","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Cryovolcanic features on Titan's surface as revealed by the Cassini Titan Radar Mapper","docAbstract":"<p>The Cassini Titan Radar Mapper obtained Synthetic Aperture Radar images of Titan's surface during four fly-bys during the mission's first year. These images show that Titan's surface is very complex geologically, showing evidence of major planetary geologic processes, including cryovolcanism. This paper discusses the variety of cryovolcanic features identified from SAR images, their possible origin, and their geologic context. The features which we identify as cryovolcanic in origin include a large (180 km diameter) volcanic construct (dome or shield), several extensive flows, and three calderas which appear to be the source of flows. The composition of the cryomagma on Titan is still unknown, but constraints on rheological properties can be estimated using flow thickness. Rheological properties of one flow were estimated and appear inconsistent with ammonia-water slurries, and possibly more consistent with ammonia-water-methanol slurries. The extent of cryovolcanism on Titan is still not known, as only a small fraction of the surface has been imaged at sufficient resolution. Energetic considerations suggest that cryovolcanism may have been a dominant process in the resurfacing of Titan.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Icarus","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.icarus.2006.09.006","issn":"00191035","usgsCitation":"Lopes, R., Mitchell, K.L., Stofan, E.R., Lunine, J.I., Lorenz, R.D., Paganelli, F., Kirk, R.L., Wood, C.A., Wall, S.D., Robshaw, L., Fortes, A., Neish, C.D., Radebaugh, J., Reffet, E., Ostro, S., Elachi, C., Allison, M., Anderson, Y., Boehmer, R., Boubin, G., Callahan, P.S., Encrenaz, P., Flamini, E., Francescetti, G., Gim, Y., Hamilton, G., Hensley, S., Janssen, M.A., Johnson, W., Kelleher, K., Muhleman, D., Ori, G., Orosei, R., Picardi, G., Posa, F., Roth, L., Seu, R., Shaffer, S., Soderblom, L.A., Stiles, B., Vetrella, S., West, R., Wye, L., and Zebker, H., 2007, Cryovolcanic features on Titan's surface as revealed by the Cassini Titan Radar Mapper: Icarus, v. 186, no. 2, p. 395-412, https://doi.org/10.1016/j.icarus.2006.09.006.","productDescription":"18 p.","startPage":"395","endPage":"412","numberOfPages":"18","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":487760,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hal-univ-paris.archives-ouvertes.fr/hal-03658047","text":"External Repository"},{"id":241467,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Titan","volume":"186","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fcf5e4b0c8380cd4e540","contributors":{"authors":[{"text":"Lopes, Rosaly","contributorId":210492,"corporation":false,"usgs":false,"family":"Lopes","given":"Rosaly","email":"","affiliations":[],"preferred":false,"id":438133,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mitchell, K. L.","contributorId":62734,"corporation":false,"usgs":false,"family":"Mitchell","given":"K.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":438138,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stofan, Ellen R.","contributorId":103746,"corporation":false,"usgs":true,"family":"Stofan","given":"Ellen","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":438153,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lunine, Jonathan I.","contributorId":82447,"corporation":false,"usgs":true,"family":"Lunine","given":"Jonathan","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":438134,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lorenz, Ralf D.","contributorId":147255,"corporation":false,"usgs":false,"family":"Lorenz","given":"Ralf","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":438132,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Paganelli, F.","contributorId":17353,"corporation":false,"usgs":true,"family":"Paganelli","given":"F.","email":"","affiliations":[],"preferred":false,"id":438117,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kirk, Randolph L. 0000-0003-0842-9226 rkirk@usgs.gov","orcid":"https://orcid.org/0000-0003-0842-9226","contributorId":2765,"corporation":false,"usgs":true,"family":"Kirk","given":"Randolph","email":"rkirk@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":438149,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Wood, C. 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