TAMDEF: Transantarctic Mountains Deformation Network, GPS Measurements of Rock and Ice Motions in South Victoria Land, Antarctica
Entry ID: TAMDEF

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Summary
Abstract: The TAMDEF (TransAntarctic DEFormation) GPS network consists of an
array of 25 primary sites located in the Transantarctic Mountains of
southern Victoria Land and on islands in the adjacent Ross Sea. Ohio
State University and the USGS Antarctic Mapping group jointly carried
out installation and surveying of the TAMDEF array between 1996 and
2001.

Willis et al., (In press; BPRC Report No. 20) provide detailed
information on field methods, data processing, and site
characterization for the TAMDEF network. Steel pins sunk directly into
bedrock were used for monuments. Fixed-height forced-centered level
mounts were used to accurately re-center the GPS antenna at each site
each year. Dorne-Margolin T style choke-ring antennae were exclusively
used to reduce signal interference. All measurements were made at
approximately the same time of year to minimize possible seasonal
fluctuations in the monument positions or atmospheric conditions.
Large multi-day data sets were collected. To be certain that local
periglacial processes did not contaminate the average motion of a
site, we installed a micro-footprint array consisting of at least
3 other GPS monuments around each primary pin. Short, highly accurate
baselines were recorded back to the central pin at least twice over
the 4-year period.

The raw data from the TAMDEF project are available from the UNAVCO
archive at &http://facility.unavco.org/data/data.html&
under &Campaign Data Holdings& and the &Antarctic Support& links. The
data are also available via a web site established at the Ohio State
University &http://www.geology.ohio-state.edu/~willis/&, contact
Michael Willis (willis.146@osu.edu) or Terry Wilson
(wilson.43@osu.edu) for data details and access information.

Related URL
Link: GET DATA
Description: Raw data from UNAVCO is available via FTP under &Campaign Data Holdings&
and then by following the &Antarctic Support Links& for the 1996/1997,
1997/1998, 1998/1999, and 1999/2000 seasons.


Link: GET DATA


Geographic Coverage
 N: -62.83 S: -90.0  E: 180.0  W: -180.0

Location Keywords
CONTINENT > ANTARCTICA > SOUTH VICTORIA LAND
GEOGRAPHIC REGION > POLAR


Science Keywords
SOLID EARTH >GRAVITY/GRAVITATIONAL FIELD >CRUSTAL MOTION >GPS    [Definition]


ISO Topic Category
GEOSCIENTIFIC INFORMATION


Project
TAMDEF >TRANSANTARCTIC MOUNTAINS DEFORMATION PROJECT    [Information]


Data Center
UNAVCO    [Information]
Data Center URL: http://www.unavco.org/facility/

Data Center Personnel
Name: BJORN JOHNS
Phone: 303 381 7470
Fax: 303 381 7501
Email: bjorn at unavco.org
Contact Address:
6350 Nautilus Dr
City: Boulder
Province or State: CO
Postal Code: 80301
Country: USA


Department of Geological Sciences, The Ohio State University    [Information]
Data Center URL: http://www.geology.ohio-state.edu/

Data Center Personnel
Name: TERRY J WILSON
Phone: 614 292 0723
Fax: 614 292 1496
Email: wilson.43 at osu.edu
Contact Address:
125 S Oval Mall
City: Columbus
Province or State: OH
Postal Code: 43210
Country: USA


Personnel
TERRY J WILSON
Role: DIF AUTHOR
Phone: 614 292 0723
Fax: 614 292 1496
Email: wilson.43 at osu.edu
Contact Address:
125 S Oval Mall
City: Columbus
Province or State: OH
Postal Code: 43210
Country: USA



Creation and Review Dates
DIF Creation Date: 2002-03-10
Last DIF Revision Date: 2010-07-07
Future DIF Review Date: 2003-03-10

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