Coral reefs represent one of the most irregular substrates in the marine environment. This roughness or topographic complexity is an important structural characteristic of reef habitats that affects a number of ecological and environmental attributes, including species diversity and water circulation. Little is known about the range of topographic complexity exhibited within a reef or between different reef systems. The objective of this study was to quantify topographic complexity for a 5-km x 5-km reefscape along the northern Florida Keys reef tract, over spatial scales ranging from meters to hundreds of meters. The underlying dataset was a 1-m spatial resolution, digital elevation model constructed from lidar measurements. Topographic complexity was quantified using a fractal algorithm, which provided a multi-scale characterization of reef roughness. The computed fractal dimensions (D) are a measure of substrate irregularity and are bounded between values of 2 and 3. Spatial patterns in D were positively correlated with known reef zonation in the area. Landward regions of the study site contain relatively smooth (D ≈ 2.35) flat-topped patch reefs, which give way to rougher (D ≈ 2.5), deep, knoll-shaped patch reefs. The seaward boundary contains a mixture of substrate features, including discontinuous shelf-edge reefs, and exhibits a corresponding range of roughness values (2.28 ≤ D ≤ 2.61).
","language":"English","publisher":"BioOne","doi":"10.2112/SI53-002.1","issn":"07490208","usgsCitation":"Zawada, D., and Brock, J.C., 2009, A multiscale analysis of coral reef topographic complexity using lidar-derived bathymetry: Journal of Coastal Research, no. Special issue 53, p. 6-15, https://doi.org/10.2112/SI53-002.1.","productDescription":"10 p.","startPage":"6","endPage":"15","numberOfPages":"10","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":243227,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"Special issue 53","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e48fe4b0c8380cd46715","contributors":{"authors":[{"text":"Zawada, D.G.","contributorId":8938,"corporation":false,"usgs":true,"family":"Zawada","given":"D.G.","email":"","affiliations":[],"preferred":false,"id":449627,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brock, J. C.","contributorId":36095,"corporation":false,"usgs":true,"family":"Brock","given":"J.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":449628,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035182,"text":"70035182 - 2009 - Spatial habitat use patterns of sea otters in coastal washington","interactions":[],"lastModifiedDate":"2012-03-12T17:21:52","indexId":"70035182","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2373,"text":"Journal of Mammalogy","onlineIssn":"1545-1542","printIssn":"0022-2372","active":true,"publicationSubtype":{"id":10}},"title":"Spatial habitat use patterns of sea otters in coastal washington","docAbstract":"Sea otter (Enhydra lutris kenyoni) movements, home range, and activity budgets were described from data collected during very-high-frequency radiotelemetry studies of 75 individuals on the outer coast of Washington State between 1992 and 1999. Sea otters were located at least once per week from 22 accessible sites along the coast. Over the 7-year study period, range expansion occurred from the core range north and east into the Strait of Juan de Fuca (SJF) as well as southward on the outer coast. Forty-three percent of the sea otters moved into the SJF at least once, most often in winter, using habitat that had not been occupied by sea otters since their extirpation 100 years ago. All sea otters spent portions of their time in the vicinity of Cape Alava, and many animals demonstrated consistent periodic seasonal shifts between specific portions of the coastline over several years. Ninety-five percent annual linear home ranges differed between sex and age classes. Adult males used the largest amount of coastline (50 km ?? 9 5D) and subadult females used the least (24 ?? 9 km). Both adult males and females demonstrated high seasonal periodicity in range use in summer and winter. Twenty-four-hour time budgets in the core portion of the range revealed on average sea otters spent 41% ?? 14% SD of the time foraging and 45% ?? 13% of the time resting (age and sex classes pooled). Adult and subadult female sea otters were most frequently found resting and foraging close to shore (< 1,000 m) and in shallow water (0-10 m), whereas adult and subadult males rested and foraged > 1,000 m offshore and at depths between 10 and 30 m. Given current rates of population growth and observed mobility, sea otters in Washington have high potential for range expansion into unoccupied habitat such as Grays Harbor, Willapa Bay, the SJF, or along Vancouver Island. ?? 2009 American Society of Mammalogists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Mammalogy","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1644/08-MAMM-A-338.1","issn":"00222372","usgsCitation":"Laidre, K., Jameson, R., Gurarie, E., Jeffries, S., and Allen, H., 2009, Spatial habitat use patterns of sea otters in coastal washington: Journal of Mammalogy, v. 90, no. 4, p. 906-917, https://doi.org/10.1644/08-MAMM-A-338.1.","startPage":"906","endPage":"917","numberOfPages":"12","costCenters":[],"links":[{"id":476182,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1644/08-mamm-a-338.1","text":"Publisher Index Page"},{"id":215422,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1644/08-MAMM-A-338.1"},{"id":243228,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"90","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b947fe4b08c986b31ab16","contributors":{"authors":[{"text":"Laidre, K.L.","contributorId":88319,"corporation":false,"usgs":true,"family":"Laidre","given":"K.L.","email":"","affiliations":[],"preferred":false,"id":449632,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jameson, R.J.","contributorId":56581,"corporation":false,"usgs":true,"family":"Jameson","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":449630,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gurarie, E.","contributorId":103487,"corporation":false,"usgs":true,"family":"Gurarie","given":"E.","affiliations":[],"preferred":false,"id":449633,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jeffries, S.J.","contributorId":26262,"corporation":false,"usgs":true,"family":"Jeffries","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":449629,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Allen, H.","contributorId":59209,"corporation":false,"usgs":true,"family":"Allen","given":"H.","email":"","affiliations":[],"preferred":false,"id":449631,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035191,"text":"70035191 - 2009 - Age, geochemical composition, and distribution of Oligocene ignimbrites in the northern Sierra Nevada, California: Implications for landscape morphology, elevation, and drainage divide geography of the Nevadaplano","interactions":[],"lastModifiedDate":"2017-10-25T16:20:20","indexId":"70035191","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2020,"text":"International Geology Review","active":true,"publicationSubtype":{"id":10}},"title":"Age, geochemical composition, and distribution of Oligocene ignimbrites in the northern Sierra Nevada, California: Implications for landscape morphology, elevation, and drainage divide geography of the Nevadaplano","docAbstract":"To gain a better understanding of the topographic and landscape evolution of the Cenozoic Sierra Nevada and Basin and Range, we combine geochemical and isotopic age correlations with palaeoaltimetry data from widely distributed ignimbrites in the northern Sierra Nevada, California. A sequence of Oligocene rhyolitic ignimbrites is preserved across the modern crest of the range and into the western foothills. Using trace and rare earth element geochemical analyses of volcanic glass, these deposits have been correlated to ignimbrites described and isotopically dated in the Walker Lane fault zone and in central Nevada (Henry et al., 2004, Geologic map of the Dogskin mountain quadrangle; Washoe County, Nevada; Faulds et al., 2005, Geology, v. 33, p. 505–508). Ignimbrite deposits were sampled within the northern Sierra Nevada and western Nevada, and four distinct geochemical compositions were identified. The majority of samples from within the northern Sierra Nevada have compositions similar to the tuffs of Axehandle Canyon or Rattlesnake Canyon, both likely sourced from the same caldera complex in either the Clan Alpine Mountains or the Stillwater Range, or to the tuff of Campbell Creek, sourced from the Desatoya Mountains caldera. New 40Ar/39Ar age determinations from these samples of 31.2, 30.9, and 28.7 Ma, respectively, support these correlations. Based on an Oligocene palinspastic reconstruction of the region, our results show that ignimbrites travelled over 200 km from their source calderas across what is now the crest of the Sierra Nevada, and that during that time, no drainage divide existed between the ignimbrite source calderas in central Nevada and sample locations 200 km to the west. Palaeoaltimetry data from Sierra Nevada ignimbrites, based on the hydrogen isotopic composition of hydration water in glass, reflect the effect of a steep western slope on precipitation and indicate that the area had elevations similar to the present-day range. These combined results suggest that source calderas were likely located in a region of high elevation to the east of the Oligocene Sierra Nevada, which had a steep western slope that allowed for the large extent and broad distribution of the ignimbrites.
