Survey Identifier: NBP9604
Format Acronym: MGD77
Data Center File Number: 88010008
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19971016
Source Institution: LAMONT DOHERTY EARTH OBSERVATORY
Country: US
Platform Name: R/V Palmer
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Dr. Robert Anderson
Project: ASA, Southern Oceans Process Study
Funding: NSF
Survey Departure Date (yyyymmdd): 19960829
Port of Departure: Lyttelton, New Zealand
Survey Arrival Date (yyyymmdd): 19960922
Port of Arrival: Lyttelton, New Zealand
Navigation Instrumentation: P-CODE GPS
Geodetic Datum/Position: SATELLITE
Bathymetry Instrumentation: SeaBeam 2112
Additional Forms of Bathymetric Data: NONE
Magnetics Instrumentation: PROTOM MAG
Additional Forms of Magnetics Data: NONE
Gravity Instrumentation: LACOSTE + ROMBERT MARINE GRAVIMETER S-36
Additional Forms of Gravity Data: NONE
Formats of Seismic Data: DIGITAL
Topmost Latitude of Survey: -43
Bottommost Latitude: -65
Leftmost Longitude: +172
Rightmost Longitude: -168
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: VAR W/ DEPTH
Interpolation Scheme: 1 MINUTE EXTRACTIONS CLOSEST TO THE MINUTE (VERTICAL BM)
General Digitizing Rate of Magnetics: 012
General Sampling Rate of Magnetics: 60
Magnetic Sensor Tow Distance: 150M
Reference Field Code: 88
Reference Field: IGRF95
General Digitizing Rate of Gravity: 010
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Departure Base Station Gravity: 981320
Departure Base Station Description: PUNTA ARENAS, CHILE
Arrival Base Station Gravity: 980526
Arrival Base Station Description: LYTTELTON, NEW ZEALAND
Additional Documentation: An mgd77 formated file was sent with this multibeam data that was used for, this database(GEODAS).
Number of Data Records: 32845
Min/Max Data Record:
Date: 1996 08 29
Latitude: -64.20252
Longitude: -179.99970
Bathymetry, Corrected Depth: 105.0
Magnetics Total Field, 1st Sensor: 578147
Magnetics Residual Field: -11650
Observed Gravity: 9803659
Free-Air Anomaly: -3325
Min/Max Data Record:
Date: 1996 09 22
Latitude: -43.55737
Longitude: +179.99800
Bathymetry, Corrected Depth: 6531.0
Magnetics Total Field, 1st Sensor: 623512
Magnetics Residual Field: +11192
Observed Gravity: 9820003
Free-Air Anomaly: -0191