The Florida shelf represents a finite source of economic resources, including commercial and recreational fisheries, tourism, recreation, sand and gravel resources, phosphate, and freshwater reserves. Yet the basic information needed to locate resources, or to interpret and utilize existing data, comes from many sources, dates, and formats. A multi-agency effort is underway to coordinate and prioritize the compilation of suitable datasets for an integrated information system of Florida’s coastal and ocean resources. This report and the associated data files represent part of the effort to make data accessible and useable with computer-mapping systems, web-based technologies, and user-friendly visualization tools. Among the datasets compiled and developed are seafloor imagery, marine sediment data, and existing bathymetric data. A U.S. Geological Survey-sponsored workshop in January 2007 resulted in the establishment of mapping priorities for the state. Bathymetry was identified as a common priority among agencies and researchers. State-of-the-art computer-mapping techniques and data-processing tools were used to develop shelf-wide raster and vector data layers. Florida Shelf Habitat (FLaSH) Mapping Project (http://coastal.er.usgs.gov/flash) endeavors to locate available data, identify data gaps, synthesize existing information, and expand our understanding of geologic processes in our dynamic coastal and marine systems.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071397","usgsCitation":"Robbins, L.L., Hansen, M., Raabe, E., Knorr, P.O., and Browne, J., 2007, Cartographic production for the Florida Shelf Habitat (FLaSH) map study: generation of surface grids, contours, and KMZ files: U.S. Geological Survey Open-File Report 2007-1397, HTML Document, https://doi.org/10.3133/ofr20071397.","productDescription":"HTML Document","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":292444,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":292443,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2007/1397/"}],"country":"United States","state":"Florida","otherGeospatial":"Florida Shelf","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -87.0,25.0 ], [ -87.0,30.0 ], [ -80.0,30.0 ], [ -80.0,25.0 ], [ -87.0,25.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53f25fc4e4b03334187188fa","contributors":{"authors":[{"text":"Robbins, Lisa L. 0000-0003-3681-1094 lrobbins@usgs.gov","orcid":"https://orcid.org/0000-0003-3681-1094","contributorId":422,"corporation":false,"usgs":true,"family":"Robbins","given":"Lisa","email":"lrobbins@usgs.gov","middleInitial":"L.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":498611,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hansen, Mark","contributorId":81893,"corporation":false,"usgs":true,"family":"Hansen","given":"Mark","affiliations":[],"preferred":false,"id":498613,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Raabe, Ellen","contributorId":98402,"corporation":false,"usgs":true,"family":"Raabe","given":"Ellen","affiliations":[],"preferred":false,"id":498614,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Knorr, Paul O. pknorr@usgs.gov","contributorId":3691,"corporation":false,"usgs":true,"family":"Knorr","given":"Paul","email":"pknorr@usgs.gov","middleInitial":"O.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":498612,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Browne, Joseph","contributorId":102398,"corporation":false,"usgs":true,"family":"Browne","given":"Joseph","email":"","affiliations":[],"preferred":false,"id":498615,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70103487,"text":"ofr20071047SRP108 - 2007 - Structure of the central Terror Rift, western Ross Sea, Antarctica","interactions":[],"lastModifiedDate":"2014-05-05T13:32:52","indexId":"ofr20071047SRP108","displayToPublicDate":"2007-01-01T13:15:00","publicationYear":"2007","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":"2007-1047-SRP-108","title":"Structure of the central Terror Rift, western Ross Sea, Antarctica","docAbstract":"The Terror Rift is a zone of post-middle Miocene faulting and volcanism along the western margin of the \nWest Antarctic Rift System. A new seismic data set from NSF geophysical cruise NBP04-01, integrated with the \nprevious dataset to provide higher spatial resolution, has been interpreted in this study in order to improve \nunderstanding of the architecture and history of the Terror Rift. The Terror Rift contains two components, a \nstructurally-controlled rollover anticlinal arch intruded by younger volcanic bodies and an associated synclinal basin. \nOffsets and trend changes in fault patterns have been identified, coincident with shifts in the location of depocenters that \ndefine rift sub-basins, indicating that the Terror Rift is segmented by transverse structures. Multiple phases of faulting \nall post-date 17 Ma, including faults cutting the seafloor surface, indicating Neogene rifting and possible modern \nactivity.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP108","usgsCitation":"Hall, J., Wilson, T., and Henrys, S., 2007, Structure of the central Terror Rift, western Ross Sea, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-108, 5 p., https://doi.org/10.3133/ofr20071047SRP108.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286881,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP108.JPG"},{"id":286880,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp108/of2007-1047srp108.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5368b2fee4b059f7e8288385","contributors":{"authors":[{"text":"Hall, Jerome","contributorId":68656,"corporation":false,"usgs":true,"family":"Hall","given":"Jerome","email":"","affiliations":[],"preferred":false,"id":493363,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, Terry","contributorId":33618,"corporation":false,"usgs":true,"family":"Wilson","given":"Terry","affiliations":[],"preferred":false,"id":493362,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Henrys, Stuart","contributorId":21464,"corporation":false,"usgs":true,"family":"Henrys","given":"Stuart","affiliations":[],"preferred":false,"id":493361,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70160272,"text":"70160272 - 2007 - Yellowstone grizzly bear investigations: Annual report of the Interagency Grizzly Bear Study Team, 2006","interactions":[],"lastModifiedDate":"2022-09-13T15:38:18.03936","indexId":"70160272","displayToPublicDate":"2007-01-01T13:15:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":3,"text":"Annual Report","active":false,"publicationSubtype":{"id":1}},"title":"Yellowstone grizzly bear investigations: Annual report of the Interagency Grizzly Bear Study Team, 2006","docAbstract":"The contents of this Annual Report summarize results of monitoring and research from the 2006 field season. The report also contains a summary of nuisance grizzly bear (Ursus arctos horribilis) management actions.
\nThe Interagency Grizzly Bear Study Team (IGBST) continues to work on issues associated with counts of unduplicated females with cubs-of- the-year (COY). These counts are used to establish a minimum population size, which is then used to establish mortality thresholds for the Recovery Plan (U.S. Fish and Wildlife Service [USFWS] 1993). After considerable delays due to programming issues, a computer program that defines the rule set used by Knight et al. (1995) to differentiate unique family groups was development and tested in 2005 and 2006. Simulations using observations of collared females with COY were randomly sampled to generate datasets of observations of random females with COY. These datasets were then run though the simulations program to test the accuracy of the rules. Data are currently being summarized. This project has been completed and a manuscript was submitted to the Journal of Wildlife Management.
\nThe grizzly bear recovery plan (USFWS 1993) established human-caused mortality quotas. We used the latest information on reproduction and survival to estimate population trajectory in the same simulation model originally used by Harris (1984). A Wildlife Monographs was published in 2006. Additionally, the study team, in cooperation with several quantitative experts, reassessed how population size is indexed and how sustainable mortality rates are established. A draft report was presented to the Yellowstone Ecosystem Subcommittee in spring 2005. It was published as part of the USFWS Delisting Rule (Federal Register Vol. 70, No. 221, Nov. 17, 2005, 69853–69884) and subjected to public comment. This workshop document can be found at http://www.fws.gov/mountain-prairie/species/mammals/grizzly/yellowstone.htm. During the summer of 2006, a second workshop was held to address public comment and professional peer review. The result of this workshop was a supplement to the 2005 workshop document. This supplement can be found at http://www.fws.gov/mountain-prairie/species/mammals/grizzly/yellowstone.htm under the link Revised Methods to Estimate Population Size and Sustainable Mortality Limits. Results of those estimates are provided in Appendix A.
\nOur project addressing the potential application of stable isotopes and trace elements to quantify consumption rates of whitebark pine (Pinus albicaulis) and cutthroat trout (Oncorhynchus clarki) by grizzly bears was completed. Our manuscript on consumption rates of whitebark pine was published in the Canadian Journal of Zoology 81:763-770. Results of the mercury studies were also published in the Canadian Journal of Zoology 82:493–501. Copies can be found on the IGBST website http://www.nrmsc.usgs.gov/research/igbst-home.htm. Based upon this work, we submitted a proposal to analyze all historic tissue samples from grizzly bears in the ecosystem. That proposal was funded and samples have been sent to a lab for isotopic analysis. We hope to have those results in early 2008.
\nResults of DNA hair snaring work conducted on Yellowstone Lake were submitted and published in the Journal Ursus (Haroldson et al. 2005). Results of this study conducted from 1997–2000 showed a decline in fish use by grizzly bears when compared to earlier work conducted by Reinhart (1990) in 1985–1987. As a consequence, the IGBST submitted a proposal to the National Park Service and received 3 years funding to repeat that work. This project began in 2007. There are 2 graduate students and several field technicians working on the program.
\nWe completed the final field season in Grand Teton National Park evaluating habitat use both temporally and spatially between grizzly and black bears (Ursus americanus). We continue to use GPS technology that incorporates a spread spectrum communication system. Spread spectrum allows for transfer of stored GPS locations from the collar to a remote receiving station. Results of the 2006 field season are reported here. We plan to complete the final report in late 2007.
\nWe continued to monitor the health of whitebark pine in the Greater Yellowstone Ecosystem (GYE) in cooperation with the Greater Yellowstone Whitebark Pine Monitoring Working Group. A summary of the 2006 monitoring is also presented (Appendix B).
\nThe IGBST uses counts of winter-killed ungulates to index spring carcass abundance for grizzly bears. Likewise, we use wier counts and stream surveys to index cutthroat trout abundance. We ask Dr. Steve Cherry, Department of Mathematical Sciences, Montana State University-Bozeman, to review the protocols and make recommendations for improving them. That review and recommendations are presented in Appendix C.
\nFinally, the state of Wyoming, following recommendations from the Yellowstone Ecosystem Subcommittee and the IGBST, launched the Bear Wise Community Effort. The focus is to minimize human/bear conflicts, minimize human-caused bear mortalities associated with conflicts, and safeguard the human community. Results of these efforts are detailed in Appendix D.
\nThe annual reports of the IGBST summarize annual data collection. Because additional information can be obtained after publication, data summaries are subject to change. For that reason, data analyses and summaries presented in this report supersede all previously published data. The study area and sampling techniques are reported by Blanchard (1985), Mattson et al. (1991 a), and Haroldson et al. (1998).
