Survey Identifier: V3207


Format Acronym: MGD77
Data Center File Number: 01030188
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): PHILIP RABINOWITZ
Project: CRUISE 32 LEG 07
Funding: NSF-UC-NSF-C482-2
Survey Departure Date (yyyymmdd): 19750323
Port of Departure: BARBADOS, WEST INDIES
Survey Arrival Date (yyyymmdd): 19750421
Port of Arrival: SAN JUAN, PUERTO RICO
Navigation Instrumentation: SATELLITE/ SEXTANT
Geodetic Datum/Position: SATELLITE/ DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD DOC / 18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO MFG PROTON-PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: GRAF-ASKANIA GSS2-12
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU-IW-AIRGUN,EEL,DRUM RECORDER
Formats of Seismic Data: TWO,2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +27
Bottommost Latitude: +13
Leftmost Longitude: -067
Rightmost Longitude: -048
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 Magnetics: 060
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN TWO PTS
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: 06 -3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP, GA27281, GA3463, GX2867, GA17122
Number of Data Records: 11530

Min/Max Data Record:
Date: 1975 03 23
Latitude: +13.10330
Longitude: -66.14830
Bathymetry, 2- Way Traveltime: 003675
Bathymetry, Corrected Depth: 279.0
Magnetics Total Field, 1st Sensor: 376460
Magnetics Residual Field: -08890
Free-Air Anomaly: -2854

Min/Max Data Record:
Date: 1975 04 21
Latitude: +26.53860
Longitude: -48.96310
Bathymetry, 2- Way Traveltime: 107950
Bathymetry, Corrected Depth: 8292.0
Magnetics Total Field, 1st Sensor: 457000
Magnetics Residual Field: -01110
Free-Air Anomaly: +0687