Abstract:
The "Digital Bathymetric Data Base 5 minute" (DBDB5) was assembled by the US
Naval Oceanographic Office in the early 1980's from computer interpolation of
existing contour maps of ocean basins. It is included in ETOPO2 to fill in a
few areas in the Antarctic that are too for south to be covered by the
satellite-based bathymetry. Along with several land data bases, DBDB5 was
incorporated into a full worldwide 5 minute elevation grid, called ETOPO5.
For more information about the ETOPO5 5-minute gridded elevation data see
http://www.ngdc.noaa.gov/mgg/global/etopo5.HTML. The ETOPO5 data set is
superseded by the ETOPO2 2-minute data set (see
http://www.ngdc.noaa.gov/mgg/fliers/01mgg04.html )