Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016
After nearly three decades of observed increasing trends of Antarctic sea ice extent, in September-October-November 2016, there was a dramatic decrease. Here we document factors that contributed to that decrease. An atmosphere-only model with a specified positive convective heating anomaly in the ea...
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Online Access: | https://research.monash.edu/en/publications/16b4a3d7-d25a-48fe-a196-4ff05989bb68 https://doi.org/10.1038/s41467-018-07865-9 https://researchmgt.monash.edu/ws/files/260228581/259884047_oa.pdf http://www.scopus.com/inward/record.url?scp=85059341760&partnerID=8YFLogxK |
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ftmonashunicris:oai:monash.edu:publications/16b4a3d7-d25a-48fe-a196-4ff05989bb68 2024-06-23T07:47:55+00:00 Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016 Meehl, Gerald A. Arblaster, Julie M. Chung, Christine T.Y. Holland, Marika M. DuVivier, Alice Thompson, Lu Anne Yang, Dongxia Bitz, Cecilia M. 2019-01-01 application/pdf https://research.monash.edu/en/publications/16b4a3d7-d25a-48fe-a196-4ff05989bb68 https://doi.org/10.1038/s41467-018-07865-9 https://researchmgt.monash.edu/ws/files/260228581/259884047_oa.pdf http://www.scopus.com/inward/record.url?scp=85059341760&partnerID=8YFLogxK eng eng info:eu-repo/semantics/openAccess Meehl , G A , Arblaster , J M , Chung , C T Y , Holland , M M , DuVivier , A , Thompson , L A , Yang , D & Bitz , C M 2019 , ' Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016 ' , Nature Communications , vol. 10 , no. 1 , 14 . https://doi.org/10.1038/s41467-018-07865-9 article 2019 ftmonashunicris https://doi.org/10.1038/s41467-018-07865-9 2024-06-12T23:52:45Z After nearly three decades of observed increasing trends of Antarctic sea ice extent, in September-October-November 2016, there was a dramatic decrease. Here we document factors that contributed to that decrease. An atmosphere-only model with a specified positive convective heating anomaly in the eastern Indian/western Pacific Ocean, representing the record positive precipitation anomalies there in September-October-November 2016, produces an anomalous atmospheric Rossby wave response with mid- and high latitude surface wind anomalies that contribute to the decrease of Antarctic sea ice extent. The sustained decreases of Antarctic sea ice extent after late 2016 are associated with a warmer upper Southern Ocean. This is the culmination of a negative decadal trend of wind stress curl with positive Southern Annular Mode and negative Interdecadal Pacific Oscillation, Ekman suction that results in warmer water being moved upward in the column closer to the surface, a transition to positive Interdecadal Pacific Oscillation around 2014–2016, and negative Southern Annular Mode in late 2016. Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean Monash University Research Portal Antarctic Southern Ocean Pacific Indian Curl ENVELOPE(-63.071,-63.071,-70.797,-70.797) Nature Communications 10 1 |
institution |
Open Polar |
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Monash University Research Portal |
op_collection_id |
ftmonashunicris |
language |
English |
description |
After nearly three decades of observed increasing trends of Antarctic sea ice extent, in September-October-November 2016, there was a dramatic decrease. Here we document factors that contributed to that decrease. An atmosphere-only model with a specified positive convective heating anomaly in the eastern Indian/western Pacific Ocean, representing the record positive precipitation anomalies there in September-October-November 2016, produces an anomalous atmospheric Rossby wave response with mid- and high latitude surface wind anomalies that contribute to the decrease of Antarctic sea ice extent. The sustained decreases of Antarctic sea ice extent after late 2016 are associated with a warmer upper Southern Ocean. This is the culmination of a negative decadal trend of wind stress curl with positive Southern Annular Mode and negative Interdecadal Pacific Oscillation, Ekman suction that results in warmer water being moved upward in the column closer to the surface, a transition to positive Interdecadal Pacific Oscillation around 2014–2016, and negative Southern Annular Mode in late 2016. |
format |
Article in Journal/Newspaper |
author |
Meehl, Gerald A. Arblaster, Julie M. Chung, Christine T.Y. Holland, Marika M. DuVivier, Alice Thompson, Lu Anne Yang, Dongxia Bitz, Cecilia M. |
spellingShingle |
Meehl, Gerald A. Arblaster, Julie M. Chung, Christine T.Y. Holland, Marika M. DuVivier, Alice Thompson, Lu Anne Yang, Dongxia Bitz, Cecilia M. Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016 |
author_facet |
Meehl, Gerald A. Arblaster, Julie M. Chung, Christine T.Y. Holland, Marika M. DuVivier, Alice Thompson, Lu Anne Yang, Dongxia Bitz, Cecilia M. |
author_sort |
Meehl, Gerald A. |
title |
Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016 |
title_short |
Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016 |
title_full |
Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016 |
title_fullStr |
Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016 |
title_full_unstemmed |
Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016 |
title_sort |
sustained ocean changes contributed to sudden antarctic sea ice retreat in late 2016 |
publishDate |
2019 |
url |
https://research.monash.edu/en/publications/16b4a3d7-d25a-48fe-a196-4ff05989bb68 https://doi.org/10.1038/s41467-018-07865-9 https://researchmgt.monash.edu/ws/files/260228581/259884047_oa.pdf http://www.scopus.com/inward/record.url?scp=85059341760&partnerID=8YFLogxK |
long_lat |
ENVELOPE(-63.071,-63.071,-70.797,-70.797) |
geographic |
Antarctic Southern Ocean Pacific Indian Curl |
geographic_facet |
Antarctic Southern Ocean Pacific Indian Curl |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_source |
Meehl , G A , Arblaster , J M , Chung , C T Y , Holland , M M , DuVivier , A , Thompson , L A , Yang , D & Bitz , C M 2019 , ' Sustained ocean changes contributed to sudden Antarctic sea ice retreat in late 2016 ' , Nature Communications , vol. 10 , no. 1 , 14 . https://doi.org/10.1038/s41467-018-07865-9 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/s41467-018-07865-9 |
container_title |
Nature Communications |
container_volume |
10 |
container_issue |
1 |
_version_ |
1802638156899549184 |