Survey Identifier: NBP94-7
Format Acronym: MGD77
Data Center File Number: 88010004
Parameters Surveyed Code: 50553
File Creation Date (yyyymmdd): 19950204
Source Institution: U. ALABAMA/NATIONAL SCIENCE FOUNDATION
Country: USA
Platform Name: NATHANIEL B. PALMER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): LOUIS BARTEK/UNIVERSITY ALABAMA
Project: NATHANIEL B. PALMER CRUISE: NBP94-7
Funding: NAT SCIENCE FNDN
Survey Departure Date (yyyymmdd): 19941229
Port of Departure: LYTTELTON NEW ZEALAND
Survey Arrival Date (yyyymmdd): 19950204
Port of Arrival: MCMURDO ANTARCTICA
Navigation Instrumentation: ASHTECH GPS
Geodetic Datum/Position: PRIM-ASHTECH GPS,SEC-FURUNO GPS
Bathymetry Instrumentation: BATHY 2000 CHIRP SONAR (0.5-5.5 KHZ)
Additional Forms of Bathymetric Data: ANALOG, DIGITAL MAGNETO OPTICAL
Gravity Instrumentation: LACOSTE AND ROMBERG S-36
Additional Forms of Gravity Data: DIGITAL RECORDS ONLY
Seismic Instrumentation: 1 50 CU IN G/I AIRGUNS, 1 CHANNELS
Formats of Seismic Data: DIGITAL DATA ON DAT TAPE, ANALOG RCDS
Topmost Latitude of Survey: -43
Bottommost Latitude: -79
Leftmost Longitude: +163
Rightmost Longitude: -166
General Digitizing Rate of Bathymetry: 010
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 00
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 10
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM (0967)
Reference System Code: 3
Reference System: SYSTEM IGSN 71
Additional Documentation: DATA PROCESSED BY ANTARCTIC SUPPORT ASSOCIATES
Number of Data Records: 52273
Min/Max Data Record:
Date: 1994 12 28
Latitude: -78.09513
Longitude: -179.99990
Bathymetry, 2- Way Traveltime: 000760
Bathymetry, Corrected Depth: 57.0
Observed Gravity: 9804232
Free-Air Anomaly: -6057
Min/Max Data Record:
Date: 1995 02 03
Latitude: -43.56539
Longitude: +179.99990
Bathymetry, 2- Way Traveltime: 077280
Bathymetry, Corrected Depth: 5815.0
Observed Gravity: 9829530
Free-Air Anomaly: +1424