Survey Identifier: SHA1079


Format Acronym: MGD77
Data Center File Number: 19050009
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19900125
Source Institution: BRITISH OCEANOGRAPHIC DATA CENTRE
Country: UNITED KINGDOM
Platform Name: RRS SHACKLETON
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): TOM SOUTHREN,NEWCASTLE UNIV.
Project: RED SEA CRUISE 10/1979
Survey Departure Date (yyyymmdd): 19791101
Survey Arrival Date (yyyymmdd): 19791121
Navigation Instrumentation: MAGNAVOX SAT
Geodetic Datum/Position: SATELLITE/DEAD RECKONING
Bathymetry Instrumentation: PRECISION ECHO SOUNDER W/FISH
Additional Forms of Bathymetric Data: ANALOG PAPER
Magnetics Instrumentation: VARIAN PROTON PRECESSION
Gravity Instrumentation: LA COSTE-ROMBERG SEA
Topmost Latitude of Survey: +28
Bottommost Latitude: +19
Leftmost Longitude: +033
Rightmost Longitude: +040
General Digitizing Rate of Bathymetry: 020
Interpolation Scheme: 10 MIN, MORE FREQUENTLY WHERE NECESSARY
General Digitizing Rate of Magnetics: 020
Magnetic Sensor Tow Distance: 200
General Digitizing Rate of Gravity: 020
Theoretical Gravity Formula: 1967 FORMULA
Reference System: IGSN79
Corrections Applied: 0.11 MGALS/DAY
Departure Base Station Description: PORT SAID
Arrival Base Station Description: DJIBOUTI
Additional Documentation: MAGNETICS:DIURNAL CORRECTION FROM BASE STATION SET UP AT QUSIR, NO TOTAL FIELD IN FILE, GRAVITY:, g(zero)=978031.8(1+0.0053024 sin**(phi)-0.0000059 sin**(2*phi)), WHERE PHI = LATITUDE
Number of Data Records: 12194

Min/Max Data Record:
Date: 1979 11 01
Latitude: +19.31030
Longitude: +33.96840
Bathymetry, Corrected Depth: 81.0
Magnetics Residual Field: -08951
Free-Air Anomaly: -7758

Min/Max Data Record:
Date: 1979 11 21
Latitude: +27.86550
Longitude: +39.35330
Bathymetry, Corrected Depth: 2790.0
Magnetics Residual Field: +08219
Free-Air Anomaly: +1142