","language":"English","publisher":"Interagency Grizzly Bear Study Team","usgsCitation":"2007, Yellowstone grizzly bear investigations: Annual report of the Interagency Grizzly Bear Study Team, 2006: Annual Report, 68 p.","productDescription":"68 p.","numberOfPages":"72","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":312325,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":312324,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://www.sciencebase.gov/catalog/file/get/6266a697d34e76103cce5808?f=__disk__62%2F77%2F68%2F627768e4d94681a6b816fe22832ab40ec615ef4a","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Idaho, Montana, Wyoming","otherGeospatial":"Greater Yellowstone Ecosystem","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.68701171875,\n 42.85985981506279\n ],\n [\n -109.27001953125,\n 42.85985981506279\n ],\n [\n -109.27001953125,\n 45.583289756006316\n ],\n [\n -111.68701171875,\n 45.583289756006316\n ],\n [\n -111.68701171875,\n 42.85985981506279\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"567147f6e4b09cfe53ca7d90","contributors":{"editors":[{"text":"Schwartz, Charles C.","contributorId":124574,"corporation":false,"usgs":false,"family":"Schwartz","given":"Charles","email":"","middleInitial":"C.","affiliations":[{"id":5119,"text":"Retired from U.S. Geological Survey, Interagency Grizzly Bear Study Team, Northern Rocky Mountain Science Center, 2327 University Way, suite 2, Bozeman, MT 59715","active":true,"usgs":false}],"preferred":false,"id":582397,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Haroldson, Mark A. 0000-0002-7457-7676 mharoldson@usgs.gov","orcid":"https://orcid.org/0000-0002-7457-7676","contributorId":1773,"corporation":false,"usgs":true,"family":"Haroldson","given":"Mark","email":"mharoldson@usgs.gov","middleInitial":"A.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":582398,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"West, Karrie K. karrie_west@usgs.gov","contributorId":4055,"corporation":false,"usgs":true,"family":"West","given":"Karrie","email":"karrie_west@usgs.gov","middleInitial":"K.","affiliations":[],"preferred":true,"id":582399,"contributorType":{"id":2,"text":"Editors"},"rank":3}]}} ,{"id":70121082,"text":"70121082 - 2007 - USGS Tampa Bay Pilot Study","interactions":[],"lastModifiedDate":"2014-08-19T14:23:39","indexId":"70121082","displayToPublicDate":"2007-01-01T13:12:00","publicationYear":"2007","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":3,"text":"Organization Series"},"title":"USGS Tampa Bay Pilot Study","docAbstract":"Many of the nation's estuaries have been environmentally stressed since the turn of the 20th century and will continue to be impacted in the future. Tampa Bay, one the Gulf of Mexico's largest estuaries, exemplifies the threats that our estuaries face (EPA Report 2001, Tampa Bay Estuary Program-Comprehensive Conservation and Management Plan (TBEP-CCMP)). More than 2 million people live in the Tampa Bay watershed, and the population constitutes to grow. Demand for freshwater resources, conversion of undeveloped areas to resident and industrial uses, increases in storm-water runoff, and increased air pollution from urban and industrial sources are some of the known human activities that impact Tampa Bay. Beginning on 2001, additional anthropogenic modifications began in Tampa Bat including construction of an underwater gas pipeline and a desalinization plant, expansion of existing ports, and increased freshwater withdrawal from three major tributaries to the bay.
\nIn January of 2001, the Tampa Bay Estuary Program (TBEP) and its partners identifies a critical need for participation from the U.S. Geological Survey (USGS) in providing multidisciplinary expertise and a regional-scale, integrated science approach to address complex scientific research issue and critical scientific information gaps that are necessary for continued restoration and preservation of Tampa Bay. Tampa Bay stakeholders identified several critical science gaps for which USGS expertise was needed (Yates et al. 2001). These critical science gaps fall under four topical categories (or system components): 1) water and sediment quality, 2) hydrodynamics, 3) geology and geomorphology, and 4) ecosystem structure and function. Scientists and resource managers participating in Tampa Bay studies recognize that it is no longer sufficient to simply examine each of these estuarine system components individually, Rather, the interrelation among system components must be understood to develop conceptual and predictive modeling tools for effective ecosystem adaptive management. As a multidisciplinary organization, the USGS possesses the capability of developing and coordinating an integrated science strategy for estuarine research founded on partnerships and collaborative efforts, multidisciplinary teams of scientists, and integrated field work, data analysis and interpretation, and product development. The primary role of the USGS in Tamps Bay research was defined with our partners based upon this capability to address estuarine issues using an integrated science approach with a regional perspective and within a national context to complement the numerous ongoing scien efforts by state and local agencies that address local issues within Tamp Bay. Six primary components of the USGS Tamp Bay Study address critical gaps within each of the the four estuarine system components and focus on:
\n1.) Examining how natural and man-made \nphysical changes affect ecosystem health \nthrough mapping and modeling.
\n2.) Identifying sources and quality of \ngroundwater, surface water, and \nsediment,
\n3.) Identifying sources and quality of \ngroundwater, surface water, and \nsediment,
\n4.) Assessing the natural and man-made \nchanges affecting wetland health and \nrestoration,
\n5.) Identifying and measuring the impact of \nurbanization on seafloor habitats,
\nProviding a web-based digital \ninformation management system of information for scientists and the public, \nincluding a system that supports the work \nof those officials who must make \ndecisions that affect the state of the bay.
\nThe Tampa Bay Study is in its sixth year and will \ncontinue through September 2007. This paper \npresents a non-inclusive summary of key findings \nassociated with the six primary project \ncomponents listed above. Component 4 (above) is \ndescribed in detail in the following chapter 13. \nMore information on the Tampa Bay Study is \navailable from our on-line digital information \nsystem for the Tampa Bay Study at \nhttp://gulfsci.usgs.gov.
","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Baywide Environmental Monitoring Report, 2002-2005","largerWorkSubtype":{"id":3,"text":"Organization Series"},"language":"English","publisher":"Tampa Bay Estuary Program","publisherLocation":"St. Petersburg, FL","usgsCitation":"Yates, K.K., Cronin, T.M., Crane, M., Hansen, M., Nayeghandi, A., Swarzenski, P., Edgar, T., Brooks, G.R., Suthard, B., Hine, A., Locker, S., Willard, D., Hastings, D., Flower, B., Hollander, D., Larson, R., and Smith, K., 2007, USGS Tampa Bay Pilot Study, 17 p.","productDescription":"17 p.","startPage":"13-1","endPage":"13-17","numberOfPages":"17","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":292579,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Tampa Bay","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -82.881921,27.346605 ], [ -82.881921,28.096584 ], [ -82.301152,28.096584 ], [ -82.301152,27.346605 ], [ -82.881921,27.346605 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53f464d0e4b073ff773a7d7c","contributors":{"authors":[{"text":"Yates, K. K.","contributorId":108056,"corporation":false,"usgs":true,"family":"Yates","given":"K.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":498790,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cronin, T. M. 0000-0002-2643-0979","orcid":"https://orcid.org/0000-0002-2643-0979","contributorId":42613,"corporation":false,"usgs":true,"family":"Cronin","given":"T.","email":"","middleInitial":"M.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":false,"id":498775,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Crane, M.","contributorId":86957,"corporation":false,"usgs":true,"family":"Crane","given":"M.","email":"","affiliations":[],"preferred":false,"id":498784,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hansen, M.","contributorId":34670,"corporation":false,"usgs":true,"family":"Hansen","given":"M.","affiliations":[],"preferred":false,"id":498774,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nayeghandi, A.","contributorId":91792,"corporation":false,"usgs":true,"family":"Nayeghandi","given":"A.","email":"","affiliations":[],"preferred":false,"id":498785,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Swarzenski, P. 0000-0003-0116-0578","orcid":"https://orcid.org/0000-0003-0116-0578","contributorId":49156,"corporation":false,"usgs":true,"family":"Swarzenski","given":"P.","affiliations":[],"preferred":false,"id":498777,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Edgar, T.","contributorId":70595,"corporation":false,"usgs":true,"family":"Edgar","given":"T.","email":"","affiliations":[],"preferred":false,"id":498781,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Brooks, G. R.","contributorId":96312,"corporation":false,"usgs":true,"family":"Brooks","given":"G.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":498787,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Suthard, B.","contributorId":103105,"corporation":false,"usgs":true,"family":"Suthard","given":"B.","affiliations":[],"preferred":false,"id":498789,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Hine, A.","contributorId":96107,"corporation":false,"usgs":true,"family":"Hine","given":"A.","affiliations":[],"preferred":false,"id":498786,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Locker, S.","contributorId":72218,"corporation":false,"usgs":true,"family":"Locker","given":"S.","affiliations":[],"preferred":false,"id":498782,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Willard, Debra A. 0000-0003-4878-0942","orcid":"https://orcid.org/0000-0003-4878-0942","contributorId":85982,"corporation":false,"usgs":true,"family":"Willard","given":"Debra A.","affiliations":[],"preferred":false,"id":498783,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Hastings, D.","contributorId":43186,"corporation":false,"usgs":true,"family":"Hastings","given":"D.","affiliations":[],"preferred":false,"id":498776,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Flower, B.","contributorId":51116,"corporation":false,"usgs":true,"family":"Flower","given":"B.","email":"","affiliations":[],"preferred":false,"id":498778,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Hollander, D.","contributorId":52417,"corporation":false,"usgs":true,"family":"Hollander","given":"D.","email":"","affiliations":[],"preferred":false,"id":498779,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Larson, R.A.","contributorId":58786,"corporation":false,"usgs":true,"family":"Larson","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":498780,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Smith, K.","contributorId":100578,"corporation":false,"usgs":true,"family":"Smith","given":"K.","affiliations":[],"preferred":false,"id":498788,"contributorType":{"id":1,"text":"Authors"},"rank":17}]}} ,{"id":70100993,"text":"ofr20071047SRP090 - 2007 - Seismic facies and stratigraphy of the Cenozoic succession in McMurdo Sound, Antarctica: Implications for tectonic, climatic and glacial history","interactions":[],"lastModifiedDate":"2014-04-08T15:58:42","indexId":"ofr20071047SRP090","displayToPublicDate":"2007-01-01T13:08:00","publicationYear":"2007","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":"2007-1047-SRP-090","title":"Seismic facies and stratigraphy of the Cenozoic succession in McMurdo Sound, Antarctica: Implications for tectonic, climatic and glacial history","docAbstract":"A new stratigraphic model is presented for the evolution of the Cenozoic Victoria Land Basin of the West \nAntarctic Rift, based on integration of seismic reflection and drilling data. The Early Rift phase (?latest Eocene to Early \nOligocene) comprises wedges of strata confined by early extensional faults, and which contain seismic facies consistent \nwith drainage via coarse-grained fans and deltas into discrete, actively subsiding grabens and half-grabens. The Main \nRift phase (Early Oligocene to Early Miocene) comprises a lens of strata that thickens symmetrically from the basin \nmargins into a central depocenter, and in which stratal events pass continuously over the top of the Early Rift \nextensional topography. Internal seismic facies and lithofacies indicate a more organized, cyclical shallow marine \nsuccession, influenced increasingly upward by cycles of glacial advance and retreat into the basin. The Passive Thermal \nSubsidence phase (Early Miocene to ?) comprises an evenly distributed sheet of strata that does not thicken appreciably \ninto the depocentre, with more evidence for clinoform sets and large channels. These patterns are interpreted to record \naccumulation under similar environmental conditions but in a regime of slower subsidence. The Renewed Rifting phase \n(? to Recent, largely unsampled by coring thus far) has been further divided into 1, a lower interval, in which the section \nthickens passively towards a central depocentre, and 2. an upper interval, in which more dramatic thickening patterns \nare complicated by magmatic activity. The youngest part of the stratigraphy was accumulated under the influence of \nflexural loading imposed by the construction of large volcanic edifices, and involved minimal sediment supply from the \nwestern basin margin, suggesting a change in environmental (glacial) conditions at possibly c. 2 Ma.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP090","usgsCitation":"Fielding, C., Whittaker, J., Henrys, S., Wilson, T.J., and Nash, T., 2007, Seismic facies and stratigraphy of the Cenozoic succession in McMurdo Sound, Antarctica: Implications for tectonic, climatic and glacial history: U.S. Geological Survey Open-File Report 2007-1047-SRP-090, 4 p., https://doi.org/10.3133/ofr20071047SRP090.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":285904,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53559560e4b0120853e8c1d9","contributors":{"authors":[{"text":"Fielding, C.R.","contributorId":25864,"corporation":false,"usgs":true,"family":"Fielding","given":"C.R.","email":"","affiliations":[],"preferred":false,"id":492495,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Whittaker, J.","contributorId":88650,"corporation":false,"usgs":true,"family":"Whittaker","given":"J.","email":"","affiliations":[],"preferred":false,"id":492499,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Henrys, S.A.","contributorId":56097,"corporation":false,"usgs":true,"family":"Henrys","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":492497,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wilson, T. J.","contributorId":31942,"corporation":false,"usgs":false,"family":"Wilson","given":"T.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":492496,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nash, T.R.","contributorId":63721,"corporation":false,"usgs":true,"family":"Nash","given":"T.R.","email":"","affiliations":[],"preferred":false,"id":492498,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70120669,"text":"70120669 - 2007 - Triggering mechanism and tsunamogenic potential of the Cape Fear Slide complex, U.S. Atlantic margin","interactions":[],"lastModifiedDate":"2017-10-04T18:32:57","indexId":"70120669","displayToPublicDate":"2007-01-01T13:05:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1757,"text":"Geochemistry, Geophysics, Geosystems","active":true,"publicationSubtype":{"id":10}},"title":"Triggering mechanism and tsunamogenic potential of the Cape Fear Slide complex, U.S. Atlantic margin","docAbstract":"Analysis of new multibeam bathymetry data and seismic Chirp data acquired over the Cape Fear Slide complex on the U.S. Atlantic margin suggests that at least 5 major submarine slides have likely occurred there within the past 30,000 years, indicating that repetitive, large-scale mass wasting and associated tsunamis may be more common in this area than previously believed. Gas hydrate deposits and associated free gas as well as salt tectonics have been implicated in previous studies as triggers for the major Cape Fear slide events. Analysis of the interaction of the gas hydrate phase boundary and the various generations of slides indicates that only the most landward slide likely intersected the phase boundary and inferred high gas pressures below it. For much of the region, we believe that displacement along a newly recognized normal fault led to upward migration of salt, oversteepening of slopes, and repeated slope failures. Using new constraints on slide morphology, we develop the first tsunami model for the Cape Fear Slide complex. Our results indicate that if the most seaward Cape Fear slide event occurred today, it could produce waves in excess of 2 m at the present-day 100 m bathymetric contour.","language":"English","publisher":"Wiley","doi":"10.1029/2007GC001722","usgsCitation":"Hornbach, M.J., Lavier, L.L., and Ruppel, C., 2007, Triggering mechanism and tsunamogenic potential of the Cape Fear Slide complex, U.S. Atlantic margin: Geochemistry, Geophysics, Geosystems, v. 8, no. 12, 16 p., https://doi.org/10.1029/2007GC001722.","productDescription":"16 p.","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":476934,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/3267","text":"External Repository"},{"id":292302,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Cape Fear Slide","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -80.0,31.666667 ], [ -80.0,35.0 ], [ -75.0,35.0 ], [ -75.0,31.666667 ], [ -80.0,31.666667 ] ] ] } } ] }","volume":"8","issue":"12","noUsgsAuthors":false,"publicationDate":"2007-12-28","publicationStatus":"PW","scienceBaseUri":"53ef1ed9e4b0bfa1f993f022","contributors":{"authors":[{"text":"Hornbach, Matthew J.","contributorId":14258,"corporation":false,"usgs":true,"family":"Hornbach","given":"Matthew","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":498369,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lavier, Luc L.","contributorId":88659,"corporation":false,"usgs":true,"family":"Lavier","given":"Luc","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":498370,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ruppel, Carolyn D.","contributorId":102322,"corporation":false,"usgs":true,"family":"Ruppel","given":"Carolyn D.","affiliations":[],"preferred":false,"id":498371,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70074741,"text":"ofr20071047SRP025 - 2007 - Basement and crustal structure of the Davis Sea region (East Antarctica): implications for tectonic setting and continent to oceanic boundary definition","interactions":[],"lastModifiedDate":"2014-02-03T13:14:29","indexId":"ofr20071047SRP025","displayToPublicDate":"2007-01-01T13:01:00","publicationYear":"2007","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":"2007-1047-SRP-025","title":"Basement and crustal structure of the Davis Sea region (East Antarctica): implications for tectonic setting and continent to oceanic boundary definition","docAbstract":"This study is based on about 8400 km of MCS, magnetic and gravity data as well as 20 sonobuoys collected \nby the Russian Antarctic Expedition during 2003 and 2004 in the Davis Sea and adjacent areas between 80°E and \n102°E. Major tectonic provinces and features are identified and mapped in the study region including: 1) A marginal rift \nwith a the extended continental crust ranging 130 to more than 200 km in width; 2) The marginal volcanic plateau of the \nBruce Bank consisting of the Early Cretaceous igneous rocks; 3) The Early Cretaceous and Late Cretaceous−Paleogene \noceanic basins; and 4) The Early Cretaceous igneous province of the Kerguelen Plateau. Four major horizons identified \nin the sedimentary cover of the Davis Sea region are attributed to main tectonic events and/or paleoenvironmental \nchanges.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP025","usgsCitation":"Guseva, Y., Leitchenkov, G., Gandyukhin, V., and Ivanov, S., 2007, Basement and crustal structure of the Davis Sea region (East Antarctica): implications for tectonic setting and continent to oceanic boundary definition: U.S. Geological Survey Open-File Report 2007-1047-SRP-025, 4 p., https://doi.org/10.3133/ofr20071047SRP025.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":281892,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP025.JPG"},{"id":281890,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp025/of2007-1047srp025.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4ed6e4b0b290850f25a6","contributors":{"authors":[{"text":"Guseva, Y.B.","contributorId":103808,"corporation":false,"usgs":true,"family":"Guseva","given":"Y.B.","email":"","affiliations":[],"preferred":false,"id":489776,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leitchenkov, G.L.","contributorId":70126,"corporation":false,"usgs":true,"family":"Leitchenkov","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":489775,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gandyukhin, V.V.","contributorId":35081,"corporation":false,"usgs":true,"family":"Gandyukhin","given":"V.V.","email":"","affiliations":[],"preferred":false,"id":489774,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ivanov, S.V.","contributorId":23435,"corporation":false,"usgs":true,"family":"Ivanov","given":"S.V.","email":"","affiliations":[],"preferred":false,"id":489773,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70121079,"text":"70121079 - 2007 - GIS data for the Seaside, Oregon, Tsunami Pilot Study to modernize FEMA flood hazard maps","interactions":[],"lastModifiedDate":"2019-08-09T13:07:55","indexId":"70121079","displayToPublicDate":"2007-01-01T12:57:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"GIS data for the Seaside, Oregon, Tsunami Pilot Study to modernize FEMA flood hazard maps","docAbstract":"A Tsunami Pilot Study was conducted for the area surrounding the coastal town of Seaside, Oregon, as part of the Federal Emergency Management's (FEMA) Flood Insurance Rate Map Modernization Program (Tsunami Pilot Study Working Group, 2006). The Cascadia subduction zone extends from Cape Mendocino, California, to Vancouver Island, Canada. The Seaside area was chosen because it is typical of many coastal communities subject to tsunamis generated by far- and near-field (Cascadia) earthquakes.
