Survey Identifier: NBP98-6A
Format Acronym: MGD77
Data Center File Number: 88010041
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19981003
Source Institution: SCRIPPS INST. SEABEAM TESTING
Country: USA
Platform Name: NATHANIEL B. PALMER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): STEVE CANDE JOANNE STOCK
Project: NATHANIEL B. PALMER CRUISE: NBP98-6A
Funding: NSF
Survey Departure Date (yyyymmdd): 19981003
Port of Departure: HONOLULU HAWAII
Survey Arrival Date (yyyymmdd): 19981026
Port of Arrival: LYTTELTON NEW ZEALAND
Navigation Instrumentation: P-CODE GPS
Geodetic Datum/Position: SATELLITE
Bathymetry Instrumentation: BATHYSUBBOTTOM 3.5KHZCHIRP,SEABEAM 12KHZ
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: NONE
Topmost Latitude of Survey: 22
Bottommost Latitude: -44
Leftmost Longitude: 173
Rightmost Longitude: -157
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: 06
Magnetic Sensor Tow Distance: 250
Reference Field Code: 12
General Digitizing Rate of Gravity: 1.0
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Departure Base Station Gravity: 978927
Departure Base Station Description: HONOLULU HAWAII
Arrival Base Station Gravity: 980564
Arrival Base Station Description: CHRISTCHURCH NEW ZEALAND
Additional Documentation: DATA PROCESSED BY ANTARCTIC SUPPORT ASSOCIATES/RAYTHEON POLAR SERVICES. SEABEAM 2112 CENTER BEAM USED FOR BATHYMETRY. BATHYMETRY DATA CORRECTED USING, XBT PROBE AND LEVITUS DATA OR CTD CAST DATA.
Number of Data Records: 30284
Min/Max Data Record:
Date: 1998 10 03
Latitude: -43.52459
Longitude: -179.99940
Bathymetry, Corrected Depth: 1.3
Magnetics Total Field, 1st Sensor: 318655
Magnetics Residual Field: -09795
Observed Gravity: 9779802
Free-Air Anomaly: -2271
Min/Max Data Record:
Date: 1998 10 24
Latitude: +21.30621
Longitude: +179.99930
Bathymetry, Corrected Depth: 8594.0
Magnetics Total Field, 1st Sensor: 557761
Magnetics Residual Field: +14753
Observed Gravity: 9805000
Free-Air Anomaly: +3329