Survey Identifier: 78123003
Format Acronym: MGD77
Data Center File Number: 08010052
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19
Source Institution: HAWAII INSTITUTE OF GEOPHYSICS
Country: U.S.A.
Platform Name: R/V KANA KEOKI
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): STEVE JOHNSON
Project: ROSE PROJECT, LEG II, KK78123003
Funding: ONR/NSF
Survey Departure Date (yyyymmdd): 19790224
Port of Departure: MANZANILLO, MEXICO
Survey Arrival Date (yyyymmdd): 19790326
Port of Arrival: ACAPULCO, MEXICO
Navigation Instrumentation: SATELLITE, OMEGA
Geodetic Datum/Position: PRIM-SATELLITE
Bathymetry Instrumentation: 3.5 KHZ.,30-DEGREE BEAM,1-SEC.SWEEP
Additional Forms of Bathymetric Data: ANALOG,MICROFILM
Magnetics Instrumentation: PROTON PRECESSION MAG-GEOMETRICS
Additional Forms of Magnetics Data: ANALOG,MICROFILM
Gravity Instrumentation: LACOSTE-ROMBERG S-42 (OSU METER)
Additional Forms of Gravity Data: ANALOG,MICROFILM
Seismic Instrumentation: (SEE ADD.DOC. 18)
Formats of Seismic Data: ANALOG,MICROFILM,DIGITAL
Topmost Latitude of Survey: +33
Bottommost Latitude: +14
Leftmost Longitude: -118
Rightmost Longitude: -100
General Digitizing Rate of Bathymetry: 17
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
Interpolation Scheme: NO INTERPOLATION
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 06
Magnetic Sensor Tow Distance: 0213
Sensor Depth: 00000
Horizontal Sensor Separation: 000
Reference Field Code: 04
Reference Field: IGRF 1975
Method of Applying Residual Field: CALCULATED FOR EACH DATA VALUE
General Digitizing Rate of Gravity: 050
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAGSYSTEM1967
Reference System Code: 3
Reference System: IGSN71
Corrections Applied: DRIFT,+0.0689 MGAL PER DAY
Departure Base Station Gravity: 9795363
Departure Base Station Description: SAN DIEGO,CALIF.,U.S.A.
Arrival Base Station Gravity: 0000000
Additional Documentation: 09 120-250HZ.,5-SEC.REP.RATE,XBT:4-6,4500J SPARKER,OBS#145-157, 09 DIGITAL REFRACTION DATA, 15 GRAVITY BASE STATIONS IN GEORGE P. WOOLLARD AND JOHN C. ROSE, 15 INTERNATIONAL GRAVITY MEASUREMENTS, MADISON, UNIV OF WISCONSIN, 1963, 15 STILL METER READING 7297.2
Number of Data Records: 53751
Min/Max Data Record:
Date: 1979 02 24
Latitude: +14.08515
Longitude: -117.73184
Bathymetry, 2- Way Traveltime: 000380
Bathymetry, Corrected Depth: 28.0
Magnetics Total Field, 1st Sensor: 390100
Magnetics Residual Field: -04520
Free-Air Anomaly: -1121
Min/Max Data Record:
Date: 1979 03 26
Latitude: +32.87537
Longitude: -100.19109
Bathymetry, 2- Way Traveltime: 068930
Bathymetry, Corrected Depth: 5193.0
Magnetics Total Field, 1st Sensor: 490670
Magnetics Residual Field: +12330
Free-Air Anomaly: +0753