Survey Identifier: A2093L19


Format Acronym: MGD77
Data Center File Number: 02020084
Parameters Surveyed Code: 55513
File Creation Date (yyyymmdd): 1982 6 1
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.DAVID ROSS
Project: CRUISE 93,LEG 19
Funding: NSF,ONR
Survey Departure Date (yyyymmdd): 19770329
Port of Departure: DJIBOUTI,REPUBLIC OF DJIBOUTI
Survey Arrival Date (yyyymmdd): 19770414
Port of Arrival: PORT TEWFIC, EGYPT
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: 600 CU.IN.AIRGUN 5-80HZ,6-CHANNELS
Formats of Seismic Data: DIGITAL,ANALOG,2-CHANNEL SHEET RECORD
Topmost Latitude of Survey: +30
Bottommost Latitude: +11
Leftmost Longitude: +032
Rightmost Longitude: +044
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=+.38MGAL/DAY BIAS=+234.2
Number of Data Records: 13523

Min/Max Data Record:
Date: 1977 03 29
Latitude: +11.61219
Longitude: +32.54220
Bathymetry, 2- Way Traveltime: 000150
Bathymetry, Corrected Depth: 11.0
Magnetics Total Field, 1st Sensor: 374800
Magnetics Residual Field: -13660
Observed Gravity: 9781660
Free-Air Anomaly: -2013

Min/Max Data Record:
Date: 1977 04 14
Latitude: +29.76068
Longitude: +43.50100
Bathymetry, 2- Way Traveltime: 036950
Bathymetry, Corrected Depth: 2878.0
Magnetics Total Field, 1st Sensor: 427800
Magnetics Residual Field: +07320
Observed Gravity: 9792647
Free-Air Anomaly: +2767