Dry soil moisture on the Tibetan plateau drives synchronous extreme heatwaves in Europe and East Asia
Abstract Recently, extreme heatwaves have frequently concurrently swept across Europe and East Asia, causing severe cascading socioeconomic consequences. However, the nonlinear synchronization relationship between these heatwaves and their underlying physical mechanisms remains poorly understood. Ut...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | npj Climate and Atmospheric Science |
| Online Access: | https://doi.org/10.1038/s41612-024-00831-x |
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| _version_ | 1846158711085596672 |
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| author | Jilan Jiang Yimin Liu Jun Meng Guoxiong Wu Bian He Tingting Ma Wen Bao Jingfang Fan |
| author_facet | Jilan Jiang Yimin Liu Jun Meng Guoxiong Wu Bian He Tingting Ma Wen Bao Jingfang Fan |
| author_sort | Jilan Jiang |
| collection | DOAJ |
| description | Abstract Recently, extreme heatwaves have frequently concurrently swept across Europe and East Asia, causing severe cascading socioeconomic consequences. However, the nonlinear synchronization relationship between these heatwaves and their underlying physical mechanisms remains poorly understood. Utilizing the event synchronization climate network method, atmospheric dynamic diagnostics, and numerical experiments, we revealed robust synchronization between heatwaves over Europe and East Asia, strongly associated with dry soil moisture conditions over the Tibetan Plateau from the preceding winter to summer. Dry soil moisture triggers an equivalent barotropic anticyclone north of the Tibetan Plateau, coinciding with the subtropical westerly jet waveguide and initiating circumglobal atmospheric Rossby waves propagating westward and eastward. Consequently, an equivalent barotropic anticyclone develops over Europe. These anticyclones induce simultaneous heatwaves across Europe and East Asia by increasing downward solar radiation and adiabatic sinking, amplified by positive land-atmosphere feedback. Our findings significantly enhance the understanding and predictive capabilities of these synchronous heatwaves across Eurasia. |
| format | Article |
| id | doaj-art-ff35f914ba71434487a17e0f5dda2ef5 |
| institution | Kabale University |
| issn | 2397-3722 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Climate and Atmospheric Science |
| spelling | doaj-art-ff35f914ba71434487a17e0f5dda2ef52024-11-24T12:16:59ZengNature Portfolionpj Climate and Atmospheric Science2397-37222024-11-017111010.1038/s41612-024-00831-xDry soil moisture on the Tibetan plateau drives synchronous extreme heatwaves in Europe and East AsiaJilan Jiang0Yimin Liu1Jun Meng2Guoxiong Wu3Bian He4Tingting Ma5Wen Bao6Jingfang Fan7State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of SciencesKey Laboratory of Earth System Numerical Modeling and Application, Institute of Atmospheric Physics, Chinese Academy of SciencesSchool of Science, Beijing University of Posts and TelecommunicationsState Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of SciencesKey Laboratory of Earth System Numerical Modeling and Application, Institute of Atmospheric Physics, Chinese Academy of SciencesChina Meteorological Administration Training CentreChinese Research Academy of Environmental SciencesSchool of Systems Science, Beijing Normal UniversityAbstract Recently, extreme heatwaves have frequently concurrently swept across Europe and East Asia, causing severe cascading socioeconomic consequences. However, the nonlinear synchronization relationship between these heatwaves and their underlying physical mechanisms remains poorly understood. Utilizing the event synchronization climate network method, atmospheric dynamic diagnostics, and numerical experiments, we revealed robust synchronization between heatwaves over Europe and East Asia, strongly associated with dry soil moisture conditions over the Tibetan Plateau from the preceding winter to summer. Dry soil moisture triggers an equivalent barotropic anticyclone north of the Tibetan Plateau, coinciding with the subtropical westerly jet waveguide and initiating circumglobal atmospheric Rossby waves propagating westward and eastward. Consequently, an equivalent barotropic anticyclone develops over Europe. These anticyclones induce simultaneous heatwaves across Europe and East Asia by increasing downward solar radiation and adiabatic sinking, amplified by positive land-atmosphere feedback. Our findings significantly enhance the understanding and predictive capabilities of these synchronous heatwaves across Eurasia.https://doi.org/10.1038/s41612-024-00831-x |
| spellingShingle | Jilan Jiang Yimin Liu Jun Meng Guoxiong Wu Bian He Tingting Ma Wen Bao Jingfang Fan Dry soil moisture on the Tibetan plateau drives synchronous extreme heatwaves in Europe and East Asia npj Climate and Atmospheric Science |
| title | Dry soil moisture on the Tibetan plateau drives synchronous extreme heatwaves in Europe and East Asia |
| title_full | Dry soil moisture on the Tibetan plateau drives synchronous extreme heatwaves in Europe and East Asia |
| title_fullStr | Dry soil moisture on the Tibetan plateau drives synchronous extreme heatwaves in Europe and East Asia |
| title_full_unstemmed | Dry soil moisture on the Tibetan plateau drives synchronous extreme heatwaves in Europe and East Asia |
| title_short | Dry soil moisture on the Tibetan plateau drives synchronous extreme heatwaves in Europe and East Asia |
| title_sort | dry soil moisture on the tibetan plateau drives synchronous extreme heatwaves in europe and east asia |
| url | https://doi.org/10.1038/s41612-024-00831-x |
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