Survey Identifier: FDRK04MV
Format Acronym: MGD77
Data Center File Number: 15020032
Parameters Surveyed Code: 55111
File Creation Date (yyyymmdd): 19791030
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V MELVILLE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): KEITH W.
Project: F.DRAKE LEG 4
Survey Departure Date (yyyymmdd): 19750514
Port of Departure: BALBOA
Survey Arrival Date (yyyymmdd): 19750521
Port of Arrival: MANZANILLO,MEX.
Navigation Instrumentation: SATNAV,AUTOLOG GYRO + EMLOG
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
Topmost Latitude of Survey: +20
Bottommost Latitude: +07
Leftmost Longitude: -105
Rightmost Longitude: -082
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.POINTS WITHIN ONE DEGREE SQUARE
Number of Data Records: 1648
Min/Max Data Record:
Date: 1975 05 15
Latitude: +7.57710
Longitude: -104.37770
Bathymetry, 2- Way Traveltime: 026626
Bathymetry, Corrected Depth: 1985.0
Magnetics Total Field, 1st Sensor: 366060
Magnetics Residual Field: -03990
Min/Max Data Record:
Date: 1975 05 21
Latitude: +19.05780
Longitude: -82.51950
Bathymetry, 2- Way Traveltime: 070892
Bathymetry, Corrected Depth: 5346.0
Magnetics Total Field, 1st Sensor: 422790
Magnetics Residual Field: +04630