Survey Identifier: MN766
Format Acronym: MGD77
Data Center File Number: 71030001
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19800605
Source Institution: NATIONAL RESEARCH INSTITUTE OCEANOLOGY
Country: SOUTH AFRICA
Platform Name: MEIRING NAUDE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): E S W SIMPSON
Project: CRUISE 76/6
Funding: NRIO
Survey Departure Date (yyyymmdd): 19760322
Port of Departure: DURBAN SOUTH AFRICA
Survey Arrival Date (yyyymmdd): 19760403
Port of Arrival: DURBAN SOUTH AFRICA
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: SATELLITE AND DEADRECKONING
Bathymetry Instrumentation: SIMRAD ECHOSOUNDER 12KH2 ALDEN RECORDER
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: PROTON PRECESSION-MAG-VARIAN
Additional Forms of Magnetics Data: ANALOG RECORDS
Seismic Instrumentation: 40COIN AIRGUN,STREAMER,EPC RECORDER
Formats of Seismic Data: SINGLE-CHANNEL ANALOG RECORD,NEGATIVES
Topmost Latitude of Survey: -21
Bottommost Latitude: -34
Leftmost Longitude: +031
Rightmost Longitude: +041
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: TWO SECOND
Assumed Sound Velocity: 1500
Bathymetric Datum Code: 00
Interpolation Scheme: 5-MINUTE INTERVALS AND PEAKS AND TROUGHS
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Magnetic Sensor Tow Distance: 0070
Reference Field Code: 04
Reference Field: IGRF-75
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAVIGATION POINTS
Number of Data Records: 3506
Min/Max Data Record:
Date: 1976 03 22
Latitude: -33.47140
Longitude: +31.19170
Bathymetry, 2- Way Traveltime: 000950
Bathymetry, Corrected Depth: 71.0
Magnetics Total Field, 1st Sensor: 295320
Magnetics Residual Field: -08250
Min/Max Data Record:
Date: 1976 04 03
Latitude: -21.19670
Longitude: +40.71000
Bathymetry, 2- Way Traveltime: 070450
Bathymetry, Corrected Depth: 5323.0
Magnetics Total Field, 1st Sensor: 322870
Magnetics Residual Field: +04050