{"pageNumber":"2121","pageRowStart":"53000","pageSize":"25","recordCount":184660,"records":[{"id":70000455,"text":"70000455 - 2008 - Structure, stratigraphy, and origin of Husband Hill, Columbia Hills, Gusev Crater, Mars","interactions":[],"lastModifiedDate":"2012-03-08T17:16:36","indexId":"70000455","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2317,"text":"Journal of Geophysical Research E: Planets","active":true,"publicationSubtype":{"id":10}},"title":"Structure, stratigraphy, and origin of Husband Hill, Columbia Hills, Gusev Crater, Mars","docAbstract":"The strike and dip of lithologic units imaged in stereo by the Spirit rover in the Columbia Hills using three-dimensional imaging software shows that measured dips (15-32??) for bedding on the main edifice of the Columbia Hill are steeper than local topography (???8-10??). Outcrops measured on West Spur are conformable in strike with shallower dips (7-15??) than observed on Husband Hill. Dips are consistent with observed strata draping the Columbia Hills. Initial uplift was likely related either to the formation of the Gusev Crater central peak or ring or through mutual interference of overlapping crater rims. Uplift was followed by subsequent draping by a series of impact and volcaniclastic materials that experienced temporally and spatially variable aqueous infiltration, cementation, and alteration episodically during or after deposition. West Spur likely represents a spatially isolated depositional event. Erosion by a variety of processes, including mass wasting, removed tens of meters of materials and formed the Tennessee Valley primarily after deposition. This was followed by eruption of the Adirondack-class plains basalt lava flows which embayed the Columbia Hills. Minor erosion, impact, and aeolian processes have subsequently modified the Columbia Hills. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research E: Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007JE003041","issn":"01480227","usgsCitation":"McCoy, T., Sims, M., Schmidt, M., Edwards, L., Tornabene, L., Crumpler, L., Cohen, B.A., Soderblom, L., Blaney, D., Squyres, S.W., Arvidson, R., Rica, J., Treguier, E., d’Uston, C., Grant, J.A., McSween, H., Golombek, M., Haldemann, A.F., and de Souza, P., 2008, Structure, stratigraphy, and origin of Husband Hill, Columbia Hills, Gusev Crater, Mars: Journal of Geophysical Research E: Planets, v. 113, no. 6, https://doi.org/10.1029/2007JE003041.","costCenters":[],"links":[{"id":476532,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007je003041","text":"Publisher Index Page"},{"id":18873,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007JE003041"},{"id":203516,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"113","issue":"6","noUsgsAuthors":false,"publicationDate":"2008-06-17","publicationStatus":"PW","scienceBaseUri":"4f4e4b13e4b07f02db6a33fe","contributors":{"authors":[{"text":"McCoy, T.J.","contributorId":84883,"corporation":false,"usgs":true,"family":"McCoy","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":345863,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sims, M.","contributorId":52695,"corporation":false,"usgs":true,"family":"Sims","given":"M.","affiliations":[],"preferred":false,"id":345856,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schmidt, M.E.","contributorId":53075,"corporation":false,"usgs":true,"family":"Schmidt","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":345858,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Edwards, L.","contributorId":91976,"corporation":false,"usgs":true,"family":"Edwards","given":"L.","affiliations":[],"preferred":false,"id":345865,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Tornabene, L.L.","contributorId":99679,"corporation":false,"usgs":true,"family":"Tornabene","given":"L.L.","email":"","affiliations":[],"preferred":false,"id":345866,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Crumpler, L.S.","contributorId":81575,"corporation":false,"usgs":true,"family":"Crumpler","given":"L.S.","email":"","affiliations":[],"preferred":false,"id":345862,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Cohen, B. A.","contributorId":34239,"corporation":false,"usgs":true,"family":"Cohen","given":"B.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":345852,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Soderblom, L.A. 0000-0002-0917-853X","orcid":"https://orcid.org/0000-0002-0917-853X","contributorId":6139,"corporation":false,"usgs":true,"family":"Soderblom","given":"L.A.","affiliations":[],"preferred":false,"id":345848,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Blaney, D.L.","contributorId":43477,"corporation":false,"usgs":true,"family":"Blaney","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":345854,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Squyres, S. W.","contributorId":31836,"corporation":false,"usgs":true,"family":"Squyres","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":345850,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Arvidson, R. E.","contributorId":46666,"corporation":false,"usgs":true,"family":"Arvidson","given":"R. E.","affiliations":[],"preferred":false,"id":345855,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Rica, J.W.","contributorId":85699,"corporation":false,"usgs":true,"family":"Rica","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":345864,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Treguier, E.","contributorId":58750,"corporation":false,"usgs":true,"family":"Treguier","given":"E.","affiliations":[],"preferred":false,"id":345860,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"d’Uston, C.","contributorId":38689,"corporation":false,"usgs":true,"family":"d’Uston","given":"C.","email":"","affiliations":[],"preferred":false,"id":345853,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Grant, J. A.","contributorId":28334,"corporation":false,"usgs":true,"family":"Grant","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":345849,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"McSween, H.Y.","contributorId":64370,"corporation":false,"usgs":true,"family":"McSween","given":"H.Y.","affiliations":[],"preferred":false,"id":345861,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Golombek, M.P.","contributorId":52696,"corporation":false,"usgs":true,"family":"Golombek","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":345857,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"Haldemann, A. F. C.","contributorId":33437,"corporation":false,"usgs":false,"family":"Haldemann","given":"A.","email":"","middleInitial":"F. C.","affiliations":[],"preferred":false,"id":345851,"contributorType":{"id":1,"text":"Authors"},"rank":18},{"text":"de Souza, P.A.","contributorId":57579,"corporation":false,"usgs":true,"family":"de Souza","given":"P.A.","affiliations":[],"preferred":false,"id":345859,"contributorType":{"id":1,"text":"Authors"},"rank":19}]}}
,{"id":70000449,"text":"70000449 - 2008 - Surface albedo observations at Gusev Crater and Meridiani Planum, Mars","interactions":[],"lastModifiedDate":"2012-03-08T17:16:35","indexId":"70000449","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2317,"text":"Journal of Geophysical Research E: Planets","active":true,"publicationSubtype":{"id":10}},"title":"Surface albedo observations at Gusev Crater and Meridiani Planum, Mars","docAbstract":"During the Mars Exploration Rover mission, the Pancam instrument has periodically acquired large-scale panoramic images with its broadband (739??338 nm) filter in order to estimate the Lambert bolometric albedo of the surface along each rover's traverse. In this work we present the full suite of such estimated albedo values measured to date by the Spirit and Opportunity rovers along their traverses in Gusev Crater and Meridiani Planum, respectively. We include estimated bolometric albedo values of individual surface features (e.g., outcrops, dusty plains, aeolian bed forms, wheel tracks, light-toned soils, and crater walls) as well as overall surface averages of the 43 total panoramic albedo data sets acquired to date. We also present comparisons to estimated Lambert albedo values taken from the Mars Global Surveyor Mars Orbiter Camera (MOC) along the rovers' traverses, and to the large-scale bolometric albedos of the sites from the Viking Orbiter Infrared Thermal Mapper (IRTM) and Mars Global Surveyor/Thermal Emission Spectrometer (TES). The ranges of Pancam-derived albedos at Gusev Crater (0.14 to 0.25) and in Meridiani Planum. (0.10 to 0.18) are in good agreement with IRTM, TES, and MOC orbital measurements. These data sets will be a useful tool and benchmark for future investigations of albodo variations with time, including measurements from orbital instruments like the Context Camera and High Resolution Imaging Science Experiment on Mars Reconnaissance Orbiter. Long-term, accurate albedo measurements could also be important for future efforts in climate modeling as well as for studies of active surface processes. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research E: Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007JE002976","issn":"01480227","usgsCitation":"Bell, J., Rice, M., Johnson, J.R., and Hare, T., 2008, Surface albedo observations at Gusev Crater and Meridiani Planum, Mars: Journal of Geophysical Research E: Planets, v. 113, no. 6, https://doi.org/10.1029/2007JE002976.","costCenters":[],"links":[{"id":18869,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007JE002976"},{"id":203435,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"113","issue":"6","noUsgsAuthors":false,"publicationDate":"2008-05-24","publicationStatus":"PW","scienceBaseUri":"4f4e4afee4b07f02db697365","contributors":{"authors":[{"text":"Bell, J.F. III","contributorId":97612,"corporation":false,"usgs":true,"family":"Bell","given":"J.F.","suffix":"III","email":"","affiliations":[],"preferred":false,"id":345792,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rice, M.S.","contributorId":105027,"corporation":false,"usgs":true,"family":"Rice","given":"M.S.","affiliations":[],"preferred":false,"id":345793,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, J. R.","contributorId":69278,"corporation":false,"usgs":true,"family":"Johnson","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":345791,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hare, T.M. 0000-0001-8842-389X","orcid":"https://orcid.org/0000-0001-8842-389X","contributorId":43828,"corporation":false,"usgs":true,"family":"Hare","given":"T.M.","affiliations":[],"preferred":false,"id":345790,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000448,"text":"70000448 - 2008 - Distributed energy balance modeling of South Cascade Glacier, Washington and assessment of model uncertainty","interactions":[],"lastModifiedDate":"2012-03-08T17:16:34","indexId":"70000448","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2318,"text":"Journal of Geophysical Research F: Earth Surface","active":true,"publicationSubtype":{"id":10}},"title":"Distributed energy balance modeling of South Cascade Glacier, Washington and assessment of model uncertainty","docAbstract":"We have developed a physically based, distributed surface energy balance model to simulate glacier mass balance under meteorological and climatological forcing. Here we apply the model to estimate summer ablation on South Cascade Glacier, Washington, for the 2004 and 2005 mass balance seasons. To arrive at optimal mass balance simulations, we investigate and quantify model uncertainty associated with selecting from a range of physical parameter values that are not commonly measured in glaciological mass balance field studies. We optimize the performance of the model by varying values for atmospheric transmissivity, the albedo of surrounding topography, precipitation-elevation lapse rate, surface roughness for turbulent exchange of momentum, and snow albedo aging coefficient. Of these the snow aging parameter and precipitation lapse rates have the greatest influence on the modeled ablation. We examined model sensitivity to varying parameters by performing an additional 103 realizations with parameters randomly chosen over a ??5% range centered about the optimum values. The best fit suite of model parameters yielded a net balance of -1.69??0.38 m water equivalent (WE) for the 2004 water year and -2.10??0.30 m WE up to 11 September 2005. The 2004 result is within 3% of the measured value. These simulations account for 91% and 93% of the variance in measured ablation for the respective years. