{"pageNumber":"785","pageRowStart":"19600","pageSize":"25","recordCount":46706,"records":[{"id":70033983,"text":"70033983 - 2009 - The Eocene-Oligocene sedimentary record in the Chesapeake Bay impact structure: Implications for climate and sea-level changes on the western Atlantic margin","interactions":[],"lastModifiedDate":"2020-10-02T14:11:41.951625","indexId":"70033983","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"The Eocene-Oligocene sedimentary record in the Chesapeake Bay impact structure: Implications for climate and sea-level changes on the western Atlantic margin","docAbstract":"A multidisciplinary investigation of the Eocene-Oligocene transition in the International Continental Scientific Drilling Program (ICDP)-U.S. Geological Survey (USGS) Eyreville core from the Chesapeake Bay impact basin was conducted in order to document environmental changes and sequence stratigraphic setting. Planktonic foraminifera and calcareous nannofossil biostratigraphy indicate that the Eyreville core includes an expanded upper Eocene (Biozones E15 to E16 and NP19/20 to NP21, respectively) and a condensed Oligocene-Miocene (NP24-NN1) sedimentary sequence. The Eocene-Oligocene contact corresponds to a =3-Ma-long hiatus. Eocene- Oligocene sedimentation is dominated by great diversity and varying amounts of detrital and authigenic minerals. Four sedimentary intervals are identified by lithology and mineral content: (1) A 30-m-thick, smectite- and illite-rich interval directly overlies the Exmore Formation, suggesting long-term reworking of impact debris within the Chesapeake Bay impact structure. (2) Subsequently, an increase in kaolinite content suggests erosion from soils developed during late Eocene warm and humid climate in agreement with data derived from other Atlantic sites. However, the kaolinite increase may also be explained by change to a predominant sediment input from outside the Chesapeake Bay impact structure caused by progradation of more proximal facies belts during the highstand systems tract of the late Eocene sequence E10.Spectral analysis based on gamma-ray and magnetic susceptibility logs suggests infl uence of 1.2 Ma low-amplitude oscillation of the obliquity period during the late Eocene. (3) During the latest Eocene (Biozones NP21 and E16), several lithological contacts (clay to clayey silt) occur concomitant with a prominent change in the mineralogical composition with illite as a major component: This lithological change starts close to the Biozone NP19/20-NP21 boundary and may correspond to sequence boundary E10-E11 as observed in other northwest Atlantic margin sections. It could result from a shift to more distal depositional environments and condensed sedimentation during maximum fl ooding, rather than refl ecting a climatic change in the hinterland. The distinct 1% increase of the oxygen isotopes may correspond to the short-term latest Eocene \"precursor isotope event.\" (4) The abrupt increase of sediment grainsize, carbonate content, and abundance of authigenic minerals (glauconite) across the major unconformity that separates Eocene from Oligocene sediments in the Eyreville core refl ects deposition in shallower settings associated with erosion, winnowing, and reworking. Sediments within the central crater were affected by the rapid eustatic sea-level changes associated with the greenhouse-icehouse transition, as well as by an abrupt major uplift event and possibly enhanced current activity on the northwestern Atlantic margin. ?? 2009 The Geological Society of America.","language":"English","publisher":"Geological Society of America","doi":"10.1130/2009.2458(35)","issn":"00721077","usgsCitation":"Schulte, P., Wade, B., Kontny, A., and Self-Trail, J., 2009, The Eocene-Oligocene sedimentary record in the Chesapeake Bay impact structure: Implications for climate and sea-level changes on the western Atlantic margin: Special Paper of the Geological Society of America, v. 458, p. 839-865, https://doi.org/10.1130/2009.2458(35).","productDescription":"27 p.","startPage":"839","endPage":"865","numberOfPages":"27","costCenters":[{"id":242,"text":"Eastern Geographic Science Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":244446,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United Staes","otherGeospatial":"Chesapeake Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -78.0908203125,\n              36.049098959065645\n            ],\n            [\n              -74.59716796875,\n              36.049098959065645\n            ],\n            [\n              -74.59716796875,\n              40.16208338164617\n            ],\n            [\n              -78.0908203125,\n              40.16208338164617\n            ],\n            [\n              -78.0908203125,\n              36.049098959065645\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"458","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba71fe4b08c986b321393","contributors":{"authors":[{"text":"Schulte, P.","contributorId":48792,"corporation":false,"usgs":true,"family":"Schulte","given":"P.","email":"","affiliations":[],"preferred":false,"id":443507,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wade, B.S.","contributorId":34742,"corporation":false,"usgs":true,"family":"Wade","given":"B.S.","email":"","affiliations":[],"preferred":false,"id":443506,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kontny, A.","contributorId":80919,"corporation":false,"usgs":true,"family":"Kontny","given":"A.","email":"","affiliations":[],"preferred":false,"id":443509,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Self-Trail, Jean 0000-0002-3018-4985 jstrail@usgs.gov","orcid":"https://orcid.org/0000-0002-3018-4985","contributorId":147370,"corporation":false,"usgs":true,"family":"Self-Trail","given":"Jean","email":"jstrail@usgs.gov","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":535163,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033921,"text":"70033921 - 2009 - Surface complexation modeling of U(VI) adsorption by aquifer sediments from a former mill tailings site at Rifle, Colorado","interactions":[],"lastModifiedDate":"2012-03-12T17:21:33","indexId":"70033921","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Surface complexation modeling of U(VI) adsorption by aquifer sediments from a former mill tailings site at Rifle, Colorado","docAbstract":"A study of U(VI) adsorption by aquifer sediment samples from a former uranium mill tailings site at Rifle, Colorado, was conducted under oxic conditions as a function of pH, U(VI), Ca, and dissolved carbonate concentration. Batch adsorption experiments were performed using &lt;2mm size sediment fractions, a sand-sized fraction, and artificial groundwater solutions prepared to simulate the field groundwater composition. To encompass the geochemical conditions of the alluvial aquifer at the site, the experimental conditions ranged from 6.8 ?? 10<sup>-8</sup> to 10<sup>-5</sup> M in [U(VI)]tot, 7.2 to 8.0 in pH, 3.0 ?? 10<sup>-3</sup> to 6.0 ?? 10 <sup>-3</sup> M in [Ca<sup>2+</sup>], and 0.05 to 2.6% in partial pressure of carbon dioxide. Surface area normalized U(VI) adsorption Kd values for the sand and &lt;2 mm sediment fraction were similar, suggesting a similar reactive surface coating on both fractions. A two-site two-reaction, nonelectrostatic generalized composite surface complexation model was developed and successfully simulated the U(VI) adsorption data. The model successfully predicted U(VI) adsorption observed from a multilevel sampling well installed at the site. A comparison of the model with the one developed previously for a uranium mill tailings site at Naturita, Colorado, indicated that possible calcite nonequilibrium of dissolved calcium concentration should be evaluated. The modeling results also illustrate the importance of the range of data used in deriving the best fit model parameters. ?? 2009 American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Science and Technology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/es902164n","issn":"0013936X","usgsCitation":"Hyun, S., Fox, P., Davis, J., Campbell, K., Hayes, K., and Long, P., 2009, Surface complexation modeling of U(VI) adsorption by aquifer sediments from a former mill tailings site at Rifle, Colorado: Environmental Science & Technology, v. 43, no. 24, p. 9368-9373, https://doi.org/10.1021/es902164n.","startPage":"9368","endPage":"9373","numberOfPages":"6","costCenters":[],"links":[{"id":214186,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es902164n"},{"id":241880,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"24","noUsgsAuthors":false,"publicationDate":"2009-11-18","publicationStatus":"PW","scienceBaseUri":"505b9f9ce4b08c986b31e6f1","contributors":{"authors":[{"text":"Hyun, S.P.","contributorId":88164,"corporation":false,"usgs":true,"family":"Hyun","given":"S.P.","email":"","affiliations":[],"preferred":false,"id":443189,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fox, P.M.","contributorId":47949,"corporation":false,"usgs":true,"family":"Fox","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":443187,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Davis, J.A.","contributorId":71694,"corporation":false,"usgs":true,"family":"Davis","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":443188,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Campbell, K.M.","contributorId":42438,"corporation":false,"usgs":true,"family":"Campbell","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":443186,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hayes, K.F.","contributorId":103089,"corporation":false,"usgs":true,"family":"Hayes","given":"K.F.","email":"","affiliations":[],"preferred":false,"id":443190,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Long, P.E.","contributorId":37514,"corporation":false,"usgs":true,"family":"Long","given":"P.E.","email":"","affiliations":[],"preferred":false,"id":443185,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70032751,"text":"70032751 - 2009 - Acid rock drainage and climate change","interactions":[],"lastModifiedDate":"2018-10-03T10:57:06","indexId":"70032751","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2302,"text":"Journal of Geochemical Exploration","active":true,"publicationSubtype":{"id":10}},"title":"Acid rock drainage and climate change","docAbstract":"Rainfall events cause both increases and decreases in acid and metals concentrations and their loadings from mine wastes, and unmined mineralized areas, into receiving streams based on data from 3 mines sites in the United States and other sites outside the US. Gradual increases in concentrations occur during long dry spells and sudden large increases are observed during the rising limb of the discharge following dry spells (first flush). By the time the discharge peak has occurred, concentrations are usually decreased, often to levels below those of pre-storm conditions and then they slowly rise again during the next dry spell. These dynamic changes in concentrations and loadings are related to the dissolution of soluble salts and the flushing out of waters that were concentrated by evaporation. The underlying processes, pyrite oxidation and host rock dissolution, do not end until the pyrite is fully weathered, which can take hundreds to thousands of years. These observations can be generalized to predict future conditions caused by droughts related to El Ni??o and climate change associated with global warming. Already, the time period for dry summers is lengthening in the western US and rainstorms are further apart and more intense when they happen. Consequently, flushing of inactive or active mine sites and mineralized but unmined sites will cause larger sudden increases in concentrations that will be an ever increasing danger to aquatic life with climate change. Higher average concentrations will be observed during longer low-flow periods. Remediation efforts will have to increase the capacity of engineered designs to deal with more extreme conditions, not average conditions of previous years.","language":"English","publisher":"Elsevier","doi":"10.1016/j.gexplo.2008.08.002","issn":"03756","usgsCitation":"Nordstrom, D.K., 2009, Acid rock drainage and climate change: Journal of Geochemical Exploration, v. 100, no. 2-3, p. 97-104, https://doi.org/10.1016/j.gexplo.2008.08.002.","productDescription":"8 p.","startPage":"97","endPage":"104","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":241326,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213675,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.gexplo.2008.08.002"}],"volume":"100","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e694e4b0c8380cd474fb","contributors":{"authors":[{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":false,"id":437741,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70035712,"text":"70035712 - 2009 - Small-footprint, waveform-resolving lidar estimation of submerged and sub-canopy topography in coastal environments","interactions":[],"lastModifiedDate":"2012-03-12T17:21:51","indexId":"70035712","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2068,"text":"International Journal of Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Small-footprint, waveform-resolving lidar estimation of submerged and sub-canopy topography in coastal environments","docAbstract":"The experimental advanced airborne research lidar (EAARL) is an airborne lidar instrument designed to map near-shore submerged topography and adjacent land elevations simultaneously. This study evaluated data acquired by the EAARL system in February 2003 and March 2004 along the margins of Tampa Bay, Florida, USA, to map bare-earth elevations under a variety of vegetation types and submerged topography in shallow, turbid water conditions. A spatial filtering algorithm, known as the iterative random consensus filter (IRCF), was used to extract ground elevations from a point cloud of processed last-surface EAARL returns. Filtered data were compared with acoustic and field measurements acquired in shallow submerged (0-2.5 m water depth) and sub-canopy environments. Root mean square elevation errors (RMSEs) ranged from 10-14 cm for submerged topography to 16-20 cm for sub-canopy topography under a variety of vegetation communities. The effect of lidar sampling angles and global positioning system (GPS) satellite configuration on accuracy was investigated. Results show high RMSEs for data acquired during periods of poor satellite configuration and at large sampling angles along the edges of the lidar scan. The results presented in this study confirm the cross-environment capability of a green-wavelength, waveform-resolving lidar system, making it an ideal tool for mapping coastal environments.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Remote Sensing","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/01431160802395227","issn":"01431161","usgsCitation":"Nayegandhi, A., Brock, J.C., and Wright, C.W., 2009, Small-footprint, waveform-resolving lidar estimation of submerged and sub-canopy topography in coastal environments: International Journal of Remote Sensing, v. 30, no. 4, p. 861-878, https://doi.org/10.1080/01431160802395227.","startPage":"861","endPage":"878","numberOfPages":"18","costCenters":[],"links":[{"id":244299,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216429,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/01431160802395227"}],"volume":"30","issue":"4","noUsgsAuthors":false,"publicationDate":"2009-03-23","publicationStatus":"PW","scienceBaseUri":"505b9193e4b08c986b319997","contributors":{"authors":[{"text":"Nayegandhi, A.","contributorId":95578,"corporation":false,"usgs":true,"family":"Nayegandhi","given":"A.","affiliations":[],"preferred":false,"id":452022,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brock, J. C.","contributorId":36095,"corporation":false,"usgs":true,"family":"Brock","given":"J.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":452020,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wright, C. W. wwright@usgs.gov","contributorId":49758,"corporation":false,"usgs":true,"family":"Wright","given":"C.","email":"wwright@usgs.gov","middleInitial":"W.","affiliations":[],"preferred":false,"id":452021,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035946,"text":"70035946 - 2009 - A national look at carbon capture and storage-National carbon sequestration database and geographical information system (NatCarb)","interactions":[],"lastModifiedDate":"2012-03-12T17:21:50","indexId":"70035946","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"A national look at carbon capture and storage-National carbon sequestration database and geographical information system (NatCarb)","docAbstract":"The US Department of Energy's Regional Carbon Sequestration Partnerships (RCSPs) are responsible for generating geospatial data for the maps displayed in the Carbon Sequestration Atlas of the United States and Canada. Key geospatial data (carbon sources, potential storage sites, transportation, land use, etc.) are required for the Atlas, and for efficient implementation of carbon sequestration on a national and regional scale. The National Carbon Sequestration Database and Geographical Information System (NatCarb) is a relational database and geographic information system (GIS) that integrates carbon storage data generated and maintained by the RCSPs and various other sources. The purpose of NatCarb is to provide a national view of the carbon capture and storage potential in the U.S. and Canada. The digital spatial database allows users to estimate the amount of CO<sub>2</sub> emitted by sources (such as power plants, refineries and other fossil-fuel-consuming industries) in relation to geologic formations that can provide safe, secure storage sites over long periods of time. The NatCarb project is working to provide all stakeholders with improved online tools for the display and analysis of CO<sub>2</sub> carbon capture and storage data. NatCarb is organizing and enhancing the critical information about CO<sub>2</sub> sources and developing the technology needed to access, query, model, analyze, display, and distribute natural resource data related to carbon management. Data are generated, maintained and enhanced locally at the RCSP level, or at specialized data warehouses, and assembled, accessed, and analyzed in real-time through a single geoportal. NatCarb is a functional demonstration of distributed data-management systems that cross the boundaries between institutions and geographic areas. It forms the first step toward a functioning National Carbon Cyberinfrastructure (NCCI). NatCarb provides access to first-order information to evaluate the costs, economic potential and societal issues of CO<sub>2</sub> capture and storage, including public perception and regulatory aspects. NatCarb online access has been modified to address the broad needs of a spectrum of users. NatCarb includes not only GIS and database query tools for high-end user, but simplified display for the general public using readily available web tools such as Google Earth???and Google Maps???. Not only is NatCarb connected to all the RCSPs, but data are also pulled from public servers including the U.S. Geological Survey-EROS Data Center and from the Geography Network. Data for major CO<sub>2</sub> sources have been obtained from U.S. Environmental Protection Agency (EPA) databases, and data on major coal basins and coalbed methane wells were obtained from the Energy Information Administration (EIA). ?? 2009 Elsevier Ltd. All rights reserved.","largerWorkTitle":"Energy Procedia","conferenceTitle":"9th International Conference on Greenhouse Gas Control Technologies, GHGT-9","conferenceDate":"16 November 2008 through 20 November 2008","conferenceLocation":"Washington DC","language":"English","doi":"10.1016/j.egypro.2009.02.057","issn":"18766102","usgsCitation":"Carr, T., Iqbal, A., Callaghan, N., Dana-Adkins-Heljeson, Look, K., Saving, S., and Nelson, K., 2009, A national look at carbon capture and storage-National carbon sequestration database and geographical information system (NatCarb), <i>in</i> Energy Procedia, v. 1, no. 1, Washington DC, 16 November 2008 through 20 November 2008, p. 2841-2847, https://doi.org/10.1016/j.egypro.2009.02.057.","startPage":"2841","endPage":"2847","numberOfPages":"7","costCenters":[],"links":[{"id":476347,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.egypro.2009.02.057","text":"Publisher Index Page"},{"id":216178,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.egypro.2009.02.057"},{"id":244029,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e492e4b0c8380cd4672e","contributors":{"authors":[{"text":"Carr, T.R.","contributorId":37094,"corporation":false,"usgs":true,"family":"Carr","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":453259,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Iqbal, A.","contributorId":49172,"corporation":false,"usgs":true,"family":"Iqbal","given":"A.","email":"","affiliations":[],"preferred":false,"id":453260,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Callaghan, N.","contributorId":31228,"corporation":false,"usgs":true,"family":"Callaghan","given":"N.","email":"","affiliations":[],"preferred":false,"id":453256,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dana-Adkins-Heljeson","contributorId":127988,"corporation":true,"usgs":false,"organization":"Dana-Adkins-Heljeson","id":535166,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Look, K.","contributorId":74594,"corporation":false,"usgs":true,"family":"Look","given":"K.","email":"","affiliations":[],"preferred":false,"id":453261,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Saving, S.","contributorId":7937,"corporation":false,"usgs":true,"family":"Saving","given":"S.","email":"","affiliations":[],"preferred":false,"id":453255,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Nelson, K.","contributorId":33492,"corporation":false,"usgs":true,"family":"Nelson","given":"K.","affiliations":[],"preferred":false,"id":453257,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70034264,"text":"70034264 - 2009 - Halogen degassing during ascent and eruption of water-poor basaltic magma","interactions":[],"lastModifiedDate":"2017-10-25T12:21:50","indexId":"70034264","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","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":"Halogen degassing during ascent and eruption of water-poor basaltic magma","docAbstract":"A study of volcanic gas composition and matrix glass volatile concentrations has allowed a model for halogen degassing to be formulated for K??lauea Volcano, Hawai'i. Volcanic gases emitted during 2004-2005 were characterised by a molar SO<sub>2</sub>/HCl of 10-64, with a mean of 33; and a molar HF/HCl of 0-5, with a mean of 1.0 (from approximately 2500 measurements). The HF/HCl ratio was more variable than the SO<sub>2</sub>/HCl ratio, and the two correlate weakly. Variations in ratio took place over rapid timescales (seconds). Matrix glasses of Pele's tears erupted in 2006 have a mean S, Cl and F content of 67, 85 and 173??ppm respectively, but are associated with a large range in S/F. A model is developed that describes the open system degassing of halogens from parental magmas, using the glass data from this study, previously published results and parameterisation of sulphur degassing from previous work. The results illustrate that halogen degassing takes place at pressures of &lt; 1??MPa, equivalent to &lt; ~ 35??m in the conduit. Fluid-melt partition coefficients for Cl and F are low (&lt; 1.5); F only degasses appreciably at &lt; 0.1??MPa above atmospheric pressure, virtually at the top of the magma column. This model reproduces the volcanic gas data and other observations of volcanic activity well and is consistent with other studies of halogen degassing from basaltic magmas. The model suggests that variation in volcanic gas halogen ratios is caused by exsolution and gas-melt separation at low pressures in the conduit. There is no evidence that either diffusive fractionation or near-vent chemical reactions involving halogens is important in the system, although these processes cannot be ruled out. The fluxes of HCl and HF from K??lauea during 2004-5 were ~ 25 and 12??t/d respectively. ?? 