Survey Identifier: V1801
Format Acronym: MGD77
Data Center File Number: 01030018
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): J. EWING
Project: CRUISE 18, LEG 1
Survey Departure Date (yyyymmdd): 19611201
Port of Departure: PIERMONT, N.Y.
Survey Arrival Date (yyyymmdd): 19611205
Port of Arrival: ST. GEORGES, BERMUDA
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: +41
Bottommost Latitude: +32
Leftmost Longitude: -074
Rightmost Longitude: -064
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: 854
Min/Max Data Record:
Date: 1961 12 01
Latitude: +32.46000
Longitude: -73.87500
Bathymetry, 2- Way Traveltime: 000425
Bathymetry, Corrected Depth: 32.0
Magnetics Total Field, 1st Sensor: 514530
Magnetics Residual Field: -01130
Min/Max Data Record:
Date: 1961 12 05
Latitude: +40.49830
Longitude: -64.54500
Bathymetry, 2- Way Traveltime: 070800
Bathymetry, Corrected Depth: 5369.0
Magnetics Total Field, 1st Sensor: 567050
Magnetics Residual Field: +04140