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Channelized ice melting in the ocean boundary layer beneath Pine Island Glacier, Antarctica

Citation

Stanton, TP and Shaw, WJ and Truffer, M and Corr, HFJ and Peters, LE and Riverman, KL and Bindschadler, R and Holland, DM and Anandakrishnan, S, Channelized ice melting in the ocean boundary layer beneath Pine Island Glacier, Antarctica, Science, 341, (6151) pp. 1236-1239. ISSN 0036-8075 (2013) [Refereed Article]

Copyright Statement

Copyright 2013 The Authors

DOI: doi:10.1126/science.1239373

Abstract

Ice shelves play a key role in the mass balance of the Antarctic ice sheets by buttressing their seaward-flowing outlet glaciers; however, they are exposed to the underlying ocean and may weaken if ocean thermal forcing increases. An expedition to the ice shelf of the remote Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet that has rapidly thinned and accelerated in recent decades, has been completed. Observations from geophysical surveys and long-term oceanographic instruments deployed down bore holes into the ocean cavity reveal a buoyancy-driven boundary layer within a basal channel that melts the channel apex by 0.06 meter per day, with near-zero melt rates along the flanks of the channel. A complex pattern of such channels is visible throughout the Pine Island Glacier shelf.

Item Details

Item Type:Refereed Article
Keywords:oceanography, ocean-ice interactions
Research Division:Earth Sciences
Research Group:Oceanography
Research Field:Oceanography not elsewhere classified
Objective Division:Environment
Objective Group:Climate and Climate Change
Objective Field:Effects of Climate Change and Variability on Antarctic and Sub-Antarctic Environments (excl. Social Impacts)
Author:Peters, LE (Dr Leo Peters)
ID Code:103754
Year Published:2013
Web of Science® Times Cited:40
Deposited By:IMAS Research and Education Centre
Deposited On:2015-10-27
Last Modified:2017-10-31
Downloads:0

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