Survey Identifier: V3307
Format Acronym: MGD77
Data Center File Number: 01030203
Parameters Surveyed Code: 51533
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: U.S.A.
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): J.G. SCHILLING (URI)
Project: CRUISE 33, LEG 07
Funding: NSF, # OCE 7601577
Survey Departure Date (yyyymmdd): 19760516
Port of Departure: DJOBOUTI, T.F.A.I
Survey Arrival Date (yyyymmdd): 19760612
Port of Arrival: COLOMBO, CEYLON
Navigation Instrumentation: SATELLITE/SEXTANT
Geodetic Datum/Position: SATELLITE / DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD. DOC./ 18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Gravity Instrumentation: GRAFT-ASKANIA GSS2-12
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: +15
Bottommost Latitude: +04
Leftmost Longitude: +042
Rightmost Longitude: +080
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 - 3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 6321
Min/Max Data Record:
Date: 1976 05 16
Latitude: +4.78260
Longitude: +42.87310
Bathymetry, 2- Way Traveltime: 000375
Bathymetry, Corrected Depth: 28.0
Free-Air Anomaly: -0974
Min/Max Data Record:
Date: 1976 06 12
Latitude: +14.86350
Longitude: +79.69000
Bathymetry, 2- Way Traveltime: 061250
Bathymetry, Corrected Depth: 4621.0
Free-Air Anomaly: +1157