Survey Identifier: A2096L04
Format Acronym: MGD77
Data Center File Number: 02020096
Parameters Surveyed Code: 55513
File Creation Date (yyyymmdd): 1982 716
Source Institution: WOODS HOLE OCEANOGRAPHIC INSTITUTION
Country: U.S.A.
Platform Name: ATLANTIS II
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DR.MICHAEL PURDY
Project: CRUISE 96, LEG 4
Funding: 04
Survey Departure Date (yyyymmdd): 19771205
Survey Arrival Date (yyyymmdd): 19771213
Navigation Instrumentation: 706 SATELLITE RECEIVER
Geodetic Datum/Position: SAT.MERGED WITH SHIP VELOCITY
Bathymetry Instrumentation: PRIM-3.5,SEC-12, WIDE BEAM 1 SEC.SWEEP
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: VARIAN PROTON-PRECESSION MAG.V-85
Additional Forms of Magnetics Data: ANALOG RECORDS, PUNCHED TAPE
Gravity Instrumentation: ARPA-1 VIBRATING STRING ACCELEROMETER
Additional Forms of Gravity Data: ANALOG RECORDS, PUNCHED TAPE
Seismic Instrumentation: 40 + 80 CU.IN.AIRGUNS,SINGLE CHANNEL
Formats of Seismic Data: X-Y RECORDER RECORDS
Topmost Latitude of Survey: +42
Bottommost Latitude: +32
Leftmost Longitude: -071
Rightmost Longitude: -064
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: ONE/SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: 5-MINUTES AND BREAK SLOPE
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 03
Magnetic Sensor Tow Distance: 250
Reference Field Code: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: LINER INTERPOLATION WITHIN DEGREE SQUARE
General Digitizing Rate of Gravity: 050
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IGA SYSTEM 1967
Reference System Code: 3
Reference System: IGSN 71
Corrections Applied: DRIFT=-.60MGAL/DAY BIAS=-16.1
Departure Base Station Gravity: 9798091
Departure Base Station Description: WHOI BASE STATION 920
Arrival Base Station Gravity: 9803123
Arrival Base Station Description: WHOI BASE STATION 604
Number of Data Records: 3849
Min/Max Data Record:
Date: 1977 12 05
Latitude: +32.08189
Longitude: -70.90660
Bathymetry, 2- Way Traveltime: 000175
Bathymetry, Corrected Depth: 13.0
Magnetics Total Field, 1st Sensor: 495160
Magnetics Residual Field: -09930
Observed Gravity: 9794615
Free-Air Anomaly: -0509
Min/Max Data Record:
Date: 1977 12 13
Latitude: +41.52350
Longitude: -64.52700
Bathymetry, 2- Way Traveltime: 070950
Bathymetry, Corrected Depth: 5381.0
Magnetics Total Field, 1st Sensor: 555150
Magnetics Residual Field: +01310
Observed Gravity: 9803065
Free-Air Anomaly: +3043