Survey Identifier: MRTN05WT
Format Acronym: MGD77
Data Center File Number: 15040127
Parameters Surveyed Code: 55131
File Creation Date (yyyymmdd): 19
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: USA
Platform Name: R/V T.WASHINGTON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): COMER R.
Project: MARATHON LEG 5
Funding: NSF OCE83-17741
Survey Departure Date (yyyymmdd): 19840812
Port of Departure: HONOLULU,HAWAII
Survey Arrival Date (yyyymmdd): 19840821
Port of Arrival: PAGO PAGO,SAMOA
Navigation Instrumentation: SATNAV,AUTO LOG GYRO+2D DOPPLER SPD LOG
Geodetic Datum/Position: LINEAR INTERP.BETWEEN ADJACENT FIXES
Bathymetry Instrumentation: SEABEAM VERT.BEAM(2&2/3DEG)&3.5KHZ(WIDE)
Additional Forms of Bathymetric Data: ANAL.REC,35MM FILM,DIGITAL MAG. TAPE
Magnetics Instrumentation: GEOMETRICS MAGNETOMETER MOD G-801/3
Additional Forms of Magnetics Data: ANAL.REC,35MM FILM,DIGITAL MAG. TAPE
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: NONE COLLECTED
Formats of Seismic Data: NONE COLLECTED
Topmost Latitude of Survey: +21
Bottommost Latitude: -15
Leftmost Longitude: -171
Rightmost Longitude: -158
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 1PING IN H20
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: 1 MINUTE AVERAGES EXTRACTED FROM SEABEAM VERTICAL BEAMS
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF 1980
Method of Applying Residual Field: LIN.INTERP.POINTS WITHIN ONE DEGREE SQUARE
Additional Documentation: DEPTHS CORRECTED FOR 5 METER SHIP DRAFT.
Number of Data Records: 13371
Min/Max Data Record:
Date: 1984 08 12
Latitude: -14.33816
Longitude: -170.36905
Bathymetry, 2- Way Traveltime: 008146
Bathymetry, Corrected Depth: 617.0
Magnetics Total Field, 1st Sensor: 325790
Magnetics Residual Field: -08878
Min/Max Data Record:
Date: 1984 08 21
Latitude: +20.39483
Longitude: -158.19067
Bathymetry, 2- Way Traveltime: 077813
Bathymetry, Corrected Depth: 5885.0
Magnetics Total Field, 1st Sensor: 400160
Magnetics Residual Field: +08318