The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming
This study assesses the impact of a large 2010 calving event on the current and future stability of Petermann Glacier, Greenland, and ascertains the glacier’s interaction with different components of the climate and ocean system. We use a numerical ice-flow model that captures the major aspects of t...
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International Glaciological Society
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ftunivzuerich:oai:www.zora.uzh.ch:136094 2024-10-13T14:07:25+00:00 The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming Nick, F M Luckman, Adrian Vieli, Andreas Van der Veen, C J van As, Dirk van de Wal, R S W Pattyn, Frank Hubbard, A L Floricioiu, D 2012 application/pdf https://www.zora.uzh.ch/id/eprint/136094/ https://www.zora.uzh.ch/id/eprint/136094/1/2012_Nick2012_JGLAC.pdf https://doi.org/10.5167/uzh-136094 https://doi.org/10.3189/2012JoG11J242 eng eng International Glaciological Society https://www.zora.uzh.ch/id/eprint/136094/1/2012_Nick2012_JGLAC.pdf doi:10.5167/uzh-136094 doi:10.3189/2012JoG11J242 urn:issn:0022-1430 info:eu-repo/semantics/openAccess Nick, F M; Luckman, Adrian; Vieli, Andreas; Van der Veen, C J; van As, Dirk; van de Wal, R S W; Pattyn, Frank; Hubbard, A L; Floricioiu, D (2012). The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming. Journal of Glaciology, 58(208):229-239. Institute of Geography 910 Geography & travel Journal Article PeerReviewed info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftunivzuerich https://doi.org/10.5167/uzh-13609410.3189/2012JoG11J242 2024-09-18T00:49:48Z This study assesses the impact of a large 2010 calving event on the current and future stability of Petermann Glacier, Greenland, and ascertains the glacier’s interaction with different components of the climate and ocean system. We use a numerical ice-flow model that captures the major aspects of the glacier’s mass budget, the resistive forces controlling glacier flow, and includes dynamic calving. Satellite observations and model results show that the recent break-off of 25% of the floating tongue did not result in a significant glacier speed-up due to the low lateral resistance of this relatively wide and thin ice tongue. We demonstrate that seasonal speed-up at Petermann Glacier is mainly driven by meltwater lubrication rather than freeze-up conditions in the fjord. Results also show that sub-shelf ocean melt may have a profound effect on the future stability of Petermann Glacier, emphasizing the urgent need for more observations, and a better understanding of fjord temperature variability and circulation. Article in Journal/Newspaper glacier Greenland Journal of Glaciology Petermann glacier University of Zurich (UZH): ZORA (Zurich Open Repository and Archive Greenland |
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 Nick, F M Luckman, Adrian Vieli, Andreas Van der Veen, C J van As, Dirk van de Wal, R S W Pattyn, Frank Hubbard, A L Floricioiu, D The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming |
topic_facet |
Institute of Geography 910 Geography & travel |
description |
This study assesses the impact of a large 2010 calving event on the current and future stability of Petermann Glacier, Greenland, and ascertains the glacier’s interaction with different components of the climate and ocean system. We use a numerical ice-flow model that captures the major aspects of the glacier’s mass budget, the resistive forces controlling glacier flow, and includes dynamic calving. Satellite observations and model results show that the recent break-off of 25% of the floating tongue did not result in a significant glacier speed-up due to the low lateral resistance of this relatively wide and thin ice tongue. We demonstrate that seasonal speed-up at Petermann Glacier is mainly driven by meltwater lubrication rather than freeze-up conditions in the fjord. Results also show that sub-shelf ocean melt may have a profound effect on the future stability of Petermann Glacier, emphasizing the urgent need for more observations, and a better understanding of fjord temperature variability and circulation. |
format |
Article in Journal/Newspaper |
author |
Nick, F M Luckman, Adrian Vieli, Andreas Van der Veen, C J van As, Dirk van de Wal, R S W Pattyn, Frank Hubbard, A L Floricioiu, D |
author_facet |
Nick, F M Luckman, Adrian Vieli, Andreas Van der Veen, C J van As, Dirk van de Wal, R S W Pattyn, Frank Hubbard, A L Floricioiu, D |
author_sort |
Nick, F M |
title |
The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming |
title_short |
The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming |
title_full |
The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming |
title_fullStr |
The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming |
title_full_unstemmed |
The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming |
title_sort |
response of petermann glacier, greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming |
publisher |
International Glaciological Society |
publishDate |
2012 |
url |
https://www.zora.uzh.ch/id/eprint/136094/ https://www.zora.uzh.ch/id/eprint/136094/1/2012_Nick2012_JGLAC.pdf https://doi.org/10.5167/uzh-136094 https://doi.org/10.3189/2012JoG11J242 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Journal of Glaciology Petermann glacier |
genre_facet |
glacier Greenland Journal of Glaciology Petermann glacier |
op_source |
Nick, F M; Luckman, Adrian; Vieli, Andreas; Van der Veen, C J; van As, Dirk; van de Wal, R S W; Pattyn, Frank; Hubbard, A L; Floricioiu, D (2012). The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming. Journal of Glaciology, 58(208):229-239. |
op_relation |
https://www.zora.uzh.ch/id/eprint/136094/1/2012_Nick2012_JGLAC.pdf doi:10.5167/uzh-136094 doi:10.3189/2012JoG11J242 urn:issn:0022-1430 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5167/uzh-13609410.3189/2012JoG11J242 |
_version_ |
1812813708754157568 |