\nTwo goals of the pilot study were to develop probabilistic 100-year and 500-year tsunami inundation maps using Probabilistic Tsunami Hazard Analysis (PTHA) and to provide \nrecommendations for improving tsunami hazard assessment guidelines for FEMA and \nstate and local agencies. The study was an interagency effort by the National Oceanic and \nAtmospheric Administration, U.S. Geological Survey, and FEMA, in collaboration with \nthe University of Southern California, Middle East Technical University, Portland State \nUniversity, Horning Geoscience, Northwest Hydraulics Consultants, and the Oregon \nDepartment of Geological and Mineral Industries. The pilot study model data and results \nare published separately as a geographic information systems (GIS) data report (Wong \nand others, 2006). The flood maps and GIS data are briefly described here.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of Coastal Zone '07","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"NOAA Coastal Services Center","publisherLocation":"Charleston, SC","usgsCitation":"Wong, F.L., Venturato, A.J., and Geist, E.L., 2007, GIS data for the Seaside, Oregon, Tsunami Pilot Study to modernize FEMA flood hazard maps, in Proceedings of Coastal Zone '07, 5 p.","productDescription":"5 p.","numberOfPages":"5","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":292569,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oregon","city":"Seaside","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -123.961797,45.946697 ], [ -123.961797,46.017213 ], [ -123.892413,46.017213 ], [ -123.892413,45.946697 ], [ -123.961797,45.946697 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53f464cae4b073ff773a7d0c","contributors":{"authors":[{"text":"Wong, Florence L. 0000-0002-3918-5896 fwong@usgs.gov","orcid":"https://orcid.org/0000-0002-3918-5896","contributorId":1990,"corporation":false,"usgs":true,"family":"Wong","given":"Florence","email":"fwong@usgs.gov","middleInitial":"L.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":498768,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Venturato, Angie J.","contributorId":58720,"corporation":false,"usgs":true,"family":"Venturato","given":"Angie","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":498769,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Geist, Eric L. 0000-0003-0611-1150 egeist@usgs.gov","orcid":"https://orcid.org/0000-0003-0611-1150","contributorId":1956,"corporation":false,"usgs":true,"family":"Geist","given":"Eric","email":"egeist@usgs.gov","middleInitial":"L.","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":498767,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70094921,"text":"ofr20071047SRP071 - 2007 - The contribution of geomagnetic observatories and magnetic models to the study of secular variation and jerks in Antarctica","interactions":[],"lastModifiedDate":"2014-02-25T12:55:27","indexId":"ofr20071047SRP071","displayToPublicDate":"2007-01-01T12:46:00","publicationYear":"2007","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":"2007-1047-SRP-071","title":"The contribution of geomagnetic observatories and magnetic models to the study of secular variation and jerks in Antarctica","docAbstract":"Some of the most interesting features of the geomagnetic field and its time variations are displayed in polar\nareas. Observatory monthly means usually provide an excellent opportunity to study the temporal changes of the\nmagnetic field at a given location. Unfortunately, on the Antarctic continent the distribution of the permanent ground-\nbased observatories does not permit a uniform coverage of the examined area. Furthermore, the magnetic records are\ncharacterized by intense external disturbances and noise that make the analysis of the magnetic field difficult. To improve our knowledge of the secular variation and detect the presence of secular variation impulses (geomagnetic\njerks) in Antarctica, we use both observatory data and the CM4 quiet time magnetic field model. In particular CM4\nimproves our knowledge of geomagnetic jerks over Antarctica through the study of the sign changes of the secular\nacceleration maps.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP071","usgsCitation":"Meloni, A., Cafarella, L., Michelis, P.D., and Tozzi, R., 2007, The contribution of geomagnetic observatories and magnetic models to the study of secular variation and jerks in Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-071, 5 p., https://doi.org/10.3133/ofr20071047SRP071.","productDescription":"5 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282767,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP071.JPG"},{"id":282766,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp071/of2007-1047srp071.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd7787e4b0b2908510b98f","contributors":{"authors":[{"text":"Meloni, A.","contributorId":12778,"corporation":false,"usgs":true,"family":"Meloni","given":"A.","email":"","affiliations":[],"preferred":false,"id":490961,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cafarella, L.","contributorId":31673,"corporation":false,"usgs":true,"family":"Cafarella","given":"L.","email":"","affiliations":[],"preferred":false,"id":490963,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Michelis, P. De","contributorId":57368,"corporation":false,"usgs":true,"family":"Michelis","given":"P.","email":"","middleInitial":"De","affiliations":[],"preferred":false,"id":490964,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tozzi, R.","contributorId":13539,"corporation":false,"usgs":true,"family":"Tozzi","given":"R.","email":"","affiliations":[],"preferred":false,"id":490962,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70065877,"text":"ofr20071047KP09 - 2007 - Tectonics of the West Antarctic rift system: new light on the history and dynamics of distributed intracontinental extension","interactions":[],"lastModifiedDate":"2014-01-07T13:06:57","indexId":"ofr20071047KP09","displayToPublicDate":"2007-01-01T12:39:00","publicationYear":"2007","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":"2007-1047-KP-09","title":"Tectonics of the West Antarctic rift system: new light on the history and dynamics of distributed intracontinental extension","docAbstract":"The West Antarctic rift system (WARS) is the product of \nmultiple stages of intracontinental deformation from Jurassic to Present. The Cretaceous rifting phase accomplished \n>100 percent extension across the Ross Sea and central West \nAntarctica, and is widely perceived as a product of pure shear \nextension orthogonal to the Transantarctic Mountains that led \nto breakup and opening of the Southern Ocean between West \nAntarctica and New Zealand. New structural, petrological, \nand geochronological data from Marie Byrd Land reveal \naspects of the kinematics, thermal history, and chronology of \nthe Cretaceous intracontinental extension phase that cannot \nbe readily explained by a single progressive event. Elevated \ntemperatures in \"Lachlan-type\" crust caused extensive \ncrustal melting and mid-crustal flow within a dextral transcurrent strain environment, leading to rapid extension and \nlocally to exhumation and rapid cooling of a migmatite dome \nand detachment footwall structures. Peak metamorphism and \nonset of crustal flow that brought about WARS extension \nbetween 105 Ma and 90 Ma is kinematically, temporally, \nand spatially linked to the active convergent margin system \nof East Gondwana. West Antarctica-New Zealand breakup \nis distinguished as a separate event at 83-70 Ma, from the \nstandpoint of kinematics and thermal evolution","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"National Academies Press","publisherLocation":"Washington, DC","doi":"10.3133/ofr20071047KP09","usgsCitation":"Siddoway, C., 2007, Tectonics of the West Antarctic rift system: new light on the history and dynamics of distributed intracontinental extension: U.S. Geological Survey Open-File Report 2007-1047-KP-09, 24 p., https://doi.org/10.3133/ofr20071047KP09.","productDescription":"24 p.","startPage":"91","endPage":"114","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":280653,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047KP09.JPG"},{"id":280652,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/kp/kp09/of2007-1047kp09.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 180.0,-90.0 ], [ 180.0,-60.0 ], [ -180.0,-60.0 ], [ -180.0,-90.0 ], [ 180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd766fe4b0b2908510ae5e","contributors":{"authors":[{"text":"Siddoway, C.S.","contributorId":28893,"corporation":false,"usgs":true,"family":"Siddoway","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":487930,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70101070,"text":"ofr20071047SRP094 - 2007 - Seismic and chronostratigraphic results from SHALDRIL II, northwestern Weddell Sea","interactions":[],"lastModifiedDate":"2014-04-09T13:49:47","indexId":"ofr20071047SRP094","displayToPublicDate":"2007-01-01T12:31:00","publicationYear":"2007","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":"2007-1047-SRP-094","title":"Seismic and chronostratigraphic results from SHALDRIL II, northwestern Weddell Sea","docAbstract":"The 2006 SHALDRIL II cruise was conducted in the northwestern Weddell Sea, with primary drilling \ntargets in the James Ross Basin. A site drilled along the northern edge of the James Ross Basin sampled either latest \nEocene or earliest Oligocene deposits, providing a lower chronostratigraphic benchmark for our seismic stratigraphic \nage model. Severe sea ice conditions forced abandonment of several of the James Ross Basin sites. Three alternate \nsites were drilled along the southern flank of the Joinville Plateau. Seismic data from the area show a thick, southward \ndipping stratigraphic succession with no conspicuous gaps. Three drill sites sampled this succession and recovered \nOligocene, middle Miocene, and early Pliocene strata overlain by a thin drape of Pleistocene deposits. The Pliocene-Miocene boundary appears to be represented by a disconformity within the cored interval. Otherwise, this is one of the \nmost complete post-Eocene successions anywhere on Antarctica and its adjacent margins","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP094","usgsCitation":"Anderson, J., Wellner, J., Wise, S., Bohaty, S., Manley, P., Smith, T., Weaver, F., and Kulhanek, D., 2007, Seismic and chronostratigraphic results from SHALDRIL II, northwestern Weddell Sea: U.S. Geological Survey Open-File Report 2007-1047-SRP-094, 4 p., https://doi.org/10.3133/ofr20071047SRP094.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286017,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP094.png"},{"id":286013,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp094/of2007-1047srp094.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53559560e4b0120853e8c1d7","contributors":{"authors":[{"text":"Anderson, J.B.","contributorId":93965,"corporation":false,"usgs":true,"family":"Anderson","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":492583,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wellner, J.","contributorId":11507,"corporation":false,"usgs":true,"family":"Wellner","given":"J.","affiliations":[],"preferred":false,"id":492576,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wise, S.","contributorId":46415,"corporation":false,"usgs":true,"family":"Wise","given":"S.","email":"","affiliations":[],"preferred":false,"id":492581,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bohaty, S.","contributorId":33219,"corporation":false,"usgs":true,"family":"Bohaty","given":"S.","affiliations":[],"preferred":false,"id":492579,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Manley, P.","contributorId":37089,"corporation":false,"usgs":true,"family":"Manley","given":"P.","email":"","affiliations":[],"preferred":false,"id":492580,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Smith, T.","contributorId":28032,"corporation":false,"usgs":true,"family":"Smith","given":"T.","affiliations":[],"preferred":false,"id":492578,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Weaver, F.","contributorId":73500,"corporation":false,"usgs":true,"family":"Weaver","given":"F.","email":"","affiliations":[],"preferred":false,"id":492582,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Kulhanek, D.","contributorId":16319,"corporation":false,"usgs":true,"family":"Kulhanek","given":"D.","email":"","affiliations":[],"preferred":false,"id":492577,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}} ,{"id":70094172,"text":"ofr20071047SRP052 - 2007 - Regional seismic stratigraphic correlations of the Ross Sea: Implications for the tectonic history of the West Antarctic Rift System","interactions":[],"lastModifiedDate":"2014-02-18T12:50:36","indexId":"ofr20071047SRP052","displayToPublicDate":"2007-01-01T11:56:00","publicationYear":"2007","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":"2007-1047-SRP-052","title":"Regional seismic stratigraphic correlations of the Ross Sea: Implications for the tectonic history of the West Antarctic Rift System","docAbstract":"Using existing and new seismic reflection data, new and updated correlations of late Oligocene-early \nMiocene RSS-2 strata were made between the southern parts of Ross Sea basins. Previous studies documented \nCretaceous extension across much of Ross Sea. We interpret that Cenozoic extension also occurred across Ross Sea. \nSubsidence during and following this extension deepened existing basins and may have initiated basins in the west, \nsubsiding ridges between basins below sea level during the late Oligocene. Pre-Oligocene strata record cessation of L. \nCretaceous extension in easternmost Ross Sea. Successively younger Cenozoic extension occurred from east to west \nacross the rest of Ross Sea.