{"pageNumber":"23","pageRowStart":"550","pageSize":"25","recordCount":676,"records":[{"id":70023906,"text":"70023906 - 2002 - Layered, massive and thin sediments on Mars: Possible Late Noachian to Late Amazonian tephra?","interactions":[],"lastModifiedDate":"2022-01-19T12:26:14.998915","indexId":"70023906","displayToPublicDate":"2002-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1785,"text":"Geological Society Special Publication","active":true,"publicationSubtype":{"id":10}},"title":"Layered, massive and thin sediments on Mars: Possible Late Noachian to Late Amazonian tephra?","docAbstract":"Data from instruments on the currently orbiting Mars Global Surveyor (MGS) suggest that as an alternative interpretation to lacustrine deposits, widespread sediments on Mars may be tephra deposits of variable age, formed in part by volcano-ice interactions. The materials are often associated with outcrops of mapped geological units that have each been previously interpreted as volcanic ash deposits with identified, but unconfirmed possible volcanic vents. Spectral investigation indicates that although some outcrops are basaltic, many show moderate to high concentrations of andesite, a composition at which large explosive eruptions may be possible. In addition, many outcrops are in areas suspected to be water/ice rich. On Earth, magma and groundwater can react to create violent explosive eruptions. Observations from MGS support a pyroclastic mechanism of deposition and show some morphologies consistent with volcano-ice interactions, including subaqueous eruptions. Perhaps MGS data are finally producing more definitive evidence of the widespread tephra that were predicted to be likely in the reduced atmospheric pressure of Mars.","language":"English","publisher":"The Geological Society","doi":"10.1144/GSL.SP.2002.202.01.14","usgsCitation":"Chapman, M.G., 2002, Layered, massive and thin sediments on Mars: Possible Late Noachian to Late Amazonian tephra?: Geological Society Special Publication, no. 202, p. 273-293, https://doi.org/10.1144/GSL.SP.2002.202.01.14.","productDescription":"21 p.","startPage":"273","endPage":"293","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":231973,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"202","noUsgsAuthors":false,"publicationDate":"2003-02-03","publicationStatus":"PW","scienceBaseUri":"505a4593e4b0c8380cd67420","contributors":{"authors":[{"text":"Chapman, M. G.","contributorId":105737,"corporation":false,"usgs":true,"family":"Chapman","given":"M.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":399288,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":50621,"text":"ofr2002131 - 2002 - Geology, Geochemistry and Geophysics of Sedimentary Rock-Hosted Au Deposits in P.R. China","interactions":[],"lastModifiedDate":"2012-02-02T00:10:05","indexId":"ofr2002131","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2002","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2002-131","title":"Geology, Geochemistry and Geophysics of Sedimentary Rock-Hosted Au Deposits in P.R. China","docAbstract":"This is the second report concerning results of a joint project between the U.S. Geological Survey and the Tianjin Geological Academy to study sedimentary rock-hosted Au deposits in P.R. China. Since the 1980s, Chinese geologists have devoted a large-scale exploration and research effort to the deposits. As a result, there are more than 20 million oz of proven Au reserves in sedimentary rock-hosted Au deposits in P.R. China. Additional estimated and inferred resources are present in over 160 deposits and occurrences, which are undergoing exploration. This makes China second to Nevada in contained ounces of Au in Carlin-type deposits. It is likely that many of the Carlin-type Au ore districts in China, when fully developed, could have resource potential comparable to the multi-1,000-tonne Au resource in northern Nevada. The six chapters of this report describe sedimentary rock-hosted Au deposits that were visited during the project. Chapters 1 and 2 provide an overview of sedimentary rock-hosted Au deposits and Carlin-type Au deposits and also provide a working classification for the sedimentary rock-hosted Au deposits. Chapters 3, 4, and 5 provide descriptions that were compiled from the literature in China in three main areas: the Dian-Qian-Gui, the Qinling fold belt, and Middle-Lower Yangtze River areas. Chapter 6 contains a weights-of-evidence (WofE), GIS-based mineral assessment of sedimentary rock-hosted Au deposits in the Qinling fold belt and Dian-Qian-Gui areas. Appendices contain scanned aeromagnetic (Appendix I) and gravity (Appendix II) geophysical maps of south and central China. Data tables of the deposits (Appendix III) also are available in the first report as an interactive database at http://geopubs.wr.usgs.gov/open-file/of98-466/. Geochemical analysis of ore samples from the deposits visited are contained in Appendix IV.","language":"ENGLISH","publisher":"Geological Survey (U.S.)","doi":"10.3133/ofr2002131","isbn":"0607990589","usgsCitation":"Peters, S., 2002, Geology, Geochemistry and Geophysics of Sedimentary Rock-Hosted Au Deposits in P.R. China (Version 1.0): U.S. Geological Survey Open-File Report 2002-131, 1 CD-ROM : col. ill., col. maps ; 4 3/4 in., https://doi.org/10.3133/ofr2002131.","productDescription":"1 CD-ROM : col. ill., col. maps ; 4 3/4 in.","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":162289,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":11529,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2002/of02-131/","linkFileType":{"id":5,"text":"html"}}],"edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c6f7","contributors":{"authors":[{"text":"Peters, Stephen G. speters@usgs.gov","contributorId":2793,"corporation":false,"usgs":true,"family":"Peters","given":"Stephen G.","email":"speters@usgs.gov","affiliations":[{"id":596,"text":"U.S. Geological Survey National Center","active":false,"usgs":true}],"preferred":false,"id":241943,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":5211290,"text":"5211290 - 2001 - Access to bird population data","interactions":[],"lastModifiedDate":"2018-09-21T10:36:13","indexId":"5211290","displayToPublicDate":"2009-06-09T09:23:19","publicationYear":"2001","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Access to bird population data","docAbstract":"Access to bird population data is critical for effective conservation planning and implementation.  Although a tremendous volume of baseline data exists, it is often diffusely distributed and inaccessible to the resource manager and decision maker.  A mechanism that facilitates assembly, documentation and delivery of avian data in a user-friendly manner is needed in order to integrate bird-related information resources across agencies and organizations. To address this fundamental need, the National Biological Information Infrastructure (NBII), in partnership with the U.S. Geological Survey's Patuxent Wildlife Research Center and the U.S. Fish and Wildlife Service, is developing a web-based interactive system that will focus on access to bird population and habitat data used in bird management and conservation.  This system, known as the NBII Bird Conservation Node, will support planning and evaluation of bird conservation activities within the context of the North American Bird Conservation Initiative (NABCI), a framework for collaboration among organizations interested in bird conservation across North America.  Initial development of the NBII Bird Conservation Node will focus on creating a prototype mapping application that will provide interactive access to data from the North American Breeding Bird Survey, the Colonial Waterbird Survey, the Breeding Waterfowl Population and Habitat Survey, and the Atlantic Flyway Mid-winter Waterfowl Survey.  This prototype mapping application, to be available on-line at http://www.nbii.gov by Sep 2001, will lay the foundation for establishment of a Migratory Bird Data Center at Patuxent Wildlife Research Center, and will provide an opportunity for linking to and establishing partnerships with other sources of bird population and habitat data available over the Internet.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Abstracts of papers presented at the 119th stated meeting of the American Ornithologists' Union in conjunction with the 20th annual meeting of the Society of Canadian Ornithologists Societe des Ornithologistes du Canada 16 - 18 August at the University of Washington, Seattle","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","usgsCitation":"Martin, E., Peterjohn, B., and Koneff, M., 2001, Access to bird population data, chap. <i>of</i> Abstracts of papers presented at the 119th stated meeting of the American Ornithologists' Union in conjunction with the 20th annual meeting of the Society of Canadian Ornithologists Societe des Ornithologistes du Canada 16 - 18 August at the University of Washington, Seattle, p. 155-156.","productDescription":"168","startPage":"155","endPage":"156","numberOfPages":"168","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true},{"id":37226,"text":"Core Science Analytics, Synthesis, and Libraries","active":true,"usgs":true}],"links":[{"id":200901,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b12e4b07f02db6a2567","contributors":{"authors":[{"text":"Martin, E.","contributorId":76425,"corporation":false,"usgs":true,"family":"Martin","given":"E.","affiliations":[],"preferred":false,"id":330610,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peterjohn, B.G.","contributorId":25255,"corporation":false,"usgs":true,"family":"Peterjohn","given":"B.G.","email":"","affiliations":[],"preferred":false,"id":330608,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Koneff, M.D.","contributorId":37031,"corporation":false,"usgs":true,"family":"Koneff","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":330609,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":32348,"text":"ofr01388 - 2001 - Tampa Bay Integrated Science Pilot Study: interactive mapping system (IMS)","interactions":[],"lastModifiedDate":"2012-02-02T00:09:11","indexId":"ofr01388","displayToPublicDate":"2002-05-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-388","title":"Tampa Bay Integrated Science Pilot Study: interactive mapping system (IMS)","language":"ENGLISH","doi":"10.3133/ofr01388","usgsCitation":"Johnston, J., Yates, K., Bourgeois, P., and Martucci, A., 2001, Tampa Bay Integrated Science Pilot Study: interactive mapping system (IMS): U.S. Geological Survey Open-File Report 2001-388, 2 p., https://doi.org/10.3133/ofr01388.","productDescription":"2 p.","costCenters":[],"links":[{"id":3332,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://gulfsci.usgs.gov/tampabay/reports/ofrims/index.html ","linkFileType":{"id":5,"text":"html"}},{"id":161335,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adde4b07f02db686d78","contributors":{"authors":[{"text":"Johnston, Jimmy","contributorId":75978,"corporation":false,"usgs":true,"family":"Johnston","given":"Jimmy","email":"","affiliations":[],"preferred":false,"id":208338,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yates, Kimberly","contributorId":70427,"corporation":false,"usgs":true,"family":"Yates","given":"Kimberly","affiliations":[],"preferred":false,"id":208337,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bourgeois, Pete","contributorId":53005,"corporation":false,"usgs":true,"family":"Bourgeois","given":"Pete","email":"","affiliations":[],"preferred":false,"id":208336,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Martucci, Antonio","contributorId":52236,"corporation":false,"usgs":true,"family":"Martucci","given":"Antonio","email":"","affiliations":[],"preferred":false,"id":208335,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":32356,"text":"ofr01439 - 2001 - User's guide to SSARRMENU","interactions":[],"lastModifiedDate":"2012-02-02T00:09:11","indexId":"ofr01439","displayToPublicDate":"2002-05-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-439","title":"User's guide to SSARRMENU","docAbstract":"The U.S. Geological Survey, in cooperation with Pierce County Department of Public Works, Washington, has developed an operational tool called the Puyallup Flood-Alert System to alert users of impending floods in the Puyallup River Basin. The system acquires and incorporates meteorological and hydrological data into the Streamflow Synthesis and Reservoir Regulation (SSARR) hydrologic flow-routing model to simulate floods in the Puyallup River Basin. SSARRMENU is the user-interactive graphical interface between the user, the input and output data, and the SSARR model. In a companion cooperative project with Pierce County, the SSARR model for the Puyallup River Basin was calibrated and validated. The calibrated model is accessed through SSARRMENU, which has been specifically programed for the Puyallup River and the needs of Pierce County. SSARRMENU automates the retrieval of data from ADAPS (Automated DAta Processing System, the U.S. Geological Survey?s real-time hydrologic database), formats the data for use with SSARR, initiates SSARR model runs, displays alerts for impending floods, and provides utilities to display the simulated and observed data. An on-screen map of the basin and a series of menu items provide the user wi","language":"ENGLISH","doi":"10.3133/ofr01439","usgsCitation":"Mastin, M.C., and Le, T., 2001, User's guide to SSARRMENU: U.S. Geological Survey Open-File Report 2001-439, 35 p., https://doi.org/10.3133/ofr01439.","productDescription":"35 p.","costCenters":[],"links":[{"id":161286,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":3339,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/ofr01439/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a16e4b07f02db603e30","contributors":{"authors":[{"text":"Mastin, M. C.","contributorId":90782,"corporation":false,"usgs":true,"family":"Mastin","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":208399,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Le, Thanh","contributorId":21598,"corporation":false,"usgs":true,"family":"Le","given":"Thanh","email":"","affiliations":[],"preferred":false,"id":208398,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":30675,"text":"ds72 - 2001 - 2000 Multibeam sonar survey of Crater Lake, Oregon - Data, GIS, images, and movies","interactions":[],"lastModifiedDate":"2022-07-06T21:54:54.688706","indexId":"ds72","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":310,"text":"Data Series","code":"DS","onlineIssn":"2327-638X","printIssn":"2327-0271","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"72","title":"2000 Multibeam sonar survey of Crater Lake, Oregon - Data, GIS, images, and movies","docAbstract":"In the summer of 2000, the U.S. Geological Survey, Pacific Seafloor Mapping Project in cooperation with the National Park Service, and the Center for Coastal and Ocean Mapping, University of New Hampshire used a state-of-the-art multibeam sonar system to collect high-resolution bathymetry and calibrated, co-registered acoustic backscatter to support both biological and geological research in the Crater Lake area. This interactive CD-ROM contains the multibeam bathymetry and acoustic backscatter data, along with an ESRI ArcExplorer project (and software), images, and movies.