2008 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.chemgeo.2008.09.022","issn":"00092541","usgsCitation":"Edmonds, M., Gerlach, T., and Herd, R.A., 2009, Halogen degassing during ascent and eruption of water-poor basaltic magma: Chemical Geology, v. 263, no. 1-4, p. 122-130, https://doi.org/10.1016/j.chemgeo.2008.09.022.","productDescription":"9 p.","startPage":"122","endPage":"130","numberOfPages":"9","ipdsId":"IP-012286","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":244746,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216850,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.chemgeo.2008.09.022"}],"volume":"263","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2f5ce4b0c8380cd5cd15","contributors":{"authors":[{"text":"Edmonds, M.","contributorId":43547,"corporation":false,"usgs":true,"family":"Edmonds","given":"M.","email":"","affiliations":[],"preferred":false,"id":444981,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gerlach, T.M.","contributorId":38713,"corporation":false,"usgs":true,"family":"Gerlach","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":444980,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Herd, Richard A.","contributorId":95663,"corporation":false,"usgs":true,"family":"Herd","given":"Richard","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":444982,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034265,"text":"70034265 - 2009 - Broadening our approaches to studying dispersal in raptors","interactions":[],"lastModifiedDate":"2012-03-12T17:21:45","indexId":"70034265","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2442,"text":"Journal of Raptor Research","active":true,"publicationSubtype":{"id":10}},"title":"Broadening our approaches to studying dispersal in raptors","docAbstract":"Dispersal is a behavioral process having consequences for individual fitness and population dynamics. Recent advances in technology have spawned new theoretical examinations and empirical studies of the dispersal process in birds, providing opportunities for examining how this information may be applied to studies of the dispersal process in raptors. Many raptors are the focus of conservation efforts; thus, reliable data on all aspects of a species' population dynamics, including dispersal distances, movement rates, and mortality rates of dispersers, are required for population viability analyses that are increasingly used to inform management. Here, we address emerging issues and novel approaches used in the study of avian dispersal, and provide suggestions to consider when developing and implementing studies of dispersal in raptors. Clarifying study objectives is essential for selection of an appropriate methodology and sample size needed to obtain accurate estimates of movement distances and rates. Identifying an appropriate study-area size will allow investigators to avoid underestimating population connectivity and important population parameters. Because nomadic individuals of some species use temporary settling areas or home ranges before breeding, identification of these areas is critical for conservation efforts focusing on habitats other than breeding sites. Study designs for investigating raptor dispersal also should include analysis of environmental and social factors influencing dispersal, to improve our understanding of condition-dependent dispersal strategies. Finally, we propose a terminology for use in describing the variety of movements associated with dispersal behavior in raptors, and we suggest this terminology could be used consistently to facilitate comparisons among studies. ?? 2009 The Raptor Research Foundation, Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Raptor Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3356/JRR-08-33.1","issn":"08921016","usgsCitation":"Morrison, J.L., and Wood, P., 2009, Broadening our approaches to studying dispersal in raptors: Journal of Raptor Research, v. 43, no. 2, p. 81-89, https://doi.org/10.3356/JRR-08-33.1.","startPage":"81","endPage":"89","numberOfPages":"9","costCenters":[],"links":[{"id":476211,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3356/jrr-08-33.1","text":"Publisher Index Page"},{"id":216881,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3356/JRR-08-33.1"},{"id":244779,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f288e4b0c8380cd4b225","contributors":{"authors":[{"text":"Morrison, J. L.","contributorId":28012,"corporation":false,"usgs":true,"family":"Morrison","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":444983,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wood, P.B. 0000-0002-8575-1705","orcid":"https://orcid.org/0000-0002-8575-1705","contributorId":103992,"corporation":false,"usgs":true,"family":"Wood","given":"P.B.","affiliations":[],"preferred":false,"id":444984,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70035941,"text":"70035941 - 2009 - Numerical study of tsunami generated by multiple submarine slope failures in Resurrection Bay, Alaska, during the M<sub>W</sub> 9.2 1964 earthquake","interactions":[],"lastModifiedDate":"2018-05-20T16:57:18","indexId":"70035941","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Numerical study of tsunami generated by multiple submarine slope failures in Resurrection Bay, Alaska, during the M<sub>W</sub> 9.2 1964 earthquake","docAbstract":"We use a viscous slide model of Jiang and LeBlond (1994) coupled with nonlinear shallow water equations to study tsunami waves in Resurrection Bay, in south-central Alaska. The town of Seward, located at the head of Resurrection Bay, was hit hard by both tectonic and local landslide-generated tsunami waves during the M<sub>W</sub> 9.2 1964 earthquake with an epicenter located about 150 km northeast of Seward. Recent studies have estimated the total volume of underwater slide material that moved in Resurrection Bay during the earthquake to be about 211 million m<sup>3</sup>. Resurrection Bay is a glacial fjord with large tidal ranges and sediments accumulating on steep underwater slopes at a high rate. Also, it is located in a seismically active region above the Aleutian megathrust. All these factors make the town vulnerable to locally generated waves produced by underwater slope failures. Therefore it is crucial to assess the tsunami hazard related to local landslide-generated tsunamis in Resurrection Bay in order to conduct comprehensive tsunami inundation mapping at Seward. We use numerical modeling to recreate the landslides and tsunami waves of the 1964 earthquake to test the hypothesis that the local tsunami in Resurrection Bay has been produced by a number of different slope failures. We find that numerical results are in good agreement with the observational data, and the model could be employed to evaluate landslide tsunami hazard in Alaska fjords for the purposes of tsunami hazard mitigation. ?? Birkh??user Verlag, Basel 2009.","largerWorkTitle":"Pure and Applied Geophysics","language":"English","doi":"10.1007/s00024-004-0430-3","issn":"00334553","usgsCitation":"Suleimani, E., Hansen, R., and Haeussler, P.J., 2009, Numerical study of tsunami generated by multiple submarine slope failures in Resurrection Bay, Alaska, during the M<sub>W</sub> 9.2 1964 earthquake, <i>in</i> Pure and Applied Geophysics, v. 166, no. 1-2, p. 131-152, https://doi.org/10.1007/s00024-004-0430-3.","startPage":"131","endPage":"152","numberOfPages":"22","costCenters":[],"links":[{"id":243963,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216117,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00024-004-0430-3"}],"volume":"166","issue":"1-2","noUsgsAuthors":false,"publicationDate":"2009-02-06","publicationStatus":"PW","scienceBaseUri":"505a6933e4b0c8380cd73c01","contributors":{"authors":[{"text":"Suleimani, E.","contributorId":91713,"corporation":false,"usgs":true,"family":"Suleimani","given":"E.","affiliations":[],"preferred":false,"id":453233,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hansen, R.","contributorId":56370,"corporation":false,"usgs":true,"family":"Hansen","given":"R.","affiliations":[],"preferred":false,"id":453231,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haeussler, Peter J. 0000-0002-1503-6247 pheuslr@usgs.gov","orcid":"https://orcid.org/0000-0002-1503-6247","contributorId":503,"corporation":false,"usgs":true,"family":"Haeussler","given":"Peter","email":"pheuslr@usgs.gov","middleInitial":"J.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":453232,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034294,"text":"70034294 - 2009 - Using geometrical, textural, and contextual information of land parcels for classification of detailed urban land use","interactions":[],"lastModifiedDate":"2012-03-12T17:21:46","indexId":"70034294","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":797,"text":"Annals of the Association of American Geographers","active":true,"publicationSubtype":{"id":10}},"title":"Using geometrical, textural, and contextual information of land parcels for classification of detailed urban land use","docAbstract":"Detailed urban land use data are important to government officials, researchers, and businesspeople for a variety of purposes. This article presents an approach to classifying detailed urban land use based on geometrical, textural, and contextual information of land parcels. An area of 6 by 14 km in Austin, Texas, with land parcel boundaries delineated by the Travis Central Appraisal District of Travis County, Texas, is tested for the approach. We derive fifty parcel attributes from relevant geographic information system (GIS) and remote sensing data and use them to discriminate among nine urban land uses: single family, multifamily, commercial, office, industrial, civic, open space, transportation, and undeveloped. Half of the 33,025 parcels in the study area are used as training data for land use classification and the other half are used as testing data for accuracy assessment. The best result with a decision tree classification algorithm has an overall accuracy of 96 percent and a kappa coefficient of 0.78, and two naive, baseline models based on the majority rule and the spatial autocorrelation rule have overall accuracy of 89 percent and 79 percent, respectively. The algorithm is relatively good at classifying single-family, multifamily, commercial, open space, and undeveloped land uses and relatively poor at classifying office, industrial, civic, and transportation land uses. The most important attributes for land use classification are the geometrical attributes, particularly those related to building areas. Next are the contextual attributes, particularly those relevant to the spatial relationship between buildings, then the textural attributes, particularly the semivariance texture statistic from 0.61-m resolution images.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Annals of the Association of American Geographers","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/00045600802459028","issn":"00045608","usgsCitation":"Wu, S., Qiu, X., Usery, E., and Wang, L., 2009, Using geometrical, textural, and contextual information of land parcels for classification of detailed urban land use: Annals of the Association of American Geographers, v. 99, no. 1, p. 76-98, https://doi.org/10.1080/00045600802459028.","startPage":"76","endPage":"98","numberOfPages":"23","costCenters":[],"links":[{"id":216822,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/00045600802459028"},{"id":244717,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"99","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc055e4b08c986b32a078","contributors":{"authors":[{"text":"Wu, S.-S.","contributorId":51714,"corporation":false,"usgs":true,"family":"Wu","given":"S.-S.","email":"","affiliations":[],"preferred":false,"id":445120,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Qiu, X.","contributorId":73422,"corporation":false,"usgs":true,"family":"Qiu","given":"X.","email":"","affiliations":[],"preferred":false,"id":445121,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Usery, E.L.","contributorId":45355,"corporation":false,"usgs":true,"family":"Usery","given":"E.L.","email":"","affiliations":[],"preferred":false,"id":445119,"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":445122,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035938,"text":"70035938 - 2009 - Site characterization for urban seismic hazards in lower Manhattan, New York City, from microtremor array analysis","interactions":[],"lastModifiedDate":"2016-01-27T15:04:03","indexId":"70035938","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Site characterization for urban seismic hazards in lower Manhattan, New York City, from microtremor array analysis","docAbstract":"<p>We characterize the shear-wave velocity (Vs) of soil deposits in lower Manhattan at six sites using the SPAC and HVSR microtremor methods. The soil Vs ranges from 140 m/s to 300 m/s over bedrock. We believe that bedrock depth is constrained to &plusmn;15% with these microtremor data, but an accurate quantification of bedrock Vs is unattainable because of low spectral coherency at frequencies below 3 Hz. HVSR data corroborate the SPAC microtremor results at sites based on good alignment of theoretical Rayleigh ellipticity peaks, 1D SH amplifications, and peak HVSR. Resonant frequencies vary between 1.4 and 5.5 Hz between the sites from both observed HVSR and predicted 1D SH amplification. Shear-wave velocities to 30 m classify the sites as C, D, or E. This study demonstrates that given relatively shallow bedrock depth the SPAC method can work in extremely urbanized areas.