Survey Identifier: HS840923


Format Acronym: MGD77
Data Center File Number: J1020030
Parameters Surveyed Code: 53533
File Creation Date (yyyymmdd): 19910920
Source Institution: HYDROGRAPHIC DEPARTMENT
Country: JAPAN
Platform Name: SHOYO
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): TADASHI KONDO
Project: SUMISU ISLAND SUBMARINE GEOLOGICAL STRUCTURE SURVEY
Funding: HYDROGRAPHIC DEP
Survey Departure Date (yyyymmdd): 198409
Port of Departure: TOKYO
Survey Arrival Date (yyyymmdd): 198411
Port of Arrival: TOKYO
Navigation Instrumentation: LORAN-C,NNSS
Geodetic Datum/Position: LORAN-C,NNSS
Bathymetry Instrumentation: NS-77
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: PROTON MAGNET METER
Additional Forms of Magnetics Data: ANALOG RECORDS
Additional Forms of Gravity Data: ANALOG RECORDS
Topmost Latitude of Survey: +32
Bottommost Latitude: +30
Leftmost Longitude: +138
Rightmost Longitude: +141
General Digitizing Rate of Bathymetry: 056
General Digitizing Rate of Gravity: 011
Additional Documentation: OLD NGDC:56080030
Number of Data Records: 26609

Min/Max Data Record:
Date: 1984 09 23
Latitude: +30.66001
Longitude: +138.56141
Bathymetry, Corrected Depth: 118.0
Observed Gravity: 9785058
Free-Air Anomaly: -0358

Min/Max Data Record:
Date: 1984 10 24
Latitude: +31.85244
Longitude: +140.39673
Bathymetry, Corrected Depth: 3436.0
Observed Gravity: 9787256
Free-Air Anomaly: +1693