Survey Identifier: IG1505
Format Acronym: MGD77
Data Center File Number: 10020028
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19880609
Source Institution: UT INSTITUTE FOR GEOPHYSICS
Country: U.S.A.
Platform Name: R/V IDA GREEN
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): J. WATKINS
Project: CDP SEIS. REFLECTION OF L. ANTILLES AND VIRGIN IS.+ANTIGUA
Funding: RAMBIN EXPLORATION
Survey Departure Date (yyyymmdd): 19750724
Port of Departure: BARBADOS
Survey Arrival Date (yyyymmdd): 19750821
Port of Arrival: ST. THOMAS VIRGIN ISLANDS
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: SATELLITE, DEAD RECKONING
Bathymetry Instrumentation: 3.5 KHZ ECHOSOUNDER
Additional Forms of Bathymetric Data: ANALOG RECORDS, MICROFILM
Magnetics Instrumentation: PROTON PRECESSION MAGNETOMETER
Additional Forms of Magnetics Data: ANALOG CHART RECORD, 35MM MICROFILM
Seismic Instrumentation: DFS 10000 24 CHAN. 4 MAGNETIC AIR GUNS
Formats of Seismic Data: MYLAR, PAPER,NEGATIVE
Topmost Latitude of Survey: +27
Bottommost Latitude: +13
Leftmost Longitude: -081
Rightmost Longitude: -057
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1,1/SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 050
Magnetic Sensor Tow Distance: 250.
Reference Field Code: 04
Reference Field: IGRF 75
Additional Documentation: MULTICHANNEL SEISMIC LINES ACQUIRED: LA-3 THRU 21B
Number of Data Records: 5710
Min/Max Data Record:
Date: 1975 07 24
Latitude: +13.33660
Longitude: -80.13710
Bathymetry, Corrected Depth: 20.0
Magnetics Total Field, 1st Sensor: 378450
Magnetics Residual Field: -20000
Min/Max Data Record:
Date: 1975 08 21
Latitude: +26.12520
Longitude: -57.54900
Bathymetry, Corrected Depth: 7670.0
Magnetics Total Field, 1st Sensor: 455730
Magnetics Residual Field: +03350