Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats
The northern Antarctic Peninsula (nAP, < 66° S) is one of the most rapidly changing glaciated regions on earth, yet the spatial patterns of its ice mass loss at the glacier basin scale have to date been poorly documented. We use satellite laser altimetry and satellite stereo-image topography span...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:5648da1a1e1f494e934ed860267eee2a 2023-05-15T14:00:45+02:00 Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats T. A. Scambos E. Berthier T. Haran C. A. Shuman A. J. Cook S. R. M. Ligtenberg J. Bohlander 2014-11-01 https://doi.org/10.5194/tc-8-2135-2014 http://www.the-cryosphere.net/8/2135/2014/tc-8-2135-2014.pdf https://doaj.org/article/5648da1a1e1f494e934ed860267eee2a en eng Copernicus Publications 1994-0416 1994-0424 doi:10.5194/tc-8-2135-2014 http://www.the-cryosphere.net/8/2135/2014/tc-8-2135-2014.pdf https://doaj.org/article/5648da1a1e1f494e934ed860267eee2a undefined The Cryosphere, Vol 8, Iss 6, Pp 2135-2145 (2014) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2014 fttriple https://doi.org/10.5194/tc-8-2135-2014 2023-01-22T17:49:54Z The northern Antarctic Peninsula (nAP, < 66° S) is one of the most rapidly changing glaciated regions on earth, yet the spatial patterns of its ice mass loss at the glacier basin scale have to date been poorly documented. We use satellite laser altimetry and satellite stereo-image topography spanning 2001–2010, but primarily 2003–2008, to map ice elevation change and infer mass changes for 33 glacier basins covering the mainland and most large islands in the nAP. Rates of ice volume and ice mass change are 27.7± 8.6 km3 a−1 and 24.9± 7.8 Gt a−1, equal to −0.73 m a−1 w.e. for the study area. Mass loss is the highest for eastern glaciers affected by major ice shelf collapses in 1995 and 2002, where twelve glaciers account for 60% of the total imbalance. However, losses at smaller rates occur throughout the nAP, at both high and low elevation, despite increased snow accumulation along the western coast and ridge crest. We interpret the widespread mass loss to be driven by decades of ice front retreats on both sides of the nAP, and extended throughout the ice sheet due to the propagation of kinematic waves triggered at the fronts into the interior. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf The Cryosphere Unknown Antarctic Antarctic Peninsula The Cryosphere 8 6 2135 2145 |
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English |
topic |
geo envir |
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geo envir T. A. Scambos E. Berthier T. Haran C. A. Shuman A. J. Cook S. R. M. Ligtenberg J. Bohlander Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats |
topic_facet |
geo envir |
description |
The northern Antarctic Peninsula (nAP, < 66° S) is one of the most rapidly changing glaciated regions on earth, yet the spatial patterns of its ice mass loss at the glacier basin scale have to date been poorly documented. We use satellite laser altimetry and satellite stereo-image topography spanning 2001–2010, but primarily 2003–2008, to map ice elevation change and infer mass changes for 33 glacier basins covering the mainland and most large islands in the nAP. Rates of ice volume and ice mass change are 27.7± 8.6 km3 a−1 and 24.9± 7.8 Gt a−1, equal to −0.73 m a−1 w.e. for the study area. Mass loss is the highest for eastern glaciers affected by major ice shelf collapses in 1995 and 2002, where twelve glaciers account for 60% of the total imbalance. However, losses at smaller rates occur throughout the nAP, at both high and low elevation, despite increased snow accumulation along the western coast and ridge crest. We interpret the widespread mass loss to be driven by decades of ice front retreats on both sides of the nAP, and extended throughout the ice sheet due to the propagation of kinematic waves triggered at the fronts into the interior. |
format |
Article in Journal/Newspaper |
author |
T. A. Scambos E. Berthier T. Haran C. A. Shuman A. J. Cook S. R. M. Ligtenberg J. Bohlander |
author_facet |
T. A. Scambos E. Berthier T. Haran C. A. Shuman A. J. Cook S. R. M. Ligtenberg J. Bohlander |
author_sort |
T. A. Scambos |
title |
Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats |
title_short |
Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats |
title_full |
Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats |
title_fullStr |
Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats |
title_full_unstemmed |
Detailed ice loss pattern in the northern Antarctic Peninsula: widespread decline driven by ice front retreats |
title_sort |
detailed ice loss pattern in the northern antarctic peninsula: widespread decline driven by ice front retreats |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/tc-8-2135-2014 http://www.the-cryosphere.net/8/2135/2014/tc-8-2135-2014.pdf https://doaj.org/article/5648da1a1e1f494e934ed860267eee2a |
geographic |
Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice Sheet Ice Shelf The Cryosphere |
op_source |
The Cryosphere, Vol 8, Iss 6, Pp 2135-2145 (2014) |
op_relation |
1994-0416 1994-0424 doi:10.5194/tc-8-2135-2014 http://www.the-cryosphere.net/8/2135/2014/tc-8-2135-2014.pdf https://doaj.org/article/5648da1a1e1f494e934ed860267eee2a |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-8-2135-2014 |
container_title |
The Cryosphere |
container_volume |
8 |
container_issue |
6 |
container_start_page |
2135 |
op_container_end_page |
2145 |
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1766270097664507904 |