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP052","usgsCitation":"Decesari, R.C., Sorlien, C., Luyendyk, B.P., Wilson, D.S., Bartek, L., Diebold, J., and Hopkins, S.E., 2007, Regional seismic stratigraphic correlations of the Ross Sea: Implications for the tectonic history of the West Antarctic Rift System: U.S. Geological Survey Open-File Report 2007-1047-SRP-052, 4 p., https://doi.org/10.3133/ofr20071047SRP052.","productDescription":"4 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282481,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP052.JPG"},{"id":282479,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp052/of2007-1047srp052.pdf"}],"otherGeospatial":"Ross Sea","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 167.51,-84.68 ], [ 167.51,-74.86 ], [ -153.12,-74.86 ], [ -153.12,-84.68 ], [ 167.51,-84.68 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd7004e4b0b29085106c6d","contributors":{"authors":[{"text":"Decesari, Robert C.","contributorId":78243,"corporation":false,"usgs":true,"family":"Decesari","given":"Robert","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":490533,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sorlien, Christopher C.","contributorId":78813,"corporation":false,"usgs":true,"family":"Sorlien","given":"Christopher C.","affiliations":[],"preferred":false,"id":490534,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luyendyk, Bruce P.","contributorId":100942,"corporation":false,"usgs":true,"family":"Luyendyk","given":"Bruce","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":490535,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wilson, Douglas S.","contributorId":68782,"corporation":false,"usgs":true,"family":"Wilson","given":"Douglas","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":490531,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bartek, Louis","contributorId":69060,"corporation":false,"usgs":true,"family":"Bartek","given":"Louis","email":"","affiliations":[],"preferred":false,"id":490532,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Diebold, John","contributorId":41736,"corporation":false,"usgs":true,"family":"Diebold","given":"John","affiliations":[],"preferred":false,"id":490530,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hopkins, Sarah E.","contributorId":20252,"corporation":false,"usgs":true,"family":"Hopkins","given":"Sarah","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":490529,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70065870,"text":"ofr20071047KP08 - 2007 - A pan-Precambrian link between deglaciation and environmental oxidation","interactions":[],"lastModifiedDate":"2014-01-07T11:55:04","indexId":"ofr20071047KP08","displayToPublicDate":"2007-01-01T11:38:00","publicationYear":"2007","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":"2007-1047-KP-08","title":"A pan-Precambrian link between deglaciation and environmental oxidation","docAbstract":"Despite a continuous increase in solar luminosity to the present, Earth’s glacial record appears to become more frequent, \nthough less severe, over geological time. At least two of the \nthree major Precambrian glacial intervals were exceptionally \nintense, with solid evidence for widespread sea ice on or near \nthe equator, well within a “Snowball Earth” zone produced \nby ice-albedo runaway in energy-balance models. The end \nof the first unambiguously low-latitude glaciation, the early \nPaleoproterozoic Makganyene event, is associated intimately \nwith the first solid evidence for global oxygenation, including the world’s largest sedimentary manganese deposit. \nSubsequent low-latitude deglaciations during the Cryogenian \ninterval of the Neoproterozoic Era are also associated with \nprogressive oxidation, and these young Precambrian ice ages \ncoincide with the time when basal animal phyla were diversifying. However, specifically testing hypotheses of cause \nand effect between Earth’s Neoproterozoic biosphere and \nglaciation is complicated because large and rapid True Polar \nWander events appear to punctuate Neoproterozoic time and \nmay have episodically dominated earlier and later intervals \nas well, rendering geographic reconstruction and age correlation challenging except for an exceptionally well-defined \nglobal paleomagnetic database.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. 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Sr and Nd isotope data indicate that the tuffs are not directly related to Ferrar \nmagmatism nor to melting of the underlying Ross orogen crust yet zircon gives a U-Pb age of 182.7±1.8 Ma, similar to \nthe U/Pb age for the Ferrar. Distribution of the silicic tuffs along 1400 km of the Transantarctic Mountains suggests, \nalternatively, a relationship to the Gondwana plate margin. Although West Antarctica comprises Mesoproterozoic \ncrustal terrains, few analyzed rocks are compatible isotopically with the Lower Jurassic tuffs. The source of the tuffs \nmust lie in unexposed Early Jurassic magmatic centers in West Antarctica or an unexposed crustal terrain beneath the \nTransantarctic Mountains.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP051","usgsCitation":"Elliot, D., Fleming, T., Foland, K., and Fanning, C., 2007, Jurassic silicic volcanism in the Transantarctic Mountains: Was it related to plate margin processes or to Ferrar magmatism?: U.S. Geological Survey Open-File Report 2007-1047-SRP-051, 5 p., https://doi.org/10.3133/ofr20071047SRP051.","productDescription":"5 p.","onlineOnly":"N","costCenters":[],"links":[{"id":282478,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP051.JPG"},{"id":282477,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp051/of2007-1047srp051.pdf"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 146.0,-88.1 ], [ 146.0,-71.4 ], [ -15.4,-71.4 ], [ -15.4,-88.1 ], [ 146.0,-88.1 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd6364e4b0b290850fec44","contributors":{"authors":[{"text":"Elliot, D.H.","contributorId":40670,"corporation":false,"usgs":true,"family":"Elliot","given":"D.H.","email":"","affiliations":[],"preferred":false,"id":490526,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fleming, T.H.","contributorId":69057,"corporation":false,"usgs":true,"family":"Fleming","given":"T.H.","email":"","affiliations":[],"preferred":false,"id":490527,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Foland, K.A.","contributorId":13357,"corporation":false,"usgs":true,"family":"Foland","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":490525,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fanning, C.M.","contributorId":82434,"corporation":false,"usgs":true,"family":"Fanning","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":490528,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70200686,"text":"70200686 - 2007 - Statistical methods for paleovector analysis","interactions":[],"lastModifiedDate":"2018-10-29T11:33:24","indexId":"70200686","displayToPublicDate":"2007-01-01T11:33:16","publicationYear":"2007","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Statistical methods for paleovector analysis","docAbstract":"Our concern is with the statistical description of paleomagnetic vectors and the estimation of their mean and variance. These vectors may come from a number of different rock units or archeological samples, representing a range of acquisition times, and be useful for studies of the mean paleomagnetic field and paleosecular variation; alternatively, the vectors may come from individual measurements taken from a given rock unit or archeological sample, representing the same moment of acquisition, and be useful for studying the acquisition process itself. Directional data of a particular polarity are usually analyzed with a Fisher distribution (1953), and data of mixed polarities are usually analyzed with a Bingham distribution (1964). Occasionally, other directional distributions are used. For example, Bingham (1983) considered the projection of a three‐dimensional (3D), scalar‐variance Gaussian distribution onto the unit sphere, something he called the “angular‐Gaussian” distribution. More recently, Khokhlov et al. (2001) considered a generalization of the angular‐Gaussian distribution, one with a covariance matrix, which they used to analyze directional data from a number of sites. With respect to intensity data, they have traditionally been treated separately from paleodirections, analyzed with normal, log‐normal, or gamma distributions. Here, for data of either a particular polarity or of mixed polarities, we summarize these works, and that of Love and Constable (2003), who developed a full‐vector, scalar‐variance, Gaussian‐statistical framework for treating directional and intensity data simultaneously and self‐consistently.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Encyclopedia of geomagnetism and paleomagnetism","language":"English","publisher":"Springer","doi":"10.1007/978-1-4020-4423-6_295","usgsCitation":"Love, J.J., 2007, Statistical methods for paleovector analysis, chap. of Encyclopedia of geomagnetism and paleomagnetism, https://doi.org/10.1007/978-1-4020-4423-6_295.","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":358884,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10da23e4b034bf6a7fc703","contributors":{"authors":[{"text":"Love, Jeffrey J. 0000-0002-3324-0348 jlove@usgs.gov","orcid":"https://orcid.org/0000-0002-3324-0348","contributorId":760,"corporation":false,"usgs":true,"family":"Love","given":"Jeffrey","email":"jlove@usgs.gov","middleInitial":"J.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":750121,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70120890,"text":"70120890 - 2007 - Integration of seafloor point data in usSEABED","interactions":[],"lastModifiedDate":"2017-08-24T09:29:55","indexId":"70120890","displayToPublicDate":"2007-01-01T11:33:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Integration of seafloor point data in usSEABED","docAbstract":"Sediments of the beach, nearshore, and continental shelves record a complex interplay of processes including wave energy and direction , currents, beach erosion or accretion, bluff or cliff retreat, fluvial input, sediment longshore and cross-shelf transport processes, contaminant content and transport, sediment sources and sinks, and others. In turn, sediments and rocks modify wave patterns, affect recreation and tourism, and provide habitat for fish, epifauna, and infauna. Character of the surficial seafloor also influences navigation, commercial and recreational fishing and gathering of other food sources, communication, piplines, national defense, and provides geologic resources including sand and gravel aggregates, minerals, and real or potential energy sources. The beaches, nearshore, and continental margins fall under overlapping levels of managerial responsibility between Federal, State, regional, and local government agencies and consortia. In addition, universities and other academic institutions investigate these places for pure or applied scientific reasons.
\nMapping is usually the first step in understanding any issue and is often comprised of remotely gathered geophysical data such as bathymetry and backscatter imagery, and groundtruthing; that is, the collection of physical and virtual samples to tie the remotely gathered data to reality. The physical samples are described and (or) carefully analyzed for grain-size information -- which records both the site's physical conditions and geologic past -- and commonly, for constituent components such as mineral and rock types (to determine onland sources and in situ chemical processes), carbonate and organic content and microfossils (for biological and oceanographic influences), and structure such as layering and bioturbation (for physical influences). The samples may also be subjected to physical tests such as comp[action analyses, liquefaction or plasticity limits, ans other parameters important when considering construction of offshore structures. In recent years, virtual sampling of the seafloor has become popular, through the use of towed video or photographic equipment and the addition of camera to oceanographic equipment such as corers and tripods.
\nBefore about ten years ago, most maps were made by hand. Recently, with the advent of desktop GIS packages, map making and resource analysis can be done nearly \"on-the-fly\" if geographically located data exist. While the problems of projection, scale, and resolution of digitized paper maps are commonly known amongst GIS-users, access to the original underlying point data allows for maps to be regenerated for digital use using statistically proven methods, provides increasing data density by including multiple studies, as well as allows the point data to be used in other ways than just mapping.
