Survey Identifier: IG2402
Format Acronym: MGD77
Data Center File Number: 10020012
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): R.T. BUFFLER
Project: SURVEYS OF THE MIDDLE AMERICA TRENCH-COSTA RICA AREA-DSDP
Funding: IDOE/IPOD-NSF
Survey Departure Date (yyyymmdd): 19770318
Port of Departure: BALBOA PANAMA CANAL ZONE
Survey Arrival Date (yyyymmdd): 19770331
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: 24 CHANNELS 2293M ARRAY 3/4-1500CI AGUNS
Formats of Seismic Data: MYLAR, PAPER, NEGATIVE
Topmost Latitude of Survey: +11
Bottommost Latitude: +06
Leftmost Longitude: -088
Rightmost Longitude: -079
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 CR-1 THRU 7
Number of Data Records: 3312
Min/Max Data Record:
Date: 1977 03 18
Latitude: +6.94140
Longitude: -87.48020
Bathymetry, Corrected Depth: 28.0
Magnetics Total Field, 1st Sensor: 358930
Magnetics Residual Field: +02760
Min/Max Data Record:
Date: 1977 03 31
Latitude: +10.25160
Longitude: -79.46550
Bathymetry, Corrected Depth: 5201.0
Magnetics Total Field, 1st Sensor: 375020
Magnetics Residual Field: +11370