Survey Identifier: IGUA03EB
Format Acronym: MGD77
Data Center File Number: 15030008
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19801001
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V ELLEN B. SCRIPPS
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): SHOR G.
Project: IGUANA LEG 3
Survey Departure Date (yyyymmdd): 19720421
Port of Departure: GUAYQUIL,ECUADOR
Survey Arrival Date (yyyymmdd): 19720430
Port of Arrival: PUNTA ARENAS,COSTA RICA
Navigation Instrumentation: SATNAV,MANUAL ENTRY GYRO AND SPD CHANGES
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 12KHZ/GIFFT RECORDER/WIDE(60DEG)BEAM
Additional Forms of Bathymetric Data: ANALOGUE RECORDS,PUNCHED CARDS
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS
Seismic Instrumentation: 40CU.IN.AIRGUN,10-300HZ,PDR MK 10 REC.
Formats of Seismic Data: ANAL.RECORDS,35MM MICROFILM
Topmost Latitude of Survey: +10
Bottommost Latitude: -03
Leftmost Longitude: -086
Rightmost Longitude: -080
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1SECONDSWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: 5 MINUTE INTERVAL
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LIN.INTERP.AT 30DEG C/C OR 500MI ALONG TRACK
Number of Data Records: 1828
Min/Max Data Record:
Date: 1972 04 21
Latitude: -2.70660
Longitude: -85.02660
Bathymetry, 2- Way Traveltime: 000100
Bathymetry, Corrected Depth: 7.0
Magnetics Total Field, 1st Sensor: 312300
Magnetics Residual Field: -05700
Min/Max Data Record:
Date: 1972 04 30
Latitude: +9.94800
Longitude: -80.31660
Bathymetry, 2- Way Traveltime: 050474
Bathymetry, Corrected Depth: 3779.0
Magnetics Total Field, 1st Sensor: 382600
Magnetics Residual Field: +02400