","language":"English","publisher":"Taylor & Francis","doi":"10.1080/00206810902880370","issn":"00206814","usgsCitation":"Cassel, E.J., Calvert, A.T., and Graham, S.A., 2009, Age, geochemical composition, and distribution of Oligocene ignimbrites in the northern Sierra Nevada, California: Implications for landscape morphology, elevation, and drainage divide geography of the Nevadaplano: International Geology Review, v. 51, no. 7-8, p. 723-742, https://doi.org/10.1080/00206810902880370.","productDescription":"20 p.","startPage":"723","endPage":"742","numberOfPages":"20","ipdsId":"IP-012618","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":242861,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215089,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/00206810902880370"}],"volume":"51","issue":"7-8","noUsgsAuthors":false,"publicationDate":"2009-07-08","publicationStatus":"PW","scienceBaseUri":"5059e8f6e4b0c8380cd47fef","contributors":{"authors":[{"text":"Cassel, Elizabeth J.","contributorId":198355,"corporation":false,"usgs":false,"family":"Cassel","given":"Elizabeth","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":449662,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Calvert, Andrew T. 0000-0001-5237-2218 acalvert@usgs.gov","orcid":"https://orcid.org/0000-0001-5237-2218","contributorId":2694,"corporation":false,"usgs":true,"family":"Calvert","given":"Andrew","email":"acalvert@usgs.gov","middleInitial":"T.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":449661,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Graham, Stephan A.","contributorId":45902,"corporation":false,"usgs":true,"family":"Graham","given":"Stephan","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":449663,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035199,"text":"70035199 - 2009 - Sedimentary constraints on late Quaternary lake-level fluctuations at Bear Lake, Utah and Idaho","interactions":[],"lastModifiedDate":"2012-03-12T17:21:54","indexId":"70035199","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Sedimentary constraints on late Quaternary lake-level fluctuations at Bear Lake, Utah and Idaho","docAbstract":"A variety of sedimentological evidence was used to construct the lake-level history for Bear Lake, Utah and Idaho, for the past ???25,000 years. Shorelines provide evidence of precise lake levels, but they are infrequently preserved and are poorly dated. For cored sediment similar to that in the modern lake, grain-size distributions provide estimates of past lake depths. Sedimentary textures provide a highly sensitive, continuous record of lake-level changes, but the modern distribution of fabrics is poorly constrained, and many ancient features have no modern analog. Combining the three types of data yields a more robust lake-level history than can be obtained from any one type alone. When smooth age-depth models are used, lake-level curves from multiple cores contain inconsistent intervals (i.e., one record indicates a rising lake level while another record indicates a falling lake level). These discrepancies were removed and the multiple records were combined into a single lake-level curve by developing age-depth relations that contain changes in deposition rate (i.e., gaps) where indicated by sedimentological evidence. The resultant curve shows that, prior to 18 ka, lake level was stable near the modern level, probably because the lake was overflowing. Between ca. 17.5 and 15.5 ka, lake level was ???40 m below the modern level, then fluctuated rapidly throughout the post-glacial interval. Following a brief rise centered ca. 15 ka ( = Raspberry Square phase), lake level lowered again to 15-20 m below modern from ca. 14.8-11.8 ka. This regression culminated in a lowstand to 40 m below modern ca. 12.5 ka, before a rapid rise to levels above modern ca. 11.5 ka. Lake level was typically lower than present throughout the Holocene, with pronounced lowstands 15-20 m below the modern level ca. 10-9, 7.0, 6.5-4.5, 3.5, 3.0-2.5, 2.0, and 1.5 ka. High lake levels near or above the modern lake occurred ca. 8.5-8.0, 7.0-6.5, 4.5-3.5, 2.5, and 0.7 ka. This lake-level history is more similar to records from Pyramid Lake, Nevada, and Owens Lake, California, than to those from Lake Bonneville, Utah. Copyright ?? 2009 The Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Special Paper of the Geological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/2009.2450(12)","issn":"00721077","usgsCitation":"Smoot, J.P., and Rosenbaum, J.G., 2009, Sedimentary constraints on late Quaternary lake-level fluctuations at Bear Lake, Utah and Idaho: Special Paper of the Geological Society of America, no. 450, p. 263-290, https://doi.org/10.1130/2009.2450(12).","startPage":"263","endPage":"290","numberOfPages":"28","costCenters":[],"links":[{"id":215184,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/2009.2450(12)"},{"id":242966,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"450","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8a18e4b08c986b317021","contributors":{"authors":[{"text":"Smoot, J. P.","contributorId":65878,"corporation":false,"usgs":true,"family":"Smoot","given":"J.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":449694,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosenbaum, J. G.","contributorId":96685,"corporation":false,"usgs":true,"family":"Rosenbaum","given":"J.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":449695,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035200,"text":"70035200 - 2009 - Mesohaline submerged aquatic vegetation survey along the U.S. gulf of Mexico coast, 2001 and 2002: A salinity gradient approach","interactions":[],"lastModifiedDate":"2020-01-10T10:09:11","indexId":"70035200","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1873,"text":"Gulf of Mexico Science","active":true,"publicationSubtype":{"id":10}},"title":"Mesohaline submerged aquatic vegetation survey along the U.S. gulf of Mexico coast, 2001 and 2002: A salinity gradient approach","docAbstract":"Distribution of marine submerged aquatic vegetation (SAV; i.e., seagrass) in the northern Gulf of Mexico coast has been documented, but there are nonmarine submersed or SAV species occurring in estuarine salinities that have not been extensively reported. We sampled 276 SAV beds along the gulf coast in Florida, Alabama, Mississippi, Louisiana, and Texas in 2001 and 2002 in oligohaline to polyhaline (0 to 36 parts per thousand) waters to determine estuarine SAV species distribution and identify mesohaline SAV communities. A total of 20 SAV and algal species was identified and habitat characteristics such as salinity, water depth, pH, conductivity, turbidity, dissolved oxygen, and sediment composition were collected. Fourteen SAV species occurred two or more times in our samples. The most frequently occurring species was Ruppia maritima L. (n = 148), occurring in over half of SAV beds sampled. Eleocharis sp. (n = 47), characterized with an emergent rather than submerged growth form, was a common genus in the SAV beds sampled. A common marine species was Halodule wrightii Asch. (n = 36). Nonindigenous species Myriophyllum spicatum L. (n = 31) and Hydrilla verticillata (L. f.) Royle (n = 6) were present only in oligohaline water. Analyzing species occurrence and environmental characteristics using canonical correspondence and two-way indicator species analysis, we identify five species assemblages distinguished primarily by salinity and depth. Our survey increases awareness of nonmarine SAV as a natural resource in the gulf, and provides baseline data for future research.
","language":"English","publisher":"Dauphin Island Sea Lab","doi":"10.18785/goms.2701.02","issn":"1087688X","usgsCitation":"Merino, J., Carter, J., and Merino, S., 2009, Mesohaline submerged aquatic vegetation survey along the U.S. gulf of Mexico coast, 2001 and 2002: A salinity gradient approach: Gulf of Mexico Science, v. 27, no. 1, p. 9-20, https://doi.org/10.18785/goms.2701.02.","productDescription":"12 p.","startPage":"9","endPage":"20","numberOfPages":"12","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":487250,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.18785/goms.2701.02","text":"Publisher Index Page"},{"id":242967,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alabama, Florida, Louisiana, Mississippi, Texas","otherGeospatial":"Gulf of Mexico","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -97.55859375,\n 26.194876675795218\n ],\n [\n -81.6064453125,\n 26.194876675795218\n ],\n [\n -81.6064453125,\n 30.789036751261136\n ],\n [\n -97.55859375,\n 30.789036751261136\n ],\n [\n -97.55859375,\n 26.194876675795218\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"27","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-01-01","publicationStatus":"PW","scienceBaseUri":"505a5445e4b0c8380cd6cf25","contributors":{"authors":[{"text":"Merino, J.H.","contributorId":87748,"corporation":false,"usgs":true,"family":"Merino","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":449698,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carter, J. 0000-0003-0110-0284 carterj@usgs.gov","orcid":"https://orcid.org/0000-0003-0110-0284","contributorId":81839,"corporation":false,"usgs":true,"family":"Carter","given":"J.","email":"carterj@usgs.gov","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":449697,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Merino, S.L. 0000-0002-2834-2243","orcid":"https://orcid.org/0000-0002-2834-2243","contributorId":31219,"corporation":false,"usgs":true,"family":"Merino","given":"S.L.","affiliations":[],"preferred":false,"id":449696,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035215,"text":"70035215 - 2009 - Comparison with CLPX II airborne data using DMRT model","interactions":[],"lastModifiedDate":"2012-03-12T17:21:52","indexId":"70035215","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Comparison with CLPX II airborne data using DMRT model","docAbstract":"In this paper, we considered a physical-based model which use numerical solution of Maxwell Equations in three-dimensional simulations and apply into Dense Media Radiative Theory (DMRT). The model is validated in two specific dataset from the second Cold Land Processes Experiment (CLPX II) at Alaska and Colorado. The data were all obtain by the Ku-band (13.95GHz) observations using airborne imaging polarimetric scatterometer (POLSCAT). Snow is a densely packed media. To take into account the collective scattering and incoherent scattering, analytical Quasi-Crystalline Approximation (QCA) and Numerical Maxwell Equation Method of 3-D simulation (NMM3D) are used to calculate the extinction coefficient and phase matrix. DMRT equations were solved by iterative solution up to 2nd order for the case of small optical thickness and full multiple scattering solution by decomposing the diffuse intensities into Fourier series was used when optical thickness exceed unity. It was shown that the model predictions agree with the field experiment not only co-polarization but also cross-polarization. For Alaska region, the input snow structure data was obtain by the in situ ground observations, while for Colorado region, we combined the VIC model to get the snow profile. ??2009 IEEE.","largerWorkTitle":"International Geoscience and Remote Sensing Symposium (IGARSS)","conferenceTitle":"2009 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2009","conferenceDate":"12 July 2009 through 17 July 2009","conferenceLocation":"Cape Town","language":"English","doi":"10.1109/IGARSS.2009.5418025","isbn":"9781424433957","usgsCitation":"Xu, X., Liang, D., Andreadis, K., Tsang, L., and Josberger, E., 2009, Comparison with CLPX II airborne data using