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New constraints on the structure and dynamics of the East Antarctic Ice Sheet from the joint IPY/Ice Bridge ICECAP aerogeophysical project

Citation

Blankenship, DD and Young, DA and Siegert, MJ and van Ommen, TD and Roberts, JL and Wright, A and Warner, RC and Holt, JW and Young, NW and Le Meur, E and Legresy, B and Cavitte, M and Icecap, Team, New constraints on the structure and dynamics of the East Antarctic Ice Sheet from the joint IPY/Ice Bridge ICECAP aerogeophysical project, 2010 AGU Fall Meeting, 13-17 December 2010, San Francisco, California, pp. C22B-05. (2010) [Refereed Conference Paper]

Abstract

Ice within marine basins of East Antarctica, and their outlets, represent the ultimate limit on sea level change. The region of East Antarctica between the Ross Sea and Wilkes Land hosts a number of major basin, but has been poorly understood. Long range aerogeophysics from US, Australian and French stations, with significant British and IceBridge support, has, under the banner of the ICECAP project, greatly improved our knowledge of ice thickness, surface elevation, and crustal structure of the Wilkes and Aurora Subglacial Basins, as well as the Totten Glacier, Cook Ice Shelf, and Byrd Glacier. We will discuss the evolution of the Wilkes and Aurora Subglacial Basins, new constraints on the geometry of the major outlet glaciers, as well as our results from surface elevation change measurements over dynamic regions of the ice sheet. We will discuss the implications of our data for the presence of mid Pleistocene ice in central East Antarctica. Future directions for ICECAP will be discussed.

Item Details

Item Type:Refereed Conference Paper
Keywords:Ice sheets, Ice streams, Remote sensing
Research Division:Earth Sciences
Research Group:Physical Geography and Environmental Geoscience
Research Field:Glaciology
Objective Division:Environment
Objective Group:Climate and Climate Change
Objective Field:Climate and Climate Change not elsewhere classified
Author:van Ommen, TD (Dr Tas van Ommen)
Author:Roberts, JL (Dr Jason Roberts)
Author:Warner, RC (Dr Roland Warner)
Author:Young, NW (Mr Neal Young)
ID Code:73261
Year Published:2010
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2011-09-22
Last Modified:2012-03-20
Downloads:0

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