\nThese point data may be available in raw or refined or in worded descriptions. Raw data such as granulometric analyses can be manipulated through the use of known equations or empirical relationships to provide information about other parameters of the sediment, such as mean grainsize, sorting, erodability, or rugosity. If refined data are presented such as gravel, sand, and mud percentages, the parameter noted earlier may be estimated. In the case of worded descriptions, values for geologic terms can be assigned, for example, \"fine sand\" equate to 0.2 mm sized particles, to provide numeric terms for GIS or modeling purposes.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of Coastal Zone '07","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"NOAA Coastal Services Center","publisherLocation":"Charleston, SC","usgsCitation":"Reid, J.A., Williams, S.J., Zimmermann, M., Jenkins, C., and Golden, N., 2007, Integration of seafloor point data in usSEABED, in Proceedings of Coastal Zone '07, 5 p.","productDescription":"5 p.","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":292420,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53f25fe6e4b0333418718924","contributors":{"authors":[{"text":"Reid, Jane A. 0000-0003-1771-3894 jareid@usgs.gov","orcid":"https://orcid.org/0000-0003-1771-3894","contributorId":2826,"corporation":false,"usgs":true,"family":"Reid","given":"Jane","email":"jareid@usgs.gov","middleInitial":"A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":498565,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williams, S. Jeffress 0000-0002-1326-7420 jwilliams@usgs.gov","orcid":"https://orcid.org/0000-0002-1326-7420","contributorId":2063,"corporation":false,"usgs":true,"family":"Williams","given":"S.","email":"jwilliams@usgs.gov","middleInitial":"Jeffress","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":498564,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zimmermann, Mark","contributorId":49479,"corporation":false,"usgs":true,"family":"Zimmermann","given":"Mark","affiliations":[],"preferred":false,"id":498567,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jenkins, Chris","contributorId":28541,"corporation":false,"usgs":true,"family":"Jenkins","given":"Chris","affiliations":[],"preferred":false,"id":498566,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Golden, Nadine E.","contributorId":58356,"corporation":false,"usgs":true,"family":"Golden","given":"Nadine E.","affiliations":[],"preferred":false,"id":498568,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70200684,"text":"70200684 - 2007 - Observatories, program in USA","interactions":[],"lastModifiedDate":"2018-10-29T11:29:12","indexId":"70200684","displayToPublicDate":"2007-01-01T11:29:05","publicationYear":"2007","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Observatories, program in USA","docAbstract":"The Geomagnetism Program of the US Geological Survey has, for over a century now, monitored the Earth's magnetic field through a network of magnetic observatories and conducted scientific analysis on the data collected. The program traces its origins to the Reorganization Act of 1843, in which Congress authorized the creation of a coastal survey agency, as part of the Treasury Department, that was responsible for, among other things, geomagnetic surveys. The 19th century saw the establishment of relatively short‐lived magnetic stations, as well as the production of declination maps for the United States and territories. With the purchase of Alaska, coastal surveys became an increasingly higher priority, and in 1889 the Coast and Geodetic Survey, with a Division of Terrestrial Magnetism, was established. The first essentially permanent geomagnetic observatories were established under the Division's leadership of Dr. Louis A. Bauer and Dr. John A. Fleming: Cheltenham Maryland Observatory was established in 1900, subsequently moved to the Fredericksburg site in 1956; Sitka Alaska Observatory was established in 1901 and that of Honolulu Hawaii in 1902. Soon after these observatories became operational, it was found that the Sitka and Honolulu magnetometers were also sensitive to local earthquakes, and so seismometers were installed at the sites. In part, because of this colocation of instruments, the magnetic and seismological programs in the Coast and Geodetic Survey were united in 1925 under the Division of Geomagnetism and Seismology. Over the years, the Geomagnetism Program has evolved in response to the needs of the United States and in response to changes in the nation's various federal agencies. In 1903 the Coast and Geodetic Survey was transferred to the newly organized Department of Commerce, and in 1970 the survey became part of the National Oceanic and Atmospheric Administration (NOAA). In 1973, the US Geological Survey of the Department of the Interior assumed responsibility for the nation's Geomagnetism and Seismology programs.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Encyclopedia of geomagnetism and paleomagnetism","language":"English","publisher":"Springer","doi":"10.1007/978-1-4020-4423-6_231","usgsCitation":"Love, J.J., and Townshend, J., 2007, Observatories, program in USA, chap. of Encyclopedia of geomagnetism and paleomagnetism, https://doi.org/10.1007/978-1-4020-4423-6_231.","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":358882,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10da24e4b034bf6a7fc70f","contributors":{"authors":[{"text":"Love, Jeffrey J. 0000-0002-3324-0348 jlove@usgs.gov","orcid":"https://orcid.org/0000-0002-3324-0348","contributorId":760,"corporation":false,"usgs":true,"family":"Love","given":"Jeffrey","email":"jlove@usgs.gov","middleInitial":"J.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":750118,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Townshend, J.B.","contributorId":30623,"corporation":false,"usgs":true,"family":"Townshend","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":750119,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70103159,"text":"ofr20071047SRP098 - 2007 - Cretaceous and Tertiary extension throughout the Ross Sea, Antarctica","interactions":[],"lastModifiedDate":"2014-04-29T11:44:24","indexId":"ofr20071047SRP098","displayToPublicDate":"2007-01-01T11:28:00","publicationYear":"2007","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":"2007-1047-SRP-098","title":"Cretaceous and Tertiary extension throughout the Ross Sea, Antarctica","docAbstract":"Marine geophysical data from the deep sea adjacent to the Ross Sea, Antarctica suggest that \u001870 km of \nextension occurred between East and West Antarctica from 46 to 2\u0018 Ma. The Northern and Victoria Land Basins in the \nwestern Ross Sea adjacent to the Transantarctic Mountains accommodated 95 km of this extension. Several kilometers \nof Oligocene sediments are found in the Central Trough and Eastern Basin in the eastern Ross Sea. Subsidence \nmodeling accounts for these accumulations with about 40 km of extension in each basin centered on 35 Ma; therefore \nRoss Sea-wide Tertiary extension was comparable to extension in the deep-sea system. The early Tertiary geometry was \nof one oceanic rift that branched into at least three rifts in the continental lithosphere. This pattern is likely due to the \ncontrast of physical properties and thermal state between the two different lithospheres at the continent-ocean boundary.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP098","usgsCitation":"Decesari, R.C., Wilson, D.C., Luyendyk, B.P., and Faulkner, M., 2007, Cretaceous and Tertiary extension throughout the Ross Sea, Antarctica: U.S. Geological Survey Open-File Report 2007-1047-SRP-098, 6 p., https://doi.org/10.3133/ofr20071047SRP098.","productDescription":"6 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":286763,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp098/of2007-1047srp098.pdf"},{"id":286764,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP098.JPG"}],"otherGeospatial":"Antarctica","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -180.0,-90.0 ], [ -180.0,-60.0 ], [ 180.0,-60.0 ], [ 180.0,-90.0 ], [ -180.0,-90.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5360c9e9e4b082a3ecf53df1","contributors":{"authors":[{"text":"Decesari, Robert C.","contributorId":78243,"corporation":false,"usgs":true,"family":"Decesari","given":"Robert","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":493173,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, Douglas C.","contributorId":34828,"corporation":false,"usgs":true,"family":"Wilson","given":"Douglas","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":493172,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luyendyk, Bruce P.","contributorId":100942,"corporation":false,"usgs":true,"family":"Luyendyk","given":"Bruce","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":493175,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Faulkner, Michael","contributorId":100294,"corporation":false,"usgs":true,"family":"Faulkner","given":"Michael","email":"","affiliations":[],"preferred":false,"id":493174,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70200683,"text":"70200683 - 2007 - Magnetic indices","interactions":[],"lastModifiedDate":"2018-10-29T11:25:07","indexId":"70200683","displayToPublicDate":"2007-01-01T11:25:00","publicationYear":"2007","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Magnetic indices","docAbstract":"Magnetic indices are simple measures of magnetic activity that occurs, typically, over periods of time of less than a few hours and which is recorded by magnetometers at ground‐based observatories (Mayaud, 1980; Rangarajan, 1989; McPherron, 1995). The variations that indices measure have their origin in the Earth's ionosphere and magnetosphere. Some indices having been designed specifically to quantify idealized physical processes, while others function as more generic measures of magnetic activity. Indices are routinely used across the many subdisciplines in geomagnetism, including direct studies of the physics of the upper atmosphere and space, for induction studies of the Earth's crust and mantle, and for removal of disturbed‐time magnetic data in studies of the Earth's deep interior and core. Here we summarize the most commonly used magnetic indices, using data from a worldwide distribution of observatories, those shown in Figure M31 and whose sponsoring agencies are given in Table M1.