gov.noaa.ngdc:globalDOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce20090101In August 2008, the National Geophysical Data Center (NGDC), an office of the National Oceanic and Atmospheric Administration (NOAA), developed the ETOPO1 Global Relief Model as an improvement to the ETOPO2v2 Global Relief Model. ETOPO1 is available in "Ice Surface" (top of Antarctic and Greenland ice sheets) and "Bedrock" (base of the ice sheets) versions. Both versions of ETOPO1 were generated from diverse global and regional digital data sets, which were shifted to common horizontal and vertical datums, and then evaluated and edited as needed. Bathymetric, topographic, and shoreline data used in ETOPO1 were obtained from NGDC, Antarctic Digital Database (ADD), European Ice Sheet Modeling Initiative (EISMINT), Scientific Committee on Antarctic Research (SCAR), Japan Oceanographic Data Center (JODC), Caspian Environment Programme (CEP), Mediterranean Science Commission (CIESM), National Aeronautics and Space Administration (NASA), National Snow and Ice Data Center (NSIDC), Scripps Institute of Oceanography (SIO), and Leibniz Institute for Baltic Sea Research (LIBSR). ETOPO1 is vertically referenced to sea level, and horizontally referenced to the World Geodetic System of 1984 (WGS 84). Cell size for ETOPO1 is 1 arc-minute.Developed to support global research, exploration, and education1940010120080101UnknownCompleteasNeeded-180.00180.0090.00-90.00NASA/GCMD Earth Science KeywordsEarth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor TopographyEarth Science > Oceans > Bathymetry/Seafloor Topography > BathymetryEarth Science > Oceans > Bathymetry/Seafloor Topography > Water DepthEarth Science > Land Surface > Topography > Terrain ElevationEarth Science > Land Surface > Topography > Topographical ReliefINFOTERRA Keyword ThesaurusINFOTERRA > Subject disciplines > Geophysics > GeophysicsINFOTERRA > Subject disciplines > Geomorphology > GeomorphologyNASA/GCMD Data Center KeywordsWDC/MGG, BOULDER > World Data Center for Marine Geology and Geophysics, BoulderDOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of CommerceUncontrolledGlobal reliefGridded elevationsIntegrated bathymetry and topographyGeospatial PlatformngdaElevationNASA/GCMD Services KeywordsDATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMSDATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVALDATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSINGNASA/GCMD Services KeywordsDATA ANALYSIS AND VISUALIZATION > GEOGRAPHIC INFORMATION SYSTEMS > WEB-BASED GEOGRAPHIC INFORMATION SYSTEMSDATA MANAGEMENT/DATA HANDLING > DATA SEARCH AND RETRIEVALDATA ANALYSIS AND VISUALIZATION > VISUALIZATION/IMAGE PROCESSINGNASA/GCMD Location KeywordsGeographic Region > Global LandGeographic Region > Global OceanNoneUse Limitation: Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series.; Use Limitation: Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.; Use Limitation: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.; Use Limitation: These data not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For official navigation products, please refer to the U.S. nautical charts available from the NOAA Office of Coast Survey: http://www.nauticalcharts.noaa.gov.; Use Limitation: These data not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For official navigation products, please refer to the U.S. nautical charts available from the NOAA Office of Coast Survey: http://www.nauticalcharts.noaa.gov.; DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of CommerceDOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce DEM Information dem.info@noaa.gov pointOfContactphysical and mailing Unknowndem.info@noaa.govUnknown 20130531DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commercemailing and physicalUnknowndem.info@noaa.govContent Standard for Digital Geospatial Metadata: Extensions for Remote Sensing MetadataFGDC-STD-012-2002