Survey Identifier: JARE32L7
Format Acronym: MGD77
Data Center File Number: JA010025
Parameters Surveyed Code: 50500
File Creation Date (yyyymmdd): 19941107
Source Institution: NATIONAL INSTITUTE OF POLAR RESEARCH
Country: JAPAN
Platform Name: SHIRASE
Platform Type Code: 1
Platform Type: SHIP
Project: JAPANESE ANTARCTIC RESEARCH EXPEDITION, JARE
Survey Departure Date (yyyymmdd): 19910327
Survey Arrival Date (yyyymmdd): 19910412
Navigation Instrumentation: NNSS (OPN-73-3)
Geodetic Datum/Position: WGS-72
Bathymetry Instrumentation: NEC CO. LTD. PDR
Gravity Instrumentation: NIPRORI-II
Topmost Latitude of Survey: +36
Bottommost Latitude: -34
Leftmost Longitude: +139
Rightmost Longitude: +156
General Digitizing Rate of Bathymetry: 012
Assumed Sound Velocity: 15000
General Digitizing Rate of Gravity: 011
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: 1967
Reference System Code: 3
Reference System: IGSN-71
Departure Base Station Gravity: 9825238
Departure Base Station Description: SYOWA LAT=69 0.3'S, LON=39 35.3'E
Number of Data Records: 22812
Min/Max Data Record:
Date: 1991 03 27
Latitude: -33.83191
Longitude: +139.69721
Bathymetry, 2- Way Traveltime: 002347
Bathymetry, Corrected Depth: 176.0
Observed Gravity: 9778024
Free-Air Anomaly: -2904
Min/Max Data Record:
Date: 1991 04 12
Latitude: +35.64514
Longitude: +155.52392
Bathymetry, 2- Way Traveltime: 086680
Bathymetry, Corrected Depth: 6579.0
Observed Gravity: 9798149
Free-Air Anomaly: +1838