Survey Identifier: NBP95-3
Format Acronym: MGD77
Data Center File Number: 88010011
Parameters Surveyed Code: 50000
File Creation Date (yyyymmdd): 19950621
Source Institution: UNIVERSITY OF ALASKA FAIRBANKS
Country: USA
Platform Name: NATHANIEL B. PALMER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): MARTIN JEFFRIES
Project: NATHANIEL B. PALMER CRUISE: NBP95-3
Funding: NSF
Survey Departure Date (yyyymmdd): 19950502
Port of Departure: HOBART TAZMANIA
Survey Arrival Date (yyyymmdd): 19950621
Port of Arrival: LYTTELTON NEW ZEALAND
Navigation Instrumentation: GPS
Geodetic Datum/Position: SATELITTE
Bathymetry Instrumentation: ODEC BATHY 2000 SUB-BOTTOM 3.5 KHZ CHIRP
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: -42
Bottommost Latitude: -78
Leftmost Longitude: 147
Rightmost Longitude: -165
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: 9805264
Departure Base Station Description: Lyttelton NZ
Additional Documentation: DATA PROCESSED BY ANTARCTIC SUPPORT ASSOCIATES/RAYTHEON POLAR SERVICES. NGDC COMMENTS: NGDC HAS DELETED SOME QUESTIONABLE DATA FROM THE ORIGINAL DATA, SET BUT REMAINING DATA IN PORTIONS OF THIS CRUISE MAY BE SPURIOUS, NOISY AND, ARTIFACT-LADEN. THERE APPEAR TO BE PHASING ERRORS PRODUCING STEP-FUNCTION, OFFSETS IN THE BATHYMETRY. THE FULL UNEDITED VERSION OF THE CRUISE DATA IS, AVAILABLE FROM NGDC.
Number of Data Records: 67942
Min/Max Data Record:
Date: 1995 05 02
Latitude: -77.84304
Longitude: -180.00000
Bathymetry, 2- Way Traveltime: 001350
Bathymetry, Corrected Depth: 101.0
Min/Max Data Record:
Date: 1995 06 18
Latitude: -42.90295
Longitude: +180.00000
Bathymetry, 2- Way Traveltime: 066670
Bathymetry, Corrected Depth: 4996.0