Survey Identifier: V1814
Format Acronym: MGD77
Data Center File Number: 01030031
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19890630
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: U.S.A.
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): B. HEEZEN
Project: CRUISE 18, LEG 14
Survey Departure Date (yyyymmdd): 19620827
Port of Departure: PAGO PAGO, SAMOA
Survey Arrival Date (yyyymmdd): 19620916
Port of Arrival: PAPEETE, TAHITI
Navigation Instrumentation: SEXTANT
Geodetic Datum/Position: DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD. DOC./18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO MFG. PROTON-PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU.IN.AIRGUN, EEL,DRUM RECORDER
Formats of Seismic Data: TWO, 2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: -11
Bottommost Latitude: -18
Leftmost Longitude: -171
Rightmost Longitude: -149
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 060
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAV. PTS.
Additional Documentation: 06 - 12 KHZ, WIDE BEAM (60 DEG),1 SECOND SWEEP
Number of Data Records: 2862
Min/Max Data Record:
Date: 1962 08 27
Latitude: -17.95860
Longitude: -170.64170
Bathymetry, 2- Way Traveltime: 000250
Bathymetry, Corrected Depth: 19.0
Magnetics Total Field, 1st Sensor: 362270
Magnetics Residual Field: -09550
Min/Max Data Record:
Date: 1962 09 16
Latitude: -11.30000
Longitude: -149.53520
Bathymetry, 2- Way Traveltime: 074700
Bathymetry, Corrected Depth: 5642.0
Magnetics Total Field, 1st Sensor: 395340
Magnetics Residual Field: +06110