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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Online Access: | https://hdl.handle.net/11250/2738467 https://doi.org/10.5194/tc-14-693-2020 |
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ftunivbergen:oai:bora.uib.no:11250/2738467 2023-05-15T14:50:56+02:00 The Arctic sea ice extent change connected to Pacific decadal variability Yang, Xiao-Ying Wang, Guihua Keenlyside, Noel 2020 application/pdf https://hdl.handle.net/11250/2738467 https://doi.org/10.5194/tc-14-693-2020 eng eng Copernicus Publications Notur/NorStore: NS9039K EU/727852 Notur/NorStore: NN9039K Nordforsk: 76654 urn:issn:1994-0416 https://hdl.handle.net/11250/2738467 https://doi.org/10.5194/tc-14-693-2020 cristin:1856655 The Cryosphere. 2020, 14 (2), 693–708. Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright Author(s) 2020. The Cryosphere 14 693-708 2 Journal article Peer reviewed 2020 ftunivbergen https://doi.org/10.5194/tc-14-693-2020 2023-03-14T17:38:40Z 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. publishedVersion Article in Journal/Newspaper Arctic Bering Sea Sea ice The Cryosphere University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Bering Sea Curl ENVELOPE(-63.071,-63.071,-70.797,-70.797) Pacific The Cryosphere 14 2 693 708 |
institution |
Open Polar |
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University of Bergen: Bergen Open Research Archive (BORA-UiB) |
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ftunivbergen |
language |
English |
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. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Yang, Xiao-Ying Wang, Guihua Keenlyside, Noel |
spellingShingle |
Yang, Xiao-Ying Wang, Guihua Keenlyside, Noel The Arctic sea ice extent change connected to Pacific decadal variability |
author_facet |
Yang, Xiao-Ying Wang, Guihua Keenlyside, Noel |
author_sort |
Yang, Xiao-Ying |
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://hdl.handle.net/11250/2738467 https://doi.org/10.5194/tc-14-693-2020 |
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 14 693-708 2 |
op_relation |
Notur/NorStore: NS9039K EU/727852 Notur/NorStore: NN9039K Nordforsk: 76654 urn:issn:1994-0416 https://hdl.handle.net/11250/2738467 https://doi.org/10.5194/tc-14-693-2020 cristin:1856655 The Cryosphere. 2020, 14 (2), 693–708. |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no Copyright Author(s) 2020. |
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 |
_version_ |
1766321989514952704 |