Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans
A growing body of observational data suggests that PineIsland Glacier (PIG) is changing on decadal or shorter timescales. These changes may have far-reaching consequences for the future of the West Antarctic ice sheet (WAIS) and global sea levels because of PIG’s role as the icesheet’s primary drain...
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American Geophysical Union
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ftunivzuerich:oai:www.zora.uzh.ch:136437 2024-09-15T17:46:56+00:00 Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans Payne, Antony J Vieli, Andreas Shepherd, Andrew P Wingham, Duncan J Rignot, Eric 2004 application/pdf https://www.zora.uzh.ch/id/eprint/136437/ https://www.zora.uzh.ch/id/eprint/136437/1/2004_Payne_et_al-2004-Geophysical_Research_Letters.pdf https://doi.org/10.5167/uzh-136437 https://doi.org/10.1029/2004GL021284 eng eng American Geophysical Union https://www.zora.uzh.ch/id/eprint/136437/1/2004_Payne_et_al-2004-Geophysical_Research_Letters.pdf doi:10.5167/uzh-136437 doi:10.1029/2004GL021284 urn:issn:0094-8276 info:eu-repo/semantics/openAccess Payne, Antony J; Vieli, Andreas; Shepherd, Andrew P; Wingham, Duncan J; Rignot, Eric (2004). Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans. Geophysical Research Letters, 31(23):L23401. Institute of Geography 910 Geography & travel Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2004 ftunivzuerich https://doi.org/10.5167/uzh-13643710.1029/2004GL021284 2024-08-21T00:19:56Z A growing body of observational data suggests that PineIsland Glacier (PIG) is changing on decadal or shorter timescales. These changes may have far-reaching consequences for the future of the West Antarctic ice sheet (WAIS) and global sea levels because of PIG’s role as the icesheet’s primary drainage portal. We test the hypothesis that these changes are triggered by the adjoining ocean.Specifically, we employ an advanced numerical ice-flowmodel to simulate the effects of perturbations at the groundingline on PIG’s dynamics. The speed at which these changes are propagated upstream implies a tight coupling between ice-sheet interior and surrounding ocean. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
institution |
Open Polar |
collection |
University of Zurich (UZH): ZORA (Zurich Open Repository and Archive |
op_collection_id |
ftunivzuerich |
language |
English |
topic |
Institute of Geography 910 Geography & travel |
spellingShingle |
Institute of Geography 910 Geography & travel Payne, Antony J Vieli, Andreas Shepherd, Andrew P Wingham, Duncan J Rignot, Eric Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans |
topic_facet |
Institute of Geography 910 Geography & travel |
description |
A growing body of observational data suggests that PineIsland Glacier (PIG) is changing on decadal or shorter timescales. These changes may have far-reaching consequences for the future of the West Antarctic ice sheet (WAIS) and global sea levels because of PIG’s role as the icesheet’s primary drainage portal. We test the hypothesis that these changes are triggered by the adjoining ocean.Specifically, we employ an advanced numerical ice-flowmodel to simulate the effects of perturbations at the groundingline on PIG’s dynamics. The speed at which these changes are propagated upstream implies a tight coupling between ice-sheet interior and surrounding ocean. |
format |
Article in Journal/Newspaper |
author |
Payne, Antony J Vieli, Andreas Shepherd, Andrew P Wingham, Duncan J Rignot, Eric |
author_facet |
Payne, Antony J Vieli, Andreas Shepherd, Andrew P Wingham, Duncan J Rignot, Eric |
author_sort |
Payne, Antony J |
title |
Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans |
title_short |
Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans |
title_full |
Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans |
title_fullStr |
Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans |
title_full_unstemmed |
Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans |
title_sort |
recent dramatic thinning of largest west antarctic ice stream triggered by oceans |
publisher |
American Geophysical Union |
publishDate |
2004 |
url |
https://www.zora.uzh.ch/id/eprint/136437/ https://www.zora.uzh.ch/id/eprint/136437/1/2004_Payne_et_al-2004-Geophysical_Research_Letters.pdf https://doi.org/10.5167/uzh-136437 https://doi.org/10.1029/2004GL021284 |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_source |
Payne, Antony J; Vieli, Andreas; Shepherd, Andrew P; Wingham, Duncan J; Rignot, Eric (2004). Recent dramatic thinning of largest West Antarctic ice stream triggered by oceans. Geophysical Research Letters, 31(23):L23401. |
op_relation |
https://www.zora.uzh.ch/id/eprint/136437/1/2004_Payne_et_al-2004-Geophysical_Research_Letters.pdf doi:10.5167/uzh-136437 doi:10.1029/2004GL021284 urn:issn:0094-8276 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5167/uzh-13643710.1029/2004GL021284 |
_version_ |
1810495378166906880 |