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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Published in:Geophysical Research Letters
Main Authors: Tao Wang, Xiaohua Gou, Wenshou Tian, Xuejia Wang, Fei Xie
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 2023
Subjects:
Online Access:https://doi.org/10.1029/2022GL102096
https://doaj.org/article/db25db0711c940958264a97c482b9eeb
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spelling 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
institution Open Polar
collection 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
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