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MGD77 Data (Bathymetry, Geomagnetism, Gravity)

Outline of MGD77 Data (Bathymetry, Geomagnetism, Gravity)

MGD77 data is 1 file per one cruise (navigation). This file is comprised of "header record" recording such as information of observation method, observation equipment, data processing method and "data record" recording observation data such as bathymetry, geomagnetism, gravity.

Data Source Japanese related institutes and US National Geophysical Data Center
Sea Area Whole sea areas centered on the seas around Japan
Period 1949 - 2002
Data Volume 622 Files
Bathymetry 2,133,777 Points
Geomagnetism 4,636,814 Points
Gravity 4,472,594 Points