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research F: Earth Surface","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007JF000850","issn":"01480227","usgsCitation":"Anslow, F.S., Hostetler, S., Bidlake, W.R., and Clark, P., 2008, Distributed energy balance modeling of South Cascade Glacier, Washington and assessment of model uncertainty: Journal of Geophysical Research F: Earth Surface, v. 113, no. 2, https://doi.org/10.1029/2007JF000850.","costCenters":[],"links":[{"id":476530,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007jf000850","text":"Publisher Index Page"},{"id":18868,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007JF000850"},{"id":203598,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"113","issue":"2","noUsgsAuthors":false,"publicationDate":"2008-05-31","publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db64a197","contributors":{"authors":[{"text":"Anslow, Faron S.","contributorId":35442,"corporation":false,"usgs":true,"family":"Anslow","given":"Faron","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":345788,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hostetler, S. 0000-0003-2272-8302","orcid":"https://orcid.org/0000-0003-2272-8302","contributorId":30336,"corporation":false,"usgs":true,"family":"Hostetler","given":"S.","affiliations":[],"preferred":false,"id":345787,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bidlake, W. R.","contributorId":28953,"corporation":false,"usgs":true,"family":"Bidlake","given":"W.","middleInitial":"R.","affiliations":[],"preferred":false,"id":345786,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Clark, P.U.","contributorId":78449,"corporation":false,"usgs":true,"family":"Clark","given":"P.U.","email":"","affiliations":[],"preferred":false,"id":345789,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000152,"text":"70000152 - 2008 - Size and age distributions of Juvenile Connecticut River American shad above Hadley Falls: Influence on outmigration representation and timing","interactions":[],"lastModifiedDate":"2012-03-08T17:16:36","indexId":"70000152","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3301,"text":"River Research and Applications","active":true,"publicationSubtype":{"id":10}},"title":"Size and age distributions of Juvenile Connecticut River American shad above Hadley Falls: Influence on outmigration representation and timing","docAbstract":"Age- and size-based habitat use and movement patterns of young-of-year American shad in rivers are not well understood. Adult females reach their natal rivers at different times and ascend the river at different rates, which may lead to variation of hatch dates at a single location. Also, shad are serial spawners, so eggs of the same female may be released at different distances from the river mouth. It has long been hypothesized that juvenile shad emigration is a function of size or age, and not necessarily keyed only to a decrease in water temperature during the fall. We seined three sites in the Connecticut River biweekly to collect pre-migrant shad during river residence (spring to fall). During emigration, samples were also collected weekly at two hydroelectric facilities. Otoliths were removed from ???20% of the fish to obtain age and growth rate information. We found increases in length and age over time until late in the season, after which such increases were mostly insigniftlant. Cohorts collected early in the year as pre-migrants were never sampled as migrants later in the year at the hydroelectric projects. Cohorts collected late in the year as migrants were never collected earlier in the year as pre-migrants. Only during a narrow window of time were fish collected as both pre-migrants and migrants. Fish that were hatched later in the season exhibited higher growth rates than fish that were hatched earlier in the season. Copyright ?? 2008 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"River Research and Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/rra.1111","issn":"15351459","usgsCitation":"O'Donnell, M., and Letcher, B., 2008, Size and age distributions of Juvenile Connecticut River American shad above Hadley Falls: Influence on outmigration representation and timing: River Research and Applications, v. 24, no. 7, p. 929-940, https://doi.org/10.1002/rra.1111.","startPage":"929","endPage":"940","costCenters":[],"links":[{"id":203323,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18696,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rra.1111"}],"volume":"24","issue":"7","noUsgsAuthors":false,"publicationDate":"2008-03-25","publicationStatus":"PW","scienceBaseUri":"4f4e49f2e4b07f02db5eeee0","contributors":{"authors":[{"text":"O'Donnell, M. J. 0000-0002-9089-2377","orcid":"https://orcid.org/0000-0002-9089-2377","contributorId":23670,"corporation":false,"usgs":true,"family":"O'Donnell","given":"M. J.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":344985,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Letcher, B. H. 0000-0003-0191-5678","orcid":"https://orcid.org/0000-0003-0191-5678","contributorId":48132,"corporation":false,"usgs":true,"family":"Letcher","given":"B.","middleInitial":"H.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":344986,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70000528,"text":"70000528 - 2008 - A new state record of Allocapnia simmonsi Kondratieff and Voshell (Plecoptera: Capniidae) from West Virginia, U.S.A., with additional records from Pennsylvania and Virginia","interactions":[],"lastModifiedDate":"2012-03-08T17:16:35","indexId":"70000528","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1520,"text":"Entomological News","active":true,"publicationSubtype":{"id":10}},"title":"A new state record of Allocapnia simmonsi Kondratieff and Voshell (Plecoptera: Capniidae) from West Virginia, U.S.A., with additional records from Pennsylvania and Virginia","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Entomological News","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.3157/0013-872X(2008)119[303:ANSROA]2.0.CO;2","issn":"0013872X","usgsCitation":"Hood, R., Kirchner, R., and Earle, J., 2008, A new state record of Allocapnia simmonsi Kondratieff and Voshell (Plecoptera: Capniidae) from West Virginia, U.S.A., with additional records from Pennsylvania and Virginia: Entomological News, v. 119, no. 3, p. 303-305, https://doi.org/10.3157/0013-872X(2008)119[303:ANSROA]2.0.CO;2.","startPage":"303","endPage":"305","costCenters":[],"links":[{"id":203571,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18929,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3157/0013-872X(2008)119[303:ANSROA]2.0.CO;2"}],"volume":"119","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e4b7e4b0c8380cd46882","contributors":{"authors":[{"text":"Hood, R.W.","contributorId":56775,"corporation":false,"usgs":true,"family":"Hood","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":346198,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kirchner, R.F.","contributorId":31096,"corporation":false,"usgs":true,"family":"Kirchner","given":"R.F.","email":"","affiliations":[],"preferred":false,"id":346197,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Earle, J.I.","contributorId":98861,"corporation":false,"usgs":true,"family":"Earle","given":"J.I.","email":"","affiliations":[],"preferred":false,"id":346199,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70000507,"text":"70000507 - 2008 - Simulated ground motion in Santa Clara Valley, California, and vicinity from M≥6.7 scenario earthquakes","interactions":[],"lastModifiedDate":"2016-01-27T14:34:37","indexId":"70000507","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Simulated ground motion in Santa Clara Valley, California, and vicinity from M≥6.7 scenario earthquakes","docAbstract":"<p>Models of the Santa Clara Valley (SCV) 3D velocity structure and 3D finite-difference software are used to predict ground motions from scenario earthquakes on the San Andreas (SAF), Monte Vista/Shannon, South Hayward, and Calaveras faults. Twenty different scenario ruptures are considered that explore different source models with alternative hypocenters, fault dimensions, and rupture velocities and three different velocity models. Ground motion from the full wave field up to 1&nbsp;Hz is exhibited as maps of peak horizontal velocity and pseudospectral acceleration at periods of 1, 3, and 5&nbsp;sec. Basin edge effects and amplification in sedimentary basins of the SCV are observed that exhibit effects from shallow sediments with relatively low shear-wave velocity (330 m/sec). Scenario earthquakes have been simulated for events with the following magnitudes: (1)&nbsp;<strong>M</strong>&nbsp;6.8&ndash;7.4 Calaveras sources, (2)&nbsp;<strong>M</strong>&nbsp;6.7&ndash;6.9 South Hayward sources, (3)&nbsp;<strong>M</strong>&nbsp;6.7 Monte Vista/Shannon sources, and (4)&nbsp;<strong>M</strong>&nbsp;7.1&ndash;7.2 Peninsula segment of the SAF sources. Ground motions are strongly influenced by source parameters such as rupture velocity, rise time, maximum depth of rupture, hypocenter, and source directivity. Cenozoic basins also exert a strong influence on ground motion. For example, the Evergreen Basin on the northeastern side of the SCV is especially responsive to 3&ndash;5-sec energy from most scenario earthquakes. The Cupertino Basin on the southwestern edge of the SCV tends to be highly excited by many Peninsula and Monte Vista fault scenarios. Sites over the interior of the Evergreen Basin can have long-duration coda that reflect the trapping of seismic energy within this basin. Plausible scenarios produce predominantly 5-sec wave trains with greater than 30 cm/sec sustained ground-motion amplitude with greater than 30&nbsp;sec duration within the Evergreen Basin.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Seismological Society of America","publisherLocation":"Stanford","doi":"10.1785/0120060230","issn":"00371106","usgsCitation":"Harmsen, S., and Hartzell, S.H., 2008, Simulated ground motion in Santa Clara Valley, California, and vicinity from M≥6.7 scenario earthquakes: Bulletin of the Seismological Society of America, v. 98, no. 3, p. 1243-1271, https://doi.org/10.1785/0120060230.","productDescription":"29 p.","startPage":"1243","endPage":"1271","numberOfPages":"29","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":203361,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18913,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120060230"}],"country":"United States","state":"California","otherGeospatial":"Santa Clara Valley","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.1240234375,\n              38.02213147353745\n            ],\n            [\n              -122.8216552734375,\n              37.56635122499224\n            ],\n            [\n              -121.72302246093749,\n              36.76529191711624\n            ],\n            [\n              -120.99243164062501,\n              37.19095471582608\n            ],\n            [\n              -122.1240234375,\n              38.02213147353745\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"98","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f9e4b07f02db5f331d","contributors":{"authors":[{"text":"Harmsen, Stephen C. harmsen@usgs.gov","contributorId":1795,"corporation":false,"usgs":true,"family":"Harmsen","given":"Stephen C.","email":"harmsen@usgs.gov","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":false,"id":346082,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hartzell, Stephen H. 0000-0003-0858-9043 shartzell@usgs.gov","orcid":"https://orcid.org/0000-0003-0858-9043","contributorId":2594,"corporation":false,"usgs":true,"family":"Hartzell","given":"Stephen","email":"shartzell@usgs.gov","middleInitial":"H.