Survey Identifier: IG2404
Format Acronym: MGD77
Data Center File Number: 10020018
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. LADD
Project: SURVEYS OF THE MIDDLE AMERICA TRENCH-GUATEMALA SURVEY-DSDP
Funding: IDOE/IPOD-NSF
Survey Departure Date (yyyymmdd): 19770423
Port of Departure: ACAJUTLA EL SALVADOR
Survey Arrival Date (yyyymmdd): 19770523
Port of Arrival: ACAJUTLA EL SALVADOR
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: +14
Bottommost Latitude: +09
Leftmost Longitude: -093
Rightmost Longitude: -084
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: GUA-2 THRU 16
Number of Data Records: 6348
Min/Max Data Record:
Date: 1977 04 24
Latitude: +9.30970
Longitude: -92.23390
Bathymetry, Corrected Depth: 19.0
Magnetics Total Field, 1st Sensor: 389900
Magnetics Residual Field: -00370
Min/Max Data Record:
Date: 1977 05 23
Latitude: +13.85680
Longitude: -84.78140
Bathymetry, Corrected Depth: 6331.0
Magnetics Total Field, 1st Sensor: 404360
Magnetics Residual Field: +09800