Survey Identifier: NBP99-3
Format Acronym: MGD77
Data Center File Number: 88010043
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19990411
Source Institution: HAMILTON COLLEGE
Country: USA
Platform Name: NATHANIEL B. PALMER
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): EUGENE DOMACK
Project: NATHANIEL B. PALMER CRUISE: NBP 99-3
Funding: NSF
Survey Departure Date (yyyymmdd): 19990328
Port of Departure: PUNTA ARENAS CHILE
Survey Arrival Date (yyyymmdd): 19990411
Port of Arrival: PUNTA ARENAS CHILE
Navigation Instrumentation: P-CODE GPS
Geodetic Datum/Position: SATELLITE
Bathymetry Instrumentation: BATHYSUBBOTTOM 3.5KHZCHIRP,SEABEAM 12KHZ
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: NONE
Formats of Seismic Data: DIGITAL
Topmost Latitude of Survey: -52
Bottommost Latitude: -68
Leftmost Longitude: -071
Rightmost Longitude: -061
General Digitizing Rate of Bathymetry: 010
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: 150M
Reference Field Code: 88
Reference Field: IGRF95
General Digitizing Rate of Gravity: 1.0
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Departure Base Station Gravity: 981320
Departure Base Station Description: PUNTA ARENAS CHILE
Arrival Base Station Gravity: 981320
Arrival Base Station Description: PUNTA ARENAS CHILE
Additional Documentation: DATA PROCESSED BY ANTARCTIC SUPPORT ASSOCIATES/RAYTHEON POLAR SERVICES. SEABEAM 2112 CENTER BEAM USED FOR BATHYMETRY. BATHYMETRY DATA CORRECTED USING, XBT PROBE AND LEVITUS DATA OR CTD CAST DATA
Number of Data Records: 18239
Min/Max Data Record:
Date: 1999 03 28
Latitude: -67.21713
Longitude: -70.90663
Bathymetry, Corrected Depth: 6.6
Magnetics Total Field, 1st Sensor: 346797
Magnetics Residual Field: -01506
Observed Gravity: 9818291
Free-Air Anomaly: -0844
Min/Max Data Record:
Date: 1999 04 09
Latitude: -52.35740
Longitude: -61.40590
Bathymetry, Corrected Depth: 4754.9
Magnetics Total Field, 1st Sensor: 422671
Magnetics Residual Field: +14758
Observed Gravity: 9824254
Free-Air Anomaly: +0630