Survey Identifier: V1708
Format Acronym: MGD77
Data Center File Number: 01030008
Parameters Surveyed Code: 51533
File Creation Date (yyyymmdd): 19890630
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: U.S.A.
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): W. PITMAN
Project: CRUISE 17, LEG 8
Survey Departure Date (yyyymmdd): 19610401
Port of Departure: PUNTA ARENAS, CHILE
Survey Arrival Date (yyyymmdd): 19610405
Port of Arrival: PUNTA ARENA, CHILE
Navigation Instrumentation: SEXTANT
Geodetic Datum/Position: DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD. DOC./ 18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Gravity Instrumentation: GRAF ASKANIA GSS 2-14
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU.IN.AIRGUN,EEL, DRUM RECORDER
Formats of Seismic Data: TWO,2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: -52
Bottommost Latitude: -55
Leftmost Longitude: -071
Rightmost Longitude: -067
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: 06 - 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 1011
Min/Max Data Record:
Date: 1961 04 01
Latitude: -54.03640
Longitude: -70.91170
Bathymetry, 2- Way Traveltime: 000050
Bathymetry, Corrected Depth: 4.0
Free-Air Anomaly: -0573
Min/Max Data Record:
Date: 1961 04 05
Latitude: -52.28000
Longitude: -67.71430
Bathymetry, 2- Way Traveltime: 007875
Bathymetry, Corrected Depth: 582.0
Free-Air Anomaly: +0291