Survey Identifier: A2075L05
Format Acronym: MGD77
Data Center File Number: 02020055
Parameters Surveyed Code: 55531
File Creation Date (yyyymmdd): 19800201
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. ELAZAR UCHUPI
Project: CRUISE 75, LEG 5
Funding: NSF
Survey Departure Date (yyyymmdd): 19730505
Port of Departure: DAKAR, SENEGAL
Survey Arrival Date (yyyymmdd): 19730523
Port of Arrival: LAS PALMAS, CANARY ISLANDS
Navigation Instrumentation: SATELLITE, DR
Geodetic Datum/Position: SAT. MERGED WITH SHIP VELOCITY
Bathymetry Instrumentation: PGR 3.5KHZ WIDE BEAM ONE SEC. SWEEP
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: VARIAN PROTON MAGNETOMETER
Additional Forms of Magnetics Data: ANALOG RECORDS, PUNCHED TAPE
Gravity Instrumentation: ARPA VIBRATING STRING ACCELEROMETER
Additional Forms of Gravity Data: ANALOG RECORDS, PUNCHED TAPE
Seismic Instrumentation: SINGLE CHANNEL PRIM.-300CU.IN. GUN
Formats of Seismic Data: X-Y-Z SHEETS, MAG. TAPE
Topmost Latitude of Survey: +29
Bottommost Latitude: +14
Leftmost Longitude: -027
Rightmost Longitude: -015
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: 050
General Sampling Rate of Magnetics: 60
Magnetic Sensor Tow Distance: 250
Reference Field Code: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LINEAR INTERPOLATION WITHIN DEGREE SQUARE
General Digitizing Rate of Gravity: 050
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG 1967
Reference System Code: 2
Reference System: POTSDAM 1930
Corrections Applied: DRIFT=-0.51 BIAS=+54.5MGAL/DAY
Departure Base Station Gravity: 9784813
Departure Base Station Description: WHOI BASE STATION 849
Arrival Base Station Gravity: 9793877
Arrival Base Station Description: WHOI BASE STATION 850
Number of Data Records: 4034
Min/Max Data Record:
Date: 1973 05 05
Latitude: +14.54720
Longitude: -26.46590
Bathymetry, 2- Way Traveltime: 000600
Bathymetry, Corrected Depth: 45.0
Magnetics Total Field, 1st Sensor: 327150
Magnetics Residual Field: -00170
Free-Air Anomaly: -0487
Min/Max Data Record:
Date: 1973 05 23
Latitude: +28.58000
Longitude: -15.34800
Bathymetry, 2- Way Traveltime: 071600
Bathymetry, Corrected Depth: 5427.0
Magnetics Total Field, 1st Sensor: 395720
Magnetics Residual Field: +03990
Free-Air Anomaly: +1858