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ds72","usgsCitation":"Gardner, J.V., and Dartnell, P., 2001, 2000 Multibeam sonar survey of Crater Lake, Oregon - Data, GIS, images, and movies (Version 1.0): U.S. Geological Survey Data Series 72, HTML Document, https://doi.org/10.3133/ds72.","productDescription":"HTML Document","onlineOnly":"N","additionalOnlineFiles":"Y","temporalStart":"2000-07-28","temporalEnd":"2000-08-03","costCenters":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"links":[{"id":163918,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":12401,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/dds/dds-72/","linkFileType":{"id":5,"text":"html"}},{"id":403111,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46635.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Oregon","otherGeospatial":"Crater Lake","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.08625793457031,\n              42.896088552971065\n            ],\n            [\n              -122.05535888671875,\n              42.91620643817353\n            ],\n            [\n              -122.03750610351564,\n              42.95742757637941\n            ],\n            [\n              -122.06977844238281,\n              42.982548873720326\n            ],\n            [\n              -122.12196350097656,\n              42.98204654832571\n            ],\n            [\n              -122.18101501464844,\n              42.95742757637941\n            ],\n            [\n              -122.1782684326172,\n              42.92877678228981\n            ],\n            [\n              -122.15011596679688,\n              42.90162162590301\n            ],\n            [\n              -122.08625793457031,\n              42.896088552971065\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd491ce4b0b290850eee61","contributors":{"authors":[{"text":"Gardner, James V.","contributorId":93035,"corporation":false,"usgs":true,"family":"Gardner","given":"James","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":203689,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dartnell, Peter 0000-0002-9554-729X pdartnell@usgs.gov","orcid":"https://orcid.org/0000-0002-9554-729X","contributorId":2688,"corporation":false,"usgs":true,"family":"Dartnell","given":"Peter","email":"pdartnell@usgs.gov","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":203688,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":31517,"text":"ofr01501 - 2001 - Assessment method for epithermal gold deposits in northeast Washington State using weights-of-evidence GIS modeling","interactions":[],"lastModifiedDate":"2022-09-09T18:33:28.890076","indexId":"ofr01501","displayToPublicDate":"2002-03-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-501","title":"Assessment method for epithermal gold deposits in northeast Washington State using weights-of-evidence GIS modeling","docAbstract":"The weights-of-evidence analysis, a quantitative mineral resource mapping tool, is used to delineate favorable areas for epithermal gold deposits and to predict future exploration activity of the mineral industry for similar deposits in a four-county area (222 x 277 km), including the Okanogan and Colville National Forests of northeastern Washington. Modeling is applied in six steps: (1) building a spatial digital database, (2) extracting predictive evidence for a particular deposit, based on an exploration model, (3) calculating relative weights for each predictive map, (4) combining the geologic evidence maps to predict the location of undiscovered mineral resources and (5) measuring the intensity of recent exploration activity by use of mining claims on federal lands, and (6) combining mineral resource and exploration activity into an assessment model of future mining activity.\r\n\r\n\r\nThe analysis is accomplished on a personal computer using ArcView GIS platform with Spatial Analyst and Weights-of-Evidence software. In accord with the descriptive model for epithermal gold deposits, digital geologic evidential themes assembled include lithologic map units, thrust faults, normal faults, and igneous dikes. Similarly, geochemical evidential themes include placer gold deposits and gold and silver analyses from stream sediment (silt) samples from National Forest lands. Fifty mines, prospects, or occurrences of epithermal gold deposits, the training set, define the appropriate a really-associated terrane. The areal (or spatial) correlation of each evidential theme with the training set yield predictor theme maps for lithology, placer sites and normal faults. The weights-of-evidence analysis disqualified the thrust fault, dike, and gold and silver silt analyses evidential themes because they lacked spatial\r\ncorrelation with the training set. The decision to accept or reject evidential themes as predictors is assisted by considering probabilistic data consisting of weights and contrast values calculated for themes according to areal correlation with the training sites. Predictor themes having acceptable weights and contrast values are combined into a preliminary model to predict the locations of undiscovered epithermal gold deposits. This model facilitates ranking of tracts as non-permissive, permissive or favorable categories based on exclusionary, passive, and active criteria through evaluation of probabilistic data provided by interaction of predictor themes. The method is very similar to the visual inspection method of drawing conclusions from anomalies on a manually overlain system of maps. This method serves as a model for future mineral assessment procedures because of its objective nature.\r\n\r\n\r\nTo develop a model to predict future exploration activity, the locations of lode mining claims were summarized for 1980, 1985, 1990, and 1996. Land parcels containing historic claims were identified either as those with mining claims present in 1980 or valid claims present in 1985. Current claim parcels were identified as those containing valid lode claims in either 1990 or 1996. A consistent parcel contains both historic and current claims.\r\n\r\n\r\nThe epithermal gold and mining claim activity models were combined into an assessment (or mineral resource-activity) model to assist in land use decisions by providing a prediction of mineral exploration activity on federal land in the next decade. Ranks in the assessment model are: (1) no activity, (2) low activity, (3) low to moderate activity, (4) moderate activity and (5) high activity.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr01501","usgsCitation":"Boleneus, D., Raines, G.L., Causey, J., Bookstrom, A., Frost, T.P., and Hyndman, P.C., 2001, Assessment method for epithermal gold deposits in northeast Washington State using weights-of-evidence GIS modeling: U.S. Geological Survey Open-File Report 2001-501, 52 p., https://doi.org/10.3133/ofr01501.","productDescription":"52 p.","costCenters":[],"links":[{"id":161166,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":406478,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46491.htm","linkFileType":{"id":5,"text":"html"}},{"id":2696,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/of01-501/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Washington","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -120,\n              48\n            ],\n            [\n              -117,\n              48\n            ],\n            [\n              -117,\n              49\n            ],\n            [\n              -120,\n              49\n            ],\n            [\n              -120,\n              48\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abbe4b07f02db6729bb","contributors":{"authors":[{"text":"Boleneus, D. E.","contributorId":87577,"corporation":false,"usgs":true,"family":"Boleneus","given":"D. E.","affiliations":[],"preferred":false,"id":206276,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Raines, G. L.","contributorId":90720,"corporation":false,"usgs":true,"family":"Raines","given":"G.","middleInitial":"L.","affiliations":[],"preferred":false,"id":206277,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Causey, J. D.","contributorId":64652,"corporation":false,"usgs":true,"family":"Causey","given":"J. D.","affiliations":[],"preferred":false,"id":206275,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bookstrom, A. A.","contributorId":94681,"corporation":false,"usgs":true,"family":"Bookstrom","given":"A. A.","affiliations":[],"preferred":false,"id":206278,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Frost, T. P.","contributorId":49797,"corporation":false,"usgs":true,"family":"Frost","given":"T.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":206274,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hyndman, P. C.","contributorId":96257,"corporation":false,"usgs":true,"family":"Hyndman","given":"P.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":206279,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":31256,"text":"ofr01107 - 2001 - Core descriptions, core photographs, physical property logs and surface textural data of sediment cores recovered from the continental shelf of the Monterey Bay National Marine Sanctuary during the research cruises M-1-95-MB, P-2-95-MB, and P-1-97-MB","interactions":[],"lastModifiedDate":"2014-02-05T15:10:45","indexId":"ofr01107","displayToPublicDate":"2001-12-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2001-107","title":"Core descriptions, core photographs, physical property logs and surface textural data of sediment cores recovered from the continental shelf of the Monterey Bay National Marine Sanctuary during the research cruises M-1-95-MB, P-2-95-MB, and P-1-97-MB","docAbstract":"In response to the 1992 creation of the Monterey Bay National Marine Sanctuary (MBNMS), the United States Geological Survey (USGS) initiated a multiyear investigation of the Sanctuary continental margin. As part of the investigative effort, this report summarizes the shipboard procedures, subsequent laboratory analyses, and data results from three seafloor sampling cruises conducted on the continental shelf between Monterey peninsula, CA and San Francisco, CA. The cruises were conducted in 1995 aboard the NOAA Ship McArthur (M-1-95-MB) and in 1995 and 1997 aboard the R/V Point Sur (P-2-95-MB and P-1-97-MB). Scientists and representatives from the Environmental Protection Agency (EPA), the National Oceanic and Atmospheric Administration (NOAA), the California Department of Fish and Game (CDFG), the University of California Santa Cruz (UCSC), and the San Jose State University Moss Landing Marine Laboratory (SJSU-MLML) supported the research effort.\n\nIn this report we present sediment descriptions, sediment textural data, physical property logs, station metadata, and photographs of subcores from a total of three hundred and eighty four sample stations. At these sites either a box corer, MultiCore™r, grab sampler or a combination of these sampling devices were used to collect the sea floor sediments. The report is presented in an interactive web-based format with each mapped core station linked to the corresponding description and photo, and to a spreadsheet of surface texture and other sampling data.