Survey Identifier: NBP97-1


Format Acronym: MGD77
Data Center File Number: 88010040
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19970211
Source Institution: LAMONT-DOHERTY EARTH OBSERVATORY
Country: USA
Platform Name: NATHANIEL B. PALMER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): JOHN MARRA
Project: NATHANIEL B. PALMER CRUISE: NBP97-1
Funding: NSF
Survey Departure Date (yyyymmdd): 19970113
Port of Departure: MCMURDO ANTARCTICA
Survey Arrival Date (yyyymmdd): 19970211
Port of Arrival: MCMURDO ANTARCTICA
Navigation Instrumentation: P-CODE GPS
Geodetic Datum/Position: SATELLITE
Bathymetry Instrumentation: BATHY SUBBOTTOM 3.5KHZCHIRP,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
Formats of Seismic Data: DIGITAL
Topmost Latitude of Survey: -73
Bottommost Latitude: -79
Leftmost Longitude: 163
Rightmost Longitude: -173
General Digitizing Rate of Bathymetry: 010
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: 150M
Reference Field Code: 88
Reference Field: IGRF95
General Digitizing Rate of Gravity: 1.0
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Arrival Base Station Gravity: 982977
Arrival Base Station Description: MCMURDO STATION ANTARCTICA
Additional Documentation: DATA PROCESSED BY ANTARCTIC SUPPORT ASSOCIATES/RAYTHEON POLAR SERVICES. THE GRAVITY TIE PRIOR TO THE CRUISE WAS TAKEN IN CHRISTCHURCH NEW ZEALAND, STATION: 0217-0 VALUE: 980494.29 CRUISE NBP97-1 ORIGINATED IN MCMURDO. SEABEAM 2112 CENTER BEAM USED FOR BATHYMETRY. BATHYMETRY DATA CORRECTED USING, XBT PROBE AND LEVITUS DATA OR CTD CAST DATA.
Number of Data Records: 40972

Min/Max Data Record:
Date: 1997 01 12
Latitude: -78.10363
Longitude: -180.00000
Bathymetry, Corrected Depth: 207.7

Min/Max Data Record:
Date: 1997 02 09
Latitude: -73.99151
Longitude: +180.00000
Bathymetry, Corrected Depth: 1597.6