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington","doi":"10.1029/2008GL036444","issn":"00948276","usgsCitation":"Stephenson, W.J., Hartzell, S., Frankel, A., Asten, M., Carver, D.L., and Kim, W., 2009, Site characterization for urban seismic hazards in lower Manhattan, New York City, from microtremor array analysis: Geophysical Research Letters, v. 36, no. 3, 5 p., https://doi.org/10.1029/2008GL036444.","productDescription":"5 p.","numberOfPages":"5","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":243930,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216088,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2008GL036444"}],"country":"United States","state":"New York","city":"New York","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -73.9712905883789,\n              40.80757278825516\n            ],\n            [\n              -73.93489837646484,\n              40.791979118109566\n            ],\n            [\n              -73.93867492675781,\n              40.78626052122175\n            ],\n            [\n              -73.9445114135742,\n              40.782881118849595\n            ],\n            [\n              -73.94245147705078,\n              40.774561857347244\n            ],\n            [\n              -73.9548110961914,\n              40.762341053140275\n            ],\n            [\n              -73.96785736083983,\n              40.74829735476797\n            ],\n            [\n              -73.97438049316406,\n              40.73737242735457\n            ],\n            [\n              -73.97197723388672,\n              40.72800677563629\n            ],\n            [\n              -73.97369384765625,\n              40.7189000170401\n            ],\n            [\n              -73.9767837524414,\n              40.71109323223401\n            ],\n            [\n              -73.98948669433594,\n              40.70823051511181\n            ],\n            [\n              -73.99978637695312,\n              40.70692923937242\n            ],\n            [\n              -74.01008605957031,\n              40.701463603604594\n            ],\n            [\n              -74.01660919189453,\n              40.70094304347228\n            ],\n            [\n              -74.01969909667969,\n              40.706148461723764\n            ],\n            [\n              -74.01626586914062,\n              40.718379593199494\n            ],\n            [\n              -74.01317596435547,\n              40.718379593199494\n            ],\n            [\n              -74.01248931884766,\n              40.72800677563629\n            ],\n            [\n              -74.01042938232422,\n              40.74205475883487\n            ],\n            [\n              -74.00802612304688,\n              40.75245875985305\n            ],\n            [\n              -73.9990997314453,\n              40.76520144280567\n            ],\n            [\n              -73.99223327636719,\n              40.776901754952355\n            ],\n            [\n              -73.98262023925781,\n              40.78834006798032\n            ],\n            [\n              -73.97712707519531,\n              40.79847692585981\n            ],\n            [\n              -73.9712905883789,\n              40.80757278825516\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"36","issue":"3","noUsgsAuthors":false,"publicationDate":"2009-02-05","publicationStatus":"PW","scienceBaseUri":"505b90efe4b08c986b3196eb","contributors":{"authors":[{"text":"Stephenson, W. J.","contributorId":87982,"corporation":false,"usgs":true,"family":"Stephenson","given":"W.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":453223,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hartzell, S.","contributorId":12603,"corporation":false,"usgs":true,"family":"Hartzell","given":"S.","email":"","affiliations":[],"preferred":false,"id":453218,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Frankel, A.D.","contributorId":53828,"corporation":false,"usgs":true,"family":"Frankel","given":"A.D.","email":"","affiliations":[],"preferred":false,"id":453220,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Asten, M.","contributorId":55235,"corporation":false,"usgs":true,"family":"Asten","given":"M.","email":"","affiliations":[],"preferred":false,"id":453221,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Carver, D. L.","contributorId":55808,"corporation":false,"usgs":true,"family":"Carver","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":453222,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kim, W.Y.","contributorId":43593,"corporation":false,"usgs":true,"family":"Kim","given":"W.Y.","email":"","affiliations":[],"preferred":false,"id":453219,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70035937,"text":"70035937 - 2009 - Movements of brown bullheads in Presque Isle Bay, Lake Erie, Pennsylvania","interactions":[],"lastModifiedDate":"2013-02-26T13:39:54","indexId":"70035937","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Movements of brown bullheads in Presque Isle Bay, Lake Erie, Pennsylvania","docAbstract":"Presque Isle Bay, Lake Erie, was listed as an Area of Concern (AOC) by the International Joint Commission in part because of the high incidence of external tumor in brown bullheads. Verifying the source of the possible contaminant exposure is critical to addressing the AOC designation. We used telemetry tracking (n = 49 fish) to test the hypothesis that adult bullheads captured within the bay during spawning season do not exit the bay during the post-spawning summer and fall months. We analyzed genetic variation at 15 microsatellite loci for 112 adult fish from 5 locations, 4 inside the bay and 1 outside, in order to test for possible differences. Data from fixed-station receivers suggested fish did not leave Presque Isle Bay during the study period. Predicted locations outside Presque Isle Bay were only 0.1% of all predicted locations and were below the 0.2% error rate based on known manual relocations. However, there was evidence for movement within Presque Isle Bay. Most movement was between Misery Bay or Lagoons and the open bay area. Whereas telemetry results showed tendency for adult site fidelity, genetic results showed no differences among locations, indicating that there is a single panmictic population. Our telemetry data suggest that brown bullheads are likely a useful indicator species for environmental conditions in Presque Isle Bay, since adults likely are retained in the system.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Great Lakes Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jglr.2009.08.007","issn":"03801330","usgsCitation":"Millard, M.J., Smith, D., Obert, E., Grazio, J., Bartron, M., Wellington, C., Grise, S., Rafferty, S., Wellington, R., and Julian, S., 2009, Movements of brown bullheads in Presque Isle Bay, Lake Erie, Pennsylvania: Journal of Great Lakes Research, v. 35, no. 4, p. 613-619, https://doi.org/10.1016/j.jglr.2009.08.007.","startPage":"613","endPage":"619","numberOfPages":"7","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":216061,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jglr.2009.08.007"},{"id":243902,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5f61e4b0c8380cd70f04","contributors":{"authors":[{"text":"Millard, M. J.","contributorId":40555,"corporation":false,"usgs":false,"family":"Millard","given":"M.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":453209,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, D. R. 0000-0001-6074-9257","orcid":"https://orcid.org/0000-0001-6074-9257","contributorId":44108,"corporation":false,"usgs":true,"family":"Smith","given":"D. R.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":453210,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Obert, E.","contributorId":108337,"corporation":false,"usgs":true,"family":"Obert","given":"E.","affiliations":[],"preferred":false,"id":453217,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Grazio, J.","contributorId":94130,"corporation":false,"usgs":true,"family":"Grazio","given":"J.","affiliations":[],"preferred":false,"id":453216,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bartron, M.L.","contributorId":72224,"corporation":false,"usgs":true,"family":"Bartron","given":"M.L.","affiliations":[],"preferred":false,"id":453213,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wellington, C.","contributorId":51570,"corporation":false,"usgs":true,"family":"Wellington","given":"C.","email":"","affiliations":[],"preferred":false,"id":453211,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Grise, S.","contributorId":81712,"corporation":false,"usgs":true,"family":"Grise","given":"S.","email":"","affiliations":[],"preferred":false,"id":453214,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Rafferty, S.","contributorId":89373,"corporation":false,"usgs":true,"family":"Rafferty","given":"S.","email":"","affiliations":[],"preferred":false,"id":453215,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Wellington, R.","contributorId":21004,"corporation":false,"usgs":true,"family":"Wellington","given":"R.","email":"","affiliations":[],"preferred":false,"id":453208,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Julian, S.","contributorId":70619,"corporation":false,"usgs":true,"family":"Julian","given":"S.","email":"","affiliations":[],"preferred":false,"id":453212,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70033999,"text":"70033999 - 2009 - Water balance dynamics in the Nile Basin","interactions":[],"lastModifiedDate":"2017-04-05T11:19:47","indexId":"70033999","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Water balance dynamics in the Nile Basin","docAbstract":"<p><span>Understanding the temporal and spatial dynamics of key water balance components of the Nile River will provide important information for the management of its water resources. This study used satellite-derived rainfall and other key weather variables derived from the Global Data Assimilation System to estimate and map the distribution of rainfall, actual evapotranspiration (ETa), and runoff. Daily water balance components were modelled in a grid-cell environment at 0·1 degree (∼10 km) spatial resolution for 7 years from 2001 through 2007. Annual maps of the key water balance components and derived variables such as runoff and ETa as a percent of rainfall were produced. Generally, the spatial patterns of rainfall and ETa indicate high values in the upstream watersheds (Uganda, southern Sudan, and southwestern Ethiopia) and low values in the downstream watersheds. However, runoff as a percent of rainfall is much higher in the Ethiopian highlands around the Blue Nile subwatershed. The analysis also showed the possible impact of land degradation in the Ethiopian highlands in reducing ETa magnitudes despite the availability of sufficient rainfall. Although the model estimates require field validation for the different subwatersheds, the runoff volume estimate for the Blue Nile subwatershed is within 7·0% of a figure reported from an earlier study. Further research is required for a thorough validation of the results and their integration with ecohydrologic models for better management of water and land resources in the various Nile Basin ecosystems.</span></p>","language":"English","publisher":"Wiley","doi":"10.1002/hyp.7364","issn":"08856087","usgsCitation":"Senay, G.B., Asante, K., and Artan, G.A., 2009, Water balance dynamics in the Nile Basin: Hydrological Processes, v. 23, no. 26, p. 3675-3681, https://doi.org/10.1002/hyp.7364.","productDescription":"7 p.","startPage":"3675","endPage":"3681","numberOfPages":"7","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":244730,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216834,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.7364"}],"volume":"23","issue":"26","noUsgsAuthors":false,"publicationDate":"2009-08-26","publicationStatus":"PW","scienceBaseUri":"505bc7c2e4b08c986b32c5f2","contributors":{"authors":[{"text":"Senay, Gabriel B. 0000-0002-8810-8539 senay@usgs.gov","orcid":"https://orcid.org/0000-0002-8810-8539","contributorId":3114,"corporation":false,"usgs":true,"family":"Senay","given":"Gabriel","email":"senay@usgs.gov","middleInitial":"B.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":443581,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Asante, Kwabena 0000-0001-5408-1852","orcid":"https://orcid.org/0000-0001-5408-1852","contributorId":65948,"corporation":false,"usgs":true,"family":"Asante","given":"Kwabena","affiliations":[],"preferred":false,"id":443583,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Artan, Guleid A. 0000-0001-8409-6182 gartan@usgs.gov","orcid":"https://orcid.org/0000-0001-8409-6182","contributorId":2938,"corporation":false,"usgs":true,"family":"Artan","given":"Guleid","email":"gartan@usgs.gov","middleInitial":"A.