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr01107","usgsCitation":"Orzech, K.M., Dahl, W.E., and Edwards, B.D., 2001, Core descriptions, core photographs, physical property logs and surface textural data of sediment cores recovered from the continental shelf of the Monterey Bay National Marine Sanctuary during the research cruises M-1-95-MB, P-2-95-MB, and P-1-97-MB: U.S. Geological Survey Open-File Report 2001-107, 21 p., https://doi.org/10.3133/ofr01107.","productDescription":"21 p.","numberOfPages":"21","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":160879,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr01107.PNG"},{"id":2852,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2001/0107/","linkFileType":{"id":5,"text":"html"}},{"id":282054,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2001/0107/pdf/maintext.pdf"},{"id":282055,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2001/0107/pdf/indexmap.pdf"}],"country":"United States","state":"California","otherGeospatial":"Monterey Bay National Marine Sanctuary","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.0,36.5 ], [ -123.0,37.916667 ], [ -121.75,37.916667 ], [ -121.75,36.5 ], [ -123.0,36.5 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad9e4b07f02db6852ed","contributors":{"authors":[{"text":"Orzech, Kevin M.","contributorId":38640,"corporation":false,"usgs":true,"family":"Orzech","given":"Kevin","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":205495,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dahl, Wendy E.","contributorId":25079,"corporation":false,"usgs":true,"family":"Dahl","given":"Wendy","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":205494,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Edwards, Brian D. bedwards@usgs.gov","contributorId":3161,"corporation":false,"usgs":true,"family":"Edwards","given":"Brian","email":"bedwards@usgs.gov","middleInitial":"D.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":205493,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":30905,"text":"wri014040 - 2001 - Pond-aquifer interaction at South Pond of Lake Cochituate, Natick, Massachusetts","interactions":[],"lastModifiedDate":"2012-02-02T00:09:07","indexId":"wri014040","displayToPublicDate":"2001-09-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4040","title":"Pond-aquifer interaction at South Pond of Lake Cochituate, Natick, Massachusetts","docAbstract":"A U.S. Army facility on a peninsula in South Pond of Lake Cochituate was designated a Superfund site by the U.S. Environmental Protection Agency in 1994 because contaminated ground water was detected at the facility, which is near the Natick Springvale public-supply wellfield. The interaction between South Pond and the underlying aquifer controls ground-water flow patterns near the pond and determines the source of water withdrawn from the wellfield.A map of the bathymetry and the thickness of fine-grained pond-bottom sediments was prepared on the basis of fathometer, ground-penetrating radar, and continuous seismic-reflection surveys. The geophysical data indicate that the bottom sediments are fine grained toward the middle of the pond but are coarse grained in shoreline areas. Natick Springvale wellfield, which consists of three active public-supply wells adjacent to South Pond, is 2,200 feet downgradient from the boundary of the Army facility. That part of South Pond between the Natick Springvale wellfield and the Army facility is 18 feet deep with at least 14 feet of fine-grained sediment beneath the pond-bottom. Water levels from the pond and underlying sediments indicate a downward vertical gradient and the potential for infiltration of pond water near the wellfield. Head differences between the pond and the wellfield ranged from 1.66 to 4.41 feet during this study. The velocity of downward flow from South Pond into the pond-bottom sediments, determined on the basis of temperature profiles measured over a diurnal cycle at two locations near the wellfield, was 0.5 and 1.0 feet per day. These downward velocities resulted in vertical hydraulic conductivities of 1.1 and 2.9 feet per day for the pond-bottom sediments.Naturally occurring stable isotopes of oxygen and hydrogen were used as tracers of pond water and ground water derived from recharge of precipitation, two potential sources of water to a well in a pond-aquifer setting. The isotopic composition of pond water varied seasonally and was distinctly different from the isotopic composition of ground water. The isotopic composition of shallow water beneath and adjacent to South Pond near the wellfield corresponds to the temporal variation of pond water, indicating that nearly all water at shallow depths was derived from pond water. A two-component mixing model based on the average stable isotope values of the source waters indicated that 64 ?15 percent at the 95-percent confidence interval of the water withdrawn at the public-supply wells was derived from the pond; pond water accounted for most of the uncertainty in the result. The rate of infiltration of pond water into the aquifer and discharging to the wellfield was 1.0 million gallons per day at the average pumping rate.","language":"ENGLISH","doi":"10.3133/wri014040","usgsCitation":"Friesz, P.J., and Church, P.E., 2001, Pond-aquifer interaction at South Pond of Lake Cochituate, Natick, Massachusetts: U.S. Geological Survey Water-Resources Investigations Report 2001-4040, 42 p., 1 over-size sheet. , https://doi.org/10.3133/wri014040.","productDescription":"42 p., 1 over-size sheet. ","costCenters":[],"links":[{"id":2840,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri014040","linkFileType":{"id":5,"text":"html"}},{"id":160730,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad7e4b07f02db68437a","contributors":{"authors":[{"text":"Friesz, Paul J. 0000-0002-4660-2336 pfriesz@usgs.gov","orcid":"https://orcid.org/0000-0002-4660-2336","contributorId":1075,"corporation":false,"usgs":true,"family":"Friesz","given":"Paul","email":"pfriesz@usgs.gov","middleInitial":"J.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":204327,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Church, Peter E.","contributorId":99178,"corporation":false,"usgs":true,"family":"Church","given":"Peter","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":204328,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70201978,"text":"70201978 - 2001 - Planetary Interactive GIS-on-the-Web Analyzable Database (PIGWAD)","interactions":[],"lastModifiedDate":"2019-02-04T10:28:27","indexId":"70201978","displayToPublicDate":"2001-08-31T10:27:34","publicationYear":"2001","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Planetary Interactive GIS-on-the-Web Analyzable Database (PIGWAD)","docAbstract":"<p>The United States Geological Survey (USGS) in Flagstaff, Arizona is producing a Web-based, user-friendly interface that integrates powerful Geographic Information Systems (GIS) statistical and spatial relational tools for analyses of planetary datasets. The interface, known as “Planetary Interactive GIS-on-the-Web Analyzable Database” (PIGWAD), provides database support for the research and academic planetary science communities, particularly for geologic mapping and other surface-related investigations. </p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the XXth International Cartographic Conference","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"XXth International Cartographic Conference","conferenceDate":"August 6-10, 2001","conferenceLocation":"Beijing, China","language":"English","publisher":"International Cartographic Conference","usgsCitation":"Hare, T.M., and Tanaka, K.L., 2001, Planetary Interactive GIS-on-the-Web Analyzable Database (PIGWAD), <i>in</i> Proceedings of the XXth International Cartographic Conference, Beijing, China, August 6-10, 2001, 8 p.","productDescription":"8 p.","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":360963,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":360962,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://icaci.org/files/documents/ICC_proceedings/ICC2001/icc2001/defult.htm"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hare, Trent M. 0000-0001-8842-389X thare@usgs.gov","orcid":"https://orcid.org/0000-0001-8842-389X","contributorId":3188,"corporation":false,"usgs":true,"family":"Hare","given":"Trent","email":"thare@usgs.gov","middleInitial":"M.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":756408,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tanaka, Kenneth L. ktanaka@usgs.gov","contributorId":610,"corporation":false,"usgs":true,"family":"Tanaka","given":"Kenneth","email":"ktanaka@usgs.gov","middleInitial":"L.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":756409,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023424,"text":"70023424 - 2001 - Mean and modal ϵ in the deaggregation of probabilistic ground motion","interactions":[],"lastModifiedDate":"2015-05-12T13:46:40","indexId":"70023424","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Mean and modal ϵ in the deaggregation of probabilistic ground motion","docAbstract":"<p id=\"p-1\">An important element of probabilistic seismic-hazard analysis (PSHA) is the incorporation of ground-motion uncertainty from the earthquake sources. The standard normal variate&nbsp;<i>ϵ</i>&nbsp;measures the difference between any specified spectral-acceleration level, or SA<sub>0</sub>, and the estimated median spectral acceleration from each probabilistic source. In this article, mean and modal values of&nbsp;<i>ϵ</i>&nbsp;for a specified SA<sub>0</sub>&nbsp;are defined and computed from all sources considered in the USGS 1996 PSHA maps. Contour maps of&nbsp;<i>ϵ</i>&nbsp;are presented for the conterminous United States for 1-, 0.3-, and 0.2-sec SA<sub>0</sub>&nbsp;and for peak horizontal acceleration, PGA<sub>0</sub>&nbsp;corresponding to a 2% probability of exceedance (PE) in 50 yr, or mean annual rate of exceedance,&nbsp;<i>r</i>, of 0.000404.</p>\n<p id=\"p-2\">Mean and modal&nbsp;<i>ϵ</i>&nbsp;exhibit a wide variation geographically for any specified PE. Modal&nbsp;<i>ϵ</i>&nbsp;for the 2% in 50 yr PE exceeds 2 near the most active western California faults, is less than &ndash;1 near some less active faults of the western United States (principally in the Basin and Range), and may be less than 0 in areal fault zones of the central and eastern United States (CEUS). This geographic variation is useful for comparing probabilistic ground motions with ground motions from scenario earthquakes on dominating faults, often used in seismic-resistant provisions of building codes. An interactive seismic-hazard deaggregation menu item has been added to the USGS probabilistic seismic-hazard analysis Web site,&nbsp;<i><a href=\"http://geohazards.cr.usgs.gov/eq/\">http://geohazards.cr.usgs.gov/eq/</a>,</i>&nbsp;allowing visitors to compute mean and modal distance, magnitude, and&nbsp;<i>ϵ</i>&nbsp;corresponding to ground motions having mean return times from 250 to 5000 yr for any site in the United States.</p>","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0120000289","issn":"00371106","usgsCitation":"Harmsen, S., 2001, Mean and modal ϵ in the deaggregation of probabilistic ground motion: Bulletin of the Seismological Society of America, v. 91, no. 6, p. 1537-1552, https://doi.org/10.1785/0120000289.","productDescription":"16 p.","startPage":"1537","endPage":"1552","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":232645,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":207581,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120000289"}],"volume":"91","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a52b6e4b0c8380cd6c60b","contributors":{"authors":[{"text":"Harmsen, Stephen C. harmsen@usgs.gov","contributorId":1795,"corporation":false,"usgs":true,"family":"Harmsen","given":"Stephen C.","email":"harmsen@usgs.gov","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":false,"id":397617,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70180468,"text":"70180468 - 2001 - Quaternary geology, Cold Bay and False Pass quadrangles, Alaska Peninsula","interactions":[{"subject":{"id":70180468,"text":"70180468 - 2001 - Quaternary geology, Cold Bay and False Pass quadrangles, Alaska Peninsula","indexId":"70180468","publicationYear":"2001","noYear":false,"title":"Quaternary geology, Cold Bay and False Pass quadrangles, Alaska Peninsula"},"predicate":"IS_PART_OF","object":{"id":38272,"text":"pp1633 - 2001 - Geologic studies in Alaska by the U.S. Geological Survey, 1999","indexId":"pp1633","publicationYear":"2001","noYear":false,"title":"Geologic studies in Alaska by the U.S. Geological Survey, 1999"},"id":1}],"isPartOf":{"id":38272,"text":"pp1633 - 2001 - Geologic studies in Alaska by the U.S. Geological Survey, 1999","indexId":"pp1633","publicationYear":"2001","noYear":false,"title":"Geologic studies in Alaska by the U.S. Geological Survey, 1999"},"lastModifiedDate":"2021-08-30T21:03:50.009945","indexId":"70180468","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"subseriesTitle":"1633","title":"Quaternary geology, Cold Bay and False Pass quadrangles, Alaska Peninsula","docAbstract":"<p><span>Recent mapping and interpretation of Quaternary geologic features has improved our understanding of the interaction between volcanic, glacial, and tectonic activity in the Cold Bay and False Pass 1:250,000-scale quadrangles on the Alaska Peninsula. The glacial and volcanic record of the map area strongly suggests that continental-shelf glaciations and two massive volcanic centers were the dominant controls over landscape development during Pleistocene time. Ancestral Morzhovoi and Emmons Volcanoes were major impediments to flow of shelf glaciers during much of the Pleistocene. Our mapping suggests that the area around Emmons Volcano may have also been an important source area for glaciers during this period. Our data further indicate that Frosty Volcano developed late in the Pleistocene, having had no apparent impact on early Brooks Lake glacial advances but serving as a source area for later glacial advances during late Brooks Lake time. We also believe that major Holocene eruptions of Frosty Volcano have yielded multiple debris and ash flows resulting in the construction of a new south summit cone that filled an earlier crater. Frosty Volcano was the source area for multiple Holocene glacial advances, and its flanks preserve the best record of Neoglacial activity in the map area.