Survey Identifier: GH7602
Format Acronym: MGD77
Data Center File Number: J2010007
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): 19760418
Survey Arrival Date (yyyymmdd): 19760601
Topmost Latitude of Survey: +45
Bottommost Latitude: +34
Leftmost Longitude: +139
Rightmost Longitude: +151
General Digitizing Rate of Bathymetry: 67
General Digitizing Rate of Magnetics: 68
General Digitizing Rate of Gravity: 61
Additional Documentation: OLD NGDC:56010007
Number of Data Records: 10351
Min/Max Data Record:
Date: 1976 04 18
Latitude: +20.17333
Longitude: +139.67167
Bathymetry, 2- Way Traveltime: 000293
Bathymetry, Corrected Depth: 22.0
Magnetics Total Field, 1st Sensor: 439020
Magnetics Residual Field: -16930
Observed Gravity: 9795222
Free-Air Anomaly: -7563
Min/Max Data Record:
Date: 1976 06 01
Latitude: +49.96167
Longitude: +150.26166
Bathymetry, 2- Way Traveltime: 121067
Bathymetry, Corrected Depth: 9297.0
Magnetics Total Field, 1st Sensor: 494940
Magnetics Residual Field: +19360
Observed Gravity: 9814227
Free-Air Anomaly: +7119