Survey Identifier: TD377
Format Acronym: MGD77
Data Center File Number: 71020003
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19800605
Source Institution: UNIVERSITY CAPETOWN OCEANOGRAPHY
Country: SOUTH AFRICA
Platform Name: THOMAS B DAVIE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): E S W SIMPSON
Project: CRUISE 377
Funding: SANCOR/UCT
Survey Departure Date (yyyymmdd): 19780523
Port of Departure: CAPETOWN, SOUTH AFRICA
Survey Arrival Date (yyyymmdd): 19780607
Port of Arrival: CAPETOWN, SOUTH AFRICA
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: SATELLITE AND DEAD RECKONING
Bathymetry Instrumentation: ELAC PDR 12KHZ EPC RECORDER
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: PROTON PRECESSION MAG-VARIN
Additional Forms of Magnetics Data: ANALOG RECORDS
Seismic Instrumentation: 40CU.IN.AIRGUN,STREAMER,EPC RECORDER
Formats of Seismic Data: SINGLE-CHANNEL ANALOG RECORD, NEGATIVE
Topmost Latitude of Survey: -30
Bottommost Latitude: -34
Leftmost Longitude: -001
Rightmost Longitude: +019
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: TWO SECOND
Assumed Sound Velocity: 15000
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: 3168
Min/Max Data Record:
Date: 1978 05 23
Latitude: -33.85170
Longitude: -0.71670
Bathymetry, 2- Way Traveltime: 000775
Bathymetry, Corrected Depth: 58.0
Magnetics Total Field, 1st Sensor: 269890
Magnetics Residual Field: -07670
Min/Max Data Record:
Date: 1978 06 07
Latitude: -30.99830
Longitude: +18.29670
Bathymetry, 2- Way Traveltime: 069050
Bathymetry, Corrected Depth: 5203.0
Magnetics Total Field, 1st Sensor: 288170
Magnetics Residual Field: +07550