</span></p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Geologic studies in Alaska by the U.S. Geological Survey, 1999","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Denver, CO","doi":"10.3133/70180468","usgsCitation":"Wilson, F.H., and Weber, F.R., 2001, Quaternary geology, Cold Bay and False Pass quadrangles, Alaska Peninsula: U.S. Geological Survey Professional Paper, 21 p., https://doi.org/10.3133/70180468.","productDescription":"21 p.","startPage":"51","endPage":"71","numberOfPages":"21","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":334364,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":334363,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1633/pp1633_report.pdf#page=59","text":"Start page in larger work"}],"country":"United States","state":"Alaska","otherGeospatial":"Alaska Peninsula, Cold Bay quadrangle, False Pass quadrangle","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -153.72070312499997,\n              59.17592824927136\n            ],\n            [\n              -157.060546875,\n              58.768200159239576\n            ],\n            [\n              -159.609375,\n              56.70450561416937\n            ],\n            [\n              -163.388671875,\n              55.32914440840507\n            ],\n            [\n              -162.158203125,\n              54.67383096593114\n            ],\n            [\n              -157.85156249999997,\n              55.97379820507658\n            ],\n            [\n              -153.6328125,\n              58.722598828043374\n            ],\n            [\n              -153.72070312499997,\n              59.17592824927136\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58905ef4e4b072a7ac0cad53","contributors":{"authors":[{"text":"Wilson, Frederic H. 0000-0003-1761-6437 fwilson@usgs.gov","orcid":"https://orcid.org/0000-0003-1761-6437","contributorId":67174,"corporation":false,"usgs":true,"family":"Wilson","given":"Frederic","email":"fwilson@usgs.gov","middleInitial":"H.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":661721,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Weber, Florence R.","contributorId":17621,"corporation":false,"usgs":true,"family":"Weber","given":"Florence","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":661722,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023361,"text":"70023361 - 2001 - Mars Color Imager (MARCI) on the Mars Climate Orbiter","interactions":[],"lastModifiedDate":"2022-12-01T16:43:02.683531","indexId":"70023361","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2317,"text":"Journal of Geophysical Research E: Planets","active":true,"publicationSubtype":{"id":10}},"title":"Mars Color Imager (MARCI) on the Mars Climate Orbiter","docAbstract":"<p><span>The Mars Color Imager, or MARCI, experiment on the Mars Climate Orbiter (MCO) consists of two cameras with unique optics and identical focal plane assemblies (FPAs), Data Acquisition System (DAS) electronics, and power supplies. Each camera is characterized by small physical size and mass (∼6×6×12 cm, including baffle; &lt;500 g), low power requirements (&lt;2.5 W, including power supply losses), and high science performance (1000×1000 pixel, low noise). The Wide Angle (WA) camera will have the capability to map Mars in five visible and two ultraviolet spectral bands at a resolution of better than 8 km/pixel under the worst case downlink data rate. Under better downlink conditions the WA will provide kilometer-scale global maps of atmospheric phenomena such as clouds, hazes, dust storms, and the polar hood. Limb observations will provide additional detail on atmospheric structure at 1/3 scale-height resolution. The Medium Angle (MA) camera is designed to study selected areas of Mars at regional scale. From 400 km altitude its 6° FOV, which covers ∼40 km at 40 m/pixel, will permit all locations on the planet except the poles to be accessible for image acquisitions every two mapping cycles (roughly 52 sols). Eight spectral channels between 425 and 1000 nm provide the ability to discriminate both atmospheric and surface features on the basis of composition. The primary science objectives of MARCI are to (1) observe Martian atmospheric processes at synoptic scales and mesoscales, (2) study details of the interaction of the atmosphere with the surface at a variety of scales in both space and time, and (3) examine surface features characteristic of the evolution of the Martian climate over time. MARCI will directly address two of the three high-level goals of the Mars Surveyor Program: Climate and Resources. Life, the third goal, will be addressed indirectly through the environmental factors associated with the other two goals.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/1999JE001145","issn":"01480227","usgsCitation":"Malin, M.C., Bell, J., Calvin, W., Clancy, R., Haberle, R., James, P., Lee, S., Thomas, P., and Caplinger, M., 2001, Mars Color Imager (MARCI) on the Mars Climate Orbiter: Journal of Geophysical Research E: Planets, v. 106, no. E8, p. 17651-17672, https://doi.org/10.1029/1999JE001145.","productDescription":"22 p.","startPage":"17651","endPage":"17672","costCenters":[],"links":[{"id":478976,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/1999je001145","text":"Publisher Index Page"},{"id":232204,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars","volume":"106","issue":"E8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5207e4b0c8380cd6c0e4","contributors":{"authors":[{"text":"Malin, M. C.","contributorId":68830,"corporation":false,"usgs":false,"family":"Malin","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":397396,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bell, J.F. III","contributorId":97612,"corporation":false,"usgs":true,"family":"Bell","given":"J.F.","suffix":"III","email":"","affiliations":[],"preferred":false,"id":397400,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Calvin, W.","contributorId":75700,"corporation":false,"usgs":true,"family":"Calvin","given":"W.","affiliations":[],"preferred":false,"id":397397,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Clancy, R.T.","contributorId":61595,"corporation":false,"usgs":true,"family":"Clancy","given":"R.T.","email":"","affiliations":[],"preferred":false,"id":397395,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Haberle, R.M.","contributorId":94461,"corporation":false,"usgs":true,"family":"Haberle","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":397399,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"James, P.B.","contributorId":88913,"corporation":false,"usgs":true,"family":"James","given":"P.B.","email":"","affiliations":[],"preferred":false,"id":397398,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Lee, S.W.","contributorId":29163,"corporation":false,"usgs":true,"family":"Lee","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":397393,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Thomas, P.C.","contributorId":32690,"corporation":false,"usgs":true,"family":"Thomas","given":"P.C.","affiliations":[],"preferred":false,"id":397394,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Caplinger, M.A.","contributorId":7878,"corporation":false,"usgs":true,"family":"Caplinger","given":"M.A.","affiliations":[],"preferred":false,"id":397392,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70023503,"text":"70023503 - 2001 - Modern sedimentation on the shoreface and inner continental shelf at Wrightsville Beach, North Carolina, U.S.A","interactions":[],"lastModifiedDate":"2022-12-20T17:35:44.990133","indexId":"70023503","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2451,"text":"Journal of Sedimentary Research","onlineIssn":"1938-3681","printIssn":"1527-1404","active":true,"publicationSubtype":{"id":10}},"title":"Modern sedimentation on the shoreface and inner continental shelf at Wrightsville Beach, North Carolina, U.S.A","docAbstract":"<p>The geologic framework and surficial morphology of the shoreface and inner continental shelf off the Wrightsville Beach, North Carolina, barrier island were mapped using high-resolution sidescan-sonar, bathymetric, and seismic-reflection surveying techniques, a suite of over 200 diver vibracores, and extensive seafloor observations by divers. The inner shelf is a sediment-starved, active surface of marine erosion; modern sediments, where present, form a patchy veneer over Tertiary and Quaternary units. The lithology of the underlying units exerts a primary control on the distribution, texture, and composition of surficial sediments, as well as inner-shelf bathymetry.</p><p>The shoreface is dominated by a linear, cross-shore morphology of rippled scour depressions (RSDs) extending from just seaward of the surf zone onto the inner shelf. On the upper shoreface, the RSDs are incised up to 1 m below surrounding areas of fine sand, and have an asymmetric cross section that is steeper-sided to the north. On the inner shelf, the RSDs have a similar but more subdued cross-sectional profile. The depressions are floored primarily by shell hash and quartz gravel. Vibracore data show a thick (up to 1.5 m) sequence of RSD sediments that unconformably overlies ancient coastal lithosomes. In this sediment-starved inner shelf setting, rippled scour depressions probably form initially on preexisting coarse-sediment substrates such as modern lag deposits of paleofluvial channel lithosomes or ancient tidal inlet thalwegs. Interannual observations of seafloor morphologic change and the longer-term record contained in vibracores suggest that the present seafloor morphology is either relatively stable or represents a recurring, preferential morphologic state to which the seafloor returns after storm-induced perturbations. The apparent stability is interpreted to be the result of interactions at several scales that contribute to a repeating, self-reinforcing pattern of forcing and sedimentary response which ultimately causes the RSDs to be maintained as sediment-starved bedforms responding to both along-shore and across-shore flows.</p><p>Sediment accumulation from over 30 years of extensive beach nourishment at Wrightsville Beach appears to have exceeded the local shoreface accommodation space, resulting in the \"leaking\" of beach and shoreface sediment to the inner shelf. A macroscopically identifiable beach nourishment sediment on the shoreface and inner shelf was used to identify the decadal-scale pattern of sediment dispersal. The nourishment sediment is present in a seaward-thinning wedge that extends from the beach over a kilometer onto the inner shelf to waters depths of 14 m. This wedge is best developed offshore of the shoreline segment that has received the greatest volume of beach nourishment.</p>","largerWorkTitle":"Society for Sedimentary Geology","language":"English","doi":"10.1306/032101710958","issn":"15271404","usgsCitation":"Thieler, R., Pilkey, O., Cleary, W., and Schwab, W.C., 2001, Modern sedimentation on the shoreface and inner continental shelf at Wrightsville Beach, North Carolina, U.S.A: Journal of Sedimentary Research, v. 71, no. 6, p. 958-970, https://doi.org/10.1306/032101710958.","productDescription":"13 p.","startPage":"958","endPage":"970","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":232570,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North Carolina","otherGeospatial":"Wrightsville Beach","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -77.81562203476128,\n              34.18743466787062\n            ],\n            [\n              -77.81493538925368,\n              34.18388461948598\n            ],\n            [\n              -77.80858391830607,\n              34.18629866864269\n            ],\n            [\n              -77.80463570663616,\n              34.19254647506095\n            ],\n            [\n              -77.79931420395098,\n              34.19921975702705\n            ],\n            [\n              -77.7915894419882,\n              34.2084478936936\n            ],\n            [\n              -77.78077477524015,\n              34.22491405796035\n            ],\n            [\n              -77.76893014023032,\n              34.23910644406463\n            ],\n            [\n              -77.76961678573794,\n              34.24237035450281\n            ],\n            [\n              -77.77236336776905,\n              34.24336369342993\n            ],\n            [\n              -77.78352135727124,\n              34.2288881671807\n            ],\n            [\n              -77.79141778061111,\n              34.2171072260782\n            ],\n            [\n              -77.79450768539637,\n              34.21597162662759\n            ],\n            [\n              -77.79485100814986,\n              34.21157103419219\n            ],\n            [\n              -77.80446404525973,\n              34.19879381863886\n            ],\n            [\n              -77.81562203476128,\n              34.18743466787062\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"71","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5ca0e4b0c8380cd6fe30","contributors":{"authors":[{"text":"Thieler, R.E.","contributorId":59988,"corporation":false,"usgs":true,"family":"Thieler","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":397853,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pilkey, O.H. Jr.","contributorId":20931,"corporation":false,"usgs":true,"family":"Pilkey","given":"O.H.