Survey Identifier: SHACK376
Format Acronym: MGD77
Data Center File Number: 19050004
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19831202
Source Institution: INSTITUTE OF OCEANOGRAPHIC SCIENCES
Country: UNITED KINGDOM
Platform Name: SHACKLETON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): R.B.WHITMARSH, D.H.MATTHEWS
Project: SHACKLETON CRUISE 3/76
Funding: BRITISH GOVERNMENT
Survey Departure Date (yyyymmdd): 19760619
Port of Departure: PONTA DELGADA, AZORES
Survey Arrival Date (yyyymmdd): 19760622
Port of Arrival: BARRY, WALES
Navigation Instrumentation: MAGNAVOX SATELLITE RECEIVER
Geodetic Datum/Position: SAT PLUS DR
Bathymetry Instrumentation: IOS PES MARK 3 10KHZ 20DEG 2SEC SWEEP
Additional Forms of Bathymetric Data: ANALOGUE
Magnetics Instrumentation: PROTON PRECESION VARIAN TYPE 4937
Additional Forms of Magnetics Data: ANALOGUE
Gravity Instrumentation: LACOSTE-ROMBERG S40
Additional Forms of Gravity Data: ANALOGUE
Topmost Latitude of Survey: +43
Bottommost Latitude: +39
Leftmost Longitude: -031
Rightmost Longitude: -027
General Digitizing Rate of Bathymetry: 020
General Sampling Rate of Bathymetry: 2 SEC
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: 2 MINUTE LINEAR INTERPOLATION FROM 6 MIN SAMPLES
General Digitizing Rate of Magnetics: 020
General Sampling Rate of Magnetics: 02
Magnetic Sensor Tow Distance: 0500
Reference Field Code: 04
Reference Field: IGRF 75
Method of Applying Residual Field: LIN. INTERP 1X1 DEG SQUARE
General Digitizing Rate of Gravity: 020
General Sampling Rate of Gravity: 1
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Reference System Code: 2
Reference System: POTSDAM
Corrections Applied: DRIFT + EOTVOS
Departure Base Station Gravity: 9801258
Departure Base Station Description: PONTA DELGADA IGB11175
Arrival Base Station Gravity: 9812052
Arrival Base Station Description: BARRY,WALES
Number of Data Records: 2396
Min/Max Data Record:
Date: 1976 06 19
Latitude: +39.15030
Longitude: -30.55940
Bathymetry, Corrected Depth: 1048.0
Magnetics Total Field, 1st Sensor: 449610
Magnetics Residual Field: -08480
Free-Air Anomaly: +0090
Min/Max Data Record:
Date: 1976 06 22
Latitude: +42.88610
Longitude: -27.49700
Bathymetry, Corrected Depth: 2822.0
Magnetics Total Field, 1st Sensor: 470120
Magnetics Residual Field: +07580
Free-Air Anomaly: +9000