Role of SST in Seasonal Western North Pacific Anomalous Anticyclone: Insights From AMIP Simulations in CMIP6
Abstract The western North Pacific anticyclone (WNPAC) significantly influences the East Asian climate and is modulated by tropical sea surface temperature (SST). This study uses 142 AMIP simulations from 33 Coupled Model Intercomparison Project (CMIP6) models to quantify the contributions of SST to...
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ftdoajarticles:oai:doaj.org/article:5dbce05cb70b42d9b5d28e01079ae440 2024-09-15T18:23:17+00:00 Role of SST in Seasonal Western North Pacific Anomalous Anticyclone: Insights From AMIP Simulations in CMIP6 Shuyan Wu Wenshi Lin Lu Dong Fengfei Song Song Yang Zhiyuan Lu Xiaoming Hu 2024-02-01T00:00:00Z https://doi.org/10.1029/2023GL107080 https://doaj.org/article/5dbce05cb70b42d9b5d28e01079ae440 EN eng Wiley https://doi.org/10.1029/2023GL107080 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL107080 https://doaj.org/article/5dbce05cb70b42d9b5d28e01079ae440 Geophysical Research Letters, Vol 51, Iss 3, Pp n/a-n/a (2024) Geophysics. Cosmic physics QC801-809 article 2024 ftdoajarticles https://doi.org/10.1029/2023GL107080 2024-08-05T17:49:23Z Abstract The western North Pacific anticyclone (WNPAC) significantly influences the East Asian climate and is modulated by tropical sea surface temperature (SST). This study uses 142 AMIP simulations from 33 Coupled Model Intercomparison Project (CMIP6) models to quantify the contributions of SST to the interannual variability of the WNPAC. SST forcing accounts for 66%, 77%, and 49% of the WNPAC variance in winter, spring, and summer, respectively. The persistence of the WNPAC depends on the relaying effects of SST in three tropical oceans. CMIP6 models exhibit excessive precipitation response to the Pacific SST, leading to an overestimated (underestimated) Pacific (Indian Ocean) effect in modulating the summer WNPAC. Sensitivity experiments with an atmospheric model confirm the crucial role of the Pacific in regulating the WNPAC interannual variation and the contribution from the tropical North Atlantic in spring. The tropical Indian Ocean only exerts a minor impact on the WNPAC when excluding the interactions with other oceans. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Geophysical Research Letters 51 3 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Geophysics. Cosmic physics QC801-809 Shuyan Wu Wenshi Lin Lu Dong Fengfei Song Song Yang Zhiyuan Lu Xiaoming Hu Role of SST in Seasonal Western North Pacific Anomalous Anticyclone: Insights From AMIP Simulations in CMIP6 |
topic_facet |
Geophysics. Cosmic physics QC801-809 |
description |
Abstract The western North Pacific anticyclone (WNPAC) significantly influences the East Asian climate and is modulated by tropical sea surface temperature (SST). This study uses 142 AMIP simulations from 33 Coupled Model Intercomparison Project (CMIP6) models to quantify the contributions of SST to the interannual variability of the WNPAC. SST forcing accounts for 66%, 77%, and 49% of the WNPAC variance in winter, spring, and summer, respectively. The persistence of the WNPAC depends on the relaying effects of SST in three tropical oceans. CMIP6 models exhibit excessive precipitation response to the Pacific SST, leading to an overestimated (underestimated) Pacific (Indian Ocean) effect in modulating the summer WNPAC. Sensitivity experiments with an atmospheric model confirm the crucial role of the Pacific in regulating the WNPAC interannual variation and the contribution from the tropical North Atlantic in spring. The tropical Indian Ocean only exerts a minor impact on the WNPAC when excluding the interactions with other oceans. |
format |
Article in Journal/Newspaper |
author |
Shuyan Wu Wenshi Lin Lu Dong Fengfei Song Song Yang Zhiyuan Lu Xiaoming Hu |
author_facet |
Shuyan Wu Wenshi Lin Lu Dong Fengfei Song Song Yang Zhiyuan Lu Xiaoming Hu |
author_sort |
Shuyan Wu |
title |
Role of SST in Seasonal Western North Pacific Anomalous Anticyclone: Insights From AMIP Simulations in CMIP6 |
title_short |
Role of SST in Seasonal Western North Pacific Anomalous Anticyclone: Insights From AMIP Simulations in CMIP6 |
title_full |
Role of SST in Seasonal Western North Pacific Anomalous Anticyclone: Insights From AMIP Simulations in CMIP6 |
title_fullStr |
Role of SST in Seasonal Western North Pacific Anomalous Anticyclone: Insights From AMIP Simulations in CMIP6 |
title_full_unstemmed |
Role of SST in Seasonal Western North Pacific Anomalous Anticyclone: Insights From AMIP Simulations in CMIP6 |
title_sort |
role of sst in seasonal western north pacific anomalous anticyclone: insights from amip simulations in cmip6 |
publisher |
Wiley |
publishDate |
2024 |
url |
https://doi.org/10.1029/2023GL107080 https://doaj.org/article/5dbce05cb70b42d9b5d28e01079ae440 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Geophysical Research Letters, Vol 51, Iss 3, Pp n/a-n/a (2024) |
op_relation |
https://doi.org/10.1029/2023GL107080 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL107080 https://doaj.org/article/5dbce05cb70b42d9b5d28e01079ae440 |
op_doi |
https://doi.org/10.1029/2023GL107080 |
container_title |
Geophysical Research Letters |
container_volume |
51 |
container_issue |
3 |
_version_ |
1810463458559262720 |