A new 30-arc second resolution global topography/bathymetry grid (SRTM30_PLUS) has been developed from a wide variety of data sources. Land and ice topography comes from the SRTM30 and ICESat topography, respectively. Ocean bathymetry is based on a new satellite-gravity model where the gravity-to-topography ratio is calibrated using 298 million edited soundings. The main contribution of this study is the compilation and editing of the raw soundings, which come from NOAA, individual scientists, SIO, NGA, JAMSTEC, IFREMER, GEBCO, and NAVOCEANO. The gridded bathymetry is available for ftp download in the same format as the 33 tiles of SRTM30 topography. There are 33 matching tiles of source identification number to convey the provenance of every grid cell. The raw sounding data, converted to a simple common format, are also available for ftp download.
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Original Articles
Global Bathymetry and Elevation Data at 30 Arc Seconds Resolution: SRTM30_PLUS
J. J. Becker Scripps Institution of Oceanography , La Jolla, California, USA , D. T. Sandwell Scripps Institution of Oceanography , La Jolla, California, USA , W. H. F. Smith NOAA , Silver Spring, Maryland, USA , J. Braud U.S. Naval Oceanographic Office , Stennis Space Center, Mississippi, USA , B. Binder Scripps Institution of Oceanography , La Jolla, California, USA , J. Depner U.S. Naval Oceanographic Office , Stennis Space Center, Mississippi, USA , D. Fabre U.S. Naval Oceanographic Office , Stennis Space Center, Mississippi, USA , J. Factor National Geospatial-Intelligence Agency , St. Louis, Missouri, and Bethesda, Maryland, USA , S. Ingalls National Geospatial-Intelligence Agency , St. Louis, Missouri, and Bethesda, Maryland, USA , S-H. Kim Scripps Institution of Oceanography , La Jolla, California, USA , R. Ladner Scripps Institution of Oceanography , La Jolla, California, USA , K. Marks NOAA , Silver Spring, Maryland, USA , S. Nelson Scripps Institution of Oceanography , La Jolla, California, USA , A. Pharaoh International Hydrographic Bureau , Monaco , R. Trimmer National Geospatial-Intelligence Agency , St. Louis, Missouri, and Bethesda, Maryland, USA , J. Von Rosenberg National Geospatial-Intelligence Agency , St. Louis, Missouri, and Bethesda, Maryland, USA , G. Wallace National Geospatial-Intelligence Agency , St. Louis, Missouri, and Bethesda, Maryland, USA & P. Weatherall British Oceanographic Data Centre , Liverpool, UK show all
Pages 355-371
Received 08 Oct 2008
Accepted 13 Mar 2009
Published online: 04 Nov 2009