Survey Identifier: V3008


Format Acronym: MGD77
Data Center File Number: 01030167
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): J.COCHRAN
Project: CRUISE V30, LEG 08
Funding: WSF GA27281, GA35463
Survey Departure Date (yyyymmdd): 19730526
Port of Departure: PONTA DELGADA, AZORES
Survey Arrival Date (yyyymmdd): 19730619
Port of Arrival: ST. JOHNS, NEWFOUNDLAND
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 PROTON-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-IW-AIRGUN,EEL,DRUM RECORDER
Formats of Seismic Data: TWO,2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +60
Bottommost Latitude: +37
Leftmost Longitude: -053
Rightmost Longitude: -025
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 TWO PTS
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
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: 7976

Min/Max Data Record:
Date: 1973 05 26
Latitude: +37.69830
Longitude: -52.67330
Bathymetry, 2- Way Traveltime: 001450
Bathymetry, Corrected Depth: 109.0
Magnetics Total Field, 1st Sensor: 440510
Magnetics Residual Field: -11670
Free-Air Anomaly: -0333

Min/Max Data Record:
Date: 1973 06 19
Latitude: +59.03670
Longitude: -25.64330
Bathymetry, 2- Way Traveltime: 060825
Bathymetry, Corrected Depth: 4581.0
Magnetics Total Field, 1st Sensor: 555550
Magnetics Residual Field: +11360
Free-Air Anomaly: +1273