Survey Identifier: NBP93-7
Format Acronym: MGD77
Data Center File Number: 88010009
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19940118
Source Institution: UNIVERSITY OF ALABAMA
Country: USA
Platform Name: NATHANIEL B. PALMER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): LOU BARTEK
Project: NATHANIEL B. PALMER CRUISE: NBP93-7
Funding: NSF
Survey Departure Date (yyyymmdd): 19931204
Port of Departure: PUNTA ARENAS CHILE
Survey Arrival Date (yyyymmdd): 19940108
Port of Arrival: MCMURDO ANTARCTICA
Navigation Instrumentation: GPS
Geodetic Datum/Position: SATELITTE
Bathymetry Instrumentation: BATHY 2000 3.5 KHZ
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: 2 GUNS SINGLE CHANNEL
Formats of Seismic Data: DIGITAL
Topmost Latitude of Survey: -52
Bottommost Latitude: -78
Leftmost Longitude: 163
Rightmost Longitude: -061
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: COMMENTS BY NGDC: SOME DATA FROM THIS CRUISE MAY BE SPURIOUS, NOISY OR, ARTIFACT-LADEN. NGDC IS UNABLE TO DETERMINE IF ANY POINTS SHOULD BE MODIFIED, OR DELETED. DATA PROCESSED BY ANTARCTIC SUPPORT ASSOCIATES/RAYTHEON POLAR SERVICES.
Number of Data Records: 59401
Min/Max Data Record:
Date: 1993 12 05
Latitude: -77.97074
Longitude: -179.99960
Bathymetry, 2- Way Traveltime: 002800
Bathymetry, Corrected Depth: 10.0
Magnetics Total Field, 1st Sensor: 436844
Magnetics Residual Field: -02033
Observed Gravity: 9817913
Free-Air Anomaly: -7386
Min/Max Data Record:
Date: 1994 01 17
Latitude: -52.35472
Longitude: +179.99960
Bathymetry, 2- Way Traveltime: 066000
Bathymetry, Corrected Depth: 4929.0
Magnetics Total Field, 1st Sensor: 474181
Magnetics Residual Field: +04028
Observed Gravity: 9830039
Free-Air Anomaly: +0733