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":397852,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cleary, W.J.","contributorId":65254,"corporation":false,"usgs":true,"family":"Cleary","given":"W.J.","email":"","affiliations":[],"preferred":false,"id":397854,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schwab, W. C.","contributorId":78740,"corporation":false,"usgs":true,"family":"Schwab","given":"W.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":397855,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70023517,"text":"70023517 - 2001 - A comparison of U.S. geological survey seamless elevation models with shuttle radar topography mission data","interactions":[],"lastModifiedDate":"2022-05-06T13:19:32.521773","indexId":"70023517","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"A comparison of U.S. geological survey seamless elevation models with shuttle radar topography mission data","docAbstract":"Elevation models produced from Shuttle Radar Topography Mission (SRTM) data will be the most comprehensive, consistently processed, highest resolution topographic dataset ever produced for the Earth's land surface. Many applications that currently use elevation data will benefit from the increased availability of data with higher accuracy, quality, and resolution, especially in poorly mapped areas of the globe. SRTM data will be produced as seamless data, thereby avoiding many of the problems inherent in existing multi-source topographic databases. Serving as precursors to SRTM datasets, the U.S. Geological Survey (USGS) has produced and is distributing seamless elevation datasets that facilitate scientific use of elevation data over large areas. GTOPO30 is a global elevation model with a 30 arc-second resolution (approximately 1-kilometer). The National Elevation Dataset (NED) covers the United States at a resolution of 1 arc-second (approximately 30-meters). Due to their seamless format and broad area coverage, both GTOPO30 and NED represent an advance in the usability of elevation data, but each still includes artifacts from the highly variable source data used to produce them. The consistent source data and processing approach for SRTM data will result in elevation products that will be a significant addition to the current availability of seamless datasets, specifically for many areas outside the U.S. One application that demonstrates some advantages that may be realized with SRTM data is delineation of land surface drainage features (watersheds and stream channels). Seamless distribution of elevation data in which a user interactively specifies the area of interest and order parameters via a map server is already being successfully demonstrated with existing USGS datasets. Such an approach for distributing SRTM data is ideal for a dataset that undoubtedly will be of very high interest to the spatial data user community.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"International Geoscience and Remote Sensing Symposium (IGARSS)","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"2001 International Geoscience and Remote Sensing Symposium (IGARSS 2001)","conferenceDate":"Jul 9-13, 2001","conferenceLocation":"Sydney, NSW, Australia","language":"English","usgsCitation":"Gesch, D., Williams, J., and Miller, W., 2001, A comparison of U.S. geological survey seamless elevation models with shuttle radar topography mission data, <i>in</i> International Geoscience and Remote Sensing Symposium (IGARSS), v. 2, Sydney, NSW, Australia, Jul 9-13, 2001, p. 754-756.","productDescription":"3 p.","startPage":"754","endPage":"756","numberOfPages":"3","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":232174,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e354e4b0c8380cd45f8d","contributors":{"authors":[{"text":"Gesch, D. 0000-0002-8992-4933","orcid":"https://orcid.org/0000-0002-8992-4933","contributorId":98500,"corporation":false,"usgs":true,"family":"Gesch","given":"D.","affiliations":[],"preferred":false,"id":397904,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, J.","contributorId":76270,"corporation":false,"usgs":true,"family":"Williams","given":"J.","affiliations":[],"preferred":false,"id":397902,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Miller, W.","contributorId":93184,"corporation":false,"usgs":true,"family":"Miller","given":"W.","affiliations":[],"preferred":false,"id":397903,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70023685,"text":"70023685 - 2001 - U.S. Geological Survey programs and investigations related to soil and water conservation","interactions":[],"lastModifiedDate":"2014-08-15T11:03:13","indexId":"70023685","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2072,"text":"International Journal of Sediment Research","active":true,"publicationSubtype":{"id":10}},"title":"U.S. Geological Survey programs and investigations related to soil and water conservation","docAbstract":"The U.S. Geological Survey has a rich tradition of collecting hydrologic data, especially for fluxes of water and suspended sediment, that provide a foundation for studies of soil and water conservation. Applied and basic research has included investigations of the effects of land use on rangelands, croplands, and forests; hazards mapping; derivation of flood and drought frequency, and other statistics related to streamflow and reservoir storage; development and application of models of rainfall-runoff relations, chemical quality, and sediment movement; and studies of the interactive processes of overland and channel flow with vegetation. Networks of streamgaging stations and (or) sampling sites within numerous drainage basins are yielding information that extends databases and enhances the ability to use those data for interpretive studies.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Sediment Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","issn":"10016279","usgsCitation":"Osterkamp, W.R., and Gray, J.R., 2001, U.S. Geological Survey programs and investigations related to soil and water conservation: International Journal of Sediment Research, v. 16, no. 3, p. 421-429.","productDescription":"9 p.","startPage":"421","endPage":"429","costCenters":[{"id":502,"text":"Office of Surface Water","active":true,"usgs":true}],"links":[{"id":232228,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbafee4b08c986b32843f","contributors":{"authors":[{"text":"Osterkamp, W. R.","contributorId":46044,"corporation":false,"usgs":true,"family":"Osterkamp","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":398443,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gray, J. R.","contributorId":63372,"corporation":false,"usgs":true,"family":"Gray","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":398444,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70024037,"text":"70024037 - 2001 - Linking hyporheic flow and nitrogen cycling near the Willamette River: A large river in Oregon, USA","interactions":[],"lastModifiedDate":"2018-12-03T09:55:55","indexId":"70024037","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Linking hyporheic flow and nitrogen cycling near the Willamette River: A large river in Oregon, USA","docAbstract":"Several approaches were used to characterize ground water/surface water interactions near the Willamette River - A large (ninth order) river in Oregon, USA. A series of potentiometric surface maps demonstrated the presence of highly dynamic hydraulic gradients between rivers and the adjacent aquifer. Hyporheic zone gradients extended on the order of hundreds of meters. River gains and losses at the river stretch scale (tens of kilometers) were consistent with fluxes implied by the potentiometric surface maps, and apparently reflect regional ground water/surface water interactions. Gains and losses of up to 5-10% of streamflow were observed at this scale. On the river reach scale (1-2 km), gains and losses on the order of 5% of streamflow were interpreted as representing primarily local hyporheic exchange. Isotopic and chemical data collected from shallow hyporheic zone wells demonstrated interaction between regional ground water and river water. The origin of sampled hyporheic zone water ranged from a mixture dominated by regional ground water to water containing 100% river water. The common assumption that ground and river water mix primarily in the river channel is not applicable in this system. Isotopic and chemical data also indicated that significant (nearly complete) vegetative nitrate uptake and/or nitrate reduction occurred in water from 4 of 12 hyporheic zone sites. In these cases, it was primarily nitrate transported to the hyporheic zone in regional ground water that was removed from solution. Isotopes of water and nitrate indicated that hyporheic zone water sampled at two sites was composed of water originating as river water and demonstrated that significant vegetative nitrate uptake and nitrate reduction occurred along these hyporheic zone flowpaths. Thus, the hyporheic zone may, in some instances, serve to remove nitrate from river water. Additional investigations with chemical tools and microbial enzyme assays were conducted at one hyporheic site. A strong vertical redox gradient was observed, with nitrate-limited denitrification potential in deeper sediment and both nitrification and denitrification potential in shallower sediment. Since nitrogen cycling is strongly affected by redox conditions, nitrogen cycling in the hyporheic zone of this large-river system likely is affected by dynamics of ground water/surface water interactions that control fluxes of nitrogen and other redox species to hyporheic zone sediment.","language":"English","publisher":"Elsevier","doi":"10.1016/S0022-1694(01)00335-3","issn":"00221694","usgsCitation":"Hinkle, S., Duff, J., Triska, F., Laenen, A., Gates, E., Bencala, K., Wentz, D., and Silva, S.R., 2001, Linking hyporheic flow and nitrogen cycling near the Willamette River: A large river in Oregon, USA: Journal of Hydrology, v. 244, no. 3-4, p. 157-180, https://doi.org/10.1016/S0022-1694(01)00335-3.","productDescription":"24 p.","startPage":"157","endPage":"180","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":231523,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":206997,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0022-1694(01)00335-3"}],"country":"United States","state":"Oregon","otherGeospatial":"Willamette River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -124,\n              43.25\n            ],\n            [\n              -121.75,\n              43.25\n            ],\n            [\n              -121.75,\n              45.75\n            ],\n            [\n              -124,\n              45.75\n            ],\n            [\n              -124,\n              43.25\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"244","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a47d4e4b0c8380cd679e9","contributors":{"authors":[{"text":"Hinkle, S.R.","contributorId":74778,"corporation":false,"usgs":true,"family":"Hinkle","given":"S.R.","email":"","affiliations":[],"preferred":false,"id":399765,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Duff, J.H.","contributorId":60377,"corporation":false,"usgs":true,"family":"Duff","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":399763,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Triska, F.J.","contributorId":69560,"corporation":false,"usgs":true,"family":"Triska","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":399764,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Laenen, A.","contributorId":92827,"corporation":false,"usgs":true,"family":"Laenen","given":"A.","email":"","affiliations":[],"preferred":false,"id":399767,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gates, E.B.","contributorId":24955,"corporation":false,"usgs":true,"family":"Gates","given":"E.B.","email":"","affiliations":[],"preferred":false,"id":399761,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bencala, K.E.","contributorId":105312,"corporation":false,"usgs":true,"family":"Bencala","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":399768,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wentz, D.A.","contributorId":85206,"corporation":false,"usgs":true,"family":"Wentz","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":399766,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Silva, S. R.","contributorId":27474,"corporation":false,"usgs":true,"family":"Silva","given":"S.