Survey Identifier: JARE33L1
Format Acronym: MGD77
Data Center File Number: JA010026
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): 19911114
Survey Arrival Date (yyyymmdd): 19911128
Navigation Instrumentation: NNSS SATELLITE
Geodetic Datum/Position: WGS-72
Bathymetry Instrumentation: NEC 12KHZ MODEL NS-74 PDR
Gravity Instrumentation: NIPRORI-II
Topmost Latitude of Survey: +36
Bottommost Latitude: -33
Leftmost Longitude: +112
Rightmost Longitude: +140
General Digitizing Rate of Bathymetry: 014
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: 20555
Min/Max Data Record:
Date: 1991 11 14
Latitude: -32.06048
Longitude: +112.01799
Bathymetry, 2- Way Traveltime: 000373
Bathymetry, Corrected Depth: 28.0
Observed Gravity: 9777964
Free-Air Anomaly: -2955
Min/Max Data Record:
Date: 1991 11 28
Latitude: +35.64642
Longitude: +139.87798
Bathymetry, 2- Way Traveltime: 092907
Bathymetry, Corrected Depth: 7067.0
Observed Gravity: 9798053
Free-Air Anomaly: +1298