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Global Change Master Directory (GCMD)
Aerogeophysical survey of western Marie Byrd Land, Antarctica
Entry ID: SOAR1999WMB


Summary
Abstract: An aerogeophysical survey of the western Marie Byrd Land region of
Antarctica was flown in Dec. 1998-Jan. 1999, measuring surface and
base of ice elevation by radar and strength of magnetic and gravity
fields. The coverage area measured about 460 by 360 km, long
dimension oriented NE, and included the Shirase Coast of the eastern
Ross Ice Shelf, much of the Edward VII Peninsula, the Sulzberger Ice
Shelf, and the Ford Ranges. Track spacing was either 5.3 or 10.6 km
over most of the area. The 60 Mhz radar system usually provided good
images of the base of the ice for thicknesses less than 1 km but
rarely imaged thicknesses greater than 1.5 km. Determination of
gravity anomalies required corrections for acceleration of the
aircraft as measured by differential carrier-phase GPS navigation,
filtering to remove wavelengths less than 10 km, which are commonly
contaminated by aircraft motion, and editing of occasional spikes.
The gravity anomalies allow estimation of bed topography under
floating ice and under ice too thick for radar imaging. Magnetic
anomaly reduction includes a correction for daily variation as
measured at the base camp. Data formats for all observations include
files for original flight profiles and grids of edited data at 1.06 km
node spacing.

Geographic Coverage
 N: -75.5 S: -80.5  E: -136.0  W: -158.0

Data Set Citation
Version: Not provided


Temporal Coverage
Start Date: 1970-01-01


Location Keywords
CONTINENT > ANTARCTICA
GEOGRAPHIC REGION > POLAR


Science Keywords
LAND SURFACE >GEOMORPHIC LANDFORMS/PROCESSES >GLACIAL PROCESSES    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION    [Definition]


Platform
P-3B >Lockheed P-3B Orion    [Information]


Instrument
Radar Altimeters    [Information]
GRAVIMETERS    [Information]
MAGNETOMETERS    [Information]
RADAR ECHO SOUNDERS


Project
ESIP >Earth Science Information Partners Program    [Information]


Data Center
National Snow and Ice Data Center    [Information]
Data Center URL: http://nsidc.org

Data Center Personnel
Name: NSIDC USER SERVICES
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA

NSIDC Antarctic Glaciological Data Center    [Information]
Data Center URL: http://nsidc.org/agdc/

Data Center Personnel
Name: ROB BAUER
Phone: 303-492-2378
Fax: 303-492-2468
Email: bauer at nsidc.org
Contact Address:
University of Colorado
Cooperative Institute for Research in Environmental Sciences
CIRES 449 UCB
City: Boulder
Province or State: CO
Postal Code: 80309
Country: USA


Personnel
DOUGLAS S. WILSON
Role: METADATA AUTHOR
Email: dwilson at geol.ucsb.edu
Contact Address:
University of Santa Barbara
Department of Geological Sciences
City: Santa Barbara
Province or State: CA
Postal Code: 93106-9630
Country: USA


DOUGLAS S. WILSON
Role: TECHNICAL CONTACT
Email: dwilson at geol.ucsb.edu
Contact Address:
University of Santa Barbara
Department of Geological Sciences
City: Santa Barbara
Province or State: CA
Postal Code: 93106-9630
Country: USA


BRUCE P. LUYENDYK
Role: METADATA AUTHOR
Email: luyendyk at geol.ucsb.edu
Contact Address:
University of California, Santa Barbara
Department of Geological Sciences
City: Santa Barbara
Province or State: CA
Postal Code: 93106-9630
Country: USA


BRUCE P. LUYENDYK
Role: INVESTIGATOR
Email: luyendyk at geol.ucsb.edu
Contact Address:
University of California, Santa Barbara
Department of Geological Sciences
City: Santa Barbara
Province or State: CA
Postal Code: 93106-9630
Country: USA


Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 1970-01-01
Last DIF Revision Date: 2018-10-01



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