Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years
In recent decades, seven out of twelve ice shelves around the Antarctic Peninsula (AP) have either retreated significantly or have been almost entirely lost. At least some of these retreats have been shown to be unusual within the context of the Holocene and have been widely attributed to recent atm...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:e9aacc0192294f28a94e5f6d843b220e 2023-05-15T13:41:27+02:00 Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years A. J. Cook D. G. Vaughan 2010-02-01 http://www.the-cryosphere.net/4/77/2010/tc-4-77-2010.pdf https://doaj.org/article/e9aacc0192294f28a94e5f6d843b220e en eng Copernicus Publications 1994-0416 1994-0424 http://www.the-cryosphere.net/4/77/2010/tc-4-77-2010.pdf https://doaj.org/article/e9aacc0192294f28a94e5f6d843b220e undefined The Cryosphere, Vol 4, Iss 1, Pp 77-98 (2010) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2010 fttriple 2023-01-22T19:23:37Z In recent decades, seven out of twelve ice shelves around the Antarctic Peninsula (AP) have either retreated significantly or have been almost entirely lost. At least some of these retreats have been shown to be unusual within the context of the Holocene and have been widely attributed to recent atmospheric and oceanic changes. To date, measurements of the area of ice shelves on the AP have either been approximated, or calculated for individual shelves over dissimilar time intervals. Here we present a new dataset containing up-to-date and consistent area calculations for each of the twelve ice shelves on the AP over the past five decades. The results reveal an overall reduction in total ice-shelf area by over 28 000 km2 since the beginning of the period. Individual ice shelves show different rates of retreat, ranging from slow but progressive retreat to abrupt collapse. We discuss the pertinent features of each ice shelf and also broad spatial and temporal patterns in the timing and rate of retreat. We believe that an understanding of this diversity and what it implies about the underlying dynamics and control will provide the best foundation for developing a reliable predictive skill for ice-shelf change. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Ice Shelf Ice Shelves The Cryosphere Unknown Antarctic Antarctic Peninsula The Antarctic |
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language |
English |
topic |
geo envir |
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geo envir A. J. Cook D. G. Vaughan Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years |
topic_facet |
geo envir |
description |
In recent decades, seven out of twelve ice shelves around the Antarctic Peninsula (AP) have either retreated significantly or have been almost entirely lost. At least some of these retreats have been shown to be unusual within the context of the Holocene and have been widely attributed to recent atmospheric and oceanic changes. To date, measurements of the area of ice shelves on the AP have either been approximated, or calculated for individual shelves over dissimilar time intervals. Here we present a new dataset containing up-to-date and consistent area calculations for each of the twelve ice shelves on the AP over the past five decades. The results reveal an overall reduction in total ice-shelf area by over 28 000 km2 since the beginning of the period. Individual ice shelves show different rates of retreat, ranging from slow but progressive retreat to abrupt collapse. We discuss the pertinent features of each ice shelf and also broad spatial and temporal patterns in the timing and rate of retreat. We believe that an understanding of this diversity and what it implies about the underlying dynamics and control will provide the best foundation for developing a reliable predictive skill for ice-shelf change. |
format |
Article in Journal/Newspaper |
author |
A. J. Cook D. G. Vaughan |
author_facet |
A. J. Cook D. G. Vaughan |
author_sort |
A. J. Cook |
title |
Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years |
title_short |
Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years |
title_full |
Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years |
title_fullStr |
Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years |
title_full_unstemmed |
Overview of areal changes of the ice shelves on the Antarctic Peninsula over the past 50 years |
title_sort |
overview of areal changes of the ice shelves on the antarctic peninsula over the past 50 years |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
http://www.the-cryosphere.net/4/77/2010/tc-4-77-2010.pdf https://doaj.org/article/e9aacc0192294f28a94e5f6d843b220e |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Ice Shelf Ice Shelves The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Ice Shelf Ice Shelves The Cryosphere |
op_source |
The Cryosphere, Vol 4, Iss 1, Pp 77-98 (2010) |
op_relation |
1994-0416 1994-0424 http://www.the-cryosphere.net/4/77/2010/tc-4-77-2010.pdf https://doaj.org/article/e9aacc0192294f28a94e5f6d843b220e |
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