Survey Identifier: NBP94-1
Format Acronym: MGD77
Data Center File Number: 88010003
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19940120
Source Institution: RICE UNIVERSITY
Country: UNITED STATES
Platform Name: R/V NATHANIEL PALMER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): JOHN ANDERSON
Project: NBP94-1 NATIONAL SCIENCE FOUNDATION
Funding: NSF
Survey Departure Date (yyyymmdd): 19940120
Port of Departure: MCMURDO STATION, ANTARCTICA
Survey Arrival Date (yyyymmdd): 19940211
Port of Arrival: MCMURDO STATION, ANTARTICA
Navigation Instrumentation: ASHTECH GPS
Geodetic Datum/Position: PRIM-ASHTECH GPS, SEC-FURUNO GPS
Bathymetry Instrumentation: SINGLE CHANNEL (SEE COMMENTS)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: EG&G PROTON PRECESSION GRADIOMETER
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: LACOSTE AND ROMBERG
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: 50 CI G/I AIRGUN,SINGLE CHANNEL STREAMER
Topmost Latitude of Survey: -72
Bottommost Latitude: -78
Leftmost Longitude: +165
Rightmost Longitude: -171
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 1/2SECONDS
Assumed Sound Velocity: 1500
Interpolation Scheme: 00
General Digitizing Rate of Magnetics: 010
General Sampling Rate of Magnetics: 01
Magnetic Sensor Tow Distance: 300
Reference Field Code: 88
Reference Field: IGRF-90
Method of Applying Residual Field: POINT FOR POINT
General Digitizing Rate of Gravity: 001
General Sampling Rate of Gravity: 10
Reference System Code: 3
Departure Base Station Gravity: 9813208
Departure Base Station Description: PA-51230N
Arrival Base Station Gravity: 9813208
Arrival Base Station Description: PA-51230N
Additional Documentation: DATA WAS PROCESSED BY ANTARCTIC SUPPORT ASSOCIATES. BATHYMETRY INSTRUMENTATION: <2000M = SIMRAD EK500; >2000M = BATHY 2000 3.5KHZ
Number of Data Records: 31533
Min/Max Data Record:
Date: 1994 01 20
Latitude: -77.84970
Longitude: -179.99900
Bathymetry, 2- Way Traveltime: 001320
Bathymetry, Corrected Depth: 99.0
Magnetics Total Field, 1st Sensor: 629105
Magnetics Residual Field: +01833
Observed Gravity: 9827166
Free-Air Anomaly: -1662
Min/Max Data Record:
Date: 1994 02 11
Latitude: -72.15430
Longitude: +180.00000
Bathymetry, 2- Way Traveltime: 025870
Bathymetry, Corrected Depth: 1897.0
Magnetics Total Field, 1st Sensor: 644830
Magnetics Residual Field: +08339
Observed Gravity: 9829923
Free-Air Anomaly: +0447