Survey Identifier: V2105


Format Acronym: MGD77
Data Center File Number: 01030067
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: U.S.A.
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): C. WINDISCH
Project: CRUISE 21, LEG 5
Survey Departure Date (yyyymmdd): 19650414
Port of Departure: PAPEETE, TAHITI
Survey Arrival Date (yyyymmdd): 19650501
Port of Arrival: HONOLULU, HAWAII
Navigation Instrumentation: SEXTANT
Geodetic Datum/Position: DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD. DOC./18)
Magnetics Instrumentation: L-DGO MFG PROTON PRECESSION
Gravity Instrumentation: GRAF-ASKANIA GSS2-12
Seismic Instrumentation: L-DGO 25CU.IN.AIRGUN, EEL,DRUM RECORDER
Formats of Seismic Data: TWO, 2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +22
Bottommost Latitude: -18
Leftmost Longitude: -173
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.
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: 06 - 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 2032

Min/Max Data Record:
Date: 1965 04 14
Latitude: -17.38330
Longitude: -172.99570
Bathymetry, 2- Way Traveltime: 004875
Bathymetry, Corrected Depth: 370.0
Magnetics Total Field, 1st Sensor: 329810
Magnetics Residual Field: -12780
Free-Air Anomaly: -0755

Min/Max Data Record:
Date: 1965 05 01
Latitude: +21.26670
Longitude: -149.70000
Bathymetry, 2- Way Traveltime: 082750
Bathymetry, Corrected Depth: 6268.0
Magnetics Total Field, 1st Sensor: 377310
Magnetics Residual Field: +08180
Free-Air Anomaly: +1862