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Here are some USGS Web pages with more information on bathymetry measurement and Anywhere:

Coastal and Marine Geology(CMG) InfoBank Access to InfoBank,an online data catalog, to browse or retrieve coastal and marine geology program information, images, and data on gravity, bathymetry, seismometry, magnetics, samples, facilities, cruises and equipment. (Score: 1.000)

Bering and Chukchi Sea databases bathymetry coverages Downloadable files of digital bathymetry of U.S. waters, the Bering and Chukchi Seas, Bering Strait, and Gulf of Anadyr in polygon ARC/INFO coverages generated from both digital and paper bathymetry sources developed to support marine research. (Score: 0.701)

Atlantic margin offshore sediments: cooperative database and GIS development website This site is designed to provide information on federal interagency and cooperative developments related to coastal sand and gravel resources and management issues along the Atlantic continental margin. (Score: 0.612)

Hydrates cruise in the Gulf of Mexico Investigation of the upper- and middle continental slope of the Mississippi Canyon, including the Gulf of Mexico, for the distribution of gas-hydrate deposits with links to a DEM image map, bathymetry data, and research technology. (Score: 0.571)

Multibeam mapping of selected areas of the outer continental shelf, northwestern Gulf of Mexico: data, images, and GIS Report provides the multibeam bathymetry and acoustic backscatter data, images, FGDC-compliant metadata, and GIS data from the 2002 surveys and 1997 USGS surveys of the Gulf. (Score: 0.571)

Pacific Seafloor Mapping Project Homepage for the Pacific Seafloor Mapping Project with links to images, downloadable data, applications, fly-by movies, products, publications, and contacts for studies of San Francisco Bay, Puget Sound, Lake Tahoe, and other Pacific areas. (Score: 0.554)

Kansas reservoir sediment studies Report of completed reservoir sediment studies in Kansas using a combination of bathymetric surveying, sediment coring, chemical analysis, and statistical analysis to understand the quantity and quality of deposited sediment. (Score: 0.451)

Cruise report by Coastal Surveyor Cruise C-1-99-SC: multibeam mapping of the Long Beach, California, continental shelf Description of the work and results of a cruise for the Pacific Sea-Floor Mapping project to map the Long Beach, California, continental shelf based on data from high-resolution multibeam technology. (Score: 0.406)

Gulf of Maine Information System Research Environmental Data and Information Management System (REDIMS) for the Gulf of Maine. (Score: 0.400)

Multibeam mapping of the Pinnacles region, Gulf of Mexico Report on multibeam sonar imaging to produce bathymetric mapping of the reef tract known as The Pinnacles, northern Gulf of Mexico with links to images (ASCII or ArcInfo formats), data, metadata, ArcExplorer 2.0 project, and cruise report. (Score: 0.395)

USGS studies in the New York Bight Describes and provides links to USGS research in the location of the estuary and coast of Long Island, New York, to map the sea-floor and to study sediment transport, contaminants, and sand resources and coastal vulnerability. (Score: 0.387)

Central California Digital Elevation Model (DEM) and bathymetry images Digital Elevation Model (DEM) images and bathymetry data of the San Francisco Bay, Santa Clara, and the Monterey Bay and Canyon areas. (Score: 0.367)

Multibeam data and socio-economic issues in west-central San Francisco Bay Webpage based on USGS Open File Report 98-139 links to information on the San Francisco Bay estuary to study dredge disposal effects, fish habitats, sediment transport, rock pinnacles and navigation, and consequences of a large oil spill. (Score: 0.367)

San Francisco Bay bathymetry web site Part of the webpages of Access USGS - San Francisco Bay and Delta,this web site provides location-depth grids of bathymetry available for San Francisco Bay and provides some tools for examining those grids. (Files in .gif,.jpg, or .html formats). (Score: 0.367)

San Francisco Bay: Central Bay region multibeam backscatter and bathymetry mosaics Landsat TM and bathymetry mosaic images of sediment and pollutant transport in central San Francisco Bay. (Score: 0.367)

Nearshore Benthic Habitat Project Homepage for the Nearshore Benthic Habitats Project for mapping benthic habitat of marine life in areas set aside as protected areas or are areas of ongoing or planned fish population studies with links to research cruises and preliminary results. (Score: 0.358)

Gulf of the Farallones regional bathymetry and sidescan-sonar digital mosaics Remotely-sensed image products covering the Gulf of the Farallones region west of San Francisco. (Score: 0.336)

Western lake catchment systems - Bear Lake region, Idaho-Utah Homepage for project on Bear Lake, Idaho-Utah, to study past climate change and effect on lake catchment basins. Includes link to summary, personnel, geology, methods used including coring and seismic surveying, and publications. (Score: 0.275)

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About bathymetry measurement:

Definition: Measurement of the ocean depths in order to determine the sea floor topography [Adapted from McGraw-Hill Dic. of Scientific and Technical Terms, 5th ed.]