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":346081,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70000511,"text":"70000511 - 2008 - Differential exposure, duration, and sensitivity of unionoidean bivalve life stages to environmental contaminants","interactions":[],"lastModifiedDate":"2012-03-08T17:16:33","indexId":"70000511","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2564,"text":"Journal of the North American Benthological Society","onlineIssn":"1937-237X","printIssn":"0887-3593","active":true,"publicationSubtype":{"id":10}},"title":"Differential exposure, duration, and sensitivity of unionoidean bivalve life stages to environmental contaminants","docAbstract":"Freshwater mussels (superfamily Unionoidea) are in serious global decline and in urgent need of protection and conservation. The declines have been attributed to a wide array of human activities resulting in pollution and water-quality degradation, and habitat destruction and alteration. Linkages among poor water quality, pollutant sources, and mussel decline in rivers and streams have been associated with results of laboratory-based tests of specific pollutants. However, uncertainties remain about the relationship of laboratory data to actual contaminant exposure routes for various mussel species, life stages, and in the habitats occupied during these exposures. We evaluated the pathways of exposure to environmental pollutants for all 4 life stages (free glochidia, encysted glochidia, juveniles, adults) of unionoidean mussels and found that each life stage has both common and unique characteristics that contribute to observed differences in exposure and sensitivity. Free glochidia typically are exposed only briefly (e.g., seconds to days) through surface water, whereas adults sustain exposure over years to decades through surface water, pore water, sediment, and diet. Juveniles live largely burrowed in the sediment for the first 0 to 4 y of life. Thus, sediment, pore water, and diet are the predominant exposure routes for this life stage, but surface water also might contribute to exposure during certain periods and environmental conditions. The obligate parasitic stage (encysted glochidia stage) on a host fish might be exposed from surface water while partially encysted or from toxicants in host-fish tissue while fully encysted. Laboratory methods for testing for acute and chronic exposures in water have advanced, and toxicant-specific information has increased in recent years. However, additional research is needed to understand interactions of life history, habitat, and long-term exposure to contaminants through water, pore water, sediment, and diet so that the risks of environmental exposures can be properly assessed and managed. ?? 2008 by The North American Benthological Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the North American Benthological Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1899/07-094.1","issn":"08873593","usgsCitation":"Cope, W., Bringolf, R., Buchwalter, D., Newton, T., Ingersoll, C., Wang, N., Augspurger, T., Dwyer, F., Barnhart, M., Neves, R.J., and Hammer, E., 2008, Differential exposure, duration, and sensitivity of unionoidean bivalve life stages to environmental contaminants: Journal of the North American Benthological Society, v. 27, no. 2, p. 451-462, https://doi.org/10.1899/07-094.1.","startPage":"451","endPage":"462","costCenters":[],"links":[{"id":203592,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18916,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1899/07-094.1"}],"volume":"27","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d706","contributors":{"authors":[{"text":"Cope, W.G.","contributorId":71918,"corporation":false,"usgs":true,"family":"Cope","given":"W.G.","email":"","affiliations":[],"preferred":false,"id":346095,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bringolf, R.B.","contributorId":33826,"corporation":false,"usgs":true,"family":"Bringolf","given":"R.B.","affiliations":[],"preferred":false,"id":346093,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Buchwalter, D.B.","contributorId":20053,"corporation":false,"usgs":true,"family":"Buchwalter","given":"D.B.","email":"","affiliations":[],"preferred":false,"id":346091,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Newton, T.J.","contributorId":104428,"corporation":false,"usgs":true,"family":"Newton","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":346099,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ingersoll, C.G. 0000-0003-4531-5949","orcid":"https://orcid.org/0000-0003-4531-5949","contributorId":56338,"corporation":false,"usgs":true,"family":"Ingersoll","given":"C.G.","affiliations":[],"preferred":false,"id":346094,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wang, N.","contributorId":81615,"corporation":false,"usgs":true,"family":"Wang","given":"N.","email":"","affiliations":[],"preferred":false,"id":346096,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Augspurger, T.","contributorId":81844,"corporation":false,"usgs":false,"family":"Augspurger","given":"T.","email":"","affiliations":[],"preferred":false,"id":346097,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Dwyer, F.J.","contributorId":107818,"corporation":false,"usgs":true,"family":"Dwyer","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":346101,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Barnhart, M.C.","contributorId":107410,"corporation":false,"usgs":true,"family":"Barnhart","given":"M.C.","affiliations":[],"preferred":false,"id":346100,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Neves, R. J.","contributorId":30936,"corporation":false,"usgs":true,"family":"Neves","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":346092,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Hammer, E.","contributorId":94772,"corporation":false,"usgs":true,"family":"Hammer","given":"E.","email":"","affiliations":[],"preferred":false,"id":346098,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":70000475,"text":"70000475 - 2008 - Detecting the response of fish assemblages to stream restoration: Effects of different sampling designsf","interactions":[],"lastModifiedDate":"2012-03-08T17:16:37","indexId":"70000475","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Detecting the response of fish assemblages to stream restoration: Effects of different sampling designsf","docAbstract":"Increased trout production within limited stream reaches is a popular goal for restoration projects, yet investigators seldom monitor, assess, or publish the associated effects on fish assemblages. Fish community data from a total of 40 surveys at restored and reference reaches in three streams of the Catskill Mountains, New York, were analyzed a posteriori to determine how the ability to detect significant changes in biomass of brown trout Salmo trutta, all salmonids, or the entire fish community differs with effect size, number of streams assessed, process used to quantify the index response, and number of replicates collected before and after restoration. Analyses of statistical power (probability of detecting a meaningful difference or effect) and integrated power (average power over all possible ??-values) were combined with before-after, control-impact analyses to assess the effectiveness of alternate sampling and analysis designs. In general, the more robust analyses indicated that biomass of brown trout and salmonid populations increased significantly in restored reaches but that the net increases (relative to the reference reach) were significant only at two of four restored reaches. Restoration alone could not account for the net increases in total biomass of fish communities. Power analyses generally showed that integrated power was greater than 0.95 when (1) biomass increases were larger than 5.0 g/m2, (2) the total number of replicates ranged from 4 to 8, and (3) coefficients of variation (CVs) for responses were less than 40%. Integrated power was often greater than 0.95 for responses as low as 1.0 g/m2 if the response CVs were less than 30%. Considering that brown trout, salmonid, and community biomass increased by 2.99 g/m2 on average (SD= 1.17 g/m2) in the four restored reaches, use of two to three replicates both before and after restoration would have an integrated power of about 0.95 and would help detect significant changes in fish biomass under similar situations. ?? Copyright by the American Fisheries Society 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M06-171.1","issn":"02755947","usgsCitation":"Baldigo, B., and Warren, D., 2008, Detecting the response of fish assemblages to stream restoration: Effects of different sampling designsf: North American Journal of Fisheries Management, v. 28, no. 3, p. 919-934, https://doi.org/10.1577/M06-171.1.","startPage":"919","endPage":"934","costCenters":[],"links":[{"id":203487,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18889,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M06-171.1"}],"volume":"28","issue":"3","noUsgsAuthors":false,"publicationDate":"2008-06-01","publicationStatus":"PW","scienceBaseUri":"4f4e4aa8e4b07f02db667ac8","contributors":{"authors":[{"text":"Baldigo, Barry P. 0000-0002-9862-9119","orcid":"https://orcid.org/0000-0002-9862-9119","contributorId":25174,"corporation":false,"usgs":true,"family":"Baldigo","given":"Barry P.","affiliations":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"preferred":true,"id":345986,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Warren, D.R.","contributorId":105741,"corporation":false,"usgs":true,"family":"Warren","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":345987,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70000508,"text":"70000508 - 2008 - Species composition and habitat associations of benthic algal assemblages in headwater streams of the Sierra Nevada, California","interactions":[],"lastModifiedDate":"2018-09-13T10:27:09","indexId":"70000508","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3746,"text":"Western North American Naturalist","onlineIssn":"1944-8341","printIssn":"1527-0904","active":true,"publicationSubtype":{"id":10}},"title":"Species composition and habitat associations of benthic algal assemblages in headwater streams of the Sierra Nevada, California","docAbstract":"Despite their trophic importance and potential importance as bioindicators of stream condition, benthic algae have not been well studied in California. In particular there are few studies from small streams in the Sierra Nevada. The objective of this study was to determine the standing crop of chlorophyll-a and benthic algal species assemblages present in the small 1st- and 2nd-order streams of the Kings River Experimental Watersheds (KREW, watersheds of Bull, Providence, Duff, and Teakettle Creeks) and determine the associations of these measures with stream habitat. We collected samples of benthic algae from rock substrata in September 2002 (7 sites) and 2005 (the same 7 sites plus 5 additional sites). Habitat and water-quality data were collected concurrently. Chlorophyll-a values ranged from 0.2 to 3.2 mg??m-2. Chlorophyll-a in the Bull Creek watershed was generally lower than in the other watersheds. Benthic algal assemblages were dominated by diatoms and cyanobacteria. We collected 79 taxa of diatoms in 2002 and 126 taxa in 2005. Diatom taxa richness in individual samples ranged from 15 to 47. Nonmetric multidimensional scaling analysis of arcsine square-root transformed proportional abundances of diatoms identified 3 groups of sites. Bull Creek sites were generally different from other sites (group 1), and the sites from Bull Creek were different in 2002 (group 2) and 2005 (group 3). Five taxa appeared to be particularly important in distinguishing groups: Achnanthidium minutissimum, Cocconeis placentula, Eunotia incisa, Eunotia pectinalis var. minor, and Planothidium lanceolatum. Elevation, water temperature, pH, specific conductance, and canopy were habitat variables correlated with the differences in diatom assemblages among sites. Our results provide a valuable baseline for future studies of benthic algae in Sierra Nevada headwater streams and will be particularly important in understanding the effects of different forest restoration management strategies being tested in the KREW project.","language":"English","publisher":"Monte L. Bean Life Science Museum, Brigham Young University","doi":"10.3398/1527-0904(2008)68[194:SCAHAO]2.0.CO;2","issn":"15270904","usgsCitation":"Brown, L., May, J., and Hunsaker, C., 2008, Species composition and habitat associations of benthic algal assemblages in headwater streams of the Sierra Nevada, California: Western North American Naturalist, v. 68, no. 2, p. 194-209, https://doi.org/10.3398/1527-0904(2008)68[194:SCAHAO]2.0.CO;2.","productDescription":"16 p.","startPage":"194","endPage":"209","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":487113,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://scholarsarchive.byu.edu/wnan/vol68/iss2/7","text":"External Repository"},{"id":203480,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18914,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.3398/1527-0904(2008)68[194:SCAHAO]2.0.CO;2"}],"volume":"68","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b94f5e4b08c986b31acd8","contributors":{"authors":[{"text":"Brown, L. R. 0000-0001-6702-4531","orcid":"https://orcid.org/0000-0001-6702-4531","contributorId":66391,"corporation":false,"usgs":true,"family":"Brown","given":"L. R.","affiliations":[],"preferred":false,"id":346084,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"May, J. T. 