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":443582,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035935,"text":"70035935 - 2009 - Potential habitat distribution for the freshwater diatom Didymosphenia geminata in the continental US","interactions":[],"lastModifiedDate":"2012-03-12T17:21:52","indexId":"70035935","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1701,"text":"Frontiers in Ecology and the Environment","active":true,"publicationSubtype":{"id":10}},"title":"Potential habitat distribution for the freshwater diatom Didymosphenia geminata in the continental US","docAbstract":"The diatom Didymosphenia geminata is a single-celled alga found in lakes, streams, and rivers. Nuisance blooms of D geminata affect the diversity, abundance, and productivity of other aquatic organisms. Because D geminata can be transported by humans on waders and other gear, accurate spatial prediction of habitat suitability is urgently needed for early detection and rapid response, as well as for evaluation of monitoring and control programs. We compared four modeling methods to predict D geminata's habitat distribution; two methods use presence-absence data (logistic regression and classification and regression tree [CART]), and two involve presence data (maximum entropy model [Maxent] and genetic algorithm for rule-set production [GARP]). Using these methods, we evaluated spatially explicit, bioclimatic and environmental variables as predictors of diatom distribution. The Maxent model provided the most accurate predictions, followed by logistic regression, CART, and GARP. The most suitable habitats were predicted to occur in the western US, in relatively cool sites, and at high elevations with a high base-flow index. The results provide insights into the factors that affect the distribution of D geminata and a spatial basis for the prediction of nuisance blooms. ?? The Ecological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Frontiers in Ecology and the Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1890/080054","issn":"15409295","usgsCitation":"Kumar, S., Spaulding, S., Stohlgren, T., Hermann, K., Schmidt, T., and Bahls, L., 2009, Potential habitat distribution for the freshwater diatom Didymosphenia geminata in the continental US: Frontiers in Ecology and the Environment, v. 7, no. 8, p. 415-420, https://doi.org/10.1890/080054.","startPage":"415","endPage":"420","numberOfPages":"6","costCenters":[],"links":[{"id":216501,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1890/080054"},{"id":244376,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"8","noUsgsAuthors":false,"publicationDate":"2008-11-12","publicationStatus":"PW","scienceBaseUri":"505a7f29e4b0c8380cd7a96e","contributors":{"authors":[{"text":"Kumar, S.","contributorId":89843,"corporation":false,"usgs":true,"family":"Kumar","given":"S.","affiliations":[],"preferred":false,"id":453206,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Spaulding, S. A. 0000-0002-9787-7743","orcid":"https://orcid.org/0000-0002-9787-7743","contributorId":74390,"corporation":false,"usgs":true,"family":"Spaulding","given":"S. A.","affiliations":[],"preferred":false,"id":453205,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stohlgren, T.J.","contributorId":7217,"corporation":false,"usgs":true,"family":"Stohlgren","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":453201,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hermann, K.A.","contributorId":49207,"corporation":false,"usgs":true,"family":"Hermann","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":453203,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schmidt, T.S.","contributorId":65175,"corporation":false,"usgs":true,"family":"Schmidt","given":"T.S.","email":"","affiliations":[],"preferred":false,"id":453204,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bahls, L.L.","contributorId":36208,"corporation":false,"usgs":true,"family":"Bahls","given":"L.L.","email":"","affiliations":[],"preferred":false,"id":453202,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70035996,"text":"70035996 - 2009 - Incorporating both physical and kinetic limitations in quantifying dissolved oxygen flux to aquatic sediments","interactions":[],"lastModifiedDate":"2012-03-12T17:21:51","indexId":"70035996","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2255,"text":"Journal of Environmental Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Incorporating both physical and kinetic limitations in quantifying dissolved oxygen flux to aquatic sediments","docAbstract":"Traditionally, dissolved oxygen (DO) fluxes have been calculated using the thin-film theory with DO microstructure data in systems characterized by fine sediments and low velocities. However, recent experimental evidence of fluctuating DO concentrations near the sediment-water interface suggests that turbulence and coherent motions control the mass transfer, and the surface renewal theory gives a more mechanistic model for quantifying fluxes. Both models involve quantifying the mass transfer coefficient (k) and the relevant concentration difference (??<sub>C</sub>). This study compared several empirical models for quantifying k based on both thin-film and surface renewal theories, as well as presents a new method for quantifying ??<sub>C</sub> (dynamic approach) that is consistent with the observed DO concentration fluctuations near the interface. Data were used from a series of flume experiments that includes both physical and kinetic uptake limitations of the flux. Results indicated that methods for quantifying k and ??<sub>C</sub> using the surface renewal theory better estimated the DO flux across a range of fluid-flow conditions. ?? 2009 ASCE.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Environmental Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1061/(ASCE)EE.1943-7870.0000093","issn":"07339372","usgsCitation":"O’Connor, B., Hondzo, M., and Harvey, J., 2009, Incorporating both physical and kinetic limitations in quantifying dissolved oxygen flux to aquatic sediments: Journal of Environmental Engineering, v. 135, no. 12, p. 1304-1314, https://doi.org/10.1061/(ASCE)EE.1943-7870.0000093.","startPage":"1304","endPage":"1314","numberOfPages":"11","costCenters":[],"links":[{"id":216094,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/(ASCE)EE.1943-7870.0000093"},{"id":243936,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"135","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a39e7e4b0c8380cd61a98","contributors":{"authors":[{"text":"O’Connor, B.L.","contributorId":24977,"corporation":false,"usgs":true,"family":"O’Connor","given":"B.L.","email":"","affiliations":[],"preferred":false,"id":453528,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hondzo, Miki","contributorId":11816,"corporation":false,"usgs":false,"family":"Hondzo","given":"Miki","email":"","affiliations":[{"id":12693,"text":"Department of Civil, Environmental, and Geo- Engineering and St. Anthony Falls Laboratory, Minneapolis, MN","active":true,"usgs":false}],"preferred":false,"id":453527,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harvey, J. W. 0000-0002-2654-9873","orcid":"https://orcid.org/0000-0002-2654-9873","contributorId":39725,"corporation":false,"usgs":true,"family":"Harvey","given":"J. W.","affiliations":[],"preferred":false,"id":453529,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034491,"text":"70034491 - 2009 - Estimation of regional-scale groundwater flow properties in the Bengal Basin of India and Bangladesh","interactions":[],"lastModifiedDate":"2012-03-12T17:21:42","indexId":"70034491","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Estimation of regional-scale groundwater flow properties in the Bengal Basin of India and Bangladesh","docAbstract":"Quantitative evaluation of management strategies for long-term supply of safe groundwater for drinking from the Bengal Basin aquifer (India and Bangladesh) requires estimation of the large-scale hydrogeologic properties that control flow. The Basin consists of a stratified, heterogeneous sequence of sediments with aquitards that may separate aquifers locally, but evidence does not support existence of regional confining units. Considered at a large scale, the Basin may be aptly described as a single aquifer with higher horizontal than vertical hydraulic conductivity. Though data are sparse, estimation of regional-scale aquifer properties is possible from three existing data types: hydraulic heads, 14C concentrations, and driller logs. Estimation is carried out with inverse groundwater modeling using measured heads, by model calibration using estimated water ages based on 14C, and by statistical analysis of driller logs. Similar estimates of hydraulic conductivities result from all three data types; a resulting typical value of vertical anisotropy (ratio of horizontal to vertical conductivity) is 104. The vertical anisotropy estimate is supported by simulation of flow through geostatistical fields consistent with driller log data. The high estimated value of vertical anisotropy in hydraulic conductivity indicates that even disconnected aquitards, if numerous, can strongly control the equivalent hydraulic parameters of an aquifer system. ?? US Government 2009.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrogeology Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10040-009-0443-1","issn":"14312174","usgsCitation":"Michael, H., and Voss, C., 2009, Estimation of regional-scale groundwater flow properties in the Bengal Basin of India and Bangladesh: Hydrogeology Journal, v. 17, no. 6, p. 1329-1346, https://doi.org/10.1007/s10040-009-0443-1.","startPage":"1329","endPage":"1346","numberOfPages":"18","costCenters":[],"links":[{"id":216002,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10040-009-0443-1"},{"id":243841,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"6","noUsgsAuthors":false,"publicationDate":"2009-03-10","publicationStatus":"PW","scienceBaseUri":"505a0ba5e4b0c8380cd527f9","contributors":{"authors":[{"text":"Michael, H.A.","contributorId":98858,"corporation":false,"usgs":true,"family":"Michael","given":"H.A.","email":"","affiliations":[],"preferred":false,"id":446062,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Voss, C.I.","contributorId":79515,"corporation":false,"usgs":true,"family":"Voss","given":"C.I.","email":"","affiliations":[],"preferred":false,"id":446061,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70035383,"text":"70035383 - 2009 - Postimpact heat conduction and compaction-driven fluid flow in the Chesapeake Bay impact structure based on downhole vitrinite reflectance data, ICDP-USGS Eyreville deep core holes and Cape Charles test holes","interactions":[],"lastModifiedDate":"2012-03-12T17:21:53","indexId":"70035383","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Postimpact heat conduction and compaction-driven fluid flow in the Chesapeake Bay impact structure based on downhole vitrinite reflectance data, ICDP-USGS Eyreville deep core holes and Cape Charles test holes","docAbstract":"Vitrinite reflectance data from the International Continental Scientific Drilling Program (ICDP)-U.S. Geological Survey (USGS) Eyreville deep cores in the centralcrater moat of the Chesapeake Bay impact structure and the Cape Charles test holes on the central uplift show patterns of postimpact maximum-temperature distribution that result from a combination of conductive and advective heat flow. Within the crater-fill sediment-clast breccia sequence at Eyreville, an isoreflectance (-0.44% Ro) section (525-1096 m depth) is higher than modeled background coastal-plain maturity and shows a pattern typical of advective fluid flow. Below an intervening granite slab, a short interval of sediment-clast breccia (1371-1397 m) shows a sharp increase in reflectance (0.47%-0.91% Ro) caused by conductive heat from the underlying suevite (1397-1474 m). Refl ectance data in the uppermost suevite range from 1.2% to 2.1% Ro. However, heat conduction alone is not sufficient to affect the temperature of sediments more than 100 m above the suevite. Thermal modeling of the Eyreville suevite as a 390 ??C cooling sill-like hot rock layer supplemented by compaction- driven vertical fluid flow (0.046 m/a) of cooling suevitic fluids and deeper basement brines (120 ??C) upward through the sediment breccias closely reproduces the measured reflectance data. This scenario would also replace any marine water trapped in the crater fill with more saline brine, similar to that currently in the crater, and it would produce temperatures sufficient to kill microbes in sediment breccias within 450 m above the synimsuevite. A similar downhole maturity pattern is present in the sediment-clast breccia over the central uplift. High-reflectance (5%-9%) black shale and siltstone clasts in the suevite and sediment-clast breccia record a pre-impact (Paleozoic?) metamorphic event. Previously published maturity data in the annular trough indicate no thermal effect there from impact-related processes. ?? 