DMRT model, in International Geoscience and Remote Sensing Symposium (IGARSS), v. 2, Cape Town, 12 July 2009 through 17 July 2009, https://doi.org/10.1109/IGARSS.2009.5418025.","costCenters":[],"links":[{"id":243262,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215455,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/IGARSS.2009.5418025"}],"volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f8bfe4b0c8380cd4d287","contributors":{"authors":[{"text":"Xu, X.","contributorId":55166,"corporation":false,"usgs":true,"family":"Xu","given":"X.","email":"","affiliations":[],"preferred":false,"id":449767,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Liang, D.","contributorId":66483,"corporation":false,"usgs":true,"family":"Liang","given":"D.","email":"","affiliations":[],"preferred":false,"id":449769,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Andreadis, K.M.","contributorId":8294,"corporation":false,"usgs":true,"family":"Andreadis","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":449765,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tsang, L.","contributorId":43950,"corporation":false,"usgs":true,"family":"Tsang","given":"L.","email":"","affiliations":[],"preferred":false,"id":449766,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Josberger, E.G.","contributorId":61161,"corporation":false,"usgs":true,"family":"Josberger","given":"E.G.","email":"","affiliations":[],"preferred":false,"id":449768,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035216,"text":"70035216 - 2009 - Improving accessibility to geospatial data using geographic search","interactions":[],"lastModifiedDate":"2012-03-12T17:21:52","indexId":"70035216","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Improving accessibility to geospatial data using geographic search","docAbstract":"[No abstract available]","largerWorkTitle":"2009 17th International Conference on Geoinformatics, Geoinformatics 2009","conferenceTitle":"2009 17th International Conference on Geoinformatics, Geoinformatics 2009","conferenceDate":"12 August 2009 through 14 August 2009","conferenceLocation":"Fairfax, VA","language":"English","doi":"10.1109/GEOINFORMATICS.2009.5293479","isbn":"9781424445639","usgsCitation":"Williams, J., Allison, M., and Kozman, J., 2009, Improving accessibility to geospatial data using geographic search, in 2009 17th International Conference on Geoinformatics, Geoinformatics 2009, Fairfax, VA, 12 August 2009 through 14 August 2009, https://doi.org/10.1109/GEOINFORMATICS.2009.5293479.","costCenters":[],"links":[{"id":243263,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215456,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/GEOINFORMATICS.2009.5293479"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3970e4b0c8380cd61910","contributors":{"authors":[{"text":"Williams, J.E.","contributorId":14768,"corporation":false,"usgs":true,"family":"Williams","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":449770,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Allison, M.L.","contributorId":87739,"corporation":false,"usgs":true,"family":"Allison","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":449772,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kozman, J.B.","contributorId":23780,"corporation":false,"usgs":true,"family":"Kozman","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":449771,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035221,"text":"70035221 - 2009 - Pliocene three-dimensional global ocean temperature reconstruction","interactions":[],"lastModifiedDate":"2012-03-12T17:21:56","indexId":"70035221","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1250,"text":"Climate of the Past","active":true,"publicationSubtype":{"id":10}},"title":"Pliocene three-dimensional global ocean temperature reconstruction","docAbstract":"The thermal structure of the mid-Piacenzian ocean is obtained by combining the Pliocene Research, Interpretation and Synoptic Mapping Project (PRISM3) multiproxy sea-surface temperature (SST) reconstruction with bottom water temperature estimates from 27 locations produced using Mg/Ca paleothermometry based upon the ostracod genus Krithe. Deep water temperature estimates are skewed toward the Atlantic Basin (63% of the locations) and represent depths from 1000m to 4500 m. This reconstruction, meant to serve as a validation data set as well as an initialization for coupled numerical climate models, assumes a Pliocene water mass framework similar to that which exists today, with several important modifications. The area of formation of present day North Atlantic Deep Water (NADW) was expanded and extended further north toward the Arctic Ocean during the mid-Piacenzian relative to today. This, combined with a deeper Greenland-Scotland Ridge, allowed a greater volume of warmer NADW to enter the Atlantic Ocean. In the Southern Ocean, the Polar Front Zone was expanded relative to present day, but shifted closer to the Antarctic continent. This, combined with at least seasonal reduction in sea ice extent, resulted in decreased Antarctic Bottom Water (AABW) production (relative to present day) as well as possible changes in the depth of intermediate waters. The reconstructed mid-Piacenzian three-dimensional ocean was warmer overall than today, and the hypothesized aerial extent of water masses appears to fit the limited stable isotopic data available for this time period. ?? Author(s) 2009.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Climate of the Past","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"18149324","usgsCitation":"Dowsett, H., Robinson, M., and Foley, K., 2009, Pliocene three-dimensional global ocean temperature reconstruction: Climate of the Past, v. 5, no. 4, p. 769-783.","startPage":"769","endPage":"783","numberOfPages":"15","costCenters":[],"links":[{"id":243326,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7c80e4b0c8380cd79a07","contributors":{"authors":[{"text":"Dowsett, H.J. 0000-0003-1983-7524","orcid":"https://orcid.org/0000-0003-1983-7524","contributorId":87924,"corporation":false,"usgs":true,"family":"Dowsett","given":"H.J.","affiliations":[],"preferred":false,"id":449789,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robinson, M.M.","contributorId":56263,"corporation":false,"usgs":true,"family":"Robinson","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":449788,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Foley, K.M.","contributorId":41846,"corporation":false,"usgs":true,"family":"Foley","given":"K.M.","email":"","affiliations":[],"preferred":false,"id":449787,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70035222,"text":"70035222 - 2009 - Migration patterns and wintering range of common loons breeding in the Northeastern United States","interactions":[],"lastModifiedDate":"2012-03-12T17:21:57","indexId":"70035222","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3731,"text":"Waterbirds","onlineIssn":"19385390","printIssn":"15244695","active":true,"publicationSubtype":{"id":10}},"title":"Migration patterns and wintering range of common loons breeding in the Northeastern United States","docAbstract":"A study, using satellite telemetry, was conducted to determine the precise migration patterns and wintering locations of Common Loons (Gavia immer) breeding in the northeastern United States. Transmitters were implanted in 17 loons (16 adults and one juvenile) that were captured on breeding lakes in New York, New Hampshire, and Maine during the summers of 2003, 2004, and 2005. Transmitters from ten of the birds provided adequate location data to document movement to wintering areas. Most adult loons appeared to travel non-stop from breeding lakes, or neighboring lakes (within 15 km), to the Atlantic coast. Adult loons marked in New Hampshire and Maine wintered 152 to 239 km from breeding lakes, along the Maine coast. Adult loons marked in the Adirondack Park of New York wintered along the coasts of Massachusetts (414 km from breeding lake), Rhode Island (362 km), and southern New Jersey (527 km). Most of the loons remained relatively stationary throughout the winter, but the size of individual wintering areas of adult loons ranged from 43 to 1,159 km 2, based on a 95% fixed kernel utilization distribution probability. A juvenile bird from New York made a number of stops at lakes and reservoirs en route to Long Island Sound (325 km from breeding lake). Maximum functional life of transmitters was about 12 months, providing an opportunity to document spring migration movements as well. This work provides essential information for development and implementation of regional Common Loon conservation strategies in the Northeastern U.S.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Waterbirds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1675/063.032.0204","issn":"15244695","usgsCitation":"Kenow, K., Adams, D., Schoch, N., Evers, D., Hanson, W., Yates, D., Savoy, L., Fox, T., Major, A., Kratt, R., and Ozard, J., 2009, Migration patterns and wintering range of common loons breeding in the Northeastern United States: Waterbirds, v. 32, no. 2, p. 234-247, https://doi.org/10.1675/063.032.0204.","startPage":"234","endPage":"247","numberOfPages":"14","costCenters":[],"links":[{"id":215516,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1675/063.032.0204"},{"id":243327,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5714e4b0c8380cd6da3c","contributors":{"authors":[{"text":"Kenow, K.P.","contributorId":18302,"corporation":false,"usgs":true,"family":"Kenow","given":"K.P.","affiliations":[],"preferred":false,"id":449792,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Adams, D.","contributorId":22963,"corporation":false,"usgs":true,"family":"Adams","given":"D.","affiliations":[],"preferred":false,"id":449794,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schoch, N.","contributorId":18196,"corporation":false,"usgs":true,"family":"Schoch","given":"N.","email":"","affiliations":[],"preferred":false,"id":449791,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Evers, D.C.","contributorId":36501,"corporation":false,"usgs":true,"family":"Evers","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":449797,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hanson, W.","contributorId":19797,"corporation":false,"usgs":true,"family":"Hanson","given":"W.","email":"","affiliations":[],"preferred":false,"id":449793,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Yates, D.","contributorId":42391,"corporation":false,"usgs":true,"family":"Yates","given":"D.","email":"","affiliations":[],"preferred":false,"id":449798,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Savoy, L.","contributorId":28448,"corporation":false,"usgs":true,"family":"Savoy","given":"L.","email":"","affiliations":[],"preferred":false,"id":449795,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Fox, T.J.","contributorId":50477,"corporation":false,"usgs":true,"family":"Fox","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":449799,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Major, A.","contributorId":9846,"corporation":false,"usgs":true,"family":"Major","given":"A.","email":"","affiliations":[],"preferred":false,"id":449790,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Kratt, R.","contributorId":100998,"corporation":false,"usgs":true,"family":"Kratt","given":"R.","affiliations":[],"preferred":false,"id":449800,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Ozard, J.","contributorId":32006,"corporation":false,"usgs":true,"family":"Ozard","given":"J.","email":"","affiliations":[],"preferred":false,"id":449796,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}} ,{"id":70035229,"text":"70035229 - 2009 - Revised Dst and the epicycles of magnetic disturbance: 1958-2007","interactions":[],"lastModifiedDate":"2018-10-26T14:57:57","indexId":"70035229","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":780,"text":"Annales Geophysicae","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Revised Dst and the epicycles of magnetic disturbance: 1958-2007","title":"Revised Dst and the epicycles of magnetic disturbance: 1958-2007","docAbstract":"A revised version of the storm-time disturbance index Dst is calculated using hourly-mean magnetic-observatory data from four standard observatories and collected over the years 1958-2007. The calculation algorithm is a revision of that established by Sugiura et al., and which is now used by the Kyoto World Data Center for routine production of Dst. The most important new development is for the removal of solar-quiet variation. This is done through time and frequency-domain band-stop filtering - selectively removing specific Fourier terms approximating stationary periodic variation driven by the Earth's rotation, the Moon's orbit, the Earth's orbit around the Sun, and their mutual coupling. The resulting non-stationary disturbance time series are weighted by observatory-site geomagnetic latitude and then averaged together across longitudes to give what we call Dst5807-4SH. Comparisons are made with the standard Kyoto D st. Various biases, especially for residual solar-quiet variation, are identified in the Kyoto Dst, and occasional storm-time errors in the Kyoto Dst are noted. Using Dst5807-4SH, storms are ranked for maximum storm-time intensity, and we show that storm-occurrence frequency follows a power-law distribution with an exponential cutoff. The epicycles of magnetic disturbance are explored: we (1) map low-latitude local-time disturbance asymmetry, (2) confirm the 27-day storm-recurrence phenomenon using autocorrelation, (3) investigate the coupled semi-annual-diurnal variation of magnetic activity and the proposed explanatory equinoctial and Russell-McPherron hypotheses, and (4) illustrate the well-known solar-cycle modulation of storm-occurrence likelihood. Since Dst5807-4SH is useful for a variety of space physics and solid-Earth applications, it is made freely available to the scientific community.","language":"English","publisher":"European Geosciences Union","doi":"10.5194/angeo-27-3101-2009","issn":"09927689","usgsCitation":"Love, J., and Gannon, J., 2009, Revised Dst and the epicycles of magnetic disturbance: 1958-2007: Annales Geophysicae, v. 27, no. 8, p. 3101-3131, https://doi.org/10.5194/angeo-27-3101-2009.","productDescription":"31 p.","startPage":"3101","endPage":"3131","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":476154,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5194/angeo-27-3101-2009","text":"Publisher Index Page"},{"id":242899,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":269212,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.5194/angeo-27-3101-2009"}],"volume":"27","issue":"8","noUsgsAuthors":false,"publicationDate":"2009-08-11","publicationStatus":"PW","scienceBaseUri":"505aaca8e4b0c8380cd86d93","contributors":{"authors":[{"text":"Love, J.J.","contributorId":66626,"corporation":false,"usgs":true,"family":"Love","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":449828,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gannon, J.L.","contributorId":78275,"corporation":false,"usgs":true,"family":"Gannon","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":449829,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035243,"text":"70035243 - 2009 - Soil and nutrient retention in winter-flooded ricefields with implications for watershed management","interactions":[],"lastModifiedDate":"2012-03-12T17:21:53","indexId":"70035243","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2456,"text":"Journal of Soil and Water Conservation","active":true,"publicationSubtype":{"id":10}},"title":"Soil and nutrient retention in winter-flooded ricefields with implications for watershed management","docAbstract":"The ability of water resources to support aquatic life and human needs depends, in part, on reducing nonpoint source pollution amid contemporary agricultural practices. Winter retention of shallow water on rice and other agricultural fields is an accepted management practice for wildlife conservation; however, soil and water conservation benefits are not well documented. We evaluated the ability of four post-harvest ricefield treatment combinations (stubble-flooded, stubble-open, disked-flooded and disked-open) to abate nonpoint source exports into watersheds of the Mississippi Alluvial Valley. Total suspended solid exports were 1,121 kg ha-1 (1,000 lb ac-1) from disked-open fields where rice stubble was disked after harvest and fields were allowed to drain, compared with 35 kg ha-1 (31 lb ac-1) from stubble-flooded fields where stubble was left standing after harvest and fields captured rainfall from November 1 to March 1. Estimates of total suspended solid exports from ricefields based on Landsat imagery and USDA crop data are 0.43 and 0.40 Mg km-2 day-1 in the Big Sunflower and L'Anguille watersheds, respectively. Estimated reductions in total suspended solid exports from ricefields into the Big Sunflower and L'Anguille water-sheds range from 26% to 64% under hypothetical scenarios in which 65% to 100% of the rice production area is managed to capture winter rainfall. Winter ricefield management reduced nonpoint source export by decreasing concentrations of solids and nutrients in, and reducing runoff volume from, ricefields in the Mississippi Alluvial Valley.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Soil and Water Conservation","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2489/jswc.64.3.173","issn":"00224561","usgsCitation":"Manley, S., Kaminski, R., Rodrigue, P., Dewey, J., Schoenholtz, S., Gerard, P., and Reinecke, K.J., 2009, Soil and nutrient retention in winter-flooded ricefields with implications for watershed management: Journal of Soil and Water Conservation, v. 64, no. 3, p. 173-182, https://doi.org/10.2489/jswc.64.3.173.","startPage":"173","endPage":"182","numberOfPages":"10","costCenters":[],"links":[{"id":215336,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2489/jswc.64.3.173"},{"id":243131,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"64","issue":"3","noUsgsAuthors":false,"publicationDate":"2009-06-01","publicationStatus":"PW","scienceBaseUri":"505b91e9e4b08c986b319b96","contributors":{"authors":[{"text":"Manley, S.W.","contributorId":13716,"corporation":false,"usgs":true,"family":"Manley","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":449874,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kaminski, R.M.","contributorId":53330,"corporation":false,"usgs":true,"family":"Kaminski","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":449876,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rodrigue, P.B.","contributorId":98559,"corporation":false,"usgs":true,"family":"Rodrigue","given":"P.B.","email":"","affiliations":[],"preferred":false,"id":449879,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dewey, J.C.","contributorId":7100,"corporation":false,"usgs":true,"family":"Dewey","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":449873,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schoenholtz, S.H.","contributorId":60178,"corporation":false,"usgs":true,"family":"Schoenholtz","given":"S.H.","affiliations":[],"preferred":false,"id":449878,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gerard, P.D.","contributorId":16368,"corporation":false,"usgs":true,"family":"Gerard","given":"P.D.","email":"","affiliations":[],"preferred":false,"id":449875,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Reinecke, K. J.","contributorId":54537,"corporation":false,"usgs":true,"family":"Reinecke","given":"K.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":449877,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70035245,"text":"70035245 - 2009 - Field camp: Using traditional methods to train the next generation of petroleum geologists","interactions":[],"lastModifiedDate":"2012-03-12T17:21:53","indexId":"70035245","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Field camp: Using traditional methods to train the next generation of petroleum geologists","docAbstract":"The summer field camp experience provides many students with their best opportunity to learn the scientific process by making observations and collecting, recording, evaluating, and interpreting geologic data. Field school projects enhance student professional development by requiring cooperation and interpersonal interaction, report writing to communicate interpretations, and the development of project management skills to achieve a common goal. The field school setting provides students with the opportunity to observe geologic features and their spatial distribution, size, and shape that will impact the student's future careers as geoscientists. The Les Huston Geology Field Camp (a.k.a. Oklahoma Geology Camp) near Ca??on City, Colorado, focuses on time-tested traditional methods of geological mapping and fieldwork to accomplish these goals. The curriculum consists of an introduction to field techniques (pacing, orienteering, measuring strike and dip, and using a Jacob's staff), sketching outcrops, section measuring (one illustrating facies changes), three mapping exercises (of increasing complexity), and a field geophysics project. Accurate rock and contact descriptions are emphasized, and attitudes and contacts are mapped in the field. Mapping is done on topographic maps at 1:12,000 and 1:6000 scales; air photos are provided. Global positioning system (GPS)-assisted mapping is allowed, but we insist that locations be recorded in the field and confirmed using visual observations. The course includes field trips to the Cripple Creek and Leadville mining districts, Floris-sant/Guffey volcano area, Pikes Peak batholith, and the Denver Basin. Each field trip is designed to emphasize aspects of geology that are not stressed in the field exercises. Students are strongly encouraged to accurately describe geologic features and gather evidence to support their interpretations of the geologic history. Concise reports are a part of each major exercise. Students are grouped into teams to (1) introduce the team concept and develop interpersonal skills that are fundamental components of many professions, (2) ensure safety, and (3) mix students with varying academic backgrounds and physical strengths. This approach has advantages and disadvantages. Students with academic strengths in specific areas assist those with less experience, thereby becoming engaged in the teaching process. However, some students contribute less to fi nal map projects than others, and assigning grades to individual team members can be diffi cult. The greatest challenges we face involve group dynamics and student personalities. We continue to believe that traditional fi eld methods, aided by (but not relying upon) new technologies, are the key to constructing and/or interpreting geologic maps. The requirement that students document fi eld evidence using careful observations teaches skills that will be benefi cial throughout their professional careers. ??2009 The Geological Society of America. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Special Paper of the Geological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/2009.2461(03)","issn":"00721077","usgsCitation":"Puckette, J., and Suneson, N., 2009, Field camp: Using traditional methods to train the next generation of petroleum geologists: Special Paper of the Geological Society of America, no. 461, p. 25-34, https://doi.org/10.1130/2009.2461(03).","startPage":"25","endPage":"34","numberOfPages":"10","costCenters":[],"links":[{"id":215368,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/2009.2461(03)"},{"id":243165,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"461","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0fa6e4b0c8380cd53981","contributors":{"authors":[{"text":"Puckette, J.O.","contributorId":87386,"corporation":false,"usgs":true,"family":"Puckette","given":"J.O.","email":"","affiliations":[],"preferred":false,"id":449881,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Suneson, N.H.","contributorId":96110,"corporation":false,"usgs":true,"family":"Suneson","given":"N.H.","affiliations":[],"preferred":false,"id":449882,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035249,"text":"70035249 - 2009 - Megablocks and melt pockets in the Chesapeake Bay impact structure constrained by magnetic field measurements and properties of the Eyreville and Cape Charles cores","interactions":[],"lastModifiedDate":"2012-03-12T17:21:53","indexId":"70035249","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Megablocks and melt pockets in the Chesapeake Bay impact structure constrained by magnetic field measurements and properties of the Eyreville and Cape Charles cores","docAbstract":"We use magnetic susceptibility and remanent magnetization measurements of the Eyreville and Cape Charles cores in combination with new and previously collected magnetic field data in order to constrain structural features within the inner basin of the Chesapeake Bay impact structure. The Eyreville core shows the first evidence of several-hundred-meter-thick basement-derived megablocks that have been transported possibly kilometers from their pre-impact location. The magnetic anomaly map of the structure exhibits numerous short-wavelength (<2 km) variations that indicate the presence of magnetic sources within the crater fill. With core magnetic properties and seismic reflection and refraction results as constraints, forward models of the magnetic field show that these sources may represent basementderived megablocks that are a few hundred meters thick or melt bodies that are a few dozen meters thick. Larger-scale magnetic field properties suggest that these bodies overlie deeper, pre-impact basement contacts between materials with different magnetic properties such as gneiss and schist or gneiss and granite. The distribution of the short-wavelength magnetic anomalies in combination with observations of small-scale (1-2 mGal) gravity field variations suggest that basement-derived megablocks are preferentially distributed on the eastern side of the inner crater, not far from the Eyreville core, at depths of around 1-2 km. A scenario where additional basement-derived blocks between 2 and 3 km depth are distributed throughout the inner basin-and are composed of more magnetic materials, such as granite and schist, toward the east over a large-scale magnetic anomaly high and less magnetic materials, such as gneiss, toward the west where the magnetic anomaly is lower-provides a good model fi t to the observed magnetic anomalies in a manner that is consistent with both gravity and seismic-refraction data. ?? 2009 The Geological Society of America.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Special Paper of the Geological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/2009.2458(10)","issn":"00721077","usgsCitation":"Shah, A., Daniels, D.L., Kontny, A., and Brozena, J., 2009, Megablocks and melt pockets in the Chesapeake Bay impact structure constrained by magnetic field measurements and properties of the Eyreville and Cape Charles cores: Special Paper of the Geological Society of America, no. 458, p. 195-208, https://doi.org/10.1130/2009.2458(10).","startPage":"195","endPage":"208","numberOfPages":"14","costCenters":[],"links":[{"id":215425,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/2009.2458(10)"},{"id":243231,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"458","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5385e4b0c8380cd6cb3f","contributors":{"authors":[{"text":"Shah, A. K. 0000-0002-3198-081X","orcid":"https://orcid.org/0000-0002-3198-081X","contributorId":101789,"corporation":false,"usgs":true,"family":"Shah","given":"A. K.","affiliations":[],"preferred":false,"id":449896,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Daniels, D. L.","contributorId":69114,"corporation":false,"usgs":true,"family":"Daniels","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":449894,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kontny, A.","contributorId":80919,"corporation":false,"usgs":true,"family":"Kontny","given":"A.","email":"","affiliations":[],"preferred":false,"id":449895,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Brozena, J.","contributorId":67714,"corporation":false,"usgs":true,"family":"Brozena","given":"J.","affiliations":[],"preferred":false,"id":449893,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70035255,"text":"70035255 - 2009 - Rocky Mountain evolution: Tying Continental Dynamics of the Rocky Mountains and Deep Probe seismic experiments with receiver functions","interactions":[],"lastModifiedDate":"2012-03-12T17:21:57","indexId":"70035255","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Rocky Mountain evolution: Tying Continental Dynamics of the Rocky Mountains and Deep Probe seismic experiments with receiver functions","docAbstract":"In this study, we have determined the crustal structure using three different receiver function methods using data collected from the northern transect of the Continental Dynamics of the Rocky Mountains (CD-ROM) experiment. The resulting migrated image and crustal thickness determinations confirm and refine prior crustal thickness measurements based on the CD-ROM and Deep Probe experiment data sets. The new results show a very distinct and thick lower crustal layer beneath the Archean Wyoming province. In addition, we are able to show its termination at 42??N latitude, which provides a seismic tie between the CD-ROM and Deep Probe seismic experiments and thus completes a continuous north-south transect extending from New Mexico into Alberta, Canada. This new tie is particularly important because it occurs close to a major tectonic boundary, the Cheyenne belt, between an Archean craton and a Proterozoic terrane. We used two different stacking techniques, based on a similar concept but using two different ways to estimate uncertainties. Furthermore, we used receiver function migration and common conversion point (CCP) stacking techniques. The combined interpretation of all our results shows (1) crustal thinning in southern Wyoming, (2) strong northward crustal thickening beginning in central Wyoming, (3) the presence of an unusually thick and high-velocity lower crust beneath the Wyoming province, and (4) the abrupt termination of this lower crustal layer north of the Cheyenne belt at 42??N latitude. Copyright 2009 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2008JB005726","issn":"01480227","usgsCitation":"Rumpfhuber, E., Keller, G.R., Sandvol, E., Velasco, A., and Wilson, D., 2009, Rocky Mountain evolution: Tying Continental Dynamics of the Rocky Mountains and Deep Probe seismic experiments with receiver functions: Journal of Geophysical Research B: Solid Earth, v. 114, no. 8, https://doi.org/10.1029/2008JB005726.","costCenters":[],"links":[{"id":215517,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2008JB005726"},{"id":243328,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"114","issue":"8","noUsgsAuthors":false,"publicationDate":"2009-08-11","publicationStatus":"PW","scienceBaseUri":"505aae23e4b0c8380cd87028","contributors":{"authors":[{"text":"Rumpfhuber, E.-M.","contributorId":55231,"corporation":false,"usgs":true,"family":"Rumpfhuber","given":"E.-M.","email":"","affiliations":[],"preferred":false,"id":449920,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Keller, Gordon R.","contributorId":90280,"corporation":false,"usgs":true,"family":"Keller","given":"Gordon","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":449921,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sandvol, E.","contributorId":101476,"corporation":false,"usgs":true,"family":"Sandvol","given":"E.","email":"","affiliations":[],"preferred":false,"id":449922,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Velasco, A.A.","contributorId":101894,"corporation":false,"usgs":true,"family":"Velasco","given":"A.A.","email":"","affiliations":[],"preferred":false,"id":449923,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wilson, D.C.","contributorId":22599,"corporation":false,"usgs":true,"family":"Wilson","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":449919,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035263,"text":"70035263 - 2009 - Depletion of isoeugenol residues from the fillet tissue of AQUI-S™ exposed rainbow trout (Oncorhynchus mykiss)","interactions":[],"lastModifiedDate":"2015-03-30T10:25:18","indexId":"70035263","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":853,"text":"Aquaculture","active":true,"publicationSubtype":{"id":10}},"title":"Depletion of isoeugenol residues from the fillet tissue of AQUI-S™ exposed rainbow trout (Oncorhynchus mykiss)","docAbstract":"There is a critical need in U.S. public aquaculture and fishery management for an approved sedative that allows for the immediate release of fish after sedation. AQUI-STM is a fish anesthetic/sedative approved for use in several countries and until recently was being developed in the U.S. as a sedative for immediate release of fish after sedation. The U.S. National Toxicology Program reported that isoeugenol (the active ingredient in AQUI-STM) exposed male mice showed clear evidence of carcinogenicity, therefore efforts within the U.S. Department of Interior to develop AQUI-STM as a sedative that allows for immediate release ceased. Despite the ruling, AQUI-STM still has the potential to be approved as an anesthetic with a short withdrawal time. Among the data required to gain approval for use in the U.S. are data describing the composition and depletion of all AQUI-STM residues from fish fillet tissue. A total residue depletion study for AQUI-STM was conducted by exposing market-sized rainbow trout, Oncorhynchus mykiss (mean weight, 502.7 ± 54 g; s.d.) to 8.9 mg/L of 14C-[URL]-isoeugenol for 60 min in 17 °C water. The 14C-[URL]-isoeugenol was mixed with a surfactant resulting in a mixture that mimicked AQUI-STM. Groups of fish (n = 6) were sampled immediately after the exposure (0-h sample group) and at 0.5, 1, 2, and 4 h thereafter. Total isoeugenol-equivalent residue concentrations in the fillet tissue were determined by oxidizing triplicate subsamples of homogenized skin-on fillet tissue from each fish to 14CO2 and enumerating the radioactivity by static liquid scintillation counting. Isoeugenol concentrations in fillet tissue were determined by extracting homogenized fillet tissue with solvents and determining the isoeugenol concentrations in the extracts with high performance liquid chromatography techniques. The mean total isoeugenol-equivalent residue concentrations in the 0, 0.5, 1, 2, and 4-h sample groups were 55.4, 32.0, 19.8, 11.3, and 4.9 µg/g, respectively. The primary chemical residue in fillet tissue from all exposed fish was isoeugenol. The mean isoeugenol concentrations in the 0, 0.5, 1, 2, and 4-h sample groups were 48.9, 26.5, 15.3, 7.2, and 2.2 µg/g, respectively. The percents of the total radioactivity classified as isoeugenol in the 0, 0.5, 1, 2, and 4-h tissue extracts were 95, 73, 73, 64, and 48%, respectively.
