ETOPO1 1 Arc-Minute Global Relief Model

摘要: in august 2008 the national geophysical data center ngdc an office of oceanic and atmospheric administration noaa developed etopo1 global relief model as improvement to etopo2v2 is available ice surface top antarctic greenland sheets bedrock base versions both were generated from diverse regional digital sets which shifted common horizontal vertical datums then evaluated edited needed bathymetric topographic shoreline used obtained database add european sheet modeling initiative eismint scientific committee on research scar japan oceanographic jodc caspian environment programme cep mediterranean science commission ciesm aeronautics space nasa snow nsidc scripps institute oceanography sio leibniz for baltic sea libsr vertically referenced level horizontally world geodetic system 1984 wgs 84 cell size 1 arc minute