0000-0002-5699-2112","orcid":"https://orcid.org/0000-0002-5699-2112","contributorId":72505,"corporation":false,"usgs":true,"family":"May","given":"J. T.","affiliations":[],"preferred":false,"id":346085,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hunsaker, C.T.","contributorId":102186,"corporation":false,"usgs":true,"family":"Hunsaker","given":"C.T.","email":"","affiliations":[],"preferred":false,"id":346086,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70000473,"text":"70000473 - 2008 - Linking landscapes and habitat suitability scores for diadromous fish restoration in the susquehanna river basin","interactions":[],"lastModifiedDate":"2012-03-08T17:16:38","indexId":"70000473","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Linking landscapes and habitat suitability scores for diadromous fish restoration in the susquehanna river basin","docAbstract":"Dams within the Susquehanna River drainage, Pennsylvania, are potential barriers to migration of diadromous fishes, and many are under consideration for removal to facilitate fish passage. To provide useful input for prioritizing dam removal, we examined relations between landscape-scale factors and habitat suitability indices (HSIs) for native diadromous species of the Susquehanna River. We used two different methods (U.S. Fish and Wildlife Service method: Stier and Crance [1985], Ross et al. [1993a, 1993b, 1997], and Pardue [1983]; Pennsylvania State University method: Carline et al. [1994]) to calculate HSIs for several life stages of American shad Alosa sapidissima, alewives Alosa pseudoharengus, and blueback herring Alosa aestivalis and a single HSI for American eels Anguilla rostrata based on habitat variables measured at transects spaced every 5 km on six major Susquehanna River tributaries. Using geographical information systems, we calculated land use and geologic variables upstream from each transect and associated those data with HSIs calculated at each transect. We then performed canonical correlation analysis to determine how HSIs were linked to geologic and land use factors. Canonical correlation analysis identified the proportion of watershed underlain by carbonate rock as a positive correlate of HSIs for all species and life stages except American eels and juvenile blueback herring. We hypothesize that potential mechanisms linking carbonate rock to habitat suitability include increased productivity and buffering capacity. No other consistent patterns of positive or negative correlation between landscape-scale factors and HSIs were evident. This analysis will be useful for prioritizing removal of dams in the Susquehanna River drainage, because it provides a broad perspective on relationships between habitat suitability for diadromous fishes and easily measured landscape factors. This approach can be applied elsewhere to elucidate relationships between fine- and coarse-scale variables and suitability of habitat for fishes. ?? Copyright by the American Fisheries Society 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M06-120.1","issn":"02755947","usgsCitation":"Kocovsky, P., Ross, R.M., Dropkin, D.S., and Campbell, J., 2008, Linking landscapes and habitat suitability scores for diadromous fish restoration in the susquehanna river basin: North American Journal of Fisheries Management, v. 28, no. 3, p. 906-918, https://doi.org/10.1577/M06-120.1.","startPage":"906","endPage":"918","costCenters":[],"links":[{"id":203556,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18888,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M06-120.1"}],"volume":"28","issue":"3","noUsgsAuthors":false,"publicationDate":"2008-06-01","publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a5064","contributors":{"authors":[{"text":"Kocovsky, P.M.","contributorId":78447,"corporation":false,"usgs":true,"family":"Kocovsky","given":"P.M.","affiliations":[],"preferred":false,"id":345984,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ross, R. M.","contributorId":39311,"corporation":false,"usgs":true,"family":"Ross","given":"R.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":345982,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dropkin, D. S.","contributorId":87084,"corporation":false,"usgs":true,"family":"Dropkin","given":"D.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":345985,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Campbell, J.M.","contributorId":74385,"corporation":false,"usgs":true,"family":"Campbell","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":345983,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70000481,"text":"70000481 - 2008 - Use of landsat ETM+ SLC-off segment-based gap-filled imagery for crop type mapping","interactions":[],"lastModifiedDate":"2017-04-03T14:38:53","indexId":"70000481","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1753,"text":"Geocarto International","active":true,"publicationSubtype":{"id":10}},"title":"Use of landsat ETM+ SLC-off segment-based gap-filled imagery for crop type mapping","docAbstract":"<p><span>Failure of the Scan Line Corrector (SLC) on the Landsat ETM+ sensor has had a major impact on many applications that rely on continuous medium resolution imagery to meet their objectives. The United States Department of Agriculture (USDA) Cropland Data Layer (CDL) program uses Landsat imagery as the primary source of data to produce crop-specific maps for 20 states in the USA. A new method has been developed to fill the image gaps resulting from the SLC failure to support the needs of Landsat users who require coincident spectral data, such as for crop type mapping and monitoring. We tested the new gap-filled method for a CDL crop type mapping project in eastern Nebraska. Scan line gaps were simulated on two Landsat 5 images (spring and late summer 2003) and then gap-filled using landscape boundary models, or segment models, that were derived from 1992 and 2002 Landsat images (used in the gap-fill process). Various date combinations of original and gap-filled images were used to derive crop maps using a supervised classification process. Overall kappa values were slightly higher for crop maps derived from SLC-off gap-filled images compared to crop maps derived from the original imagery (0.3–1.3% higher). Although the age of the segment model used to derive the SLC-off gap-filled product did not negatively impact the overall agreement, differences in individual cover type agreement did increase (−0.8%–1.6% using the 2002 segment model to −5.0–5.1% using the 1992 segment model). Classification agreement also decreased for most of the classes as the size of the segment used in the gap-fill process increased.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1080/10106040701207399","issn":"10106049","usgsCitation":"Maxwell, S., and Craig, M., 2008, Use of landsat ETM+ SLC-off segment-based gap-filled imagery for crop type mapping: Geocarto International, v. 23, no. 3, p. 169-179, https://doi.org/10.1080/10106040701207399.","productDescription":"11 p.","startPage":"169","endPage":"179","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":203743,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18895,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/10106040701207399"}],"volume":"23","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a17e4b07f02db6044cd","contributors":{"authors":[{"text":"Maxwell, S.K.","contributorId":36665,"corporation":false,"usgs":true,"family":"Maxwell","given":"S.K.","email":"","affiliations":[],"preferred":false,"id":346003,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Craig, M.E.","contributorId":39107,"corporation":false,"usgs":true,"family":"Craig","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":346004,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70000477,"text":"70000477 - 2008 - Using bioenergetics modeling to estimate consumption of native juvenile salmonids by nonnative northern pike in the Upper Flathead River System, Montana","interactions":[],"lastModifiedDate":"2016-02-22T10:13:17","indexId":"70000477","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Using bioenergetics modeling to estimate consumption of native juvenile salmonids by nonnative northern pike in the Upper Flathead River System, Montana","docAbstract":"<p>Introductions of nonnative northern pike Esox lucius have created recreational fisheries in many waters in the United States and Canada, yet many studies have shown that introduced northern pike may alter the composition and structure of fish communities through predation. We estimated the abundance of nonnative northern pike (2002-2003) and applied food habits data (1999-2003) to estimate their annual consumption of native bull trout Salvelinus confluentus and westslope cutthroat trout Oncorhynchus clarkii lewisi juveniles in the upper Flathead River system, Montana. Population estimates were generally consistent among years and ranged from 1,200 to 1,300 individuals. Westslope cutthroat trout were present in the diet of younger (???600 mm) and older (&gt;600 mm) northern pike during all seasons and bull trout were found only in larger northern pike during all seasons but summer. Bioenergetics modeling estimated that the northern pike population annually consumed a total of 8.0 metric tons (mt) of fish flesh; the highest biomass was composed of cyprinids (4.95 mt) followed by whitefishes Prosopium spp. (1.02 mt), bull trout (0.80 mt), westslope cutthroat trout (0.68 mt), yellow perch Perca flavescens (0.41 mt),1 and other fishes (centrarchids and cottids; 0.14 mt). Numerically, the northern pike population consumed more than 342,000 fish; cyprinids and catostomids comprised approximately 82% of prey fish (278,925), whereas over 13,000 westslope cutthroat trout and nearly 3,500 bull trout were eaten, comprising about 5% of the prey consumed. Our results suggest that predation by introduced northern pike is contributing to the lower abundance of native salmonids in the system and that a possible benefit might accrue to native salmonids by reducing these predatory interactions. ?? Copyright by the American Fisheries Society 2008.</p>","language":"English","publisher":"Taylor & Francis","doi":"10.1577/M07-004.1","usgsCitation":"Muhlfeld, C., Bennett, D., Kirk, S.R., Marotz, B., and Boyer, M., 2008, Using bioenergetics modeling to estimate consumption of native juvenile salmonids by nonnative northern pike in the Upper Flathead River System, Montana: North American Journal of Fisheries Management, v. 28, no. 3, p. 636-648, https://doi.org/10.1577/M07-004.1.","productDescription":"13 p.","startPage":"636","endPage":"648","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":203394,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18891,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M07-004.1"}],"volume":"28","issue":"3","noUsgsAuthors":false,"publicationDate":"2008-06-01","publicationStatus":"PW","scienceBaseUri":"4f4e4adfe4b07f02db6879d0","contributors":{"authors":[{"text":"Muhlfeld, C.C.","contributorId":97850,"corporation":false,"usgs":true,"family":"Muhlfeld","given":"C.C.","affiliations":[],"preferred":false,"id":345995,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bennett, D.H.","contributorId":28698,"corporation":false,"usgs":true,"family":"Bennett","given":"D.H.","email":"","affiliations":[],"preferred":false,"id":345991,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kirk, Steinhorst R.","contributorId":74114,"corporation":false,"usgs":true,"family":"Kirk","given":"Steinhorst","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":345993,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Marotz, B.","contributorId":48684,"corporation":false,"usgs":true,"family":"Marotz","given":"B.","email":"","affiliations":[],"preferred":false,"id":345992,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Boyer, M.","contributorId":80390,"corporation":false,"usgs":true,"family":"Boyer","given":"M.","email":"","affiliations":[],"preferred":false,"id":345994,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70000483,"text":"70000483 - 2008 - Induced dynamic nonlinear ground response at Gamer Valley, California","interactions":[],"lastModifiedDate":"2012-03-08T17:16:33","indexId":"70000483","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Induced dynamic nonlinear ground response at Gamer Valley, California","docAbstract":"We present results from a prototype experiment in which we actively induce, observe, and quantify in situ nonlinear sediment response in the near surface. This experiment was part of a suite of experiments conducted during August 2004 in Garner Valley, California, using a large mobile shaker truck from the Network for Earthquake Engineering Simulation (NEES) facility. We deployed a dense accelerometer array within meters of the mobile shaker truck to replicate a controlled, laboratory-style soil dynamics experiment in order to observe wave-amplitude-dependent sediment properties. Ground motion exceeding 1g acceleration was produced near the shaker truck. The wave field was dominated by Rayleigh surface waves and ground motions were strong enough to produce observable nonlinear changes in wave velocity. We found that as the force load of the shaker increased, the Rayleigh-wave phase velocity decreased by as much as ???30% at the highest frequencies used (up to 30 Hz). Phase velocity dispersion curves were inverted for S-wave velocity as a function of depth using a simple isotropic elastic model to estimate the depth dependence of changes to the velocity structure. The greatest change in velocity occurred nearest the surface, within the upper 4 m. These estimated S-wave velocity values were used with estimates of surface strain to compare with laboratory-based shear modulus reduction measurements from the same site. Our results suggest that it may be possible to characterize nonlinear soil properties in situ using a noninvasive field technique.