Survey Identifier: WI330382
Format Acronym: MGD77
Data Center File Number: 09780046
Parameters Surveyed Code: 55133
File Creation Date (yyyymmdd): 19
Source Institution: US NAVAL OCEANOGRAPHIC OFFICE
Country: USA
Platform Name: USNS WILKES
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): GSELL+BARKSON
Project: INDIAN OCEAN ACOUSTICS SURVEY
Funding: NAVOCEANO
Survey Departure Date (yyyymmdd): 19820108
Port of Departure: COLOMBO,SRILANKA
Survey Arrival Date (yyyymmdd): 19820319
Port of Arrival: DJIBOUTI
Navigation Instrumentation: MAGNAVOX 706 SATNAV
Geodetic Datum/Position: SATNAV+DR
Bathymetry Instrumentation: HARRIS 853D 2-2/3 BEAM 12KHZ 1-SEC SWP
Additional Forms of Bathymetric Data: ANALOG, MICROFILM
Magnetics Instrumentation: PROTON PRECESSION MAGNETOMETER GEOMETRIC
Additional Forms of Magnetics Data: ANALOG, MICROFILM
Seismic Instrumentation: TELEDYNE 90 KJ SPARKER , SINGLE CHANNEL
Formats of Seismic Data: 10 AND 4 SEC ANALOG, MICROFILM
Topmost Latitude of Survey: +12
Bottommost Latitude: -02
Leftmost Longitude: +053
Rightmost Longitude: +080
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 10-SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: 6 VALUES USED TO COMPUTE 1-MINUITE AVERAGES
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 10
Magnetic Sensor Tow Distance: 0250
Reference Field Code: 03
Reference Field: IGRF 65
Method of Applying Residual Field: BASED ON COMPUTER DERIVED IGRF FOR EA 1-MIN POS
Additional Documentation: INTERMEDIATE PORTS AT COLOMBO 29 JAN - 3 FEB AND AGAIN 26 FEB TO 2 MARCH, 3.5 KHZ PROFILES COLLECTED - EDO 240 SYS 1-SEC SWP ANALOG AND MICROFILM, 14 WABR STA, 40 CORES, FIRST LEG INCLUDED TRACK TO DIEGO GARCIA TO PICKUP EQUIPMENT
Number of Data Records: 33791
Min/Max Data Record:
Date: 1982 01 08
Latitude: -1.55329
Longitude: +53.57170
Bathymetry, 2- Way Traveltime: 004613
Bathymetry, Corrected Depth: 350.0
Magnetics Total Field, 1st Sensor: 297916
Magnetics Residual Field: -09980
Min/Max Data Record:
Date: 1982 03 19
Latitude: +11.37670
Longitude: +79.93500
Bathymetry, 2- Way Traveltime: 068639
Bathymetry, Corrected Depth: 5184.0
Magnetics Total Field, 1st Sensor: 402092
Magnetics Residual Field: +10820