Survey Identifier: V2912
Format Acronym: MGD77
Data Center File Number: 01030159
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): DR. Y. KRISTOFFERSEN
Project: CRUISE 29, LEG 12
Funding: GA27281, GA35463
Survey Departure Date (yyyymmdd): 19721010
Port of Departure: HALIFAX, NOVA SCOTIA
Survey Arrival Date (yyyymmdd): 19721013
Port of Arrival: PIERMONT, NEW YORK
Navigation Instrumentation: SATELLITE/SEXTANT
Geodetic Datum/Position: SATELLITE / DEAD RECKONING
Bathymetry Instrumentation: (SEE ADD. DOC./ 18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO MFG PROTRON-PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: GRAF-ASKANIA GSS2-12
Additional Forms of Gravity 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: +45
Bottommost Latitude: +39
Leftmost Longitude: -074
Rightmost Longitude: -063
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 - 3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 921
Min/Max Data Record:
Date: 1972 10 10
Latitude: +39.20820
Longitude: -73.90170
Bathymetry, 2- Way Traveltime: 000475
Bathymetry, Corrected Depth: 36.0
Magnetics Total Field, 1st Sensor: 548920
Magnetics Residual Field: -03190
Free-Air Anomaly: -0435
Min/Max Data Record:
Date: 1972 10 13
Latitude: +44.49830
Longitude: -63.39480
Bathymetry, 2- Way Traveltime: 039850
Bathymetry, Corrected Depth: 2975.0
Magnetics Total Field, 1st Sensor: 562300
Magnetics Residual Field: +05180
Free-Air Anomaly: +0478