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120070124","issn":"00371106","usgsCitation":"Lawrence, Z., Bodin, P., Langston, C., Pearce, F., Gomberg, J., Johnson, P., Menq, F., and Brackman, T., 2008, Induced dynamic nonlinear ground response at Gamer Valley, California: Bulletin of the Seismological Society of America, v. 98, no. 3, p. 1412-1428, https://doi.org/10.1785/0120070124.","startPage":"1412","endPage":"1428","costCenters":[],"links":[{"id":476529,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/2152/43261","text":"External Repository"},{"id":203501,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18897,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120070124"}],"volume":"98","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adce4b07f02db68623f","contributors":{"authors":[{"text":"Lawrence, Z.","contributorId":12962,"corporation":false,"usgs":true,"family":"Lawrence","given":"Z.","email":"","affiliations":[],"preferred":false,"id":346006,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bodin, P.","contributorId":29554,"corporation":false,"usgs":true,"family":"Bodin","given":"P.","email":"","affiliations":[],"preferred":false,"id":346007,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Langston, C.A.","contributorId":84882,"corporation":false,"usgs":true,"family":"Langston","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":346010,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pearce, F.","contributorId":73322,"corporation":false,"usgs":true,"family":"Pearce","given":"F.","email":"","affiliations":[],"preferred":false,"id":346009,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gomberg, J.","contributorId":95994,"corporation":false,"usgs":true,"family":"Gomberg","given":"J.","email":"","affiliations":[],"preferred":false,"id":346013,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Johnson, P.A.","contributorId":91220,"corporation":false,"usgs":true,"family":"Johnson","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":346012,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Menq, F.-Y.","contributorId":90024,"corporation":false,"usgs":true,"family":"Menq","given":"F.-Y.","email":"","affiliations":[],"preferred":false,"id":346011,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Brackman, T.","contributorId":70904,"corporation":false,"usgs":true,"family":"Brackman","given":"T.","email":"","affiliations":[],"preferred":false,"id":346008,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70000489,"text":"70000489 - 2008 - Climatically driven loss of calcium in steppe soil as a sink for atmospheric carbon","interactions":[],"lastModifiedDate":"2012-03-08T17:16:33","indexId":"70000489","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1836,"text":"Global Biogeochemical Cycles","active":true,"publicationSubtype":{"id":10}},"title":"Climatically driven loss of calcium in steppe soil as a sink for atmospheric carbon","docAbstract":"During the last several thousand years the semi-arid, cold climate of the Russian steppe formed highly fertile soils rich in organic carbon and calcium (classified as Chernozems in the Russian system). Analysis of archived soil samples collected in Kemannaya Steppe Preserve in 1920, 1947, 1970, and fresh samples collected in 1998 indicated that the native steppe Chernozems, however, lost 17-28 kg m-2 of calcium in the form of carbonates in 1970-1998. Here we demonstrate that the loss of calcium was caused by fundamental shift in the steppe hydrologic balance. Previously unleached soils where precipitation was less than potential evapotranspiration are now being leached due to increased precipitation and, possibly, due to decreased actual evapotranspiration. Because this region receives low levels of acidic deposition, the dissolution of carbonates involves the consumption of atmospheric CO2. Our estimates indicate that this climatically driven terrestrial sink of atmospheric CO2 is ???2.1-7.4 g C m-2 a-1. In addition to the net sink of atmospheric carbon, leaching of pedogenic carbonates significantly amplified seasonal amplitude of CO2 exchange between atmosphere and steppe soil. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Global Biogeochemical Cycles","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007GB003077","issn":"08866236","usgsCitation":"Lapenis, A., Lawrence, G., Bailey, S., Aparin, B., Shiklomanov, A., Speranskaya, N., Torn, M., and Calef, M., 2008, Climatically driven loss of calcium in steppe soil as a sink for atmospheric carbon: Global Biogeochemical Cycles, v. 22, no. 2, https://doi.org/10.1029/2007GB003077.","costCenters":[],"links":[{"id":203620,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18900,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007GB003077"}],"volume":"22","issue":"2","noUsgsAuthors":false,"publicationDate":"2008-05-07","publicationStatus":"PW","scienceBaseUri":"4f4e49d6e4b07f02db5de116","contributors":{"authors":[{"text":"Lapenis, A.G.","contributorId":85701,"corporation":false,"usgs":true,"family":"Lapenis","given":"A.G.","email":"","affiliations":[],"preferred":false,"id":346030,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lawrence, G.B. 0000-0002-8035-2350","orcid":"https://orcid.org/0000-0002-8035-2350","contributorId":76347,"corporation":false,"usgs":true,"family":"Lawrence","given":"G.B.","affiliations":[],"preferred":false,"id":346028,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bailey, S.W.","contributorId":29113,"corporation":false,"usgs":true,"family":"Bailey","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":346024,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Aparin, B.F.","contributorId":24899,"corporation":false,"usgs":true,"family":"Aparin","given":"B.F.","email":"","affiliations":[],"preferred":false,"id":346023,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Shiklomanov, A.I.","contributorId":66394,"corporation":false,"usgs":true,"family":"Shiklomanov","given":"A.I.","email":"","affiliations":[],"preferred":false,"id":346027,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Speranskaya, N.A.","contributorId":65972,"corporation":false,"usgs":true,"family":"Speranskaya","given":"N.A.","email":"","affiliations":[],"preferred":false,"id":346026,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Torn, M.S.","contributorId":35051,"corporation":false,"usgs":true,"family":"Torn","given":"M.S.","affiliations":[],"preferred":false,"id":346025,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Calef, M.","contributorId":82443,"corporation":false,"usgs":true,"family":"Calef","given":"M.","email":"","affiliations":[],"preferred":false,"id":346029,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70000505,"text":"70000505 - 2008 - Drift dynamics of larval pallid sturgeon and shovelnose sturgeon in a natural side channel of the Upper Missouri River, Montana","interactions":[],"lastModifiedDate":"2012-03-08T17:16:36","indexId":"70000505","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Drift dynamics of larval pallid sturgeon and shovelnose sturgeon in a natural side channel of the Upper Missouri River, Montana","docAbstract":"The drift dynamics of larval shovelnose sturgeon Scaphirhynchus platorynchus (1, 2, 6, and 10 d posthatch [dph]) and pallid sturgeon S. albus (1, 2, 5, 9, 11, and 17 dph) were examined in a natural side channel of the Missouri River to quantify the vertical drift location of larvae in the water column, determine the drift velocity of larvae relative to water velocity, and simulate the cumulative distance (km) drifted by larvae during ontogenetic development. Larvae were released at the side-channel inlet and sampled at points 100, 500, 900, and 1,300 m downstream. Larvae drifted primarily near the riverbed, as 58-79% of recaptured shovelnose sturgeon and 63-89% of recaptured pallid sturgeon were sampled in the lower 0.5 m of the water column. The transition from the drifting to the benthic life stage was initiated at 6 dph (mean length, 15.6 mm) for shovelnose sturgeon and at 11-17 dph (mean length, 18.1-20.3 mm) for pallid sturgeon. Across ages, the drift rates of larval shovelnose sturgeon averaged 0.09-0.16 m/s slower than the mean water column velocity. The drift rates of pallid sturgeon were similar to or slightly slower (0.03-0.07 m/s) than the mean water column velocity for 1-11-dph larvae. Conversely, 17-dph larval pallid sturgeon dispersed downstream at a much slower rate (mean, 0.20 m/s slower than the mean water column velocity) owing to their transition to benthic habitats. Drift simulations indicated that the average larval shovelnose sturgeon may drift from 94 to 250 km and the average larval pallid sturgeon may drift from 245 to 530 km, depending on water velocity. Differences in larval drift dynamics between species provide a possible explanation for differences in recruitment between shovelnose sturgeon and pallid sturgeon in the upper Missouri River. ?? Copyright by the American Fisheries Society 2008.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M06-285.1","issn":"02755947","usgsCitation":"Braaten, P., Fuller, D., Holte, L., Lott, R., Viste, W., Brandt, T., and Legare, R., 2008, Drift dynamics of larval pallid sturgeon and shovelnose sturgeon in a natural side channel of the Upper Missouri River, Montana: North American Journal of Fisheries Management, v. 28, no. 3, p. 808-826, https://doi.org/10.1577/M06-285.1.","startPage":"808","endPage":"826","costCenters":[],"links":[{"id":476531,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1577/m06-285.1","text":"Publisher Index Page"},{"id":203479,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18912,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M06-285.1"}],"volume":"28","issue":"3","noUsgsAuthors":false,"publicationDate":"2008-06-01","publicationStatus":"PW","scienceBaseUri":"4f4e4a52e4b07f02db62abcb","contributors":{"authors":[{"text":"Braaten, P.J.","contributorId":98857,"corporation":false,"usgs":true,"family":"Braaten","given":"P.J.","affiliations":[],"preferred":false,"id":346080,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fuller, D.B.","contributorId":74116,"corporation":false,"usgs":false,"family":"Fuller","given":"D.B.","email":"","affiliations":[{"id":5099,"text":"Montana Department of Fish, Wildlife, and Parks","active":true,"usgs":false}],"preferred":false,"id":346078,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Holte, L.D.","contributorId":24073,"corporation":false,"usgs":true,"family":"Holte","given":"L.D.","email":"","affiliations":[],"preferred":false,"id":346075,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lott, R.D.","contributorId":93172,"corporation":false,"usgs":true,"family":"Lott","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":346079,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Viste, W.","contributorId":32656,"corporation":false,"usgs":true,"family":"Viste","given":"W.","email":"","affiliations":[],"preferred":false,"id":346076,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Brandt, T.F.","contributorId":72912,"corporation":false,"usgs":true,"family":"Brandt","given":"T.F.","email":"","affiliations":[],"preferred":false,"id":346077,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Legare, R.G.","contributorId":15323,"corporation":false,"usgs":true,"family":"Legare","given":"R.G.","email":"","affiliations":[],"preferred":false,"id":346074,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70000512,"text":"70000512 - 2008 - Mangrove production and carbon sinks: A revision of global budget estimates","interactions":[],"lastModifiedDate":"2012-03-08T17:16:38","indexId":"70000512","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1836,"text":"Global Biogeochemical Cycles","active":true,"publicationSubtype":{"id":10}},"title":"Mangrove production and carbon sinks: A revision of global budget estimates","docAbstract":"Mangrove forests are highly productive but globally threatened coastal ecosystems, whose role in the carbon budget of the coastal zone has long been debated. Here we provide a comprehensive synthesis of the available data on carbon fluxes in mangrove ecosystems. A reassessment of global mangrove primary production from the literature results in a conservative estimate of ???