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Encyclopedia of geomagnetism and paleomagnetism","language":"English","publisher":"Springer","doi":"10.1007/978-1-4020-4423-6_178","usgsCitation":"Love, J.J., and Remick, K., 2007, Magnetic indices, chap. of Encyclopedia of geomagnetism and paleomagnetism, https://doi.org/10.1007/978-1-4020-4423-6_178.","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":358881,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c10da24e4b034bf6a7fc713","contributors":{"authors":[{"text":"Love, Jeffrey J. 0000-0002-3324-0348 jlove@usgs.gov","orcid":"https://orcid.org/0000-0002-3324-0348","contributorId":760,"corporation":false,"usgs":true,"family":"Love","given":"Jeffrey","email":"jlove@usgs.gov","middleInitial":"J.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":750116,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Remick, K.J.","contributorId":78139,"corporation":false,"usgs":true,"family":"Remick","given":"K.J.","email":"","affiliations":[],"preferred":false,"id":750117,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70094167,"text":"ofr20071047SRP050 - 2007 - New magnetic anomaly map of East Antarctica and surrounding regions","interactions":[],"lastModifiedDate":"2014-02-18T11:30:56","indexId":"ofr20071047SRP050","displayToPublicDate":"2007-01-01T11:19:00","publicationYear":"2007","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":"2007-1047-SRP-050","title":"New magnetic anomaly map of East Antarctica and surrounding regions","docAbstract":"More than 500,000 line-km of new airborne and shipborne data, recently acquired by the international\ncommunity over East Antarctica and surrounding regions, significantly upgrade the Antarctic Digital Magnetic \nAnomaly Project (ADMAP) compilation and lead to substantial improvements in magnetic anomaly pattern recognition. \nNew data have been matched in one inverse operation by minimizing the data differences for the areas of overlap. The \naeromagnetic data show many previously unknown magnetic patterns, lineaments and trends, defining the spatial extent \nof Ferrar volcanics and plutonic Granite Harbour Intrusives in the Transantarctic Mountains and previously unknown \ntectonic trends of the East Antarctic craton. Regional aeromagnetic investigations have successfully delineated Early \nPaleozoic inherited crustal features along the flanks of the West Antarctic Rift System and the southern boundary of the \nArchean Ruker Terrane in the Prince Charles Mountains. Magnetic records along the East Antarctic continental margin \nprovide new constraints on the breakup of Gondwana.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP050","usgsCitation":"Golynsky, A., Blankenship, D., Chiappini, M., Damaske, D., Ferraccioli, F., Finn, C., Golynsky, D., Goncharov, A., Ishihara, T., Ivanov, S., Jokat, W., Kim, H., Konig, M., Masolov, V., Nogi, Y., Sand, M., Studing, M., and ADMAP Working Group, 2007, New magnetic anomaly map of East Antarctica and surrounding regions: U.S. Geological Survey Open-File Report 2007-1047-SRP-050, Report: 4 p.; Plate: 30.85 inches x 34.18 inches, https://doi.org/10.3133/ofr20071047SRP050.","productDescription":"Report: 4 p.; Plate: 30.85 inches x 34.18 inches","additionalOnlineFiles":"Y","costCenters":[],"links":[{"id":282476,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP050.JPG"},{"id":282475,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp050/of2007-1047srp050_plate1.pdf"},{"id":282474,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp050/of2007-1047srp050.pdf"}],"otherGeospatial":"Antarctica","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd68fce4b0b290851026ba","contributors":{"authors":[{"text":"Golynsky, A.","contributorId":78242,"corporation":false,"usgs":true,"family":"Golynsky","given":"A.","email":"","affiliations":[],"preferred":false,"id":490518,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blankenship, D.","contributorId":108260,"corporation":false,"usgs":true,"family":"Blankenship","given":"D.","affiliations":[],"preferred":false,"id":490524,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chiappini, Massimo","contributorId":73106,"corporation":false,"usgs":true,"family":"Chiappini","given":"Massimo","email":"","affiliations":[],"preferred":false,"id":490516,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Damaske, D.","contributorId":66771,"corporation":false,"usgs":true,"family":"Damaske","given":"D.","affiliations":[],"preferred":false,"id":490515,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ferraccioli, Fausto","contributorId":43591,"corporation":false,"usgs":true,"family":"Ferraccioli","given":"Fausto","email":"","affiliations":[],"preferred":false,"id":490510,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Finn, C.","contributorId":60219,"corporation":false,"usgs":true,"family":"Finn","given":"C.","email":"","affiliations":[],"preferred":false,"id":490514,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Golynsky, D.","contributorId":93379,"corporation":false,"usgs":true,"family":"Golynsky","given":"D.","email":"","affiliations":[],"preferred":false,"id":490519,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Goncharov, A.","contributorId":105221,"corporation":false,"usgs":true,"family":"Goncharov","given":"A.","affiliations":[],"preferred":false,"id":490523,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Ishihara, T.","contributorId":14298,"corporation":false,"usgs":true,"family":"Ishihara","given":"T.","email":"","affiliations":[],"preferred":false,"id":490507,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Ivanov, S.","contributorId":37252,"corporation":false,"usgs":true,"family":"Ivanov","given":"S.","email":"","affiliations":[],"preferred":false,"id":490509,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Jokat, W.","contributorId":59242,"corporation":false,"usgs":true,"family":"Jokat","given":"W.","affiliations":[],"preferred":false,"id":490513,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Kim, H.R.","contributorId":100742,"corporation":false,"usgs":true,"family":"Kim","given":"H.R.","email":"","affiliations":[],"preferred":false,"id":490520,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Konig, M.","contributorId":35229,"corporation":false,"usgs":true,"family":"Konig","given":"M.","email":"","affiliations":[],"preferred":false,"id":490508,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Masolov, Valery","contributorId":102788,"corporation":false,"usgs":true,"family":"Masolov","given":"Valery","email":"","affiliations":[],"preferred":false,"id":490522,"contributorType":{"id":1,"text":"Authors"},"rank":14},{"text":"Nogi, Y.","contributorId":102379,"corporation":false,"usgs":true,"family":"Nogi","given":"Y.","email":"","affiliations":[],"preferred":false,"id":490521,"contributorType":{"id":1,"text":"Authors"},"rank":15},{"text":"Sand, M.","contributorId":49270,"corporation":false,"usgs":true,"family":"Sand","given":"M.","email":"","affiliations":[],"preferred":false,"id":490511,"contributorType":{"id":1,"text":"Authors"},"rank":16},{"text":"Studing, M.","contributorId":76224,"corporation":false,"usgs":true,"family":"Studing","given":"M.","email":"","affiliations":[],"preferred":false,"id":490517,"contributorType":{"id":1,"text":"Authors"},"rank":17},{"text":"ADMAP Working Group","contributorId":128064,"corporation":true,"usgs":false,"organization":"ADMAP Working Group","id":535628,"contributorType":{"id":1,"text":"Authors"},"rank":18}]}} ,{"id":70120415,"text":"70120415 - 2007 - Coupling alongshore variations in wave energy to beach morphologic change using the SWAN wave model at Ocean Beach, San Francisco, CA","interactions":[],"lastModifiedDate":"2014-08-14T11:45:25","indexId":"70120415","displayToPublicDate":"2007-01-01T11:15:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Coupling alongshore variations in wave energy to beach morphologic change using the SWAN wave model at Ocean Beach, San Francisco, CA","docAbstract":"Coastal managers have faced increasing pressure to manage their resources wisely over the last century as a result of heightened development and changing environmental forcing. It is crucial to understand seasonal changes in beach volume and shape in order to identify areas vulnerable to accelerated erosion. Shepard (1950) was among the first to quantify seasonal beach cycles. Sonu and Van Beek (1971) and Wright et al. (1985) described commonly occurring beach states. Most studies utilize widest spaced 2-D cross shore profiles or shorelines extracted from aerial photographs (e.g. Winant et al. 1975; Aubrey, 1979, Aubrey and Ross, 1985; Larson and Kraus, 1994; Jimenez et al., 1977; Lacey and Peck, 1998; Guillen et al., 1999; Norcorss et al., 2002) to analyzed systematic changes in beach evolution. But with the exception of established field stations, such as Duck, NC (Birkemeier and Mason, 1984), ans Hazaki Oceanographical Research Station (HORS) in Japan (Katoh, 1997), there are very few beach change data sets with high temporal and spatial resolutions (e.g. Dail et al., 2000; Ruggiero et al., 2005; Yates et al., in press). Comprehensive sets of nearshore morphological data and local in situ measurements outside of these field stations are very rare and virtually non-existent high-energy coasts. Studied that have attempted to relate wave statistics to beach morphology change require some knowledge of the nearshore wave climate, and have had limited success using offshore measurement (Sonu and Van Beek, 1971; Dail et al., 2000).
\nThe primary objective of this study is to qualitatively compare spatially variable nearshore wave predictions to beach change measurements in order to understand the processes responsible for a persistent erosion 'hotspot' at Ocean Beach, San Francisco, CA. Local wave measurements are used to calibrate and validate a wave model that provides nearshore wave prediction along the beach. The model is run for thousands of binned offshore wave conditions to help isolate the effects of offshore wave direction and period on nearshore wave predictions. Alongshore varying average beach change statistics are computed at specific profile locations from topographic beach surveys and lidar data.
\nThe study area is located in the San Francisco Bight in central California. Ocean Beach is a seven kilometer long north-south trending sandy coastline located just south of the entrance to the San Francisco Bay Estuary (Figure 1). It contains an erosion hotspot in the southern part of the beach which has resulted in damage to local infrastructure and is the cause of continued concern. A wide range of field data collection and numerical modeling efforts have been focused here as part of the United States Geological Survey's (USGS) San Francisco Bight Coastal Processes Study, which began in October 2003 and represents the first comprehensive study of coastal processes at the mouth of San Francisco Bay.