2009 The Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Special Paper of the Geological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/2009.2458(38)","issn":"00721077","usgsCitation":"Malinconico, M., Sanford, W., and Wright, H.W., 2009, Postimpact heat conduction and compaction-driven fluid flow in the Chesapeake Bay impact structure based on downhole vitrinite reflectance data, ICDP-USGS Eyreville deep core holes and Cape Charles test holes: Special Paper of the Geological Society of America, no. 458, p. 905-930, https://doi.org/10.1130/2009.2458(38).","startPage":"905","endPage":"930","numberOfPages":"26","costCenters":[],"links":[{"id":215496,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/2009.2458(38)"},{"id":243306,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"458","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7e92e4b0c8380cd7a604","contributors":{"authors":[{"text":"Malinconico, M.L.","contributorId":10689,"corporation":false,"usgs":true,"family":"Malinconico","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":450398,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sanford, W. E. 0000-0002-6624-0280","orcid":"https://orcid.org/0000-0002-6624-0280","contributorId":102112,"corporation":false,"usgs":true,"family":"Sanford","given":"W. E.","affiliations":[],"preferred":false,"id":450400,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wright, Horton W.J.J. Jr.","contributorId":87428,"corporation":false,"usgs":true,"family":"Wright","given":"Horton","suffix":"Jr.","email":"","middleInitial":"W.J.J.","affiliations":[],"preferred":false,"id":450399,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70179749,"text":"70179749 - 2009 - High-frequency in situ optical measurements during a storm event: Assessing relationships between dissolved organic matter, sediment concentrations, and hydrologic processes","interactions":[],"lastModifiedDate":"2017-04-25T16:40:38","indexId":"70179749","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2308,"text":"Journal of Geological Research","active":true,"publicationSubtype":{"id":10}},"title":"High-frequency in situ optical measurements during a storm event: Assessing relationships between dissolved organic matter, sediment concentrations, and hydrologic processes","docAbstract":"<p><span>Dissolved organic matter (DOM) dynamics during storm events has received considerable attention in forested watersheds, but the extent to which storms impart rapid changes in DOM concentration and composition in highly disturbed agricultural watersheds remains poorly understood. In this study, we used identical in situ optical sensors for DOM fluorescence (FDOM) with and without filtration to continuously evaluate surface water DOM dynamics in a 415 km</span><sup>2</sup><span>agricultural watershed over a 4 week period containing a short-duration rainfall event. Peak turbidity preceded peak discharge by 4 h and increased by over 2 orders of magnitude, while the peak filtered FDOM lagged behind peak turbidity by 15 h. FDOM values reported using the filtered in situ fluorometer increased nearly fourfold and were highly correlated with dissolved organic carbon (DOC) concentrations (r</span><sup>2</sup><span> = 0.97), providing a highly resolved proxy for DOC throughout the study period. Discrete optical properties including specific UV absorbance (SUVA</span><sub>254</sub><span>), spectral slope (S</span><sub>290–350</sub><span>), and fluorescence index (FI) were also strongly correlated with in situ FDOM and indicate a shift toward aromatic, high molecular weight DOM from terrestrially derived sources during the storm. The lag of the peak in FDOM behind peak discharge presumably reflects the draining of watershed soils from natural and agricultural landscapes. Field and experimental evidence showed that unfiltered FDOM measurements underestimated filtered FDOM concentrations by up to ∼60% at particle concentrations typical of many riverine systems during hydrologic events. Together, laboratory and in situ data provide insights into the timing and magnitude of changes in DOM quantity and quality during storm events in an agricultural watershed, and indicate the need for sample filtration in systems with moderate to high suspended sediment loads.</span></p>","language":"English","publisher":"AGU Publications","doi":"10.1029/2009JG000989","usgsCitation":"Saraceno, J.F., Pellerin, B.A., Downing, B.D., Boss, E., Bachand, P., and Bergamaschi, B., 2009, High-frequency in situ optical measurements during a storm event: Assessing relationships between dissolved organic matter, sediment concentrations, and hydrologic processes: Journal of Geological Research, v. 114, no. G4, Article G00F09; 11 p., https://doi.org/10.1029/2009JG000989.","productDescription":"Article G00F09; 11 p.","ipdsId":"IP-012904","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":476419,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2009jg000989","text":"Publisher Index Page"},{"id":333240,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"114","issue":"G4","noUsgsAuthors":false,"publicationDate":"2009-12-29","publicationStatus":"PW","scienceBaseUri":"587f3db9e4b0d96de256455d","contributors":{"authors":[{"text":"Saraceno, John Franco 0000-0003-0064-1820 saraceno@usgs.gov","orcid":"https://orcid.org/0000-0003-0064-1820","contributorId":2328,"corporation":false,"usgs":true,"family":"Saraceno","given":"John","email":"saraceno@usgs.gov","middleInitial":"Franco","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":658523,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pellerin, Brian A. bpeller@usgs.gov","contributorId":1451,"corporation":false,"usgs":true,"family":"Pellerin","given":"Brian","email":"bpeller@usgs.gov","middleInitial":"A.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":658524,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Downing, Bryan D. 0000-0002-2007-5304 bdowning@usgs.gov","orcid":"https://orcid.org/0000-0002-2007-5304","contributorId":1449,"corporation":false,"usgs":true,"family":"Downing","given":"Bryan","email":"bdowning@usgs.gov","middleInitial":"D.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":658525,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Boss, Emmanuel","contributorId":10143,"corporation":false,"usgs":true,"family":"Boss","given":"Emmanuel","affiliations":[],"preferred":false,"id":658526,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bachand, Philip A. M.","contributorId":139733,"corporation":false,"usgs":false,"family":"Bachand","given":"Philip A. M.","affiliations":[{"id":12895,"text":"Bachand & Associates, Davis, CA, 95616, USA","active":true,"usgs":false}],"preferred":false,"id":658527,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bergamaschi, Brian A. 0000-0002-9610-5581 bbergama@usgs.gov","orcid":"https://orcid.org/0000-0002-9610-5581","contributorId":1448,"corporation":false,"usgs":true,"family":"Bergamaschi","given":"Brian A.","email":"bbergama@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":658528,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70035373,"text":"70035373 - 2009 - Reproduction and microhabitat selection in a sharply declining Northern Bobwhite population","interactions":[],"lastModifiedDate":"2012-03-12T17:21:55","indexId":"70035373","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3784,"text":"Wilson Journal of Ornithology","active":true,"publicationSubtype":{"id":10}},"title":"Reproduction and microhabitat selection in a sharply declining Northern Bobwhite population","docAbstract":"Northern Bobwhite (Colinus virginianus) populations have been declining throughout their range, but some of the sharpest declines have been documented in the Mid-Atlantic states. We conducted a 2 year (2006-2007) breeding season (1 May-30 Sep) telemetry study in southern New Jersey to collect baseline data on Northern Bobwhite reproductive rates, and nest and brood microhabitat selection. We located 23 Northern Bobwhite nests, of which 21 were usable for survival analyses. Incubation-period nest survival rate was 0.454 ?? 0.010 (95 CI =0.2800.727). Mean clutch size was 14.2 ?? 0.58 (range 10-19, n = 20) and hatching success was 96.1 ?? 2.0 (range 86-100%, n = 10). The estimated probability that an individual that entered the breeding season would initiate incubation of ???1 nest was 0.687 for females and 0.202 for males. Nest microhabitat selection was positively related to visual obstruction and percentage of litter. Brood microhabitat selection was positively related to visual obstruction, vegetation height, and percentage of forbs but negatively related to percentage of cool season grass and litter. Fecundity metrics for Northern Bobwhites in southern New Jersey appear similar to those reported elsewhere in the species' range. Conservation efforts to increase Northern Bobwhite reproductive success in southern New Jersey should focus on increasing the quantity of available breeding habitat. ?? 2009 by the Wilson Ornithological Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wilson Journal of Ornithology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1676/09-040.1","issn":"15594491","usgsCitation":"Collins, B., Williams, C., and Castelli, P.M., 2009, Reproduction and microhabitat selection in a sharply declining Northern Bobwhite population: Wilson Journal of Ornithology, v. 121, no. 4, p. 688-695, https://doi.org/10.1676/09-040.1.","startPage":"688","endPage":"695","numberOfPages":"8","costCenters":[],"links":[{"id":215314,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1676/09-040.1"},{"id":243109,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"121","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aa893e4b0c8380cd859a6","contributors":{"authors":[{"text":"Collins, B.M.","contributorId":33925,"corporation":false,"usgs":true,"family":"Collins","given":"B.M.","email":"","affiliations":[],"preferred":false,"id":450372,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, C.K.","contributorId":8301,"corporation":false,"usgs":true,"family":"Williams","given":"C.K.","email":"","affiliations":[],"preferred":false,"id":450371,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Castelli, Paul M.","contributorId":107931,"corporation":false,"usgs":true,"family":"Castelli","given":"Paul","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":450373,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70033924,"text":"70033924 - 2009 - Isomer-specific determination of 4-nonylphenols using comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry","interactions":[],"lastModifiedDate":"2018-10-12T10:26:17","indexId":"70033924","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Isomer-specific determination of 4-nonylphenols using comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry","docAbstract":"<div class=\"hlFld-Abstract\"><div id=\"abstractBox\"><p class=\"articleBody_abstractText\">Technical nonylphenol (tNP), used for industrial production of nonylphenol polyethoxylate surfactants, is a complex mixture of C<sub>3−10</sub>-phenols. The major components, 4-nonylphenols, are weak endocrine disruptors whose estrogenicities vary according to the structure of the branched nonyl group. Thus, accurate risk assessment requires isomer-specific determination of 4-NPs. Comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry (GC × GC/ToFMS) was used to characterize tNP samples obtained from seven commercial suppliers. Under optimal chromatographic conditions, 153−204 alkylphenol peaks, 59−66 of which were identified as 4-NPs, were detected. The 4-NPs comprised ∼86−94% of tNP, with 2-NPs and decylphenols making up ∼2−9% and ∼2−5%, respectively. The tNP products were analyzed for eight synthetic 4-NP isomers, and results were compared with published data based on GC/MS analysis. Significant differences were found among the products and between two samples from a single supplier. The enhanced resolution of GC × GC coupled with fast mass spectral data acquisition by ToFMS facilitated identification of all major 4-NP isomers and a number of previously unrecognized components. Analysis of tNP altered by the bacterium,<span>&nbsp;</span><i>Sphingobium xenophagum</i><span>&nbsp;</span>Bayram, revealed several persistent 4-NPs whose structures and estrogenicities are presently unknown. The potential of this technology for isomer-specific determination of 4-NP isomers in environmental matrices is demonstrated using samples of wastewater-contaminated groundwater and municipal wastewater.