","language":"English","publisher":"Elsevier","doi":"10.1016/j.aquaculture.2009.08.022","issn":"00448486","usgsCitation":"Meinertz, J.R., and Schreier, T.M., 2009, Depletion of isoeugenol residues from the fillet tissue of AQUI-S™ exposed rainbow trout (Oncorhynchus mykiss): Aquaculture, v. 296, no. 3-4, p. 200-206, https://doi.org/10.1016/j.aquaculture.2009.08.022.","productDescription":"7 p.","startPage":"200","endPage":"206","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":242935,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215157,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.aquaculture.2009.08.022"}],"volume":"296","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059feb2e4b0c8380cd4ee92","contributors":{"authors":[{"text":"Meinertz, Jeffery R. 0000-0002-8855-2648 jmeinertz@usgs.gov","orcid":"https://orcid.org/0000-0002-8855-2648","contributorId":2495,"corporation":false,"usgs":true,"family":"Meinertz","given":"Jeffery","email":"jmeinertz@usgs.gov","middleInitial":"R.","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":449944,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schreier, Theresa M. 0000-0001-7722-6292 tschreier@usgs.gov","orcid":"https://orcid.org/0000-0001-7722-6292","contributorId":3344,"corporation":false,"usgs":true,"family":"Schreier","given":"Theresa","email":"tschreier@usgs.gov","middleInitial":"M.","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":449945,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035264,"text":"70035264 - 2009 - Hierarchical spatial genetic structure of Common Eiders (Somateria mollissima) breeding along a migratory corridor","interactions":[],"lastModifiedDate":"2018-08-19T22:21:30","indexId":"70035264","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Hierarchical spatial genetic structure of Common Eiders (Somateria mollissima) breeding along a migratory corridor","docAbstract":"Documentation of spatial genetic discordance among breeding populations of Arctic-nesting avian species is important, because anthropogenic change is altering environmental linkages at micro- and macrogeographic scales. We estimated levels of population subdivision within Pacific Common Eiders (Somateria mollissima v-nigrum) breeding on 12 barrier islands in the western Beaufort Sea, Alaska, using molecular markers and capture—mark—recapture (CMR) data. Common Eider populations were genetically structured on a microgeographic scale. Regional comparisons between populations breeding on island groups separated by 90 km (Mikkelsen Bay and Simpson Lagoon) revealed structuring at 14 microsatellite loci (F ST = 0.004, P < 0.01), a nuclear intron (F ST = 0.022, P = 0.02), and mitochondrial DNA (ΦST = 0.082, P < 0.05). The CMR data (n = 34) did not indicate female dispersal between island groups. Concordance between genetic and CMR data indicates that females breeding in the western Beaufort Sea are strongly philopatric to island groups rather than to a particular island. Despite the apparent high site fidelity of females, coalescence-based models of gene flow suggest that asymmetrical western dispersal occurs between island groups and is likely mediated by Mikkelsen Bay females stopping early on spring migration at Simpson Lagoon to breed. Alternatively, late-arriving females may be predisposed to nest in Simpson Lagoon because of the greater availability and wider distribution of nesting habitat. Our results indicate that genetic discontinuities, mediated by female philopatry, can exist at microgeographic scales along established migratory corridors.
The Global Land Survey (GLS) 2005 is a cloud-free, orthorec-tified collection of Landsat imagery acquired during the 2004 to 2007 epoch intended to support global land-cover and ecological monitoring. Due to the numerous complexities in selecting imagery for the GLS2005, NASA and the U.S. Geological Survey (USGS) sponsored the development of an automated scene selection tool, the Large Area Scene Selection Interface (LASSI), to aid in the selection of imagery for this data set. This innovative approach to scene selection applied a user-defined weighting system to various scene parameters: image cloud cover, image vegetation greenness, choice of sensor, and the ability of the Landsat-7 Scan Line Corrector (SLC)-off pair to completely fill image gaps, among others. The parameters considered in scene selection were weighted according to their relative importance to the data set, along with the algorithm’s sensitivity to that weight. This paper describes the methodology and analysis that established the parameter weighting strategy, as well as the post-screening processes used in selecting the optimal data set for GLS2005.
","language":"English","publisher":"Ingenta","doi":"10.14358/PERS.75.11.1287","issn":"00991112","usgsCitation":"Franks, S., Masek, J.G., Headley, R., Gasch, J., and Arvidson, T., 2009, Large area scene selection interface (LASSI): Methodology of selecting landsat imagery for The Global Land Survey 2005: Photogrammetric Engineering and Remote Sensing, v. 75, no. 11, p. 1287-1296, https://doi.org/10.14358/PERS.75.11.1287.","productDescription":"10 p.","startPage":"1287","endPage":"1296","numberOfPages":"10","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":476185,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14358/pers.75.11.1287","text":"Publisher Index Page"},{"id":243300,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"75","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4476e4b0c8380cd66b20","contributors":{"authors":[{"text":"Franks, S.","contributorId":40803,"corporation":false,"usgs":true,"family":"Franks","given":"S.","email":"","affiliations":[],"preferred":false,"id":450016,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Masek, J. G.","contributorId":105883,"corporation":false,"usgs":true,"family":"Masek","given":"J.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":450018,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Headley, R.M.K.","contributorId":10245,"corporation":false,"usgs":true,"family":"Headley","given":"R.M.K.","email":"","affiliations":[],"preferred":false,"id":450014,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gasch, J.","contributorId":87388,"corporation":false,"usgs":true,"family":"Gasch","given":"J.","email":"","affiliations":[],"preferred":false,"id":450017,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Arvidson, T.","contributorId":35147,"corporation":false,"usgs":true,"family":"Arvidson","given":"T.","email":"","affiliations":[],"preferred":false,"id":450015,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035292,"text":"70035292 - 2009 - A prototype feature system for feature retrieval using relationships","interactions":[],"lastModifiedDate":"2012-03-12T17:21:55","indexId":"70035292","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1191,"text":"Cartography and Geographic Information Science","active":true,"publicationSubtype":{"id":10}},"title":"A prototype feature system for feature retrieval using relationships","docAbstract":"Using a feature data model, geographic phenomena can be represented effectively by integrating space, theme, and time. This paper extends and implements a feature data model that supports query and visualization of geographic features using their non-spatial and temporal relationships. A prototype feature-oriented geographic information system (FOGIS) is then developed and storage of features named Feature Database is designed. Buildings from the U.S. Marine Corps Base, Camp Lejeune, North Carolina and subways in Chicago, Illinois are used to test the developed system. The results of the applications show the strength of the feature data model and the developed system 'FOGIS' when they utilize non-spatial and temporal relationships in order to retrieve and visualize individual features.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Cartography and Geographic Information Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1559/152304009789786353","issn":"15230406","usgsCitation":"Choi, J., and Usery, E., 2009, A prototype feature system for feature retrieval using relationships: Cartography and Geographic Information Science, v. 36, no. 4, p. 331-345, https://doi.org/10.1559/152304009789786353.","startPage":"331","endPage":"345","numberOfPages":"15","costCenters":[],"links":[{"id":242872,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215098,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1559/152304009789786353"}],"volume":"36","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e520e4b0c8380cd46b37","contributors":{"authors":[{"text":"Choi, J.","contributorId":42741,"corporation":false,"usgs":true,"family":"Choi","given":"J.","email":"","affiliations":[],"preferred":false,"id":450046,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Usery, E.L.","contributorId":45355,"corporation":false,"usgs":true,"family":"Usery","given":"E.L.","email":"","affiliations":[],"preferred":false,"id":450047,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035294,"text":"70035294 - 2009 - A habitat assessment for Florida panther population expansion into central Florida","interactions":[],"lastModifiedDate":"2016-04-13T14:41:51","indexId":"70035294","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2373,"text":"Journal of Mammalogy","onlineIssn":"1545-1542","printIssn":"0022-2372","active":true,"publicationSubtype":{"id":10}},"title":"A habitat assessment for Florida panther population expansion into central Florida","docAbstract":"One of the goals of the Florida panther (Puma concolor coryi) recovery plan is to expand panther range north of the Caloosahatchee River in central Florida. Our objective was to evaluate the potential of that region to support panthers. We used a geographic information system and the Mahalanobis distance statistic to develop a habitat model based on landscape characteristics associated with panther home ranges. We used cross-validation and an independent telemetry data set to test the habitat model. We also conducted a least-cost path analysis to identify potential habitat linkages and to provide a relative measure of connectivity among habitat patches. Variables in our model were paved road density, major highways, human population density, percentage of the area permanently or semipermanently flooded, and percentage of the area in natural land cover. Our model clearly identified habitat typical of that found within panther home ranges based on model testing with recent telemetry data. We identified 4 potential translocation sites that may support a total of approximately 36 panthers. Although we identified potential habitat linkages, our least-cost path analyses highlighted the extreme isolation of panther habitat in portions of the study area. Human intervention will likely be required if the goal is to establish female panthers north of the Caloosahatchee in the near term.