\nOcean Beach is exposed to very strong tidal flows, with measured currents often in excess of 1 m/s at the north end of the beach. Current profiler measurements indicate that current magnitudes are greater in the northern portion of the beach, while wave energy is greater in the southern portion where erosion problems are greatest (Barnard et al., 2007). The sub-aerial beach volume fluctuates seasonally over a maximum envelope of 400,000 m3 for the seven kilometer stretch (Barnard et al, 2007). The wave climate in the region is dominated by an abundance of low frequency energy (greater than 20 s period) and prevailing northwest incident wave angles. The application of a wave model to the region is further complicated by the presence of the Farallon Islands 40 kilometers west, and a massive ebb tidal delta at the mouth of San Francisco Bay (~150 km2), which creates complicated refraction patterns as wave energy moves from offshore Ocean Beach; however the cost and threat of the energetic nearshore environment have limited the temporal and spatial resolution of these measurements. Applying numerical models to predict wave and current patterns along the beach can help supplement the filed data that exists and provide opportunities to make prediction about the impacts of changing environmental forcing.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"10th International Workshop on Wind Hindcasting and Forecasting and Coastal Hazard Symposium: North Shore, Oahu, November 11-16, 2007","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Wave Workshop","usgsCitation":"Eshleman, J.L., Barnard, P., Erikson, L., and Hanes, D.M., 2007, Coupling alongshore variations in wave energy to beach morphologic change using the SWAN wave model at Ocean Beach, San Francisco, CA, in 10th International Workshop on Wind Hindcasting and Forecasting and Coastal Hazard Symposium: North Shore, Oahu, November 11-16, 2007, 20 p.","productDescription":"20 p.","numberOfPages":"20","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":292190,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":292189,"type":{"id":15,"text":"Index Page"},"url":"https://www.waveworkshop.org/10thWaves/ProgramFrameset.htm"}],"country":"United States","state":"California","city":"San Francisco","otherGeospatial":"Ocean Beach","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.596909,37.693335 ], [ -122.596909,37.929771 ], [ -122.327915,37.929771 ], [ -122.327915,37.693335 ], [ -122.596909,37.693335 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53edcd44e4b0f61b386d23b1","contributors":{"authors":[{"text":"Eshleman, Jodi L.","contributorId":91940,"corporation":false,"usgs":true,"family":"Eshleman","given":"Jodi","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":498175,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barnard, Patrick L.","contributorId":54936,"corporation":false,"usgs":true,"family":"Barnard","given":"Patrick L.","affiliations":[],"preferred":false,"id":498174,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Erikson, Li H.","contributorId":10880,"corporation":false,"usgs":true,"family":"Erikson","given":"Li H.","affiliations":[],"preferred":false,"id":498173,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hanes, Daniel M.","contributorId":96360,"corporation":false,"usgs":true,"family":"Hanes","given":"Daniel","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":498176,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70120411,"text":"70120411 - 2007 - Swash zone characteristics at Ocean Beach, San Francisco, CA","interactions":[],"lastModifiedDate":"2014-08-14T11:11:04","indexId":"70120411","displayToPublicDate":"2007-01-01T11:07:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Swash zone characteristics at Ocean Beach, San Francisco, CA","docAbstract":"Runup data collected during the summer of 2005 at Ocean Beach, San Francisco, CA are analyzed and considered to be typical summer swash characteristics at this site. Analysis shows that the beach was dissipative with Iribarren numbers between 0.05 and 0.4 and that infragravity energy dominated. Foreshore slopes were mild between 0.01 and 0.05 with swash periods on the order of a minute. Predicted runup heights obtained with six previously developed analytical runup formulae were compared to measured extreme runup statistics. Formulations dependent on offshore wave height, foreshore slope and deep water wavelength gave reasonable results.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Coastal engineering 2006: proceedings of the 30th international conference: San Diego, California, USA, 3-8 September 2006","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"World Scientific","doi":"10.1142/9789812709554_0078","usgsCitation":"Erikson, L.H., Hanes, D., Barnard, P., and Gibbs, A.E., 2007, Swash zone characteristics at Ocean Beach, San Francisco, CA, in Coastal engineering 2006: proceedings of the 30th international conference: San Diego, California, USA, 3-8 September 2006, v. 1, p. 909-921, https://doi.org/10.1142/9789812709554_0078.","productDescription":"13 p.","startPage":"909","endPage":"921","numberOfPages":"13","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":292183,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":292182,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1142/9789812709554_0078"}],"country":"United States","state":"California","city":"San Francisco","otherGeospatial":"Ocean Beach","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -122.596909,37.693335 ], [ -122.596909,37.929771 ], [ -122.327915,37.929771 ], [ -122.327915,37.693335 ], [ -122.596909,37.693335 ] ] ] } } ] }","volume":"1","noUsgsAuthors":false,"publicationDate":"2012-06-07","publicationStatus":"PW","scienceBaseUri":"53edcd52e4b0f61b386d248a","contributors":{"authors":[{"text":"Erikson, L. H.","contributorId":21366,"corporation":false,"usgs":true,"family":"Erikson","given":"L.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":498170,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hanes, D.M.","contributorId":22479,"corporation":false,"usgs":true,"family":"Hanes","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":498171,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barnard, P.L.","contributorId":20527,"corporation":false,"usgs":true,"family":"Barnard","given":"P.L.","email":"","affiliations":[],"preferred":false,"id":498169,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gibbs, A. E.","contributorId":54229,"corporation":false,"usgs":true,"family":"Gibbs","given":"A.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":498172,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70094918,"text":"ofr20071047SRP068 - 2007 - The United States Polar Rock Repository: A geological resource for the Earth science community","interactions":[],"lastModifiedDate":"2014-02-25T11:28:24","indexId":"ofr20071047SRP068","displayToPublicDate":"2007-01-01T11:05:00","publicationYear":"2007","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":"2007-1047-SRP-068","title":"The United States Polar Rock Repository: A geological resource for the Earth science community","docAbstract":"The United States Polar Rock Repository (USPRR) is a U. S. national facility designed for the permanent \ncuratorial preservation of rock samples, along with associated materials such as field notes, annotated air photos and \nmaps, raw analytic data, paleomagnetic cores, ground rock and mineral residues, thin sections, and microfossil mounts, \nmicroslides and residues from Polar areas. This facility was established by the Office of Polar Programs at the U. S. \nNational Science Foundation (NSF) to minimize redundant sample collecting, and also because the extreme cold and \nhazardous field conditions make fieldwork costly and difficult. The repository provides, along with an on-line database \nof sample information, an essential resource for proposal preparation, pilot studies and other sample based research that \nshould make fieldwork more efficient and effective. This latter aspect should reduce the environmental impact of \nconducting research in sensitive Polar Regions. The USPRR also provides samples for educational outreach. Rock \nsamples may be borrowed for research or educational purposes as well as for museum exhibits.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Antarctica: A Keystone in a Changing World--Online Proceedings for the Tenth International Symposium on Antarctic Earth Sciences. Santa Barbara, California, U.S.A.--August 26 to September 1, 2007","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20071047SRP068","usgsCitation":"Grunow, A.M., Elliot, D.H., and Codispoti, J.E., 2007, The United States Polar Rock Repository: A geological resource for the Earth science community: U.S. Geological Survey Open-File Report 2007-1047-SRP-068, Report: 3 p.; Plate 1: 2 p.; Plate 2: 1 p.; Plate 3: 1 p., https://doi.org/10.3133/ofr20071047SRP068.","productDescription":"Report: 3 p.; Plate 1: 2 p.; Plate 2: 1 p.; Plate 3: 1 p.","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":282748,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp068/of2007-1047srp068.pdf"},{"id":282749,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20071047SRP068.JPG"},{"id":282753,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp068/of2007-1047srp068_plate2.pdf"},{"id":282754,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp068/of2007-1047srp068_plate3.pdf"},{"id":282752,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2007/1047/srp/srp068/of2007-1047srp068_plate1.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd775be4b0b2908510b7b6","contributors":{"authors":[{"text":"Grunow, Annie M.","contributorId":34822,"corporation":false,"usgs":true,"family":"Grunow","given":"Annie","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":490948,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elliot, David H.","contributorId":51597,"corporation":false,"usgs":true,"family":"Elliot","given":"David","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":490949,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Codispoti, Julie E.","contributorId":105641,"corporation":false,"usgs":true,"family":"Codispoti","given":"Julie","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":490950,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70047568,"text":"ds69J11 - 2007 - Outcrop descriptions and fossils from the Upper Cretaceous Frontier Formation, Wind River Basin and adjacent areas, Wyoming: Chapter 11 in Petroleum systems and geologic assessment of oil and gas resources in the Wind River Basin Province, Wyoming","interactions":[],"lastModifiedDate":"2013-08-12T11:12:38","indexId":"ds69J11","displayToPublicDate":"2007-01-01T11:01:00","publicationYear":"2007","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":"69-J-11","title":"Outcrop descriptions and fossils from the Upper Cretaceous Frontier Formation, Wind River Basin and adjacent areas, Wyoming: Chapter 11 in Petroleum systems and geologic assessment of oil and gas resources in the Wind River Basin Province, Wyoming","docAbstract":"The Wind River Basin of central Wyoming trends west-northwest from near the community of Alcova to near the town of Dubois (fig. 1). On the perimeter of the basin, outcrops of the Frontier Formation were examined and described during the years 1972-1975. Invertebrate fossils were collected from those outcrops during the years 1972-1996, in places with the assistance of other earth scientists\n(see Acknowledgments).\nThe Frontier Formation in the Wind River Basin, ranging in thickness from 650 to 1,000 ft thick, consists mainly of sandstone, siltstone, shale, and bentonite of early Late Cretaceous age. The Frontier conformably overlies the Mowry Shale and is conformably overlain by the Cody Shale. A basal unit of the Cody, a sequence of marine noncalcareous shale, is named the Sage Breaks Member. The Frontier consists of two or three members, separated by disconformities; in ascending order, the Belle Fourche, Emigrant Gap, and Wall Creek. At several localities, the Emigrant Gap Member is missing. The formation was deposited mainly in marine environments, although nonmarine beds are conspicuous in the western part of the basin. Strata of the Frontier record a succession of marine regressions and transgressions. Molluscan fossils from the marine beds were identified and related to the chronostratigraphic chart shown in figure 2. The absolute ages on the chart were determined and supplied by J.D. Obradovich (Cobban and others, 2006). In this region, the Belle Fourche is of Cenomanian age, the Emigrant Gap is of early middle Turonian age, and the Wall Creek is of late Turonian and early Coniacian ages.\nThe main purpose of this report is to present biostratigraphic information from studies of the Frontier Formation in the Wind River Basin that could be useful for future stratigraphic investigations of the formation throughout Wyoming. Locations of outcrop sections and associated fossil collections are depicted on accompanying maps and aerial photographs. Graphic descriptions of strata in the outcrops and identifications of fossils from nearby localities also are presented. Those fossils named on the graphic sections commonly have the most restricted time-spans. Fossils collected near the outcrops studied are not always named on the enclosed graphic sections because (1) the specimens are less useful for dating the enclosing beds, (2) the specimens are duplicates, or (3) the specimens could not be related to specific strata in the sections. The names, locations, and members of the outcrop sections and the approximate ages of the constituent strata are summarized in table 1.\nThe index maps used to show locations of outcrop sections and fossil collections are from scanned versions of U.S. Geological Survey topographic maps of various scales and were obtained from TerraServer®. The portion of each map used depended on the areal distribution of the localities involved. The named quadrangles used for locality descriptions, however, all refer to 7½-minute, 1:24,000-scale quadrangles (for example, “Alcova”). The aerial photographs also are from TerraServer®; http://www.terraserver.com/.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Petroleum systems and geologic assessment of oil and gas resources in the Wind River Basin Province, Wyoming (Data Series 69-J)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ds69J11","collaboration":"This report is Chapter 11 in Petroleum systems and geologic assessment of oil and gas resources in the Wind River Basin Province, Wyoming. For more information, see: Data Series 69-J.","usgsCitation":"Merewether, E., and Cobban, W.A., 2007, Outcrop descriptions and fossils from the Upper Cretaceous Frontier Formation, Wind River Basin and adjacent areas, Wyoming: Chapter 11 in Petroleum systems and geologic assessment of oil and gas resources in the Wind River Basin Province, Wyoming: U.S. Geological Survey Data Series 69-J-11, vi, 95 p., https://doi.org/10.3133/ds69J11.","productDescription":"vi, 95 p.","numberOfPages":"101","costCenters":[{"id":674,"text":"Wind River Basin Province Assessment Team","active":false,"usgs":true}],"links":[{"id":276374,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ds69j11.png"},{"id":276373,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/dds/dds-069/dds-069-j/REPORTS/69_J_CH_11.pdf"},{"id":276372,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/dds/dds-069/dds-069-j/"}],"country":"United States","state":"Wyoming","otherGeospatial":"Wind River Basin Province","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -110.1,42.0 ], [ -110.1,44.0 ], [ -106.0,44.0 ], [ -106.0,42.0 ], [ -110.1,42.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"520a03f5e4b0026c2bc11c24","contributors":{"authors":[{"text":"Merewether, E.A.","contributorId":32517,"corporation":false,"usgs":true,"family":"Merewether","given":"E.A.","affiliations":[],"preferred":false,"id":482423,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cobban, W. A.","contributorId":21577,"corporation":false,"usgs":true,"family":"Cobban","given":"W.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":482422,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}