The Arctic sea ice extent change connected to Pacific decadal variability
After an unprecedented retreat, the total Arctic sea ice cover for the post-2007 period is characterized by low extent and a remarkable increase in annual cycle amplitude. We have identified the leading role of spring Bering Sea ice in explaining the changes in the amplitude of the annual cycle of t...
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ftdoajarticles:oai:doaj.org/article:6e26e5aebf2a418fa7b379435312bd5c 2023-05-15T14:51:35+02:00 The Arctic sea ice extent change connected to Pacific decadal variability X.-Y. Yang G. Wang N. Keenlyside 2020-02-01T00:00:00Z https://doi.org/10.5194/tc-14-693-2020 https://doaj.org/article/6e26e5aebf2a418fa7b379435312bd5c EN eng Copernicus Publications https://www.the-cryosphere.net/14/693/2020/tc-14-693-2020.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-14-693-2020 1994-0416 1994-0424 https://doaj.org/article/6e26e5aebf2a418fa7b379435312bd5c The Cryosphere, Vol 14, Pp 693-708 (2020) Environmental sciences GE1-350 Geology QE1-996.5 article 2020 ftdoajarticles https://doi.org/10.5194/tc-14-693-2020 2022-12-31T12:02:44Z After an unprecedented retreat, the total Arctic sea ice cover for the post-2007 period is characterized by low extent and a remarkable increase in annual cycle amplitude. We have identified the leading role of spring Bering Sea ice in explaining the changes in the amplitude of the annual cycle of total Arctic sea ice. In particular, these changes are related to the recent occurrence of multiyear variability in spring Bering Sea ice extent. This is due to the phase-locking of the North Pacific Gyre Oscillation (NPGO) and the Pacific Decadal Oscillation (PDO) after about 2007, with a correlation coefficient reaching −0.6 . Furthermore, there emerge notable changes in the sea level pressure and sea surface temperature patterns associated with the NPGO in the recent decade. After 2007, the NPGO is related to a quadrupole of sea level pressure (SLP) anomalies that is associated with the wind stress curl and Ekman pumping rate anomalies in the Bering deep basin; these account for the change in Bering Sea subsurface variability that contribute to the decadal oscillation of the spring Bering Sea ice extent. Article in Journal/Newspaper Arctic Bering Sea Sea ice The Cryosphere Directory of Open Access Journals: DOAJ Articles Arctic Bering Sea Curl ENVELOPE(-63.071,-63.071,-70.797,-70.797) Pacific The Cryosphere 14 2 693 708 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 X.-Y. Yang G. Wang N. Keenlyside The Arctic sea ice extent change connected to Pacific decadal variability |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
After an unprecedented retreat, the total Arctic sea ice cover for the post-2007 period is characterized by low extent and a remarkable increase in annual cycle amplitude. We have identified the leading role of spring Bering Sea ice in explaining the changes in the amplitude of the annual cycle of total Arctic sea ice. In particular, these changes are related to the recent occurrence of multiyear variability in spring Bering Sea ice extent. This is due to the phase-locking of the North Pacific Gyre Oscillation (NPGO) and the Pacific Decadal Oscillation (PDO) after about 2007, with a correlation coefficient reaching −0.6 . Furthermore, there emerge notable changes in the sea level pressure and sea surface temperature patterns associated with the NPGO in the recent decade. After 2007, the NPGO is related to a quadrupole of sea level pressure (SLP) anomalies that is associated with the wind stress curl and Ekman pumping rate anomalies in the Bering deep basin; these account for the change in Bering Sea subsurface variability that contribute to the decadal oscillation of the spring Bering Sea ice extent. |
format |
Article in Journal/Newspaper |
author |
X.-Y. Yang G. Wang N. Keenlyside |
author_facet |
X.-Y. Yang G. Wang N. Keenlyside |
author_sort |
X.-Y. Yang |
title |
The Arctic sea ice extent change connected to Pacific decadal variability |
title_short |
The Arctic sea ice extent change connected to Pacific decadal variability |
title_full |
The Arctic sea ice extent change connected to Pacific decadal variability |
title_fullStr |
The Arctic sea ice extent change connected to Pacific decadal variability |
title_full_unstemmed |
The Arctic sea ice extent change connected to Pacific decadal variability |
title_sort |
arctic sea ice extent change connected to pacific decadal variability |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/tc-14-693-2020 https://doaj.org/article/6e26e5aebf2a418fa7b379435312bd5c |
long_lat |
ENVELOPE(-63.071,-63.071,-70.797,-70.797) |
geographic |
Arctic Bering Sea Curl Pacific |
geographic_facet |
Arctic Bering Sea Curl Pacific |
genre |
Arctic Bering Sea Sea ice The Cryosphere |
genre_facet |
Arctic Bering Sea Sea ice The Cryosphere |
op_source |
The Cryosphere, Vol 14, Pp 693-708 (2020) |
op_relation |
https://www.the-cryosphere.net/14/693/2020/tc-14-693-2020.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-14-693-2020 1994-0416 1994-0424 https://doaj.org/article/6e26e5aebf2a418fa7b379435312bd5c |
op_doi |
https://doi.org/10.5194/tc-14-693-2020 |
container_title |
The Cryosphere |
container_volume |
14 |
container_issue |
2 |
container_start_page |
693 |
op_container_end_page |
708 |
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1766322705099915264 |