Survey Identifier: A2067L07
Format Acronym: MGD77
Data Center File Number: 02020046
Parameters Surveyed Code: 55511
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. K. O. EMERY
Project: CRUISE 67, LEG 7
Funding: NSF
Survey Departure Date (yyyymmdd): 19720604
Port of Departure: LUANDA, ANGOLA
Survey Arrival Date (yyyymmdd): 19720701
Port of Arrival: LUANDA, ANGOLA
Navigation Instrumentation: SATELLITE, DR
Geodetic Datum/Position: SAT. MERGED WITH SHIP VELOCITY
Bathymetry Instrumentation: PGR 3.5KHZ WIDE BEAM
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: 300,40 CU.IN.AIR GUN, SINGLE CHANNEL
Formats of Seismic Data: ANALOG RECORDS, X-Y SHEETS
Topmost Latitude of Survey: +09
Bottommost Latitude: -24
Leftmost Longitude: -017
Rightmost Longitude: +014
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=-.268MGAL/DAY BIAS=-11.2
Departure Base Station Gravity: 9782089
Departure Base Station Description: WHOI STATION 836
Arrival Base Station Gravity: 9782089
Arrival Base Station Description: WHOI BASE STATION 839
Number of Data Records: 12768
Min/Max Data Record:
Date: 1972 06 04
Latitude: -23.28200
Longitude: -16.85200
Bathymetry, 2- Way Traveltime: 000175
Bathymetry, Corrected Depth: 13.0
Magnetics Total Field, 1st Sensor: 269910
Magnetics Residual Field: -09550
Free-Air Anomaly: -0592
Min/Max Data Record:
Date: 1974 02 06
Latitude: +8.20300
Longitude: +13.28300
Bathymetry, 2- Way Traveltime: 076500
Bathymetry, Corrected Depth: 5790.0
Magnetics Total Field, 1st Sensor: 328160
Magnetics Residual Field: +08340
Free-Air Anomaly: +2138