-218 ?? 72 Tg C a-1. When using the best available estimates of various carbon sinks (organic carbon export, sediment burial, and mineralization), it appears that >50% of the carbon fixed by mangrove vegetation is unaccounted for. This unaccounted carbon sink is conservatively estimated at ??? 112 ?? 85 Tg C a-1, equivalent in magnitude to ??? 30-40% of the global riverine organic carbon input to the coastal zone. Our analysis suggests that mineralization is severely underestimated, and that the majority of carbon export from mangroves to adjacent waters occurs as dissolved inorganic carbon (DIC). CO2 efflux from sediments and creek waters and tidal export of DIC appear to be the major sinks. These processes are quantitatively comparable in magnitude to the unaccounted carbon sink in current budgets, but are not yet adequately constrained with the limited published data available so far. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Global Biogeochemical Cycles","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007GB003052","issn":"08866236","usgsCitation":"Bouillon, S., Borges, A., Castaneda-Moya, E., Diele, K., Dittmar, T., Duke, N., Kristensen, E., Lee, S., Marchand, C., Middelburg, J.J., Rivera-Monroy, V., Smith, T.J., and Twilley, R., 2008, Mangrove production and carbon sinks: A revision of global budget estimates: Global Biogeochemical Cycles, v. 22, no. 2, https://doi.org/10.1029/2007GB003052.","costCenters":[],"links":[{"id":476535,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007gb003052","text":"Publisher Index Page"},{"id":203589,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18917,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007GB003052"}],"volume":"22","issue":"2","noUsgsAuthors":false,"publicationDate":"2008-05-09","publicationStatus":"PW","scienceBaseUri":"4f4e4a82e4b07f02db64ade7","contributors":{"authors":[{"text":"Bouillon, S.","contributorId":12165,"corporation":false,"usgs":true,"family":"Bouillon","given":"S.","affiliations":[],"preferred":false,"id":346104,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Borges, A.V.","contributorId":83648,"corporation":false,"usgs":true,"family":"Borges","given":"A.V.","email":"","affiliations":[],"preferred":false,"id":346112,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Castaneda-Moya, E.","contributorId":7814,"corporation":false,"usgs":true,"family":"Castaneda-Moya","given":"E.","affiliations":[],"preferred":false,"id":346102,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Diele, K.","contributorId":64373,"corporation":false,"usgs":true,"family":"Diele","given":"K.","affiliations":[],"preferred":false,"id":346109,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dittmar, T.","contributorId":27986,"corporation":false,"usgs":true,"family":"Dittmar","given":"T.","affiliations":[],"preferred":false,"id":346107,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Duke, N.C.","contributorId":8597,"corporation":false,"usgs":true,"family":"Duke","given":"N.C.","email":"","affiliations":[],"preferred":false,"id":346103,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Kristensen, E.","contributorId":49907,"corporation":false,"usgs":true,"family":"Kristensen","given":"E.","email":"","affiliations":[],"preferred":false,"id":346108,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Lee, S.-Y.","contributorId":75669,"corporation":false,"usgs":true,"family":"Lee","given":"S.-Y.","email":"","affiliations":[],"preferred":false,"id":346110,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Marchand, C.","contributorId":13728,"corporation":false,"usgs":true,"family":"Marchand","given":"C.","email":"","affiliations":[],"preferred":false,"id":346105,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Middelburg, J. J.","contributorId":105417,"corporation":false,"usgs":true,"family":"Middelburg","given":"J.","middleInitial":"J.","affiliations":[],"preferred":false,"id":346114,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Rivera-Monroy, V. H.","contributorId":83243,"corporation":false,"usgs":true,"family":"Rivera-Monroy","given":"V. H.","affiliations":[],"preferred":false,"id":346111,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Smith, T. J. III","contributorId":24303,"corporation":false,"usgs":true,"family":"Smith","given":"T.","suffix":"III","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":346106,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Twilley, R.R.","contributorId":94647,"corporation":false,"usgs":true,"family":"Twilley","given":"R.R.","email":"","affiliations":[],"preferred":false,"id":346113,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}}
,{"id":70000514,"text":"70000514 - 2008 - Low reservoir ages for the surface ocean from mid-Holocene Florida corals","interactions":[],"lastModifiedDate":"2012-03-08T17:16:38","indexId":"70000514","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3002,"text":"Paleoceanography","active":true,"publicationSubtype":{"id":10}},"title":"Low reservoir ages for the surface ocean from mid-Holocene Florida corals","docAbstract":"The 14C reservoir age of the surface ocean was determined for two Holocene periods (4908-4955 and 3008-3066 calendar (cal) B.P.) using U/Th-dated corals from Biscayne National Park, Florida, United States. We found that the average reservoir ages for these two time periods (294 ?? 33 and 291 ?? 27 years, respectively) were lower than the average value between A.D. 1600 and 1900 (390 ?? 60 years) from corals. It appears that the surface ocean was closer to isotopic equilibrium with CO2 in the atmosphere during these two time periods than it was during recent times. Seasonal ??18O measurements from the younger coral are similar to modern values, suggesting that mixing with open ocean waters was indeed occurring during this coral's lifetime. Likely explanations for the lower reservoir age include increased stratification of the surface ocean or increased ??14C values of subsurface waters that mix into the surface. Our results imply that a more correct reservoir age correction for radiocarbon measurements of marine samples in this location from the time periods ???3040 and ???4930 cal years B.P. is ???292 ?? 30 years, less than the canonical value of 404 ?? 20 years. Copyright 2008 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Paleoceanography","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2007PA001527","issn":"08838305","usgsCitation":"Druffel, E., Robinson, L., Griffin, S., Halley, R.B., Southon, J.R., and Adkins, J., 2008, Low reservoir ages for the surface ocean from mid-Holocene Florida corals: Paleoceanography, v. 23, no. 2, https://doi.org/10.1029/2007PA001527.","costCenters":[],"links":[{"id":476633,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007pa001527","text":"Publisher Index Page"},{"id":203333,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18918,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2007PA001527"}],"volume":"23","issue":"2","noUsgsAuthors":false,"publicationDate":"2008-05-13","publicationStatus":"PW","scienceBaseUri":"4f4e4a6fe4b07f02db640c0d","contributors":{"authors":[{"text":"Druffel, E.R.M.","contributorId":7398,"corporation":false,"usgs":true,"family":"Druffel","given":"E.R.M.","email":"","affiliations":[],"preferred":false,"id":346115,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robinson, L.F.","contributorId":75256,"corporation":false,"usgs":true,"family":"Robinson","given":"L.F.","email":"","affiliations":[],"preferred":false,"id":346118,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Griffin, S.","contributorId":56357,"corporation":false,"usgs":true,"family":"Griffin","given":"S.","email":"","affiliations":[],"preferred":false,"id":346117,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Halley, R. B.","contributorId":87941,"corporation":false,"usgs":true,"family":"Halley","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":346119,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Southon, J. R.","contributorId":24895,"corporation":false,"usgs":true,"family":"Southon","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":346116,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Adkins, J.F.","contributorId":90857,"corporation":false,"usgs":true,"family":"Adkins","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":346120,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70000517,"text":"70000517 - 2008 - Evaluating the effects of historical land cover change on summertime weather and climate in New Jersey: Land cover and surface energy budget changes","interactions":[],"lastModifiedDate":"2022-05-18T16:55:15.838611","indexId":"70000517","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":7442,"text":"Journal of Geophysical Research-Atmospheres","active":false,"publicationSubtype":{"id":10}},"title":"Evaluating the effects of historical land cover change on summertime weather and climate in New Jersey: Land cover and surface energy budget changes","docAbstract":"The 19th-century agrarian landscape of New Jersey (NJ) and the surrounding region has been extensively transformed to the present-day land cover by urbanization, reforestation, and localized areas of deforestation. This study used a mesoscale atmospheric numerical model to investigate the sensitivity of the warm season climate of NJ to these land cover changes. Reconstructed 1880s-era and present-day land cover data sets were used as surface boundary conditions for a set of simulations performed with the Regional Atmospheric Modeling System (RAMS). Three-member ensembles with historical and present-day land cover were compared to examine the sensitivity of surface air and dew point temperatures, rainfall, and the individual components of the surface energy budget to these land cover changes. Mean temperatures for the present-day landscape were 0.3-0.6??C warmer than for the historical landscape over a considerable portion of NJ and the surrounding region, with daily maximum temperatures at least 1.0??C warmer over some of the highly urbanized locations. Reforested regions, however, were slightly cooler. Dew point temperatures decreased by 0.3-0.6??C, suggesting drier, less humid near-surface air for the present-day landscape. Surface warming was generally associated with repartitioning of net radiation from latent to sensible heat flux, and conversely for cooling. While urbanization was accompanied by strong surface albedo decreases and increases in net shortwave radiation, reforestation and potential changes in forest composition have generally increased albedos and also enhanced landscape heterogeneity. The increased deciduousness of forests may have further reduced net downward longwave radiation. Copyright 2008 by the American Geophysical Union.","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2007JD008514","usgsCitation":"Wichansky, P.S., Steyaert, L.T., Walko, R.L., and Waever, C.P., 2008, Evaluating the effects of historical land cover change on summertime weather and climate in New Jersey: Land cover and surface energy budget changes: Journal of Geophysical Research-Atmospheres, v. 113, no. 10, D10107, 25 p., https://doi.org/10.1029/2007JD008514.","productDescription":"D10107, 25 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":476538,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2007jd008514","text":"Publisher Index Page"},{"id":203627,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New 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,{"id":70000526,"text":"70000526 - 2008 - Rock magnetic characterization of faulted sediments with associated magnetic anomalies in the Albuquerque Basin, Rio Grande rift, New Mexico","interactions":[],"lastModifiedDate":"2012-03-08T17:16:38","indexId":"70000526","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Rock magnetic characterization of faulted sediments with associated magnetic anomalies in the Albuquerque Basin, Rio Grande rift, New Mexico","docAbstract":"Variations in rock magnetic properties are responsible for the many