Ice core reconstruction of sea ice change in the Amundsen-Ross Seas since 1702 A.D
Antarctic sea ice has been increasing in recent decades, but with strong regional differences in the expression of sea ice change. Declining sea ice in the Bellingshausen Sea since 1979 (the satellite era) has been linked to the observed warming on the Antarctic Peninsula, while the Ross Sea sector...
Published in: | Geophysical Research Letters |
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American Geophysical Union (AGU)
2016
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Online Access: | http://hdl.handle.net/1885/111446 https://doi.org/10.1002/2016GL068130 |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/111446 2023-05-15T13:49:20+02:00 Ice core reconstruction of sea ice change in the Amundsen-Ross Seas since 1702 A.D Thomas, Elizabeth R. Abram, Nerilie J. 2016-12-21T02:17:41Z pages http://hdl.handle.net/1885/111446 https://doi.org/10.1002/2016GL068130 unknown American Geophysical Union (AGU) http://purl.org/au-research/grants/arc/DP110101161 0094-8276 http://hdl.handle.net/1885/111446 doi:10.1002/2016GL068130 http://www.sherpa.ac.uk/romeo/issn/0094-8276/ Publisher's version/PDF must be used in Institutional Repository 6 months after publication (Sherpa/Romeo as of 21/12/2016). Not subject to U.S. copyright. Geophysical Research Letters Antarctic Peninsula sea ice Bellingshausen Sea change 1979 warming Ross Sea increase decline West Antarctica methansulphonic acid satellite Journal article 2016 ftanucanberra https://doi.org/10.1002/2016GL068130 2017-04-10T23:41:18Z Antarctic sea ice has been increasing in recent decades, but with strong regional differences in the expression of sea ice change. Declining sea ice in the Bellingshausen Sea since 1979 (the satellite era) has been linked to the observed warming on the Antarctic Peninsula, while the Ross Sea sector has seen a marked increase in sea ice during this period. Here we present a 308 year record of methansulphonic acid from coastal West Antarctica, representing sea ice conditions in the Amundsen-Ross Sea. We demonstrate that the recent increase in sea ice in this region is part of a longer trend, with an estimated ~1° northward expansion in winter sea ice extent (SIE) during the twentieth century and a total expansion of ~1.3° since 1702. The greatest reconstructed SIE occurred during the mid-1990s, with five of the past 30 years considered exceptional in the context of the past three centuries. The research was funded by the Natural Environment Research Council. Grant Number: NE/J020710/1 and the Australian Research Council. Grant Number: DP110101161. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea ice core Ross Sea Sea ice West Antarctica Australian National University: ANU Digital Collections Antarctic Antarctic Peninsula Bellingshausen Sea Ross Sea The Antarctic West Antarctica Geophysical Research Letters 43 10 5309 5317 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Antarctic Peninsula sea ice Bellingshausen Sea change 1979 warming Ross Sea increase decline West Antarctica methansulphonic acid satellite |
spellingShingle |
Antarctic Peninsula sea ice Bellingshausen Sea change 1979 warming Ross Sea increase decline West Antarctica methansulphonic acid satellite Thomas, Elizabeth R. Abram, Nerilie J. Ice core reconstruction of sea ice change in the Amundsen-Ross Seas since 1702 A.D |
topic_facet |
Antarctic Peninsula sea ice Bellingshausen Sea change 1979 warming Ross Sea increase decline West Antarctica methansulphonic acid satellite |
description |
Antarctic sea ice has been increasing in recent decades, but with strong regional differences in the expression of sea ice change. Declining sea ice in the Bellingshausen Sea since 1979 (the satellite era) has been linked to the observed warming on the Antarctic Peninsula, while the Ross Sea sector has seen a marked increase in sea ice during this period. Here we present a 308 year record of methansulphonic acid from coastal West Antarctica, representing sea ice conditions in the Amundsen-Ross Sea. We demonstrate that the recent increase in sea ice in this region is part of a longer trend, with an estimated ~1° northward expansion in winter sea ice extent (SIE) during the twentieth century and a total expansion of ~1.3° since 1702. The greatest reconstructed SIE occurred during the mid-1990s, with five of the past 30 years considered exceptional in the context of the past three centuries. The research was funded by the Natural Environment Research Council. Grant Number: NE/J020710/1 and the Australian Research Council. Grant Number: DP110101161. |
format |
Article in Journal/Newspaper |
author |
Thomas, Elizabeth R. Abram, Nerilie J. |
author_facet |
Thomas, Elizabeth R. Abram, Nerilie J. |
author_sort |
Thomas, Elizabeth R. |
title |
Ice core reconstruction of sea ice change in the Amundsen-Ross Seas since 1702 A.D |
title_short |
Ice core reconstruction of sea ice change in the Amundsen-Ross Seas since 1702 A.D |
title_full |
Ice core reconstruction of sea ice change in the Amundsen-Ross Seas since 1702 A.D |
title_fullStr |
Ice core reconstruction of sea ice change in the Amundsen-Ross Seas since 1702 A.D |
title_full_unstemmed |
Ice core reconstruction of sea ice change in the Amundsen-Ross Seas since 1702 A.D |
title_sort |
ice core reconstruction of sea ice change in the amundsen-ross seas since 1702 a.d |
publisher |
American Geophysical Union (AGU) |
publishDate |
2016 |
url |
http://hdl.handle.net/1885/111446 https://doi.org/10.1002/2016GL068130 |
geographic |
Antarctic Antarctic Peninsula Bellingshausen Sea Ross Sea The Antarctic West Antarctica |
geographic_facet |
Antarctic Antarctic Peninsula Bellingshausen Sea Ross Sea The Antarctic West Antarctica |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea ice core Ross Sea Sea ice West Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Bellingshausen Sea ice core Ross Sea Sea ice West Antarctica |
op_source |
Geophysical Research Letters |
op_relation |
http://purl.org/au-research/grants/arc/DP110101161 0094-8276 http://hdl.handle.net/1885/111446 doi:10.1002/2016GL068130 |
op_rights |
http://www.sherpa.ac.uk/romeo/issn/0094-8276/ Publisher's version/PDF must be used in Institutional Repository 6 months after publication (Sherpa/Romeo as of 21/12/2016). Not subject to U.S. copyright. |
op_doi |
https://doi.org/10.1002/2016GL068130 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
10 |
container_start_page |
5309 |
op_container_end_page |
5317 |
_version_ |
1766251191498440704 |