Moisture transport and Antarctic sea ice: austral spring 2016 event
In austral spring 2016 the Antarctic region experienced anomalous sea ice retreat in all sectors, with sea ice extent in October and November 2016 being the lowest in the Southern Hemisphere over the observational period (1979–present). The extreme sea ice retreat was accompanied by widespread warmi...
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ftcopernicus:oai:publications.copernicus.org:esd63498 2023-05-15T13:55:28+02:00 Moisture transport and Antarctic sea ice: austral spring 2016 event Ionita, Monica Scholz, Patrick Grosfeld, Klaus Treffeisen, Renate 2018-09-27 application/pdf https://doi.org/10.5194/esd-9-939-2018 https://esd.copernicus.org/articles/9/939/2018/ eng eng doi:10.5194/esd-9-939-2018 https://esd.copernicus.org/articles/9/939/2018/ eISSN: 2190-4987 Text 2018 ftcopernicus https://doi.org/10.5194/esd-9-939-2018 2020-07-20T16:23:13Z In austral spring 2016 the Antarctic region experienced anomalous sea ice retreat in all sectors, with sea ice extent in October and November 2016 being the lowest in the Southern Hemisphere over the observational period (1979–present). The extreme sea ice retreat was accompanied by widespread warming along the coastal areas as well as in the interior of the Antarctic continent. This exceptional event occurred along with a strong negative phase of the Southern Annular Mode (SAM) and the moistest and warmest spring on record, over large areas covering the Indian Ocean, the Ross Sea and the Weddell Sea. In October 2016, the positive anomalies of the totally integrated water vapor (IWV) and 2 m air temperature (T2m) over the Indian Ocean, western Pacific, Bellingshausen Sea and southern part of Ross Sea were unprecedented in the last 39 years. In October and November 2016, when the largest magnitude of negative daily sea ice concentration anomalies was observed, repeated episodes of poleward advection of warm and moist air took place. These results suggest the importance of moist and warm air intrusions into the Antarctic region as one of the main contributors to this exceptional sea ice retreat event. Text Antarc* Antarctic Bellingshausen Sea Ross Sea Sea ice Weddell Sea Copernicus Publications: E-Journals Antarctic Austral Bellingshausen Sea Indian Pacific Ross Sea The Antarctic Weddell Weddell Sea Earth System Dynamics 9 3 939 954 |
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Copernicus Publications: E-Journals |
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ftcopernicus |
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English |
description |
In austral spring 2016 the Antarctic region experienced anomalous sea ice retreat in all sectors, with sea ice extent in October and November 2016 being the lowest in the Southern Hemisphere over the observational period (1979–present). The extreme sea ice retreat was accompanied by widespread warming along the coastal areas as well as in the interior of the Antarctic continent. This exceptional event occurred along with a strong negative phase of the Southern Annular Mode (SAM) and the moistest and warmest spring on record, over large areas covering the Indian Ocean, the Ross Sea and the Weddell Sea. In October 2016, the positive anomalies of the totally integrated water vapor (IWV) and 2 m air temperature (T2m) over the Indian Ocean, western Pacific, Bellingshausen Sea and southern part of Ross Sea were unprecedented in the last 39 years. In October and November 2016, when the largest magnitude of negative daily sea ice concentration anomalies was observed, repeated episodes of poleward advection of warm and moist air took place. These results suggest the importance of moist and warm air intrusions into the Antarctic region as one of the main contributors to this exceptional sea ice retreat event. |
format |
Text |
author |
Ionita, Monica Scholz, Patrick Grosfeld, Klaus Treffeisen, Renate |
spellingShingle |
Ionita, Monica Scholz, Patrick Grosfeld, Klaus Treffeisen, Renate Moisture transport and Antarctic sea ice: austral spring 2016 event |
author_facet |
Ionita, Monica Scholz, Patrick Grosfeld, Klaus Treffeisen, Renate |
author_sort |
Ionita, Monica |
title |
Moisture transport and Antarctic sea ice: austral spring 2016 event |
title_short |
Moisture transport and Antarctic sea ice: austral spring 2016 event |
title_full |
Moisture transport and Antarctic sea ice: austral spring 2016 event |
title_fullStr |
Moisture transport and Antarctic sea ice: austral spring 2016 event |
title_full_unstemmed |
Moisture transport and Antarctic sea ice: austral spring 2016 event |
title_sort |
moisture transport and antarctic sea ice: austral spring 2016 event |
publishDate |
2018 |
url |
https://doi.org/10.5194/esd-9-939-2018 https://esd.copernicus.org/articles/9/939/2018/ |
geographic |
Antarctic Austral Bellingshausen Sea Indian Pacific Ross Sea The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Austral Bellingshausen Sea Indian Pacific Ross Sea The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Bellingshausen Sea Ross Sea Sea ice Weddell Sea |
genre_facet |
Antarc* Antarctic Bellingshausen Sea Ross Sea Sea ice Weddell Sea |
op_source |
eISSN: 2190-4987 |
op_relation |
doi:10.5194/esd-9-939-2018 https://esd.copernicus.org/articles/9/939/2018/ |
op_doi |
https://doi.org/10.5194/esd-9-939-2018 |
container_title |
Earth System Dynamics |
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9 |
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3 |
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939 |
op_container_end_page |
954 |
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1766262130512756736 |