description: This map is designed to be used as a base map by marine GIS professionals and as a reference map by anyone interested
in ocean data. The base map features marine bathymetry. Land features include inland waters and roads overlaid on land cover
and shaded relief imagery. The map was compiled from a variety of best available sources from several data providers, including
General Bathymetric Chart of the Oceans GEBCO_08 Grid, National Oceanic and Atmospheric Administration (NOAA), and National
Geographic, DeLorme, HERE, Geonames.org, and Esri, and various other contributors. The base map currently provides coverage
for the world down to a scale of ~1:577k, and coverage down to 1:72k in US coastal areas, and various other areas. Coverage
down to ~ 1:9k is available limited areas based on regional hydrographic survey data. The base map was designed and developed
by Esri. NOTE: Data from the GEBCO_08 grid shall not to be used for navigation or for any other purpose relating to safety
at sea. The GEBCO_08 Grid is largely based on a database of ship-track soundings with interpolation between soundings guided
by satellite-derived gravity data. In some areas, data from existing grids are included. The GEBCO_08 Grid does not contain
detailed information in shallower water areas, information concerning the generation of the grid can be found on GEBCO's web
site: GEBCO. The GEBCO_08 Grid is accompanied by a Source Identifier (SID) Grid which indicates which cells in the GEBCO_08
Grid are based on soundings or existing grids and which have been interpolated. The latest version of both grids and accompanying
documentation is available to download, on behalf of GEBCO, from the British Oceanographic Data Centre (BODC) BODC. The names
of the IHO (International Hydrographic Organization), IOC (intergovernmental Oceanographic Commission), GEBCO (General Bathymetric
Chart of the Oceans), NERC (Natural Environment Research Council) or BODC (British Oceanographic Data Centre) may not be used
in any way to imply, directly or otherwise, endorsement or support of either the Licensee or their mapping system. For more
information on this map, including the terms of use, visit us <a href="http://goto.arcgisonline.com/maps/Ocean/World_Ocean_Base
" target="_new" >online</a>.; abstract: bathymetry, marine water body names, undersea feature namesWorld_Ocean_Base
notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-05-31T16:46:00-07:00