Survey Identifier: WI330581
Format Acronym: MGD77
Data Center File Number: 09780043
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19810724
Source Institution: US NAVAL OCEANOGRAPHIC OFFICE
Country: USA
Platform Name: USNS WILKES
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): W. T. MORTON
Project: WILKES INDIAN OCEAN SURVEY LEG 35 AND 36
Funding: NAVY
Survey Departure Date (yyyymmdd): 19810523
Port of Departure: MUSCAT (MINA QABOOS), OMAN
Survey Arrival Date (yyyymmdd): 19810709
Port of Arrival: KARACHI, PAKISTAN
Navigation Instrumentation: MAGNOVOX 706 SATELLITE RECEIVER
Geodetic Datum/Position: SATELLITE POSITION AND DR
Bathymetry Instrumentation: HARRIS 853-D 2-2/3 DEG BEAM, 12 KHZ
Additional Forms of Bathymetric Data: 1-SEC SWEEP ANALOG, MICROFILM
Magnetics Instrumentation: PROTON PRECESSION MAG - GEOMETRICS
Additional Forms of Magnetics Data: ANALOG RECORD, MICROFILM
Seismic Instrumentation: TELEDYNE 90 KJ SPARKER, 31-126 HZ,1-CHAN
Formats of Seismic Data: 10 AND 4-SECOND ANALOG, MICROFILM
Topmost Latitude of Survey: +25
Bottommost Latitude: +07
Leftmost Longitude: +058
Rightmost Longitude: +080
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 10 SECONDS
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: 10-SEC VALUES AVERAGED TO OBTAIN 1-MIN. AVG. VALUES
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 10
Magnetic Sensor Tow Distance: 1000
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: TOTAL MAG MINUS COMPUTER DERIVED REGIONAL
Additional Documentation: 3.5KHZ PROFILE (H.R. SEIS) COLLECTED BY EDO 240 SYSTEM, 1-SEC RCDR SWEEP RATE, CORES COLLECTED USING MODIFIED 2000 LB EWING CORER W/20-FT LINERED BARREL, WABR (SONOBUOY) MEASUREMENTS FOR SEDIMENT INTERVAL VELOCITY, CTD STATIONS TO BOTTOM, INTERMEDIATE PORT--COLOMBO, SRI LANDA 15-19 JUNE 81
Number of Data Records: 47860
Min/Max Data Record:
Date: 1981 05 23
Latitude: +7.03500
Longitude: +58.56829
Bathymetry, 2- Way Traveltime: 000599
Bathymetry, Corrected Depth: 45.0
Magnetics Total Field, 1st Sensor: 355810
Magnetics Residual Field: -09990
Min/Max Data Record:
Date: 1981 07 09
Latitude: +24.51830
Longitude: +79.64999
Bathymetry, 2- Way Traveltime: 058359
Bathymetry, Corrected Depth: 4400.0
Magnetics Total Field, 1st Sensor: 500000
Magnetics Residual Field: +62440