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":399762,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":45050,"text":"wri20014083 - 2001 - Surface-water, water-quality, and ground-water assessment of the Municipio of Comerio, Puerto Rico, 1997-99","interactions":[],"lastModifiedDate":"2012-03-08T17:16:16","indexId":"wri20014083","displayToPublicDate":"1994-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2001-4083","title":"Surface-water, water-quality, and ground-water assessment of the Municipio of Comerio, Puerto Rico, 1997-99","docAbstract":"To meet the increasing need for a safe and adequate supply of water in the municipio of Comerio, an integrated surface-water, water-quality, and ground-water assessment of the area was conducted. The major results of this study and other important hydrologic and water-quality features were compiled in a Geographic Information System, and are presented in two 1:30,000-scale map plates to facilitate interpretation and use of the diverse water-resource data. \r\n\r\nBecause the supply of safe drinking water was a critical issue during recent dry periods, the surface-water assessment portion of this study focused on analysis of low-flow characteristics in local streams and rivers. Low-flow characteristics were evaluated at one continuous-record gaging station based on graphical curve-fitting techniques and log-Pearson Type III frequency curves. Estimates of low-flow characteristics for 13 partial-record stations were generated using graphical-correlation techniques. Flow-duration characteristics for the continuous- and partial-record stations were estimated using the relation curves developed for the low-flow study. Stream low-flow statistics document the general hydrology under current land- and water-use conditions. \r\n\r\nA sanitary quality survey of streams utilized 24 sampling stations to evaluate about 84 miles of stream channels with drainage to or within the municipio of Comerio. River and stream samples for fecal coliform and fecal streptococcus analyses were collected on two occasions at base-flow conditions to evaluate the sanitary quality of streams. Bacteriological analyses indicate that about 27 miles of stream reaches within the municipio of Comerio may have fecal coliform bacteria concentrations above the water-quality goal established by the Puerto Rico Environmental Quality Board (Junta de Calidad Ambiental de Puerto Rico) for inland surface waters. Sources of fecal contamination may include illegal discharge of sewage to storm-water drains, malfunction of sanitary sewer ejectors, clogged and leaking sewage pipes, septic tank leakage, unfenced livestock, runoff from livestock pens, and seepage from pits containing animal wastes. Long-term fecal coliform data at two sampling stations on the Rio de la Plata indicate that since 1984, the geometric mean of five consecutive samples commonly has been at or below 2,000 colonies per 100 milliliters (established as the sanitary quality goal in Puerto Rico for Class SD type waters). At the sampling station upstream of Comerio, the geometric mean concentration has been near 500 colonies per 100 milliliters; downstream of the town of Comerio, the geometric mean concentration has been near 2,000 colonies per 100 milliliters concentration. The data at these stations also indicate that fecal coliform concentrations increase commonly above 2,000 colonies per 100 milliliters during storm-runoff events, ranging from 1,000 to 100,000 colonies per 100 milliliters at both stations. \r\n\r\nGeologic, topographic, soil, hydrogeologic, and streamflow data were used to divide the municipio of Comerio into five hydrogeologic terranes. The integrated database was then used to evaluate the ground-water development potential of each hydrogeologic terrane. Analysis suggests that areas with slopes greater than 15 degrees have relatively low ground-water development potential. Fractures may be important locally in enhancing the water-bearing properties in the hydrogeologic terranes containing igneous rocks. \r\n\r\nThe integrated hydrogeologic approach used in this study can serve as an important tool for regulatory agencies of Puerto Rico and the municipio of Comerio to evaluate the ground-water resource development potential, examine ground- and surface-water interaction, and determine the effect of land-use practices on ground-water quantity and quality. \r\n\r\nStream low-flow statistics document the general hydrology under current land and water uses. Low-flow characteristics may substantially change as a re","language":"ENGLISH","doi":"10.3133/wri20014083","collaboration":"In cooperation with the\r\nMUNICIPIO OF COMERIO, PUERTO RICO, OFFICE OF THE MAYOR","usgsCitation":"Rodríguez-Martínez, J., Gómez-Gómez, F., Santiago-Rivera, L., and Oliveras-Feliciano, M., 2001, Surface-water, water-quality, and ground-water assessment of the Municipio of Comerio, Puerto Rico, 1997-99: U.S. Geological Survey Water-Resources Investigations Report 2001-4083, v, 41 p. : map ; 28 cm., https://doi.org/10.3133/wri20014083.","productDescription":"v, 41 p. : map ; 28 cm.","temporalStart":"1997-01-01","temporalEnd":"1999-12-31","costCenters":[{"id":156,"text":"Caribbean Water Science Center","active":true,"usgs":true}],"links":[{"id":170972,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":9254,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wri01-4083/","linkFileType":{"id":5,"text":"html"}}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 67.25,17.75 ], [ 67.25,18.50 ], [ 66.75,18.50 ], [ 66.75,17.75 ], [ 67.25,17.75 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae5e4b07f02db68a628","contributors":{"authors":[{"text":"Rodríguez-Martínez, Jesús","contributorId":48149,"corporation":false,"usgs":true,"family":"Rodríguez-Martínez","given":"Jesús","affiliations":[],"preferred":false,"id":230992,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gómez-Gómez, Fernando","contributorId":31366,"corporation":false,"usgs":true,"family":"Gómez-Gómez","given":"Fernando","affiliations":[],"preferred":false,"id":230991,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Santiago-Rivera, Luis","contributorId":83888,"corporation":false,"usgs":true,"family":"Santiago-Rivera","given":"Luis","email":"","affiliations":[],"preferred":false,"id":230994,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Oliveras-Feliciano, M. L.","contributorId":54959,"corporation":false,"usgs":true,"family":"Oliveras-Feliciano","given":"M. L.","affiliations":[],"preferred":false,"id":230993,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70243616,"text":"70243616 - 2000 - Interactive 3-D visualization: A tool for seafloor navigation, exploration and engineering","interactions":[],"lastModifiedDate":"2023-05-17T13:15:36.969943","indexId":"70243616","displayToPublicDate":"2002-08-06T11:11:07","publicationYear":"2000","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Interactive 3-D visualization: A tool for seafloor navigation, exploration and engineering","docAbstract":"<p><span>Recent years have seen remarkable advances in sonar technology, positioning capabilities, and computer processing power that have revolutionized the way we image the seafloor. The massive amounts of data produced by these systems present many challenges but also offer tremendous opportunities in terms of visualization and analysis. The authors have developed a suite of interactive 3D visualization and exploration tools specifically designed to facilitate the interpretation and analysis of very large (10s to 100s of megabytes), complex, multi-component spatial data sets. If properly georeferenced and treated, these complex data sets can be presented in a natural and intuitive manner that allows the integration of multiple components each at their inherent level of resolution and without compromising the quantitative nature of the data. Artificial sun-illumination, shading, and 3D rendering can be used with digital bathymetric data (DTMs) to form natural looking and easily interpretable, yet quantitative, landscapes. Color can be used to represent depth or other parameters (like backscatter or sediment properties) which can be draped over the DTM, or high resolution imagery can be texture mapped on bathymetric data. When combined with interactive analytical tools, this environment has facilitated the use of multibeam sonar and other data sets in a range of geologic, environmental, fisheries, and engineering applications.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"OCEANS 2000 MTS/IEEE conference and exhibition. Conference proceedings","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"OCEANS 2000 MTS/IEEE Conference and Exhibition","conferenceDate":"September 11-14, 2000","language":"English","publisher":"Marine Technology Society","doi":"10.1109/OCEANS.2000.881373","usgsCitation":"Mayer, L.A., Paton, M., Gee, L., Gardner, S.V., and Ware, C., 2000, Interactive 3-D visualization: A tool for seafloor navigation, exploration and engineering, <i>in</i> OCEANS 2000 MTS/IEEE conference and exhibition. Conference proceedings, v. 2, September 11-14, 2000, p. 913-919, https://doi.org/10.1109/OCEANS.2000.881373.","productDescription":"7 p.","startPage":"913","endPage":"919","costCenters":[],"links":[{"id":417038,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Mayer, L. A.","contributorId":105776,"corporation":false,"usgs":true,"family":"Mayer","given":"L.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":872626,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Paton, M.","contributorId":305394,"corporation":false,"usgs":false,"family":"Paton","given":"M.","email":"","affiliations":[],"preferred":false,"id":872627,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gee, L.","contributorId":101066,"corporation":false,"usgs":true,"family":"Gee","given":"L.","email":"","affiliations":[],"preferred":false,"id":872628,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gardner, S. V.","contributorId":305395,"corporation":false,"usgs":false,"family":"Gardner","given":"S.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":872629,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ware, C.","contributorId":305396,"corporation":false,"usgs":false,"family":"Ware","given":"C.","email":"","affiliations":[],"preferred":false,"id":872630,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":22312,"text":"ofr00460 - 2000 - Reprocessing of multi-channel seismic-reflection data collected in the Beaufort Sea","interactions":[],"lastModifiedDate":"2024-06-13T16:34:05.088895","indexId":"ofr00460","displayToPublicDate":"2001-08-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-460","title":"Reprocessing of multi-channel seismic-reflection data collected in the Beaufort Sea","docAbstract":"Contained on this set of two CD-ROMs are stacked and migrated multi-channel seismic-reflection data for 65 lines recorded in the Beaufort Sea by the United States Geological Survey in 1977. All data were reprocessed by the USGS using updated processing methods resulting in improved interpretability. Each of the two CD-ROMs contains the following files: 1) 65 files containing the digital seismic data in standard, SEG-Y format; 2) 1 file containing navigation data for the 65 lines in standard SEG-P1 format; 3) an ASCII text file with cross-reference information for relating the sequential trace numbers on each line to cdp numbers and shotpoint numbers; 4) 2 small scale graphic images (stacked and migrated) of a segment of line 722 in Adobe Acrobat (R) PDF format; 5) a graphic image of the location map, generated from the navigation file; 6) PlotSeis, an  MS-DOS Application that allows PC users to interactively view the  SEG-Y files; 7) a PlotSeis documentation file; and 8) an explanation of the processing used to create the final seismic sections (this document).","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00460","issn":"0094-9140","usgsCitation":"Agena, W., Lee, M.W., and Hart, P., 2000, Reprocessing of multi-channel seismic-reflection data collected in the Beaufort Sea: U.S. Geological Survey Open-File Report 2000-460, 2 CD-ROMs, https://doi.org/10.3133/ofr00460.","productDescription":"2 CD-ROMs","costCenters":[],"links":[{"id":154437,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":1403,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-460/","linkFileType":{"id":5,"text":"html"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a25e4b07f02db60efbd","contributors":{"authors":[{"text":"Agena, Warren F.","contributorId":67079,"corporation":false,"usgs":true,"family":"Agena","given":"Warren F.","affiliations":[],"preferred":false,"id":188013,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lee, Myung W. mlee@usgs.gov","contributorId":779,"corporation":false,"usgs":true,"family":"Lee","given":"Myung","email":"mlee@usgs.gov","middleInitial":"W.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":188011,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hart, P. E.","contributorId":10773,"corporation":false,"usgs":true,"family":"Hart","given":"P. E.","affiliations":[],"preferred":false,"id":188012,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":21891,"text":"ofr00483 - 2000 - Interaction between ground water and surface water in Taylor Slough and vicinity, Everglades National Park, South Florida: Study methods and appendixes","interactions":[],"lastModifiedDate":"2022-05-12T21:35:40.31506","indexId":"ofr00483","displayToPublicDate":"2001-07-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-483","title":"Interaction between ground water and surface water in Taylor Slough and vicinity, Everglades National Park, South Florida: Study methods and appendixes","docAbstract":"The data presented in this report are products of an investigation that quantified interactions between ground water and surface water in Taylor Slough in Everglades National Park. Determining the extent of hydrologic interactions between wetland surface water and ground water in Taylor Slough is important because the balance of freshwater flow in the lower part of the Slough is uncertain. Although freshwater flows through Taylor Slough are quite small in comparison to Shark Slough (the larger of the two major sloughs in Everglades National Park), flows through Taylor Slough are especially important to the ecology of estuarine mangrove embayments of northeastern Florida Bay. Also, wetland and ground- water interactions must be quantified if their role in affecting water quality is to be determined. \r\n\r\nIn order to define basic hydrologic characteristics of the wetland, depth of wetland peat was mapped, and hydraulic conductivity and vertical hydraulic gradients in peat were determined. During specific time periods representing both wet and dry conditions in the area, the distribution of major ions, nutrients, and water stable isotopes throughout the slough were determined. The purpose of chemical measurements was to identify an environmental tracer could be used to quantify ground-water discharge.