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Australia

http://rses.anu.edu.au/geodynamics/gps/antarctic/index.html

Aim of Project

The aim of the project is to estimate present-day glacial isostatic adjustment in East Antarctica.

Principal Contacts for Data

Paul Tregoning, Paul.Tregoning@anu.edu.au

Project Scientists

Paul Tregoning, Australian National University, Paul.Tregoning@anu.edu.au
Kurt Lambeck, Australian National University, Kurt.Lambeck@anu.edu.au
Herb McQueen, Australian National University, Herb@rses.anu.edu.au

Project Activities

Remote, solar-powered GPS installations have been made at sites in the Prince Charles Mountains and Enderby Land. Sites are equipped with power-controlling devices that hibernate the systems when there is insufficient power to maintain operations, then awaken the systems after winter upon the return of the sun. Satellite phone communications permit the automated transmission of data from the sites back to Canberra.

Principal Science Objectives

To estimate present-day glacial isostatic adjustment in East Antarctica, thereby providing constraints on GIA models.

Research Highlights

The sites were the first installations of permanent GPS equipment in the region. New power-controlling technology was developed for this project and worked successfully, with up to 220 days/year being observed on solar-power alone.

Published Papers and Abstracts

Tregoning, P., G. Ramillien, H. McQueen and D. Zwartz 2009. Glacial isostatic adjustment and non-stationary signals observed by GRACE, J. Geophys. Res.114 B06406, doi:10.1029/2008JB006161

Tregoning, P., Welsh, A., McQueen, H. and Lambeck, K. 2000. The search for postglacial rebound near the Lambert Glacier, Antarctica . Earth Planets Space, 52 , 1037-1041.

Institutes / Agencies that provided project support

Agence National de la Recherche (ANR)
Funding and logistical support from Institut Paul Emile Victor (IPEV)

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