The Relationships Between Meridional Position of North Pacific Sea Surface Temperature Anomalies and North American Surface Temperatures Revealed by CMIP6 Models
Abstract In this study, we obtained the first leading mode and principal component 1 (PC1) of North Pacific sea surface temperature (SST). The PC1‐related SST anomalies, located relatively north/south, are referred to as North/South PC1 events. Model outputs, observations, reanalysis datasets and se...
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Online Access: | https://doi.org/10.1029/2022GL102096 https://doaj.org/article/db25db0711c940958264a97c482b9eeb |
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ftdoajarticles:oai:doaj.org/article:db25db0711c940958264a97c482b9eeb 2024-09-15T17:36:27+00:00 The Relationships Between Meridional Position of North Pacific Sea Surface Temperature Anomalies and North American Surface Temperatures Revealed by CMIP6 Models Tao Wang Xiaohua Gou Wenshou Tian Xuejia Wang Fei Xie 2023-07-01T00:00:00Z https://doi.org/10.1029/2022GL102096 https://doaj.org/article/db25db0711c940958264a97c482b9eeb EN eng Wiley https://doi.org/10.1029/2022GL102096 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2022GL102096 https://doaj.org/article/db25db0711c940958264a97c482b9eeb Geophysical Research Letters, Vol 50, Iss 14, Pp n/a-n/a (2023) north Pacific sea surface temperature atmospheric circulation surface temperature Geophysics. Cosmic physics QC801-809 article 2023 ftdoajarticles https://doi.org/10.1029/2022GL102096 2024-08-05T17:49:23Z Abstract In this study, we obtained the first leading mode and principal component 1 (PC1) of North Pacific sea surface temperature (SST). The PC1‐related SST anomalies, located relatively north/south, are referred to as North/South PC1 events. Model outputs, observations, reanalysis datasets and sensitivity experiments show that during the North PC1 events, an enhanced Aleutian low occurs and is located relatively north, favoring anomalous southerlies over western North America. The anomalous southerlies induce a strong warming anomaly over North America via warm advection of the anomalous southerlies and temperature advection of the climatological westerlies over North America. However, the Aleutian low anomaly and corresponding southerly anomaly associated with South PC1 events shift southward, favoring weakened effects of South PC1 events on atmospheric circulations and surface temperatures over North America. The meridional position of PC1 events deserves to be considered in the studies of the PC1 and its related climate changes. Article in Journal/Newspaper aleutian low Directory of Open Access Journals: DOAJ Articles Geophysical Research Letters 50 14 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
north Pacific sea surface temperature atmospheric circulation surface temperature Geophysics. Cosmic physics QC801-809 |
spellingShingle |
north Pacific sea surface temperature atmospheric circulation surface temperature Geophysics. Cosmic physics QC801-809 Tao Wang Xiaohua Gou Wenshou Tian Xuejia Wang Fei Xie The Relationships Between Meridional Position of North Pacific Sea Surface Temperature Anomalies and North American Surface Temperatures Revealed by CMIP6 Models |
topic_facet |
north Pacific sea surface temperature atmospheric circulation surface temperature Geophysics. Cosmic physics QC801-809 |
description |
Abstract In this study, we obtained the first leading mode and principal component 1 (PC1) of North Pacific sea surface temperature (SST). The PC1‐related SST anomalies, located relatively north/south, are referred to as North/South PC1 events. Model outputs, observations, reanalysis datasets and sensitivity experiments show that during the North PC1 events, an enhanced Aleutian low occurs and is located relatively north, favoring anomalous southerlies over western North America. The anomalous southerlies induce a strong warming anomaly over North America via warm advection of the anomalous southerlies and temperature advection of the climatological westerlies over North America. However, the Aleutian low anomaly and corresponding southerly anomaly associated with South PC1 events shift southward, favoring weakened effects of South PC1 events on atmospheric circulations and surface temperatures over North America. The meridional position of PC1 events deserves to be considered in the studies of the PC1 and its related climate changes. |
format |
Article in Journal/Newspaper |
author |
Tao Wang Xiaohua Gou Wenshou Tian Xuejia Wang Fei Xie |
author_facet |
Tao Wang Xiaohua Gou Wenshou Tian Xuejia Wang Fei Xie |
author_sort |
Tao Wang |
title |
The Relationships Between Meridional Position of North Pacific Sea Surface Temperature Anomalies and North American Surface Temperatures Revealed by CMIP6 Models |
title_short |
The Relationships Between Meridional Position of North Pacific Sea Surface Temperature Anomalies and North American Surface Temperatures Revealed by CMIP6 Models |
title_full |
The Relationships Between Meridional Position of North Pacific Sea Surface Temperature Anomalies and North American Surface Temperatures Revealed by CMIP6 Models |
title_fullStr |
The Relationships Between Meridional Position of North Pacific Sea Surface Temperature Anomalies and North American Surface Temperatures Revealed by CMIP6 Models |
title_full_unstemmed |
The Relationships Between Meridional Position of North Pacific Sea Surface Temperature Anomalies and North American Surface Temperatures Revealed by CMIP6 Models |
title_sort |
relationships between meridional position of north pacific sea surface temperature anomalies and north american surface temperatures revealed by cmip6 models |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1029/2022GL102096 https://doaj.org/article/db25db0711c940958264a97c482b9eeb |
genre |
aleutian low |
genre_facet |
aleutian low |
op_source |
Geophysical Research Letters, Vol 50, Iss 14, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1029/2022GL102096 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2022GL102096 https://doaj.org/article/db25db0711c940958264a97c482b9eeb |
op_doi |
https://doi.org/10.1029/2022GL102096 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
14 |
_version_ |
1810489708611895296 |