Amplification of Northern Hemisphere winter stationary waves in a warming world
Abstract This study leverages the Global/Regional Integrated Model system (GRIMs) version 4.0 climate model to examine the mechanisms behind the recent intensification of winter stationary waves over western North America. Prescribed sea surface temperature warming forces a strengthening of westerly...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | npj Climate and Atmospheric Science |
| Online Access: | https://doi.org/10.1038/s41612-025-00898-0 |
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| author | Jueun Lee S.-Y. Simon Wang Seok-Woo Son Daehyun Kim Jee-Hoon Jeong Hyungjun Kim Jin-Ho Yoon |
| author_facet | Jueun Lee S.-Y. Simon Wang Seok-Woo Son Daehyun Kim Jee-Hoon Jeong Hyungjun Kim Jin-Ho Yoon |
| author_sort | Jueun Lee |
| collection | DOAJ |
| description | Abstract This study leverages the Global/Regional Integrated Model system (GRIMs) version 4.0 climate model to examine the mechanisms behind the recent intensification of winter stationary waves over western North America. Prescribed sea surface temperature warming forces a strengthening of westerly winds, amplifying the ridge that characterizes the stationary waves in western North America. The streamfunction budget analysis reveals relative vorticity advection is mainly associated with this process. We further show that ocean warming is the primary driver of changes in westerly winds and stationary waves in the Northern Hemisphere. Sea ice losses exert a considerable effect through a different mechanism, complementing the dominant influence of ocean warming on these atmospheric changes. Our results thus reveal the crucial role tropical oceans play in modulating global warming’s effect on the stationary waves in the Northern Hemisphere and add a more quantitative perspective to the previously reported influence of Arctic amplification. |
| format | Article |
| id | doaj-art-4bf3610e8bb840de961c4118c38ec44c |
| institution | Kabale University |
| issn | 2397-3722 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Climate and Atmospheric Science |
| spelling | doaj-art-4bf3610e8bb840de961c4118c38ec44c2025-01-19T12:16:15ZengNature Portfolionpj Climate and Atmospheric Science2397-37222025-01-018111010.1038/s41612-025-00898-0Amplification of Northern Hemisphere winter stationary waves in a warming worldJueun Lee0S.-Y. Simon Wang1Seok-Woo Son2Daehyun Kim3Jee-Hoon Jeong4Hyungjun Kim5Jin-Ho Yoon6School of Environment and Energy Engineering, Gwangju Institute of Science and TechnologyDepartment of Plants, Soils, and Climate, Utah State UniversitySchool of Earth and Environmental Sciences, Seoul National UniversitySchool of Earth and Environmental Sciences, Seoul National UniversityDepartment of Environment and Energy, Sejong UniversityMoon Soul Graduate School of Future Strategy, Korea Advanced Institute of Science and TechnologySchool of Environment and Energy Engineering, Gwangju Institute of Science and TechnologyAbstract This study leverages the Global/Regional Integrated Model system (GRIMs) version 4.0 climate model to examine the mechanisms behind the recent intensification of winter stationary waves over western North America. Prescribed sea surface temperature warming forces a strengthening of westerly winds, amplifying the ridge that characterizes the stationary waves in western North America. The streamfunction budget analysis reveals relative vorticity advection is mainly associated with this process. We further show that ocean warming is the primary driver of changes in westerly winds and stationary waves in the Northern Hemisphere. Sea ice losses exert a considerable effect through a different mechanism, complementing the dominant influence of ocean warming on these atmospheric changes. Our results thus reveal the crucial role tropical oceans play in modulating global warming’s effect on the stationary waves in the Northern Hemisphere and add a more quantitative perspective to the previously reported influence of Arctic amplification.https://doi.org/10.1038/s41612-025-00898-0 |
| spellingShingle | Jueun Lee S.-Y. Simon Wang Seok-Woo Son Daehyun Kim Jee-Hoon Jeong Hyungjun Kim Jin-Ho Yoon Amplification of Northern Hemisphere winter stationary waves in a warming world npj Climate and Atmospheric Science |
| title | Amplification of Northern Hemisphere winter stationary waves in a warming world |
| title_full | Amplification of Northern Hemisphere winter stationary waves in a warming world |
| title_fullStr | Amplification of Northern Hemisphere winter stationary waves in a warming world |
| title_full_unstemmed | Amplification of Northern Hemisphere winter stationary waves in a warming world |
| title_short | Amplification of Northern Hemisphere winter stationary waves in a warming world |
| title_sort | amplification of northern hemisphere winter stationary waves in a warming world |
| url | https://doi.org/10.1038/s41612-025-00898-0 |
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