Survey Identifier: A2093L20
Format Acronym: MGD77
Data Center File Number: 02020085
Parameters Surveyed Code: 55511
File Creation Date (yyyymmdd): 1982 525
Source Institution: WOODS HOLE OCEANOGRAPHIC INST
Country: U.S.A.
Platform Name: ATLANTIS II
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DE.D.L.ELDER
Project: CRUISE 93,, LEG 20
Funding: LAEA,NSF,ERDA
Survey Departure Date (yyyymmdd): 19770419
Port of Departure: PORT TEWFIC, EGYPT
Survey Arrival Date (yyyymmdd): 19770426
Port of Arrival: VALLETTA,MALTA
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
Topmost Latitude of Survey: +37
Bottommost Latitude: +29
Leftmost Longitude: +014
Rightmost Longitude: +033
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=+.38MGA/DAY BIAS=+234.2
Arrival Base Station Gravity: 9798719
Arrival Base Station Description: WHOI BASE STATION 915
Number of Data Records: 4636
Min/Max Data Record:
Date: 1977 04 19
Latitude: +29.92908
Longitude: +14.50010
Bathymetry, 2- Way Traveltime: 000050
Bathymetry, Corrected Depth: 4.0
Magnetics Total Field, 1st Sensor: 430240
Magnetics Residual Field: -05580
Observed Gravity: 9792907
Free-Air Anomaly: -1548
Min/Max Data Record:
Date: 1977 04 26
Latitude: +36.02254
Longitude: +32.56630
Bathymetry, 2- Way Traveltime: 053000
Bathymetry, Corrected Depth: 4086.0
Magnetics Total Field, 1st Sensor: 440640
Magnetics Residual Field: +03960
Observed Gravity: 9798763
Free-Air Anomaly: +0629