Survey Identifier: NATSUS84
Format Acronym: MGD77
Data Center File Number: J2020001
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19
Source Institution: SCRIPPS INSTITUTION OF OCEANOGRAPHY
Country: JAPAN
Platform Name: M/S NATSUSHIMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): E.HONZA, K.B.LEWIS
Project: NATSUSHIMA-84 - INDIAN/PACIFIC PLATE BOUNDARY ARC STUDY (N
Funding: . TONGA RIDGE)
Survey Departure Date (yyyymmdd): 19841114
Port of Departure: SUVA, FIJI
Survey Arrival Date (yyyymmdd): 19841213
Port of Arrival: SUVA, FIJI
Navigation Instrumentation: TRANSAT(JRC NWZ-3500D) & GPS(6HR/DAY)
Bathymetry Instrumentation: NEC NS101 (12KHZ)
Magnetics Instrumentation: GEOMETRICS MAGNETOMETER MOD-G 801
Gravity Instrumentation: NONE COLLECTED
Seismic Instrumentation: BOLT 150&450 CU.IN. AIRGUNS
Formats of Seismic Data: SINGLE & MULTICHANNEL (DIGITAL)
Topmost Latitude of Survey: -14
Bottommost Latitude: -19
Leftmost Longitude: +178
Rightmost Longitude: -171
General Digitizing Rate of Bathymetry: 050
Assumed Sound Velocity: 15000
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field: UNKNOWN
Method of Applying Residual Field: UNKNOWN
Additional Documentation: PROCESSED BY SCG & GDC, SCRIPPS INSTITUTION OF OCEANOGRAPHY. DATA OBTAINED, BY D. TAPPIN (BRIT. GEOL. SURV./NERC) FROM GEOLOGICAL SURVEY OF JAPAN IN 1996. PROCESSING OF MULTICHANNEL SEISMICS (6 CHANNEL, 12 FOLD) DONE BY GSJ in 1986.
Number of Data Records: 7686
Min/Max Data Record:
Date: 1984 11 14
Latitude: -18.74664
Longitude: -179.99832
Bathymetry, 2- Way Traveltime: 004187
Bathymetry, Corrected Depth: 318.0
Magnetics Total Field, 1st Sensor: 396030
Magnetics Residual Field: -07867
Min/Max Data Record:
Date: 1984 12 13
Latitude: -14.19054
Longitude: +179.99728
Bathymetry, 2- Way Traveltime: 114640
Bathymetry, Corrected Depth: 8800.0
Magnetics Total Field, 1st Sensor: 438470
Magnetics Residual Field: +09429