Survey Identifier: NBP95-7
Format Acronym: MGD77
Data Center File Number: 88010015
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19951208
Source Institution: OREGON STATE UNIVERSITY
Country: USA
Platform Name: NATHANIEL B. PALMER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): LARRY LAWVER/GARRY KLINKHAMMER
Project: NATHANIEL B. PALMER CRUISE:NBP95-7
Funding: NSF
Survey Departure Date (yyyymmdd): 19951027
Port of Departure: PUNTA ARENAS CHILE
Survey Arrival Date (yyyymmdd): 19951208
Port of Arrival: LYTTELTON NEW ZEALAND
Navigation Instrumentation: GPS
Geodetic Datum/Position: SATELITTE
Bathymetry Instrumentation: BATHY SUB-BOTTOM3.5KHZCHIRP SEABEAM12KHZ
Additional Forms of Bathymetric Data: NONE
Magnetics Instrumentation: PROTON MAG
Additional Forms of Magnetics Data: NONE
Gravity Instrumentation: LACOSTE & ROMBERG MARINE GRAVIMETER S-36
Additional Forms of Gravity Data: NONE
Seismic Instrumentation: 6 GUNS MULTI CHANNEL
Formats of Seismic Data: DIGITAL
Topmost Latitude of Survey: -43
Bottommost Latitude: -67
Leftmost Longitude: 172
Rightmost Longitude: -053
General Digitizing Rate of Bathymetry: 1.0
General Sampling Rate of Bathymetry: 1/MINUTE
Assumed Sound Velocity: 1500
Bathymetric Datum Code: 00
Interpolation Scheme: 1-MIN INTERVAL
General Digitizing Rate of Magnetics: 1.0
General Sampling Rate of Magnetics: 60
Magnetic Sensor Tow Distance: 150
Reference Field Code: 12
General Digitizing Rate of Gravity: 1.0
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 4
Theoretical Gravity Formula: IAG SYSTEM 1980
Reference System Code: 3
Reference System: POTSDAM SYSTEM
Departure Base Station Gravity: 9805254
Departure Base Station Description: Lyttelton NZ
Additional Documentation: DATA PROCESSED BY ANTARCTIC SUPPORT ASSOCIATES/RAYTHEON POLAR SERVICES. NGDC COMMENTS: NGDC DELETED SOME OBVIOUS ERRORS FROM THE ORIGINAL DATA SET.
Number of Data Records: 56289
Min/Max Data Record:
Date: 1995 10 28
Latitude: -66.84793
Longitude: -179.99930
Bathymetry, Corrected Depth: 20.0
Magnetics Total Field, 1st Sensor: 536260
Magnetics Residual Field: -06025
Observed Gravity: 9809447
Free-Air Anomaly: -1006
Min/Max Data Record:
Date: 1995 12 06
Latitude: -43.56612
Longitude: +179.99720
Bathymetry, Corrected Depth: 5690.0
Magnetics Total Field, 1st Sensor: 599242
Magnetics Residual Field: +07966
Observed Gravity: 9824182
Free-Air Anomaly: +1775