Survey Identifier: IG2408
Format Acronym: MGD77
Data Center File Number: 10020021
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): D. HOUSTON
Project: SURVEYS OF THE MIDDLE AMERICA TRENCH-DSDP
Funding: IDOE/IPOD-NSF
Survey Departure Date (yyyymmdd): 19770802
Port of Departure: COLON PANAMA
Survey Arrival Date (yyyymmdd): 19770818
Port of Arrival: SANTO DOMINGO DOMINICAN REPUB.
Navigation Instrumentation: SATELLITE, DEAD RECKONING
Geodetic Datum/Position: SATELLITE, DEAD RECKONING
Bathymetry Instrumentation: 3.5 & 12 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
Formats of Seismic Data: MYLAR, PAPER, NEGATIVE
Topmost Latitude of Survey: +19
Bottommost Latitude: +09
Leftmost Longitude: -082
Rightmost Longitude: -068
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: NR-1A THRU 1C; SD-1A THRU 9C
Number of Data Records: 4133
Min/Max Data Record:
Date: 1977 08 02
Latitude: +9.11920
Longitude: -81.77950
Bathymetry, Corrected Depth: 18.0
Magnetics Total Field, 1st Sensor: 372220
Magnetics Residual Field: -04810
Min/Max Data Record:
Date: 1977 08 18
Latitude: +18.47350
Longitude: -68.78270
Bathymetry, Corrected Depth: 4458.0
Magnetics Total Field, 1st Sensor: 425660
Magnetics Residual Field: +10800