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00483","issn":"0566-8174","usgsCitation":"Harvey, J.W., Jackson, J.M., Mooney, R.H., and Choi, J., 2000, Interaction between ground water and surface water in Taylor Slough and vicinity, Everglades National Park, South Florida: Study methods and appendixes: U.S. Geological Survey Open-File Report 2000-483, vi, 67 p., https://doi.org/10.3133/ofr00483.","productDescription":"vi, 67 p.","costCenters":[{"id":27821,"text":"Caribbean-Florida Water Science Center","active":true,"usgs":true}],"links":[{"id":51381,"rank":299,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0483/report.pdf","text":"Report","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 00-483"},{"id":400600,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_49799.htm"},{"id":154149,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0483/report-thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Taylor Slough","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -80.66299438476562,\n              25.351472502592568\n            ],\n            [\n              -80.57373046875,\n              25.351472502592568\n            ],\n            [\n              -80.57373046875,\n              25.401724200763503\n            ],\n            [\n              -80.66299438476562,\n              25.401724200763503\n            ],\n            [\n              -80.66299438476562,\n              25.351472502592568\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","contact":"<p><a href=\"https://www.usgs.gov/centers/car-fl-water\" data-mce-href=\"https://www.usgs.gov/centers/car-fl-water\">Caribbean-Florida Water Science Center</a><br>U.S. Geological Survey<br>3321 College Avenue<br>Davie, FL 33314</p><p><a href=\"../contact\" data-mce-href=\"../contact\">Contact Pubs Warehouse</a></p>","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49b7e4b07f02db5cc210","contributors":{"authors":[{"text":"Harvey, Judson W. 0000-0002-2654-9873 jwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2654-9873","contributorId":1796,"corporation":false,"usgs":true,"family":"Harvey","given":"Judson","email":"jwharvey@usgs.gov","middleInitial":"W.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":186133,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jackson, J. M.","contributorId":95503,"corporation":false,"usgs":true,"family":"Jackson","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":186135,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mooney, R. H.","contributorId":95504,"corporation":false,"usgs":true,"family":"Mooney","given":"R.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":186136,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Choi, Jungyill","contributorId":70792,"corporation":false,"usgs":true,"family":"Choi","given":"Jungyill","email":"","affiliations":[],"preferred":false,"id":186134,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":21705,"text":"ofr00350 - 2000 - Cruise report RV Ocean Surveyor cruise O-1-00-GM the bathymetry and acoustic backscatter of the Pinnacles area, northern Gulf of Mexico May 23, through June 10, 2000 Venice, LA to Venice, LA","interactions":[],"lastModifiedDate":"2021-09-09T20:21:55.089104","indexId":"ofr00350","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-350","title":"Cruise report RV Ocean Surveyor cruise O-1-00-GM the bathymetry and acoustic backscatter of the Pinnacles area, northern Gulf of Mexico May 23, through June 10, 2000 Venice, LA to Venice, LA","docAbstract":"<p>An extensive deep (~100 m) reef tract occurs on the Mississippi-Alabama outer continental shelf (OCS). The tract, known as \"The Pinnacles\", is apparently part of a sequence of drowned reef complexes along the \"40-fathom\" shelf edge of the northern Gulf of Mexico (Ludwick and Walton, 1957). It is critical to determine the accurate geomorphology of deep-reefs because of their importance as benthic habitats for fisheries. The Pinnacles were mapped by Ludwick and Walton (1957) using a single-beam echo sounder but the spatial extent and morphology were interpreted from a series of widely separated, poorly navigated bathymetric profiles. Other recent studies, supported by Minerals Management Service (MMS), used towed sidescan sonars and single-channel seismic-reflection profiling. None of the existing studies provide the quality of geomorphic data necessary for reasonable habitat studies. The fish faunas of shallow hermatypic reefs have been well studied, but those of deep ahermatypic reefs have relatively ignored. The ecology of deep ahermatypic reefs is fundamentally different from hermatipic reefs because autochthonous intracellular symbiotic zooxanthellae (the carbon source for hermatypic corals) do not form the base of the trophic web. Instead, exogenous plankton, transported to the reef by currents, serves as the primary carbon source. Deep OCS reefs also lie below the practical working depths for SCUBA; consequently, remote investigations from a ship or in situ investigations using submersibles or ROVs are required. Community structure and trophodynamics of demersal fishes of the Pinnacles are presently the focus of USGS reseach. A goal of the research is to answer questions concerning the relataive roles played by geomorphology and surficial geology in the interaction with and control of biological differentiation. OCS reefs are important because we now know that such areas are important coral reef fish havens, key spawning 2 sites, and a critical early larval and juvenile habitats for economically important sport/food fishes. Also, deep-reef ecosystems as well as the fish populations they sustain are impacted by intensive oil-field development. It is now known that deep OCS reefs function as a key source of re-population (via seasonal and ontogenetic migration) of already heavily impacted inshore reefs. A reflection of this realization is the recent closure by the Gulf States Fisheries Management Council of a 600 mi 2 area of the Florida Middle Grounds (another unmapped major \"40-fathom\" OCS reef complex) to commercial fishing to preserve grouper spawning aggregations.</p>\n<br/>\n<p>It is known that the Pinnacles reefs support a lush fauna of ahermatypic hard corals, soft corals, black corals, sessile crinoids and sponges—together forming a living habitat for a well-developed fish fauna. The fish fauna comprises typical Caribbean reef fishes and Carolinian shelf fishes, plus epipelagic fishes, and a few deep-sea fishes. The base of the megafaunal invertebrate food web is plankton, borne by essentially continuous semi-laminar currents flowing predominantly out of the SW, up, along and across the shelf edge. These currents are intercepted by pinnacles reefs, which lie roughly in two linear tracts, parallel to the coastline (see fig. 1 in report). USGS research initiated in 1997 (Sulak et al., in progress) has demonstrated that the Pinnacles reef fish fauna is dominated by planktivorous fishes. Ongoing food habits, trophic web and stable isotope analyses by the USGS are reinforcing a basic picture of deep OCS reefs as ecosystems based on exogenous current-borne plankton. Long-term current meter deployments have demonstrated that the >3 m, <16m relief of the Pinnacles reefs disrupts the prevailing currents, inducing local complexity (F. Kelly, Texas A&M Univ., pers. comm.) favorable to plankton and planktivores. Geodetically accurate bathymetry maps, coregistered with calibrated acoustic backscatter maps, are critical to delineate benthic biotopes, and are essential to correlate biological community differentiation with the physical environment. Previous mapping of the Pinnacles area using the TAMU towed single-beam sidescan system (Anonymous., 1999) employed technology with inherent deficiencies in backscatter calibration, bathymetric precision, and geo-referencing. The resulting bathymetric interpretations of TAMU data are further degraded by ship-track-parallel artifacts that obliterate geomorphology rendering them inadequate to provide high-resolution mapping of individual target reefs (typical maximum relief 15 m, diameter 200-500 m). The sidescan-sonar surveys of the area (Laswell et al., 1990) suffer many of the same deficiencies as the TAMU data so they add no quantitative and little qualitative information about the geomorphology and surficial geology.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr00350","issn":"0566-8174","usgsCitation":"Gardner, J.V., Sulak, K.J., Dartnell, P., Hellequin, L., Calder, B.R., and Mayer, L.A., 2000, Cruise report RV Ocean Surveyor cruise O-1-00-GM the bathymetry and acoustic backscatter of the Pinnacles area, northern Gulf of Mexico May 23, through June 10, 2000 Venice, LA to Venice, LA: U.S. Geological Survey Open-File Report 2000-350, 35 p., https://doi.org/10.3133/ofr00350.","productDescription":"35 p.","numberOfPages":"36","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":281601,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr00350.jpg"},{"id":389028,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_32312.htm"},{"id":1152,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/0350/","linkFileType":{"id":5,"text":"html"}},{"id":51237,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0350/pdf/of00-350.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","otherGeospatial":"Gulf of Mexico, the Pinnacles area","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -88.5,\n              29.1670\n            ],\n            [\n              -87.417,\n              29.1670\n            ],\n            [\n              -87.417,\n              29.5830\n            ],\n            [\n              -88.5,\n              29.5830\n            ],\n            [\n              -88.5,\n              29.1670\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad0e4b07f02db6808c3","contributors":{"authors":[{"text":"Gardner, James V.","contributorId":93035,"corporation":false,"usgs":true,"family":"Gardner","given":"James","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":185339,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sulak, Kenneth J. 0000-0002-4795-9310 ksulak@usgs.gov","orcid":"https://orcid.org/0000-0002-4795-9310","contributorId":2217,"corporation":false,"usgs":true,"family":"Sulak","given":"Kenneth","email":"ksulak@usgs.gov","middleInitial":"J.","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":185334,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dartnell, Peter 0000-0002-9554-729X pdartnell@usgs.gov","orcid":"https://orcid.org/0000-0002-9554-729X","contributorId":2688,"corporation":false,"usgs":true,"family":"Dartnell","given":"Peter","email":"pdartnell@usgs.gov","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":185335,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hellequin, Laurent","contributorId":24804,"corporation":false,"usgs":true,"family":"Hellequin","given":"Laurent","email":"","affiliations":[],"preferred":false,"id":185336,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Calder, Brian R.","contributorId":79917,"corporation":false,"usgs":true,"family":"Calder","given":"Brian","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":185338,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Mayer, Larry A.","contributorId":69583,"corporation":false,"usgs":true,"family":"Mayer","given":"Larry","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":185337,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":24207,"text":"ofr00140 - 2000 - Field estimates of gravity terrain corrections and Y2K-compatible method to convert from gravity readings with multiple base stations to tide- and long-term drift-corrected observations","interactions":[],"lastModifiedDate":"2023-06-22T13:20:53.67921","indexId":"ofr00140","displayToPublicDate":"2000-10-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-140","title":"Field estimates of gravity terrain corrections and Y2K-compatible method to convert from gravity readings with multiple base stations to tide- and long-term drift-corrected observations","docAbstract":"Gravity observations are directly made or are obtained from other sources by the U.S. Geological Survey in order to prepare maps of the anomalous gravity field and consequently to interpret the subsurface distribution of rock densities and associated lithologic or geologic units. Observations are made in the field with gravity meters at new locations and at reoccupations of previously established gravity \"stations.