Survey Identifier: IG2406
Format Acronym: MGD77
Data Center File Number: 10020015
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): T. SHIPLEY
Project: SURVEYS OF THE MIDDLE AMERICA TRENCH-MEXICO AREA-DSDP
Funding: IDOE/IPOD-NSF
Survey Departure Date (yyyymmdd): 19770619
Port of Departure: ACAPULCO MEXICO
Survey Arrival Date (yyyymmdd): 19770715
Port of Arrival: PUNTA ARENAS COSTA RICA
Navigation Instrumentation: SATELLITE, DEAD RECKONING
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: 24CHAN-2293M 3-4 1500 CI AIR GUNS
Formats of Seismic Data: MYLAR, PAPER, NEGATIVE
Topmost Latitude of Survey: +17
Bottommost Latitude: +09
Leftmost Longitude: -100
Rightmost Longitude: -085
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: OM-1N,1W,6W,7N; MG-1A THRU 1I; GCR-1A THRU 1J
Number of Data Records: 7388
Min/Max Data Record:
Date: 1977 06 19
Latitude: +9.53090
Longitude: -99.36800
Bathymetry, Corrected Depth: 77.0
Magnetics Total Field, 1st Sensor: 374640
Magnetics Residual Field: +03600
Seismic Shot-Point Number: 010002
Min/Max Data Record:
Date: 1977 07 15
Latitude: +16.51260
Longitude: -85.13840
Bathymetry, Corrected Depth: 6748.0
Magnetics Total Field, 1st Sensor: 414620
Magnetics Residual Field: +10760
Seismic Shot-Point Number: 016632