</p></div></div><div class=\"hlFld-Fulltext\"><br data-mce-bogus=\"1\"></div>","language":"English","publisher":"ACS","doi":"10.1021/es902622r","issn":"0013936X","usgsCitation":"Eganhouse, R., Pontolillo, J., Gaines, R., Frysinger, G., Gabriel, F., Kohler, H., Giger, W., and Barber, L.B., 2009, Isomer-specific determination of 4-nonylphenols using comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry: Environmental Science & Technology, v. 43, no. 24, p. 9306-9313, https://doi.org/10.1021/es902622r.","productDescription":"8 p.","startPage":"9306","endPage":"9313","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":241941,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214241,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es902622r"}],"volume":"43","issue":"24","noUsgsAuthors":false,"publicationDate":"2009-11-19","publicationStatus":"PW","scienceBaseUri":"505a3f59e4b0c8380cd64478","contributors":{"authors":[{"text":"Eganhouse, R.P.","contributorId":67555,"corporation":false,"usgs":true,"family":"Eganhouse","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":443207,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pontolillo, J.","contributorId":43376,"corporation":false,"usgs":true,"family":"Pontolillo","given":"J.","affiliations":[],"preferred":false,"id":443203,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gaines, R.B.","contributorId":44748,"corporation":false,"usgs":true,"family":"Gaines","given":"R.B.","email":"","affiliations":[],"preferred":false,"id":443204,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Frysinger, G.S.","contributorId":22979,"corporation":false,"usgs":true,"family":"Frysinger","given":"G.S.","email":"","affiliations":[],"preferred":false,"id":443200,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gabriel, F.L.P.","contributorId":30465,"corporation":false,"usgs":true,"family":"Gabriel","given":"F.L.P.","email":"","affiliations":[],"preferred":false,"id":443201,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kohler, H.-P.E.","contributorId":50365,"corporation":false,"usgs":true,"family":"Kohler","given":"H.-P.E.","email":"","affiliations":[],"preferred":false,"id":443205,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Giger, W.","contributorId":38714,"corporation":false,"usgs":true,"family":"Giger","given":"W.","email":"","affiliations":[],"preferred":false,"id":443202,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Barber, L. B.","contributorId":64602,"corporation":false,"usgs":true,"family":"Barber","given":"L.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":443206,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70035478,"text":"70035478 - 2009 - Rapid middle Miocene collapse of the Mesozoic orogenic plateau in north-central Nevada","interactions":[],"lastModifiedDate":"2014-01-15T08:45:29","indexId":"70035478","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2020,"text":"International Geology Review","active":true,"publicationSubtype":{"id":10}},"title":"Rapid middle Miocene collapse of the Mesozoic orogenic plateau in north-central Nevada","docAbstract":"The modern Sierra Nevada and Great Basin were likely the site of a high-elevation orogenic plateau well into Cenozoic time, supported by crust thickened during Mesozoic shortening. Although crustal thickening at this scale can lead to extension, the relationship between Mesozoic shortening and subsequent formation of the Basin and Range is difficult to unravel because it is unclear which of the many documented or interpreted extensional episodes was the most significant for net widening and crustal thinning. To address this problem, we integrate geologic and geochronologic data that bear on the timing and magnitude of Cenozoic extension along an ???200km east-west transect south of Winnemucca, Battle Mountain, and Elko, Nevada. Pre-Cenozoic rocks in this region record east-west Palaeozoic and Mesozoic compression that continued into the Cretaceous. Little to no tectonism and no deposition followed until intense magmatism began in the Eocene. Eocene and Oligocene ash-flow tuffs flowed as much as 200km down palaeovalleys cut as deeply as 1.5km into underlying Palaeozoic and Mesozoic rocks in a low-relief landscape. Eocene sedimentation was otherwise limited to shallow lacustrine basins in the Elko area; extensive, thick clastic deposits are absent. Minor surface extension related to magmatism locally accompanied intense Eocene magmatism, but external drainage and little or no surface deformation apparently persisted regionally until about 16-17Ma. Major upper crustal extension began across the region ca. 16-17Ma, as determined by cross-cutting relationships, low-temperature thermochronology, and widespread deposition of clastic basin fill. Middle Miocene extension was partitioned into high-strain (50-100%) domains separated by largely unextended crustal blocks, and ended by 10-12Ma. Bimodal volcanic rocks that erupted during middle Miocene extension are present across most of the study area, but are volumetrically minor outside the northern Nevada rift. The modern physiographic basins and ranges formed during a distinctly different episode of extension that began after about 10Ma and has continued to the present. Late Miocene and younger faulting is characterized by widely spaced, high-angle normal faults that cut both older extended and unextended domains. Major widening of the Basin and Range at this latitude thus took place during a relatively brief interval in the middle Miocene, and the lack of major shortening west of the Sierra Nevada at this time suggests that the change in the plate margin from microplate subduction to lengthy transtensional strike-slip played an important role in allowing extension to occur when it did, as rapidly as it did. The onset of extension ca. 16-17Ma was coeval with both Columbia River flood-basalt volcanism and the hypothesized final delamination of the shallow Farallon slab that lay beneath the western USA in the early Tertiary. However, it is unclear if these events were necessary prerequisites for extension, simply coincidental, or themselves consequences of rapid extension and/or reorganization of the plate boundary.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Geology Review","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/00206810903056731","issn":"00206814","usgsCitation":"Colgan, J.P., and Henry, C., 2009, Rapid middle Miocene collapse of the Mesozoic orogenic plateau in north-central Nevada: International Geology Review, v. 51, no. 9-11, p. 920-961, https://doi.org/10.1080/00206810903056731.","startPage":"920","endPage":"961","numberOfPages":"42","costCenters":[],"links":[{"id":215200,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/00206810903056731"},{"id":242984,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"9-11","noUsgsAuthors":false,"publicationDate":"2009-08-12","publicationStatus":"PW","scienceBaseUri":"505a94f4e4b0c8380cd81706","contributors":{"authors":[{"text":"Colgan, Joseph P. 0000-0001-6671-1436 jcolgan@usgs.gov","orcid":"https://orcid.org/0000-0001-6671-1436","contributorId":1649,"corporation":false,"usgs":true,"family":"Colgan","given":"Joseph","email":"jcolgan@usgs.gov","middleInitial":"P.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":450837,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Henry, Christopher D.","contributorId":36556,"corporation":false,"usgs":true,"family":"Henry","given":"Christopher D.","affiliations":[],"preferred":false,"id":450838,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70034713,"text":"70034713 - 2009 - Ground and surface temperature variability for remote sensing of soil moisture in a heterogeneous landscape","interactions":[],"lastModifiedDate":"2012-03-12T17:21:40","indexId":"70034713","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Ground and surface temperature variability for remote sensing of soil moisture in a heterogeneous landscape","docAbstract":"At the Little River Watershed (LRW) heterogeneous landscape near Tifton Georgia US an in situ network of stations operated by the US Department of Agriculture-Agriculture Research Service-Southeast Watershed Research Lab (USDA-ARS-SEWRL) was established in 2003 for the long term study of climatic and soil biophysical processes. To develop an accurate interpolation of the in situ readings that can be used to produce distributed representations of soil moisture (SM) and energy balances at the landscape scale for remote sensing studies, we studied (1) the temporal and spatial variations of ground temperature (GT) and infra red temperature (IRT) within 30 by 30 m plots around selected network stations; (2) the relationship between the readings from the eight 30 by 30 m plots and the point reading of the network stations for the variables SM, GT and IRT; and (3) the spatial and temporal variation of GT and IRT within agriculture landuses: grass, orchard, peanuts, cotton and bare soil in the surrounding landscape. The results showed high correlations between the station readings and the adjacent 30 by 30 m plot average value for SM; high seasonal independent variation in the GT and IRT behavior among the eight 30 by 30 m plots; and site specific, in-field homogeneity in each 30 by 30 m plot. We found statistical differences in the GT and IRT between the different landuses as well as high correlations between GT and IRT regardless of the landuse. Greater standard deviations for IRT than for GT (in the range of 2-4) were found within the 30 by 30 m, suggesting that when a single point reading for this variable is selected for the validation of either remote sensing data or water-energy models, errors may occur. The results confirmed that in this landscape homogeneous 30 by 30 m plots can be used as landscape spatial units for soil moisture and ground temperature studies. Under this landscape conditions small plots can account for local expressions of environmental processes, decreasing the errors and uncertainties in remote sensing estimates caused by landscape heterogeneity.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2009.02.010","issn":"00221694","usgsCitation":"Giraldo, M., Bosch, D., Madden, M., Usery, L., and Finn, M., 2009, Ground and surface temperature variability for remote sensing of soil moisture in a heterogeneous landscape: Journal of Hydrology, v. 368, no. 1-4, p. 214-223, https://doi.org/10.1016/j.jhydrol.2009.02.010.","startPage":"214","endPage":"223","numberOfPages":"10","costCenters":[],"links":[{"id":243761,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215925,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2009.02.010"}],"volume":"368","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2a8be4b0c8380cd5b26f","contributors":{"authors":[{"text":"Giraldo, M.A.","contributorId":65591,"corporation":false,"usgs":true,"family":"Giraldo","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":447156,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bosch, D.","contributorId":83241,"corporation":false,"usgs":true,"family":"Bosch","given":"D.","email":"","affiliations":[],"preferred":false,"id":447158,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Madden, M.","contributorId":18068,"corporation":false,"usgs":true,"family":"Madden","given":"M.","email":"","affiliations":[],"preferred":false,"id":447154,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Usery, L.","contributorId":76442,"corporation":false,"usgs":true,"family":"Usery","given":"L.","email":"","affiliations":[],"preferred":false,"id":447157,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Finn, M.","contributorId":45539,"corporation":false,"usgs":true,"family":"Finn","given":"M.","email":"","affiliations":[],"preferred":false,"id":447155,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70034714,"text":"70034714 - 2009 - Monitoring the removal of phosphate from ground water discharging through a pond-bottom permeable reactive barrier","interactions":[],"lastModifiedDate":"2018-10-15T11:23:57","indexId":"70034714","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1864,"text":"Ground Water Monitoring and Remediation","active":true,"publicationSubtype":{"id":10}},"title":"Monitoring the removal of phosphate from ground water discharging through a pond-bottom permeable reactive barrier","docAbstract":"<p><span>Installation of a permeable reactive barrier to intercept a phosphate (PO</span><sub>4</sub><span>) plume where it discharges to a pond provided an opportunity to develop and test methods for monitoring the barrier’s performance in the shallow pond‐bottom sediments. The barrier is composed of zero‐valent‐iron mixed with the native sediments to a 0.6‐m depth over a 1100‐m</span><sup>2</sup><span>&nbsp;area. Permanent suction, diffusion, and seepage samplers were installed to monitor PO</span><sub>4</sub><span>&nbsp;and other chemical species along vertical transects through the barrier and horizontal transects below and near the top of the barrier. Analysis of pore water sampled at about 3‐cm vertical intervals by using multilevel diffusion and suction samplers indicated steep decreases in PO</span><sub>4</sub><span>&nbsp;concentrations in ground water flowing upward through the barrier. Samples from vertically aligned pairs of horizontal multiport suction samplers also indicated substantial decreases in PO</span><sub>4</sub><span>&nbsp;concentrations and lateral shifts in the plume’s discharge area as a result of varying pond stage. Measurements from Lee‐style seepage meters indicated substantially decreased PO</span><sub>4</sub><span>&nbsp;concentrations in discharging ground water in the treated area; temporal trends in water flux were related to pond stage. The advantages and limitations of each sampling device are described. Preliminary analysis of the first 2 years of data indicates that the barrier reduced PO</span><sub>4</sub><span>&nbsp;flux by as much as 95%.