\" This report illustrates an interactively-prompted series of steps needed to convert gravity \"readings\" to values that are tied to established gravity datums and includes computer programs to implement those steps. Inasmuch as individual gravity readings have small variations, gravity-meter (instrument) drift may not be smoothly variable, and acommodations may be needed for ties to previously established stations, the reduction process is iterative. Decision-making by the program user is prompted by lists of best values and graphical displays.\n\nNotes about irregularities of topography, which affect the value of observed gravity but are not shown in sufficient detail on topographic maps, must be recorded in the field. This report illustrates ways to record field notes (distances, heights, and slope angles) and includes computer programs to convert field notes to gravity terrain corrections.\n\nThis report includes approaches that may serve as models for other applications, for example: portrayal of system flow; style of quality control to document and validate computer applications; lack of dependence on proprietary software except source code compilation; method of file-searching with a dwindling list; interactive prompting; computer code to write directly in the PostScript (Adobe Systems Incorporated) printer language; and high-lighting the four-digit year on the first line of time-dependent data sets for assured Y2K compatibility.\n\nComputer source codes provided are written in the Fortran scientific language. In order for the programs to operate, they first must be converted (compiled) into an executable form on the user's computer. Although program testing was done in a UNIX (tradename of American Telephone and Telegraph Company) computer environment, it is anticipated that only a system-dependent date-and-time function may need to be changed for adaptation to other computer platforms that accept standard Fortran code.d del iliscipit volorer sequi ting etue feum zzriliquatum zzriustrud esenibh ex esto esequat.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr00140","issn":"0094-9140","usgsCitation":"Plouff, D., 2000, Field estimates of gravity terrain corrections and Y2K-compatible method to convert from gravity readings with multiple base stations to tide- and long-term drift-corrected observations: U.S. Geological Survey Open-File Report 2000-140, Report: i, 35 p.; Programs TAR: 1 .rar file, https://doi.org/10.3133/ofr00140.","productDescription":"Report: i, 35 p.; Programs TAR: 1 .rar file","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":1618,"rank":3,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/0140/","linkFileType":{"id":5,"text":"html"}},{"id":281405,"rank":2,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2000/0140/programs.tar"},{"id":53346,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2000/0140/pdf/of00-140.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":155520,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/2000/0140/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fce4b07f02db5f59c9","contributors":{"authors":[{"text":"Plouff, Donald","contributorId":94657,"corporation":false,"usgs":true,"family":"Plouff","given":"Donald","email":"","affiliations":[],"preferred":false,"id":191488,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70125330,"text":"70125330 - 2000 - Sea-floor environments within Long Island Sound: A regional overview","interactions":[],"lastModifiedDate":"2017-09-19T11:10:22","indexId":"70125330","displayToPublicDate":"2000-09-16T11:44:00","publicationYear":"2000","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":"Sea-floor environments within Long Island Sound: A regional overview","docAbstract":"<p>Modern sea-floor sedimentary environments within the glaciated, topographically complex Long Island Sound estuary have been interpreted and mapped from an extensive collection of sidescan sonographs, bottom samples, and video-camera observations together with supplemental bathymetric, marine-geologic, and bottom-current data. Four categories of environments are present that reflect the dominant long-term processes of erosion or nondeposition; coarsegrained bedload transport; sediment sorting and reworking; and fine-grained deposition. (1) Environments of erosion or nondeposition contain exposures of glacial drift, coarse lag deposits, and possibly bedrock and include sediments which range from boulder fields to gravelly coarse-to-medium sands. (2) Environments of coarse-grained bedload transport are mantled by sand ribbons and sand waves and contain mostly coarse-to-fine sands with only small amounts of mud. (3) Environments of sediment sorting and reworking comprise both uniform and heterogeneous sediment types and contain variable amounts of fine sand and mud. (4) Environments of fine-grained deposition are blanketed by muds and sandy muds.</p>\n<br> \n<p>The patchy distribution of sedimentary environments within Long Island Sound reflects both regional and local changes in bottom processes. Regional changes are primarily the result of a strong, east-to-west decreasing gradient of bottom tidal-current speeds, coupled with the net (westward) estuarine bottom drift. The regional current regime has produced a westward succession of environments along the basin floor beginning with erosion or nondeposition at the narrow eastern entrance to the Sound, changing to an extensive area of coarse-grained bedload transport, passing into a contiguous band of sediment sorting, and ending with broad areas of fine-grained deposition in the central and western Sound. However, local changes in processes are superimposed on the regional conditions within the central and western parts of the basin and along the nearshore margins. Within the central and western basin, localized sedimentary environments are produced where the bottom flow is enhanced by, and interacts with, the bottom topography, whereas along the nearshore margins, they variously reflect wave-produced currents, the irregular bathymetry, the indented shoreline, and the proximal supply of sediments.</p>\n<br> \n<p>Results from this study (1) confirm the high trapping efficiency of fine-grained sediments in the Sound, (2) suggest that fine-grained sediments accumulate at an average (regional) rate of 0.08 g/cm<sup>2</sup>/y , and (3) indicate that the postglacial delta in the eastern Sound was a significant source of fine-grained sediments now buried beneath depositional areas.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Coastal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Coastal Education and Research Foundation","usgsCitation":"Knebel, H.J., and Poppe, L., 2000, Sea-floor environments within Long Island Sound: A regional overview: Journal of Coastal Research, v. 16, no. 3, p. 533-550.","productDescription":"18 p.","startPage":"533","endPage":"550","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":293943,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":293942,"type":{"id":15,"text":"Index Page"},"url":"https://www.jstor.org/stable/view/4300069"}],"country":"United States","state":"Connecticut, New York","otherGeospatial":"Long Island Sound","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -73.827,40.7578 ], [ -73.827,41.3293 ], [ -72.0244,41.3293 ], [ -72.0244,40.7578 ], [ -73.827,40.7578 ] ] ] } } ] }","volume":"16","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54195153e4b091c7ffc8e832","contributors":{"authors":[{"text":"Knebel, Harley J.","contributorId":25930,"corporation":false,"usgs":true,"family":"Knebel","given":"Harley","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":501291,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Poppe, Lawrence J. lpoppe@usgs.gov","contributorId":2149,"corporation":false,"usgs":true,"family":"Poppe","given":"Lawrence J.","email":"lpoppe@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":501290,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":22110,"text":"ofr00286 - 2000 - Regional seismic lines reprocessed using post-stack processing techniques: National Petroleum Reserve, Alaska","interactions":[],"lastModifiedDate":"2022-12-09T21:06:57.058553","indexId":"ofr00286","displayToPublicDate":"2000-09-01T00:00:00","publicationYear":"2000","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2000-286","title":"Regional seismic lines reprocessed using post-stack processing techniques: National Petroleum Reserve, Alaska","docAbstract":"<p><span>This CD-ROM contains stacked, migrated, 2-Dimensional seismic reflection data and associated support information for 22 regional seismic lines (3,470 line-miles) recorded in the National Petroleum Reserve – Alaska (NPRA) from 1974 through 1981. Together, these lines constitute about one-quarter of the seismic data collected as part of the Federal Government’s program to evaluate the petroleum potential of the Reserve. The regional lines, which form a grid covering the entire NPRA, were created by combining various individual lines recorded in different years using different recording parameters. These data were reprocessed by the USGS using modern, post-stack processing techniques, to create a data set suitable for interpretation on interactive seismic interpretation computer workstations. Reprocessing was done in support of ongoing petroleum resource studies by the USGS Energy Program.</span></p><p><span>The CD-ROM contains the following files: 1) 22 files containing the digital seismic data in standard, SEG-Y format; 2) 1 file containing navigation data for the 22 lines in standard SEG-P1 format; 3) 22 small scale graphic images of each seismic line in Adobe Acrobat<sup>®</sup>&nbsp;PDF format; 4) a graphic image of the location map, generated from the navigation file, with hyperlinks to the graphic images of the seismic lines; 5) an ASCII text file with cross-reference information for relating the sequential trace numbers on each regional line to the line number and shotpoint number of the original component lines; and 6) an explanation of the processing used to create the final seismic sections (this document).</span></p><p><span>The SEG-Y format seismic files and SEG-P1 format navigation file contain all the information necessary for loading the data onto a seismic interpretation workstation.</span></p>","language":"English","publisher":"U.S. Geological Survey,","publisherLocation":"Reston, VA","doi":"10.3133/ofr00286","usgsCitation":"Miller, J.J., Agena, W., Lee, M.W., Zihlman, F.N., Grow, J.A., Taylor, D.J., Killgore, M., and Oliver, H.L., 2000, Regional seismic lines reprocessed using post-stack processing techniques: National Petroleum Reserve, Alaska: U.S. Geological Survey Open-File Report 2000-286, HTML Document, https://doi.org/10.3133/ofr00286.","productDescription":"HTML Document","costCenters":[],"links":[{"id":154772,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":410226,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_32201.htm","linkFileType":{"id":5,"text":"html"}},{"id":1447,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2000/ofr-00-0286/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Alaska","otherGeospatial":"National Petroleum Reserve","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -162.064,\n              70.39\n            ],\n            [\n              -162.064,\n              68.268\n            ],\n            [\n              -150.972,\n              68.268\n            ],\n            [\n              -150.972,\n              70.39\n            ],\n            [\n              -162.064,\n              70.39\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c46d","contributors":{"authors":[{"text":"Miller, John J. 0000-0002-9098-0967 jmiller@usgs.gov","orcid":"https://orcid.org/0000-0002-9098-0967","contributorId":3785,"corporation":false,"usgs":true,"family":"Miller","given":"John","email":"jmiller@usgs.gov","middleInitial":"J.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":187117,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Agena, Warren F.","contributorId":67079,"corporation":false,"usgs":true,"family":"Agena","given":"Warren F.","affiliations":[],"preferred":false,"id":187121,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lee, Myung W.","contributorId":84358,"corporation":false,"usgs":true,"family":"Lee","given":"Myung","middleInitial":"W.","affiliations":[],"preferred":false,"id":187122,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zihlman, F. N.","contributorId":16819,"corporation":false,"usgs":true,"family":"Zihlman","given":"F.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":187118,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Grow, J. A.","contributorId":27858,"corporation":false,"usgs":true,"family":"Grow","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":187119,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Taylor, D. J.","contributorId":50849,"corporation":false,"usgs":true,"family":"Taylor","given":"D.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":187120,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Killgore, Michele","contributorId":86802,"corporation":false,"usgs":true,"family":"Killgore","given":"Michele","affiliations":[],"preferred":false,"id":187123,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Oliver, H. L.","contributorId":87130,"corporation":false,"usgs":true,"family":"Oliver","given":"H.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":187124,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
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