Survey Identifier: NBP93-8


Format Acronym: MGD77
Data Center File Number: 88010002
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19940120
Source Institution: NATL.SCIENCE FOUND./ANTARC.SUPPORT ASSO
Country: UNITED STATES
Platform Name: R/V NATHANIEL PALMER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): LOUIS BARTEK/UNIV OF ALABAMA
Project: NBP93-8 NATIONAL SCIENCE FOUNDATION
Survey Departure Date (yyyymmdd): 19931204
Port of Departure: PUNTA ARENAS, CHILE
Survey Arrival Date (yyyymmdd): 19940118
Port of Arrival: MCMURDO STATION, ANTARTICA
Navigation Instrumentation: FURUNO GPS
Geodetic Datum/Position: PRIM-FURUNO GPS, SEC-ASHTECH GPS
Bathymetry Instrumentation: SINGLE BEAM (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: 210 CI G/I AIRGUNS,50 CI G/I,15 CI WATER
Formats of Seismic Data: GUN,1200&300 M MULTICHANNEL,SCS
Topmost Latitude of Survey: -52
Bottommost Latitude: -78
Leftmost Longitude: +163
Rightmost Longitude: -061
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 = 3.5KHZ
Number of Data Records: 59403

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