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Trace-element signatures of zircons from the Caledonian UHP terrane in North-East Greenland were used to examine the possible changes in signature with age during exhumation. Collection and interpretation of age and trace-element analyses of zircon from three samples of quartzofeldspathic gneiss and two leucocratic intrusions were guided by core vs. rim zoning patterns as imaged by cathodoluminesence. Change from igneous to eclogite-facies metamorphic trace-element signature in protolith zircon is characterized by gradual depletion of HREE, whereas newly formed metamorphic rims have flat HREE patterns and REE concentrations that are distinct from the recrystallized inherited cores. The signature associated with eclogite-facies metamorphic zircon is observed in coesite-bearing zircon formed at 358 ?? 4 Ma, metamorphic rims formed at 348 ?? 5 Ma during the initial stages of exhumation, and metamorphic rims formed at 337 ?? 5 Ma. Zircons from a garnet-bearing granite emplaced in the neck of an eclogite boudin and a leucocratic dike that cross-cuts amphibolite-facies structural fabrics have steeply sloping HREE patterns, variably developed negative Eu anomalies, and low Th/U ratios. The granite records initial decompression melting and exhumation at 347 ?? 2 Ma and later zircon rim growth at 329 ?? 5. The leucocratic dike was likely emplaced at amphibolite-facies conditions at 330 ?? 2 Ma, but records additional growth of compositionally similar zircon at 321 ??2 Ma. The difference between the trace-element signature of metamorphic zircon in the gneisses and in part coeval leucocratic intrusions indicates that the zircon signature varies as a function of lithology and context, thus enhancing its ability to aid in the interpretation of U-Pb data and track the exhumation history of UHP terranes. The differences may reflect variation in elemental availability through breakdown reactions in quartzofeldpathic gneiss vs. availability during melt production and/or crystallization. UHP rocks in North-East Greenland began exhumation by 347 ?? 2 Ma, were still at HP eclogite-facies conditions at 337 ?? 5 Ma and were at amphibolite-facies conditions by 330 ?? 2 Ma. ?? 2009 E. Schweizerbart'sche Verlagsbuchhandlung.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"European Journal of Mineralogy","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1127/0935-1221/2009/0021-2000","issn":"09351221","usgsCitation":"McClelland, W., Gilotti, J.A., Mazdab, F., and Wooden, J.L., 2009, Trace-element record in zircons during exhumation from UHP conditions, North-East Greenland Caledonides: European Journal of Mineralogy, v. 21, no. 6, p. 1135-1148, https://doi.org/10.1127/0935-1221/2009/0021-2000.","startPage":"1135","endPage":"1148","numberOfPages":"14","costCenters":[],"links":[{"id":243103,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215308,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1127/0935-1221/2009/0021-2000"}],"volume":"21","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb682e4b08c986b326ce6","contributors":{"authors":[{"text":"McClelland, W.C.","contributorId":66929,"corporation":false,"usgs":true,"family":"McClelland","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":450103,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gilotti, J. A.","contributorId":15776,"corporation":false,"usgs":true,"family":"Gilotti","given":"J.","middleInitial":"A.","affiliations":[],"preferred":false,"id":450101,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mazdab, F.K.","contributorId":11650,"corporation":false,"usgs":true,"family":"Mazdab","given":"F.K.","email":"","affiliations":[],"preferred":false,"id":450100,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wooden, J. L.","contributorId":58678,"corporation":false,"usgs":true,"family":"Wooden","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":450102,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70035318,"text":"70035318 - 2009 - Evaluation of airborne lidar data to predict vegetation Presence/Absence","interactions":[],"lastModifiedDate":"2012-03-12T17:21:53","indexId":"70035318","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of airborne lidar data to predict vegetation Presence/Absence","docAbstract":"This study evaluates the capabilities of the Experimental Advanced Airborne Research Lidar (EAARL) in delineating vegetation assemblages in Jean Lafitte National Park, Louisiana. Five-meter-resolution grids of bare earth, canopy height, canopy-reflection ratio, and height of median energy were derived from EAARL data acquired in September 2006. Ground-truth data were collected along transects to assess species composition, canopy cover, and ground cover. To decide which model is more accurate, comparisons of general linear models and generalized additive models were conducted using conventional evaluation methods (i.e., sensitivity, specificity, Kappa statistics, and area under the curve) and two new indexes, net reclassification improvement and integrated discrimination improvement. Generalized additive models were superior to general linear models in modeling presence/absence in training vegetation categories, but no statistically significant differences between the two models were achieved in determining the classification accuracy at validation locations using conventional evaluation methods, although statistically significant improvements in net reclassifications were observed. ?? 2009 Coastal Education and Research Foundation.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Coastal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2112/SI53-010.1","issn":"07490208","usgsCitation":"Palaseanu-Lovejoy, M., Nayegandhi, A., Brock, J., Woodman, R., and Wright, C.W., 2009, Evaluation of airborne lidar data to predict vegetation Presence/Absence: Journal of Coastal Research, no. SPECIAL ISSUE 53, p. 83-97, https://doi.org/10.2112/SI53-010.1.","startPage":"83","endPage":"97","numberOfPages":"15","costCenters":[],"links":[{"id":215493,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2112/SI53-010.1"},{"id":243303,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"SPECIAL ISSUE 53","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0c41e4b0c8380cd52aca","contributors":{"authors":[{"text":"Palaseanu-Lovejoy, M. 0000-0002-3786-5118","orcid":"https://orcid.org/0000-0002-3786-5118","contributorId":12605,"corporation":false,"usgs":true,"family":"Palaseanu-Lovejoy","given":"M.","affiliations":[],"preferred":false,"id":450151,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nayegandhi, A.","contributorId":95578,"corporation":false,"usgs":true,"family":"Nayegandhi","given":"A.","affiliations":[],"preferred":false,"id":450154,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brock, J. 0000-0002-5289-9332","orcid":"https://orcid.org/0000-0002-5289-9332","contributorId":71658,"corporation":false,"usgs":true,"family":"Brock","given":"J.","affiliations":[],"preferred":false,"id":450153,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Woodman, R.","contributorId":107124,"corporation":false,"usgs":true,"family":"Woodman","given":"R.","email":"","affiliations":[],"preferred":false,"id":450155,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wright, C. W. wwright@usgs.gov","contributorId":49758,"corporation":false,"usgs":true,"family":"Wright","given":"C.","email":"wwright@usgs.gov","middleInitial":"W.","affiliations":[],"preferred":false,"id":450152,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70035343,"text":"70035343 - 2009 - Criticisms biologically unwarranted and analytically irrelevant: Reply to Rominger et al.","interactions":[],"lastModifiedDate":"2012-03-12T17:21:54","indexId":"70035343","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Criticisms biologically unwarranted and analytically irrelevant: Reply to Rominger et al.","docAbstract":"The criticisms of Rominger et al. (2008) of our retrospective analysis of desert bighorn sheep (DBS; Ovis canadensis mexicana) dynamics in the San Andres Mountains of south-central New Mexico, USA, contained many biological errors and analytical oversights. Herein, we show that Rominger et al. (2008) 1) overstated both magnitude and potential effect of predator removal; 2) incorrectly claimed that our total precipitation (TP) model did not fit the data when TP correctly classed ???66 of subsequent population increases and declines (P ??? 0.063); 3) presented a necessary prerequisite of the exponential model (serial correlation between Nt and Nt1) as the key relationship in the DBS data, when it merely reflected that DBS are strongly K-selected and was irrelevant to our hypothesis tests specific to factors affecting the instantaneous rate of population increase (r); 4) greatly oversimplified relationships among precipitation, arid environments, and DBS; and 5) advocated a time for collection of lamb/female (L/F) ratio data that was unrelated to any meaningful period in the biological year of DBS and consequently presented L/F ratio data unrelated to observed dynamics of DBS. In contrast, the L/F ratios used in Bender and Weisenberger (2005) correctly predicted annual changes and were correlated with long-term population rates of change.