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6592.2009.01235.x","issn":"10693629","usgsCitation":"McCobb, T., LeBlanc, D., and Massey, A., 2009, Monitoring the removal of phosphate from ground water discharging through a pond-bottom permeable reactive barrier: Ground Water Monitoring and Remediation, v. 29, no. 2, p. 43-55, https://doi.org/10.1111/j.1745-6592.2009.01235.x.","productDescription":"13 p.","startPage":"43","endPage":"55","costCenters":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":476227,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1745-6592.2009.01235.x","text":"Publisher Index Page"},{"id":243762,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215926,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6592.2009.01235.x"}],"volume":"29","issue":"2","noUsgsAuthors":false,"publicationDate":"2009-05-18","publicationStatus":"PW","scienceBaseUri":"505a5df1e4b0c8380cd706d1","contributors":{"authors":[{"text":"McCobb, T.D. 0000-0003-1533-847X","orcid":"https://orcid.org/0000-0003-1533-847X","contributorId":97944,"corporation":false,"usgs":true,"family":"McCobb","given":"T.D.","affiliations":[],"preferred":false,"id":447161,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"LeBlanc, D.R.","contributorId":87141,"corporation":false,"usgs":true,"family":"LeBlanc","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":447160,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Massey, A.J.","contributorId":17065,"corporation":false,"usgs":true,"family":"Massey","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":447159,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70034715,"text":"70034715 - 2009 - Modelling predation by transient leopard seals for an ecosystem-based management of Southern Ocean fisheries","interactions":[],"lastModifiedDate":"2012-03-12T17:21:40","indexId":"70034715","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1458,"text":"Ecological Modelling","active":true,"publicationSubtype":{"id":10}},"title":"Modelling predation by transient leopard seals for an ecosystem-based management of Southern Ocean fisheries","docAbstract":"Correctly quantifying the impacts of rare apex marine predators is essential to ecosystem-based approaches to fisheries management, where harvesting must be sustainable for targeted species and their dependent predators. This requires modelling the uncertainty in such processes as predator life history, seasonal abundance and movement, size-based predation, energetic requirements, and prey vulnerability. We combined these uncertainties to evaluate the predatory impact of transient leopard seals on a community of mesopredators (seals and penguins) and their prey at South Georgia, and assess the implications for an ecosystem-based management. The mesopredators are highly dependent on Antarctic krill and icefish, which are targeted by regional fisheries. We used a state-space formulation to combine (1) a mark-recapture open-population model and individual identification data to assess seasonally variable leopard seal arrival and departure dates, numbers, and residency times; (2) a size-based bioenergetic model; and (3) a size-based prey choice model from a diet analysis. Our models indicated that prey choice and consumption reflected seasonal changes in leopard seal population size and structure, size-selective predation and prey vulnerability. A population of 104 (90-125) leopard seals, of which 64% were juveniles, consumed less than 2% of the Antarctic fur seal pup production of the area (50% of total ingested energy, IE), but ca. 12-16% of the local gentoo penguin population (20% IE). Antarctic krill (28% IE) were the only observed food of leopard seal pups and supplemented the diet of older individuals. Direct impacts on krill and fish were negligible, but the \"escapement\" due to leopard seal predation on fur seal pups and penguins could be significant for the mackerel icefish fishery at South Georgia. These results suggest that: (1) rare apex predators like leopard seals may control, and may depend on, populations of mesopredators dependent on prey species targeted by fisheries; and (2) predatory impacts and community control may vary throughout the predator's geographic range, and differ across ecosystems and management areas, depending on the seasonal abundance of the prey and the predator's dispersal movements. This understanding is important to integrate the predator needs as natural mortality of its prey in models to set prey catch limits for fisheries. Reliable estimates of the variability of these needs are essential for a precautionary interpretation in the context of an ecosystem-based management. ?? 2009 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Modelling","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.ecolmodel.2009.03.020","issn":"03043800","usgsCitation":"Forcada, J., Malone, D., Royle, J., and Staniland, I., 2009, Modelling predation by transient leopard seals for an ecosystem-based management of Southern Ocean fisheries: Ecological Modelling, v. 220, no. 12, p. 1513-1521, https://doi.org/10.1016/j.ecolmodel.2009.03.020.","startPage":"1513","endPage":"1521","numberOfPages":"9","costCenters":[],"links":[{"id":215955,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ecolmodel.2009.03.020"},{"id":243792,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"220","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5c72e4b0c8380cd6fcd2","contributors":{"authors":[{"text":"Forcada, J.","contributorId":31506,"corporation":false,"usgs":true,"family":"Forcada","given":"J.","email":"","affiliations":[],"preferred":false,"id":447162,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Malone, D.","contributorId":59642,"corporation":false,"usgs":true,"family":"Malone","given":"D.","email":"","affiliations":[],"preferred":false,"id":447163,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Royle, J. Andrew 0000-0003-3135-2167","orcid":"https://orcid.org/0000-0003-3135-2167","contributorId":96221,"corporation":false,"usgs":true,"family":"Royle","given":"J. Andrew","affiliations":[],"preferred":false,"id":447165,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Staniland, I.J.","contributorId":82433,"corporation":false,"usgs":true,"family":"Staniland","given":"I.J.","email":"","affiliations":[],"preferred":false,"id":447164,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035352,"text":"70035352 - 2009 - Hurricane frequency and landfall distribution for coastal wetlands of the Gulf coast, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:54","indexId":"70035352","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Hurricane frequency and landfall distribution for coastal wetlands of the Gulf coast, USA","docAbstract":"The regularity and severity of tropical storms are major determinants controlling ecosystem structure and succession for coastal ecosystems. Hurricane landfall rates vary greatly with high and low frequency for given coastal stretches of the southeastern United States. Site-specific meteorological data of hurricane wind speeds and direction, however, are only available for select populated cities of relatively sparse distribution and inland from the coast. A spatial simulation model of hurricane circulation, HURASIM, was applied to reconstruct chronologies of hurricane wind speeds and vectors for northern Gulf coast locations derived from historical tracking data of North Atlantic tropical storms dating back to 1851. Contrasts of storm frequencies showed that tropical storm incidence is nearly double for Florida coastal ecosystems than the westernmost stretches of Texas coastline. Finer-scale spatial simulations for the north-central Gulf coast exhibited sub-regional differences in storm strength and frequency with coastal position and latitude. The overall pattern of storm incidence in the Gulf basin indicates that the disturbance regime of coastal areas varies greatly along the coast, inland from the coast, and temporally over the period of record. Field and modeling studies of coastal ecosystems will benefit from this retrospective analysis of hurricane incidence and intensity both on a local or regional basis. ?? 2009 The Society of Wetland Scientists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wetlands","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1672/08-36.1","issn":"02775212","usgsCitation":"Doyle, T., 2009, Hurricane frequency and landfall distribution for coastal wetlands of the Gulf coast, USA: Wetlands, v. 29, no. 1, p. 35-43, https://doi.org/10.1672/08-36.1.","startPage":"35","endPage":"43","numberOfPages":"9","costCenters":[],"links":[{"id":215464,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1672/08-36.1"},{"id":243272,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a32b7e4b0c8380cd5ea11","contributors":{"authors":[{"text":"Doyle, T.W. 0000-0001-5754-0671","orcid":"https://orcid.org/0000-0001-5754-0671","contributorId":16783,"corporation":false,"usgs":true,"family":"Doyle","given":"T.W.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":450299,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70035483,"text":"70035483 - 2009 - The moon as a radiometric reference source for on-orbit sensor stability calibration","interactions":[],"lastModifiedDate":"2012-03-12T17:21:56","indexId":"70035483","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"The moon as a radiometric reference source for on-orbit sensor stability calibration","docAbstract":"The wealth of data generated by the world's Earth-observing satellites, now spanning decades, allows the construction of long-term climate records. A key consideration for detecting climate trends is precise quantification of temporal changes in sensor calibration on-orbit. For radiometer instruments in the solar reflectance wavelength range (near-UV to shortwave-IR), the Moon can be viewed as a solar diffuser with exceptional stability properties. A model for the lunar spectral irradiance that predicts the geometric variations in the Moon's brightness with ???1% precision has been developed at the U.S. Geological Survey in Flagstaff, AZ. Lunar model results corresponding to a series of Moon observations taken by an instrument can be used to stabilize sensor calibration with sub-percent per year precision, as demonstrated by the Sea-viewing Wide Field-of-view Sensor (SeaWiFS). The inherent stability of the Moon and the operational model to utilize the lunar irradiance quantity provide the Moon as a reference source for monitoring radiometric calibration in orbit. This represents an important capability for detecting terrestrial climate change from space-based radiometric measurements.","largerWorkTitle":"International Geoscience and Remote Sensing Symposium (IGARSS)","conferenceTitle":"2009 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2009","conferenceDate":"12 July 2009 through 17 July 2009","conferenceLocation":"Cape Town","language":"English","doi":"10.1109/IGARSS.2009.5417690","isbn":"9781424433957","usgsCitation":"Stone, T., 2009, The moon as a radiometric reference source for on-orbit sensor stability calibration, <i>in</i> International Geoscience and Remote Sensing Symposium (IGARSS), v. 5, Cape Town, 12 July 2009 through 17 July 2009, https://doi.org/10.1109/IGARSS.2009.5417690.","costCenters":[],"links":[{"id":476198,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://zenodo.org/record/1272715","text":"External Repository"},{"id":215228,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/IGARSS.2009.5417690"},{"id":243017,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bade9e4b08c986b323e5d","contributors":{"authors":[{"text":"Stone, T.C.","contributorId":74874,"corporation":false,"usgs":true,"family":"Stone","given":"T.C.","email":"","affiliations":[],"preferred":false,"id":450856,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
]}