Survey Identifier: GH7903
Format Acronym: MGD77
Data Center File Number: J2010014
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): 19790528
Survey Arrival Date (yyyymmdd): 19790706
Topmost Latitude of Survey: +36
Bottommost Latitude: +25
Leftmost Longitude: +137
Rightmost Longitude: +146
General Digitizing Rate of Bathymetry: 55
General Digitizing Rate of Magnetics: 63
General Digitizing Rate of Gravity: 53
Additional Documentation: OLD NGDC:56010014
Number of Data Records: 10553
Min/Max Data Record:
Date: 1979 05 28
Latitude: +0.00258
Longitude: -18.23514
Bathymetry, 2- Way Traveltime: 000360
Bathymetry, Corrected Depth: 27.0
Magnetics Total Field, 1st Sensor: 389770
Magnetics Residual Field: -15160
Observed Gravity: 9780493
Free-Air Anomaly: -8389
Min/Max Data Record:
Date: 1979 07 06
Latitude: +35.68034
Longitude: +171.19003
Bathymetry, 2- Way Traveltime: 128747
Bathymetry, Corrected Depth: 9952.0
Magnetics Total Field, 1st Sensor: 565420
Magnetics Residual Field: +77020
Observed Gravity: 9798475
Free-Air Anomaly: +4050