linear, short-wavelength, low-amplitude magnetic anomalies that are spatially associated with faults that cut Neogene basin sediments in the Rio Grande rift, including the San Ysidro normal fault, which is well exposed in the northern part of the Albuquerque Basin. Magnetic-susceptibility measurements from 310 sites distributed through a 1200-m-thick composite section of rift-filling sediments of the Santa Fe Group and prerift Eocene and Cretaceous sedimentary rocks document large variations of magnetic properties juxtaposed by the San Ysidro fault. Mean volume magnetic susceptibilities generally increase upsection through eight map units: from 1.7 to 2.2E-4 in the prerift Eocene and Cretaceous rocks to 9.9E-4-1.2E-3 in three members of the Miocene Zia Formation of the Santa Fe Group to 1.5E-3-3.5E-3 in three members of the Miocene-Pleistocene Arroyo Ojito Formation of the Santa Fe Group. Rock magnetic measurements and petrography indicate that the amount of detrital magnetite and its variable oxidation to maghemite and hematite within the Santa Fe Group sediments are the predominant controls of their magnetic property variations. Magnetic susceptibility increases progressively with sediment grain size within the members of the Arroyo Ojito Formation (deposited in fluvial environments) but within members of the Zia Formation (deposited in mostly eolian environments) reaches highest values in fine to medium sands. Partial oxidation of detrital magnetite is spatially associated with calcite cementation in the Santa Fe Group. Both oxidation and cementation probably reflect past flow of groundwater through permeable zones. Magnetic models for geologic cross sections that incorporate mean magnetic susceptibilities for the different stratigraphic units mimic the aeromagnetic profiles across the San Ysidro fault and demonstrate that the stratigraphic level of dominant magnetic contrast changes with different exposure levels into the fault. These data indicate that tectonic juxtaposition of primary variations of magnetic properties of strata across the fault is the source of the associated magnetic anomaly. This study indicates that magnetic anomalies over faults and folds can be generated by sediments (1) deposited within tectonic basins having volcanic or basement source areas rich in magnetite, (2) having depositional environments with sufficient but varying energy to transport dense magnetic minerals and cause stratigraphic changes of magnetic properties, and (3) having magnetic minerals preserved owing to their youth or nonreactive geochemical environments. ?? 2007 Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geological Society of America Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/B26213.1","issn":"00167606","usgsCitation":"Hudson, M., Grauch, V.J., and Minor, S., 2008, Rock magnetic characterization of faulted sediments with associated magnetic anomalies in the Albuquerque Basin, Rio Grande rift, New Mexico: Geological Society of America Bulletin, v. 120, no. 5-6, p. 641-658, https://doi.org/10.1130/B26213.1.","startPage":"641","endPage":"658","costCenters":[],"links":[{"id":203673,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18927,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/B26213.1"}],"volume":"120","issue":"5-6","noUsgsAuthors":false,"publicationDate":"2008-04-30","publicationStatus":"PW","scienceBaseUri":"4f4e4a0fe4b07f02db5fea04","contributors":{"authors":[{"text":"Hudson, M.R.","contributorId":68317,"corporation":false,"usgs":true,"family":"Hudson","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":346192,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grauch, V. J. S. 0000-0002-0761-3489","orcid":"https://orcid.org/0000-0002-0761-3489","contributorId":34125,"corporation":false,"usgs":true,"family":"Grauch","given":"V.","email":"","middleInitial":"J. S.","affiliations":[],"preferred":false,"id":346190,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Minor, S.A.","contributorId":65047,"corporation":false,"usgs":true,"family":"Minor","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":346191,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70000533,"text":"70000533 - 2008 - Determining Titan's spin state from Cassini RADAR images","interactions":[],"lastModifiedDate":"2018-12-05T16:47:25","indexId":"70000533","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":914,"text":"Astronomical Journal","active":true,"publicationSubtype":{"id":10}},"title":"Determining Titan's spin state from Cassini RADAR images","docAbstract":"<p>For some 19 areas of Titan's surface, the Cassini RADAR instrument has obtained synthetic aperture radar (SAR) images during two different flybys. The time interval between flybys varies from several weeks to two years. We have used the apparent misregistration (by 10-30 km) of features between separate flybys to construct a refined model of Titan's spin state, estimating six parameters: north pole right ascension and declination, spin rate, and these quantities' first time derivatives We determine a pole location with right ascension of 39.48 degrees and declination of 83.43 degrees corresponding to a 0.3 degree obliquity. We determine the spin rate to be 22.5781 deg day -1 or 0.001 deg day-1 faster than the synchronous spin rate. Our estimated corrections to the pole and spin rate exceed their corresponding standard errors by factors of 80 and 8, respectively. We also found that the rate of change in the pole right ascension is -30 deg century-1, ten times faster than right ascension rate of change for the orbit normal. The spin rate is increasing at a rate of 0.05 deg day -1 per century. We observed no significant change in pole declination over the period for which we have data. Applying our pole correction reduces the feature misregistration from tens of km to 3 km. Applying the spin rate and derivative corrections further reduces the misregistration to 1.2 km.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Astronomical Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Astronomical Society","doi":"10.1088/0004-6256/135/5/1669","issn":"00046256","usgsCitation":"Stiles, B., Kirk, R.L., Lorenz, R.D., Hensley, S., Lee, E., Ostro, S., Allison, M., Callahan, P., Gim, Y., Iess, L., Marmo, D., Hamilton, G., Johnson, W., and West, R., 2008, Determining Titan's spin state from Cassini RADAR images: Astronomical Journal, v. 135, no. 5, p. 1669-1680, https://doi.org/10.1088/0004-6256/135/5/1669.","productDescription":"12 p.","startPage":"1669","endPage":"1680","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":203644,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Titan","volume":"135","issue":"5","noUsgsAuthors":false,"publicationDate":"2008-03-26","publicationStatus":"PW","scienceBaseUri":"4f4e4aa8e4b07f02db667369","contributors":{"authors":[{"text":"Stiles, B.W.","contributorId":43900,"corporation":false,"usgs":true,"family":"Stiles","given":"B.W.","email":"","affiliations":[],"preferred":false,"id":346216,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kirk, Randolph L. 0000-0003-0842-9226 rkirk@usgs.gov","orcid":"https://orcid.org/0000-0003-0842-9226","contributorId":2765,"corporation":false,"usgs":true,"family":"Kirk","given":"Randolph","email":"rkirk@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":346222,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lorenz, R. D.","contributorId":90441,"corporation":false,"usgs":false,"family":"Lorenz","given":"R.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":346221,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hensley, S.","contributorId":6175,"corporation":false,"usgs":true,"family":"Hensley","given":"S.","email":"","affiliations":[],"preferred":false,"id":346212,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lee, E.","contributorId":47716,"corporation":false,"usgs":true,"family":"Lee","given":"E.","affiliations":[],"preferred":false,"id":346218,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ostro, S.J.","contributorId":45814,"corporation":false,"usgs":true,"family":"Ostro","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":346217,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Allison, M.D.","contributorId":76056,"corporation":false,"usgs":true,"family":"Allison","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":346220,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Callahan, P.S.","contributorId":43478,"corporation":false,"usgs":true,"family":"Callahan","given":"P.S.","email":"","affiliations":[],"preferred":false,"id":346215,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Gim, Y.","contributorId":14934,"corporation":false,"usgs":true,"family":"Gim","given":"Y.","affiliations":[],"preferred":false,"id":346213,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Iess, L.","contributorId":105837,"corporation":false,"usgs":true,"family":"Iess","given":"L.","affiliations":[],"preferred":false,"id":346224,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Marmo, Del","contributorId":63929,"corporation":false,"usgs":true,"family":"Marmo","given":"Del","email":"","affiliations":[],"preferred":false,"id":346219,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Hamilton, G.","contributorId":108236,"corporation":false,"usgs":true,"family":"Hamilton","given":"G.","email":"","affiliations":[],"preferred":false,"id":346225,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Johnson, W.T.K.","contributorId":27174,"corporation":false,"usgs":true,"family":"Johnson","given":"W.T.K.","email":"","affiliations":[],"preferred":false,"id":346214,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"West, R.D.","contributorId":103399,"corporation":false,"usgs":true,"family":"West","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":346223,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}}
,{"id":70000520,"text":"70000520 - 2008 - Hydrocarbon lakes on Titan: Distribution and interaction with a porous regolith","interactions":[],"lastModifiedDate":"2018-12-05T16:39:34","indexId":"70000520","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","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":"Hydrocarbon lakes on Titan: Distribution and interaction with a porous regolith","docAbstract":"<p><span>Synthetic Aperture Radar (SAR) images of Titan's north polar region reveal quasi‐circular to complex features which are interpreted to be liquid hydrocarbon lakes. We investigate methane transport in Titan's hydrologic cycle using the global distribution of lake features. As of May 2007, the SAR data set covers ∼22% of the surface and indicates multiple lake morphologies which are correlated across the polar region. Lakes are limited to latitudes above 55°N and vary from &lt;10 to more than 100,000 km</span><sup>2</sup><span>. The size and location of lakes provide constraints on parameters associated with subsurface transport. Using porous media properties inferred from Huygens probe observations, timescales for flow into and out of observed lakes are shown to be in the tens of years, similar to seasonal cycles. Derived timescales are compared to the time between collocated SAR observations in order to consider the role of subsurface transport in Titan's hydrologic cycle.