Survey Identifier: RAMA12WT
Format Acronym: MGD77
Data Center File Number: 15040119
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19820916
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V THOMAS WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): SILVER E.
Project: RAMA LEG 12 <OCE-80-24472>
Survey Departure Date (yyyymmdd): 19810330
Port of Departure: CEBU,PHILIPPINES
Survey Arrival Date (yyyymmdd): 19810505
Port of Arrival: AGANA,GUAM
Navigation Instrumentation: SATNAV,AUTO LOG GYRO+2D DOPPLER SPD LOG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: 3.5-12KHZ/WIDE(60DEG)BEAM
Additional Forms of Bathymetric Data: ANAL.RECORDS,CARDS,35MMFILM(3.5KHZ)
Magnetics Instrumentation: VARIAN MFD PROTON PRECESSION MOD 4970
Additional Forms of Magnetics Data: ANAL.RECORDS,CARDS
Gravity Instrumentation: ASKANIA GSS2,ANSCHUTZ ELECT. GYRO TABLE
Additional Forms of Gravity Data: ANALOGUE RECORDS
Seismic Instrumentation: 20TO300CU.IN.AIRGUN,DIGITAL 1 CHANNEL
Formats of Seismic Data: ANAL.REC,35MM FILM,DIGITAL MAG. TAPE
Topmost Latitude of Survey: +14
Bottommost Latitude: -13
Leftmost Longitude: +114
Rightmost Longitude: +145
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 2SECONDSWEEP
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: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: LIN. INTERP.POINTS WITHIN ONE DEGREE SQUARE
General Digitizing Rate of Gravity: 51
Number of Data Records: 10433
Min/Max Data Record:
Date: 1981 03 30
Latitude: -12.84491
Longitude: +114.78559
Bathymetry, 2- Way Traveltime: 000500
Bathymetry, Corrected Depth: 38.0
Magnetics Total Field, 1st Sensor: 362110
Magnetics Residual Field: -05450
Free-Air Anomaly: -3407
Min/Max Data Record:
Date: 1981 05 05
Latitude: +13.44390
Longitude: +144.66650
Bathymetry, 2- Way Traveltime: 139300
Bathymetry, Corrected Depth: 10820.0
Magnetics Total Field, 1st Sensor: 474930
Magnetics Residual Field: +07600
Free-Air Anomaly: +2576