Survey Identifier: JARE27L4
Format Acronym: MGD77
Data Center File Number: JA010004
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): 19860321
Survey Arrival Date (yyyymmdd): 19860402
Navigation Instrumentation: NNSS SATELLITE
Geodetic Datum/Position: WGS-72
Bathymetry Instrumentation: NEC CO. LTD. PDR
Gravity Instrumentation: NIPRORI-I
Topmost Latitude of Survey: +07
Bottommost Latitude: -21
Leftmost Longitude: +057
Rightmost Longitude: +105
General Digitizing Rate of Bathymetry: 027
Assumed Sound Velocity: 15000
General Digitizing Rate of Gravity: 020
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: 8807
Min/Max Data Record:
Date: 1986 03 21
Latitude: -20.13951
Longitude: +57.47085
Bathymetry, 2- Way Traveltime: 000280
Bathymetry, Corrected Depth: 21.0
Observed Gravity: 9779315
Free-Air Anomaly: -1389
Min/Max Data Record:
Date: 1986 04 02
Latitude: +6.17025
Longitude: +104.97361
Bathymetry, 2- Way Traveltime: 086267
Bathymetry, Corrected Depth: 6470.0
Observed Gravity: 9788973
Free-Air Anomaly: +2531