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Wildlife Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2193/2008-219","issn":"0022541X","usgsCitation":"Bender, L.C., and Weisenberger, M., 2009, Criticisms biologically unwarranted and analytically irrelevant: Reply to Rominger et al.: Journal of Wildlife Management, v. 73, no. 5, p. 806-810, https://doi.org/10.2193/2008-219.","startPage":"806","endPage":"810","numberOfPages":"5","costCenters":[],"links":[{"id":243138,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215343,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2193/2008-219"}],"volume":"73","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-12-13","publicationStatus":"PW","scienceBaseUri":"5059fcb5e4b0c8380cd4e3ca","contributors":{"authors":[{"text":"Bender, Louis C.","contributorId":72509,"corporation":false,"usgs":true,"family":"Bender","given":"Louis","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":450274,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Weisenberger, M.E.","contributorId":94084,"corporation":false,"usgs":true,"family":"Weisenberger","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":450275,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70035344,"text":"70035344 - 2009 - Hurricane Wilma's impact on overall soil elevation and zones within the soil profile in a mangrove forest","interactions":[],"lastModifiedDate":"2013-07-16T11:37:46","indexId":"70035344","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Hurricane Wilma's impact on overall soil elevation and zones within the soil profile in a mangrove forest","docAbstract":"Soil elevation affects tidal inundation period, inundation frequency, and overall hydroperiod, all of which are important ecological factors affecting species recruitment, composition, and survival in wetlands. Hurricanes can dramatically affect a site's soil elevation. We assessed the impact of Hurricane Wilma (2005) on soil elevation at a mangrove forest location along the Shark River in Everglades National Park, Florida, USA. Using multiple depth surface elevation tables (SETs) and marker horizons we measured soil accretion, erosion, and soil elevation. We partitioned the effect of Hurricane Wilma's storm deposit into four constituent soil zones: surface (accretion) zone, shallow zone (0–0.35 m), middle zone (0.35–4 m), and deep zone (4–6 m). We report expansion and contraction of each soil zone. Hurricane Wilma deposited 37.0 (± 3.0 SE) mm of material; however, the absolute soil elevation change was + 42.8 mm due to expansion in the shallow soil zone. One year post-hurricane, the soil profile had lost 10.0 mm in soil elevation, with 8.5 mm of the loss due to erosion. The remaining soil elevation loss was due to compaction from shallow subsidence. We found prolific growth of new fine rootlets (209 ± 34 SE g m−2) in the storm deposited material suggesting that deposits may become more stable in the near future (i.e., erosion rate will decrease). Surficial erosion and belowground processes both played an important role in determining the overall soil elevation. Expansion and contraction in the shallow soil zone may be due to hydrology, and in the middle and bottom soil zones due to shallow subsidence. Findings thus far indicate that soil elevation has made substantial gains compared to site specific relative sea-level rise, but data trends suggest that belowground processes, which differ by soil zone, may come to dominate the long term ecological impact of storm deposit.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wetlands","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"The Society of Wetland Scientists","doi":"10.1672/08-125.1","issn":"02775212","usgsCitation":"Whelan, K., Smith, T.J., Anderson, G., and Ouellette, M., 2009, Hurricane Wilma's impact on overall soil elevation and zones within the soil profile in a mangrove forest: Wetlands, v. 29, no. 1, p. 16-23, https://doi.org/10.1672/08-125.1.","productDescription":"8 p.","startPage":"16","endPage":"23","costCenters":[{"id":275,"text":"Florida Integrated Science Center","active":false,"usgs":true}],"links":[{"id":215373,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1672/08-125.1"},{"id":243171,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Everglades National Park","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -81.52,24.85 ], [ -81.52,25.89 ], [ -80.39,25.89 ], [ -80.39,24.85 ], [ -81.52,24.85 ] ] ] } } ] }","volume":"29","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a32b4e4b0c8380cd5e9fb","contributors":{"authors":[{"text":"Whelan, K.R.T.","contributorId":11311,"corporation":false,"usgs":true,"family":"Whelan","given":"K.R.T.","email":"","affiliations":[],"preferred":false,"id":450276,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, T. J. III","contributorId":24303,"corporation":false,"usgs":true,"family":"Smith","given":"T.","suffix":"III","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":450277,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anderson, G.H.","contributorId":93601,"corporation":false,"usgs":true,"family":"Anderson","given":"G.H.","email":"","affiliations":[],"preferred":false,"id":450279,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ouellette, M.L.","contributorId":89736,"corporation":false,"usgs":true,"family":"Ouellette","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":450278,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70035352,"text":"70035352 - 2009 - Hurricane frequency and landfall distribution for coastal wetlands of the Gulf coast, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:54","indexId":"70035352","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Hurricane frequency and landfall distribution for coastal wetlands of the Gulf coast, USA","docAbstract":"The regularity and severity of tropical storms are major determinants controlling ecosystem structure and succession for coastal ecosystems. Hurricane landfall rates vary greatly with high and low frequency for given coastal stretches of the southeastern United States. Site-specific meteorological data of hurricane wind speeds and direction, however, are only available for select populated cities of relatively sparse distribution and inland from the coast. A spatial simulation model of hurricane circulation, HURASIM, was applied to reconstruct chronologies of hurricane wind speeds and vectors for northern Gulf coast locations derived from historical tracking data of North Atlantic tropical storms dating back to 1851. Contrasts of storm frequencies showed that tropical storm incidence is nearly double for Florida coastal ecosystems than the westernmost stretches of Texas coastline. Finer-scale spatial simulations for the north-central Gulf coast exhibited sub-regional differences in storm strength and frequency with coastal position and latitude. The overall pattern of storm incidence in the Gulf basin indicates that the disturbance regime of coastal areas varies greatly along the coast, inland from the coast, and temporally over the period of record. Field and modeling studies of coastal ecosystems will benefit from this retrospective analysis of hurricane incidence and intensity both on a local or regional basis. ?? 2009 The Society of Wetland Scientists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wetlands","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1672/08-36.1","issn":"02775212","usgsCitation":"Doyle, T., 2009, Hurricane frequency and landfall distribution for coastal wetlands of the Gulf coast, USA: Wetlands, v. 29, no. 1, p. 35-43, https://doi.org/10.1672/08-36.1.","startPage":"35","endPage":"43","numberOfPages":"9","costCenters":[],"links":[{"id":215464,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1672/08-36.1"},{"id":243272,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a32b7e4b0c8380cd5ea11","contributors":{"authors":[{"text":"Doyle, T.W. 0000-0001-5754-0671","orcid":"https://orcid.org/0000-0001-5754-0671","contributorId":16783,"corporation":false,"usgs":true,"family":"Doyle","given":"T.W.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":450299,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70035371,"text":"70035371 - 2009 - What you should know about land-cover data","interactions":[],"lastModifiedDate":"2017-04-03T15:07:42","indexId":"70035371","displayToPublicDate":"2009-01-01T00:00:00","publicationYear":"2009","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"What you should know about land-cover data","docAbstract":"Wildlife biologists are using land-characteristics data sets for a variety of applications. Many kinds of landscape variables have been characterized and the resultant data sets or maps are readily accessible. Often, too little consideration is given to the accuracy or traits of these data sets, most likely because biologists do not know how such data are compiled and rendered, or the potential pitfalls that can be encountered when applying these data. To increase understanding of the nature of land-characteristics data sets, I introduce aspects of source information and data-handling methodology that include the following: ambiguity of land characteristics; temporal considerations and the dynamic nature of the landscape; type of source data versus landscape features of interest; data resolution, scale, and geographic extent; data entry and positional problems; rare landscape features; and interpreter variation. I also include guidance for determining the quality of land-characteristics data sets through metadata or published documentation, visual clues, and independent information. The quality or suitability of the data sets for wildlife applications may be improved with thematic or spatial generalization, avoidance of transitional areas on maps, and merging of multiple data sources. Knowledge of the underlying challenges in compiling such data sets will help wildlife biologists to better assess the strengths and limitations and determine how best to use these data.
","language":"English","publisher":"The Wildlife Society","doi":"10.2193/2007-509","issn":"0022541X","usgsCitation":"Gallant, A.L., 2009, What you should know about land-cover data: Journal of Wildlife Management, v. 73, no. 5, p. 796-805, https://doi.org/10.2193/2007-509.","productDescription":"10 p.","startPage":"796","endPage":"805","numberOfPages":"10","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":243077,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215285,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2193/2007-509"}],"volume":"73","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-12-13","publicationStatus":"PW","scienceBaseUri":"505bd047e4b08c986b32ed7b","contributors":{"authors":[{"text":"Gallant, Alisa L. 0000-0002-3029-6637 gallant@usgs.gov","orcid":"https://orcid.org/0000-0002-3029-6637","contributorId":2940,"corporation":false,"usgs":true,"family":"Gallant","given":"Alisa","email":"gallant@usgs.gov","middleInitial":"L.","affiliations":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true},{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":450366,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}