</span></p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2008GL033409","issn":"00948276","usgsCitation":"Hayes, A., Aharonson, O., Callahan, P., Elachi, C., Gim, Y., Kirk, R.L., Lewis, K., Lopes, R., Lorenz, R., Lunine, J., Mitchell, K., Mitri, G., Stofan, E., and Wall, S., 2008, Hydrocarbon lakes on Titan: Distribution and interaction with a porous regolith: Geophysical Research Letters, v. 35, no. 9, 6 p., https://doi.org/10.1029/2008GL033409.","productDescription":"6 p.","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":476544,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2008gl033409","text":"Publisher Index Page"},{"id":203667,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Titan","volume":"35","issue":"9","noUsgsAuthors":false,"publicationDate":"2008-05-14","publicationStatus":"PW","scienceBaseUri":"4f4e4a50e4b07f02db6292fb","contributors":{"authors":[{"text":"Hayes, A.","contributorId":26415,"corporation":false,"usgs":true,"family":"Hayes","given":"A.","affiliations":[],"preferred":false,"id":346167,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aharonson, O.","contributorId":105030,"corporation":false,"usgs":false,"family":"Aharonson","given":"O.","affiliations":[],"preferred":false,"id":346177,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Callahan, P.","contributorId":22889,"corporation":false,"usgs":true,"family":"Callahan","given":"P.","email":"","affiliations":[],"preferred":false,"id":346166,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Elachi, C.","contributorId":104606,"corporation":false,"usgs":false,"family":"Elachi","given":"C.","affiliations":[],"preferred":false,"id":346176,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gim, Y.","contributorId":14934,"corporation":false,"usgs":true,"family":"Gim","given":"Y.","affiliations":[],"preferred":false,"id":346165,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kirk, Randolph L. 0000-0003-0842-9226 rkirk@usgs.gov","orcid":"https://orcid.org/0000-0003-0842-9226","contributorId":2765,"corporation":false,"usgs":true,"family":"Kirk","given":"Randolph","email":"rkirk@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":346172,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lewis, K.","contributorId":74861,"corporation":false,"usgs":true,"family":"Lewis","given":"K.","affiliations":[],"preferred":false,"id":346173,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Lopes, R.","contributorId":61554,"corporation":false,"usgs":true,"family":"Lopes","given":"R.","affiliations":[],"preferred":false,"id":346171,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Lorenz, R.","contributorId":49503,"corporation":false,"usgs":true,"family":"Lorenz","given":"R.","affiliations":[],"preferred":false,"id":346170,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Lunine, J.","contributorId":42335,"corporation":false,"usgs":true,"family":"Lunine","given":"J.","affiliations":[],"preferred":false,"id":346169,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Mitchell, Ken","contributorId":8211,"corporation":false,"usgs":true,"family":"Mitchell","given":"Ken","email":"","affiliations":[],"preferred":false,"id":346164,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Mitri, Giuseppe","contributorId":35052,"corporation":false,"usgs":false,"family":"Mitri","given":"Giuseppe","email":"","affiliations":[],"preferred":false,"id":346168,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Stofan, E.","contributorId":99268,"corporation":false,"usgs":true,"family":"Stofan","given":"E.","affiliations":[],"preferred":false,"id":346174,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Wall, S.","contributorId":103774,"corporation":false,"usgs":true,"family":"Wall","given":"S.","affiliations":[],"preferred":false,"id":346175,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}}
,{"id":70000496,"text":"70000496 - 2008 - Experimental measurements of vapor-liquid equilibria of the H2O + CO2 + CH4 ternary system","interactions":[],"lastModifiedDate":"2012-03-08T17:16:37","indexId":"70000496","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2209,"text":"Journal of Chemical and Engineering Data","active":true,"publicationSubtype":{"id":10}},"title":"Experimental measurements of vapor-liquid equilibria of the H2O + CO2 + CH4 ternary system","docAbstract":"Reported are the experimental measurements on vapor-liquid equilibria in the H2O + CO2 + CH4 ternary system at temperatures from (324 to 375) K and pressures from (10 to 50) MPa. The results indicate that the CH4 solubility in the ternary mixture is about 10 % to 40 % more than that calculated by interpolation from the Henry's law constants of the binary system, H2O + CH4, and the solubility of CO2 is 6 % to 20 % more than what is calculated by the interpolation from the Henry's law constants of the binary mixture, H 2O + CO2. ?? 2008 American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Chemical and Engineering Data","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/je700473e","issn":"00219568","usgsCitation":"Qin, J., Rosenbauer, R., and Duan, Z., 2008, Experimental measurements of vapor-liquid equilibria of the H2O + CO2 + CH4 ternary system: Journal of Chemical and Engineering Data, v. 53, no. 6, p. 1246-1249, https://doi.org/10.1021/je700473e.","startPage":"1246","endPage":"1249","costCenters":[],"links":[{"id":203580,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18906,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/je700473e"}],"volume":"53","issue":"6","noUsgsAuthors":false,"publicationDate":"2008-05-16","publicationStatus":"PW","scienceBaseUri":"4f4e49fbe4b07f02db5f460c","contributors":{"authors":[{"text":"Qin, J.","contributorId":88068,"corporation":false,"usgs":true,"family":"Qin","given":"J.","email":"","affiliations":[],"preferred":false,"id":346054,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosenbauer, R.J.","contributorId":37320,"corporation":false,"usgs":true,"family":"Rosenbauer","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":346052,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Duan, Zhenhao","contributorId":71302,"corporation":false,"usgs":true,"family":"Duan","given":"Zhenhao","email":"","affiliations":[],"preferred":false,"id":346053,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70000479,"text":"70000479 - 2008 - Paleoseismic targets, seismic hazard, and urban areas in the Central and Eastern United States","interactions":[],"lastModifiedDate":"2012-03-08T17:16:35","indexId":"70000479","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Paleoseismic targets, seismic hazard, and urban areas in the Central and Eastern United States","docAbstract":"Published geologic information from the central and eastern United States identifies 83 faults, groups of sand blows, named seismic zones, and other geological features as known or suspected products of Quaternary tectonic faulting. About one fifth of the features are known to contain faulted Quaternary materials or seismically induced liquefaction phenomena, but the origin and associated seismic hazard of most of the other features remain uncertain. Most of the features are in or near large urban areas. The largest cluster of features is in the Boston-Washington urban corridor (2005 estimated population: 50 million). The proximity of most features to populous areas identifies paleoseismic targets with potential to impact urban-hazard estimates.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120060007","issn":"00371106","usgsCitation":"Wheeler, R.L., 2008, Paleoseismic targets, seismic hazard, and urban areas in the Central and Eastern United States: Bulletin of the Seismological Society of America, v. 98, no. 3, p. 1572-1580, https://doi.org/10.1785/0120060007.","startPage":"1572","endPage":"1580","costCenters":[],"links":[{"id":203763,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18893,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120060007"}],"volume":"98","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae3e4b07f02db689306","contributors":{"authors":[{"text":"Wheeler, R. L.","contributorId":34916,"corporation":false,"usgs":true,"family":"Wheeler","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":345998,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70000482,"text":"70000482 - 2008 - Analytical and numerical analyses of an unconfined aquifer test considering unsaturated zone characteristics","interactions":[],"lastModifiedDate":"2012-03-08T17:16:33","indexId":"70000482","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Analytical and numerical analyses of an unconfined aquifer test considering unsaturated zone characteristics","docAbstract":"A 7-d, constant rate aquifer test conducted by University of Waterloo researchers at Canadian Forces Base Borden in Ontario, Canada, is useful for advancing understanding of fluid flow processes in response to pumping from an unconfined aquifer. Measured data include not only drawdown in the saturated zone but also volumetric soil moisture measured at various times and distances from the pumped well. Analytical analyses were conducted with the model published in 2001 by Moench and colleagues, which allows for gradual drainage but does not include unsaturated zone characteristics, and the model published in 2006 by Mathias and Butler, which assumes that moisture retention and relative hydraulic conductivity (RHC) in the unsaturated zone are exponential functions of pressure head. Parameters estimated with either model yield good matches between measured and simulated drawdowns in piezometers. Numerical analyses were conducted with two versions of VS2DT: one that uses traditional Brooks and Corey functional relations and one that uses a RHC function introduced in 2001 by Assouline that includes an additional parameter that accounts for soil structure and texture. The analytical model of Mathias and Butler and numerical model of VS2DT with the Assouline model both show that the RHC function must contain a fitting parameter that is different from that used in the moisture retention function. Results show the influence of field-scale heterogeneity and suggest that the RHC at the Borden site declines more rapidly with elevation above the top of the capillary fringe than would be expected if the parameters were to reflect local- or core-scale soil structure and texture.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water Resources Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2006WR005736","issn":"00431397","usgsCitation":"Moench, A., 2008, Analytical and numerical analyses of an unconfined aquifer test considering unsaturated zone characteristics: Water Resources Research, v. 44, no. 6, https://doi.org/10.1029/2006WR005736.","costCenters":[],"links":[{"id":203785,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18896,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006WR005736"}],"volume":"44","issue":"6","noUsgsAuthors":false,"publicationDate":"2008-06-11","publicationStatus":"PW","scienceBaseUri":"4f4e4acee4b07f02db67f421","contributors":{"authors":[{"text":"Moench, A.F.","contributorId":91495,"corporation":false,"usgs":true,"family":"Moench","given":"A.F.","email":"","affiliations":[],"preferred":false,"id":346005,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70000525,"text":"70000525 - 2008 - Contaminant levels in rainbow trout, Oncorhynchus mykiss, and their diets from Missouri coldwater hatcheries","interactions":[],"lastModifiedDate":"2012-03-08T17:16:38","indexId":"70000525","displayToPublicDate":"2010-09-28T23:09:21","publicationYear":"2008","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1103,"text":"Bulletin of Environmental Contamination and Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Contaminant levels in rainbow trout, Oncorhynchus mykiss, and their diets from Missouri coldwater hatcheries","docAbstract":"Organochlorine and metal contaminants often occur in commercial fish diets and can accumulate in fish to levels of concern for human consumption. Contaminant levels were investigated in diet and rainbow trout fillets from Missouri coldwater hatcheries used in 'put and take' fisheries. The average fillet:diet ratio was <0.1 for lead and cadmium, 0.4-0.6 for organochlorine compounds, and about 0.8 for mercury. Trout fillet concentrations for all contaminants were low (<50 ng/g) and below Missouri's fish consumption advisory trigger levels. ?? 2008 Springer Science+Business Media, LLC.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Environmental Contamination and Toxicology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00128-008-9374-0","issn":"00074861","usgsCitation":"McKee, M., Kromrey, G., May, T., and Orazio, C., 2008, Contaminant levels in rainbow trout, Oncorhynchus mykiss, and their diets from Missouri coldwater hatcheries: Bulletin of Environmental Contamination and Toxicology, v. 80, no. 5, p. 450-454, https://doi.org/10.1007/s00128-008-9374-0.","startPage":"450","endPage":"454","costCenters":[],"links":[{"id":203330,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18926,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00128-008-9374-0"}],"volume":"80","issue":"5","noUsgsAuthors":false,"publicationDate":"2008-04-19","publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699dc3","contributors":{"authors":[{"text":"McKee, M.J.","contributorId":53365,"corporation":false,"usgs":true,"family":"McKee","given":"M.J.","affiliations":[],"preferred":false,"id":346187,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kromrey, G.B.","contributorId":32272,"corporation":false,"usgs":true,"family":"Kromrey","given":"G.B.","email":"","affiliations":[],"preferred":false,"id":346186,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"May, T.W.","contributorId":75878,"corporation":false,"usgs":true,"family":"May","given":"T.W.","email":"","affiliations":[],"preferred":false,"id":346189,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Orazio, C.E.","contributorId":68440,"corporation":false,"usgs":true,"family":"Orazio","given":"C.E.","email":"","affiliations":[],"preferred":false,"id":346188,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
]}