Survey Identifier: NBP95-4
Format Acronym: MGD77
Data Center File Number: 88010012
Parameters Surveyed Code: 50500
File Creation Date (yyyymmdd): 19950708
Source Institution: NATIONAL SCIENCE FOUNDATION/ASA
Country: USA
Platform Name: NATHANIEL B PALMER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): NA
Project: NATHANIEL B. PALMER CRUISE: NBP95-4
Funding: NSF
Survey Departure Date (yyyymmdd): 19950701
Port of Departure: LYTTELTON NEW ZEALAND
Survey Arrival Date (yyyymmdd): 19950708
Port of Arrival: AUCKLAND NEW ZEALAND
Navigation Instrumentation: GPS
Geodetic Datum/Position: SATELITTE
Bathymetry Instrumentation: BATHY SUB-BOTTOM3.5 KHZCHIRP SEABEAM12KH
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: -35
Bottommost Latitude: -44
Leftmost Longitude: 173
Rightmost Longitude: -178
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
Additional Documentation: DATA PROCESSED BY ANTARCTIC SUPPORT ASSOCIATES/RAYTHEON POLAR SERVICES.
Number of Data Records: 9791
Min/Max Data Record:
Date: 1995 07 01
Latitude: -43.49002
Longitude: -179.99960
Bathymetry, 2- Way Traveltime: 000350
Bathymetry, Corrected Depth: 26.0
Observed Gravity: 9804917
Free-Air Anomaly: +0470
Min/Max Data Record:
Date: 1995 07 07
Latitude: -35.31040
Longitude: +179.99820
Bathymetry, 2- Way Traveltime: 099810
Bathymetry, Corrected Depth: 7613.0
Observed Gravity: 9805354
Free-Air Anomaly: +0600