Survey Identifier: GH7802
Format Acronym: MGD77
Data Center File Number: J2010011
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19810911
Source Institution: GEOLOGICAL SURVEY OF JAPAN
Country: JAPAN
Platform Name: HAKUREI-MARU
Platform Type Code: 1
Platform Type: SHIP
Survey Departure Date (yyyymmdd): 19780420
Survey Arrival Date (yyyymmdd): 19780602
Topmost Latitude of Survey: +44
Bottommost Latitude: +34
Leftmost Longitude: +132
Rightmost Longitude: +143
General Digitizing Rate of Bathymetry: 59
General Digitizing Rate of Magnetics: 64
General Digitizing Rate of Gravity: 57
Additional Documentation: OLD NGDC:56010011
Number of Data Records: 10813
Min/Max Data Record:
Date: 1978 04 20
Latitude: +34.82469
Longitude: +132.21991
Bathymetry, 2- Way Traveltime: 000267
Bathymetry, Corrected Depth: 20.0
Magnetics Total Field, 1st Sensor: 429400
Magnetics Residual Field: -58070
Observed Gravity: 9792055
Free-Air Anomaly: -8054
Min/Max Data Record:
Date: 1978 06 02
Latitude: +43.55914
Longitude: +142.19292
Bathymetry, 2- Way Traveltime: 099093
Bathymetry, Corrected Depth: 7432.0
Magnetics Total Field, 1st Sensor: 592670
Magnetics Residual Field: +98690
Observed Gravity: 9805962
Free-Air Anomaly: +3293