The Unprecedented 2023 North China Heatwaves and Their S2S Predictability
Abstract This study unravels the characteristics, mechanisms, and predictability of four consecutive record‐breaking heatwaves hitting North China in June and July 2023. The first three heatwaves primarily influenced the northern part of North China and were accompanied by consistent anticyclonic an...
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| Format: | Article |
| Language: | English |
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Wiley
2024-03-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2023GL107642 |
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| author | Huiwen Xiao Peiqiang Xu Lin Wang |
| author_facet | Huiwen Xiao Peiqiang Xu Lin Wang |
| author_sort | Huiwen Xiao |
| collection | DOAJ |
| description | Abstract This study unravels the characteristics, mechanisms, and predictability of four consecutive record‐breaking heatwaves hitting North China in June and July 2023. The first three heatwaves primarily influenced the northern part of North China and were accompanied by consistent anticyclonic anomalies in the upper troposphere. The anomalous anticyclone was caused by the British–Baikal corridor teleconnection along the polar front jet, particularly during the second heatwave. In contrast, the fourth heatwave was induced by a distinct low‐pressure system, attributed to the Silk Road pattern along the subtropical jet. The presence of this low‐pressure system and its interaction with atmospheric rivers and local topography led to the foehn wind, further contributing to the rise in surface temperatures. Sub‐seasonal to seasonal models can effectively predict the occurrence of all heatwaves 2–5 days in advance despite underestimating the intensity. However, models exhibit limitations in providing reliable predictions when the lead time exceeds 2 weeks. |
| format | Article |
| id | doaj-art-1c96e71f54f1478b96878dc77aef93d4 |
| institution | Kabale University |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-1c96e71f54f1478b96878dc77aef93d42025-08-20T03:49:37ZengWileyGeophysical Research Letters0094-82761944-80072024-03-01516n/an/a10.1029/2023GL107642The Unprecedented 2023 North China Heatwaves and Their S2S PredictabilityHuiwen Xiao0Peiqiang Xu1Lin Wang2Center for Monsoon System Research Institute of Atmospheric Physics Chinese Academy of Sciences Beijing ChinaCenter for Monsoon System Research Institute of Atmospheric Physics Chinese Academy of Sciences Beijing ChinaCenter for Monsoon System Research Institute of Atmospheric Physics Chinese Academy of Sciences Beijing ChinaAbstract This study unravels the characteristics, mechanisms, and predictability of four consecutive record‐breaking heatwaves hitting North China in June and July 2023. The first three heatwaves primarily influenced the northern part of North China and were accompanied by consistent anticyclonic anomalies in the upper troposphere. The anomalous anticyclone was caused by the British–Baikal corridor teleconnection along the polar front jet, particularly during the second heatwave. In contrast, the fourth heatwave was induced by a distinct low‐pressure system, attributed to the Silk Road pattern along the subtropical jet. The presence of this low‐pressure system and its interaction with atmospheric rivers and local topography led to the foehn wind, further contributing to the rise in surface temperatures. Sub‐seasonal to seasonal models can effectively predict the occurrence of all heatwaves 2–5 days in advance despite underestimating the intensity. However, models exhibit limitations in providing reliable predictions when the lead time exceeds 2 weeks.https://doi.org/10.1029/2023GL107642heatwavesub‐seasonal to seasonal predictionRossby wavejet streamteleconnectionextreme event |
| spellingShingle | Huiwen Xiao Peiqiang Xu Lin Wang The Unprecedented 2023 North China Heatwaves and Their S2S Predictability Geophysical Research Letters heatwave sub‐seasonal to seasonal prediction Rossby wave jet stream teleconnection extreme event |
| title | The Unprecedented 2023 North China Heatwaves and Their S2S Predictability |
| title_full | The Unprecedented 2023 North China Heatwaves and Their S2S Predictability |
| title_fullStr | The Unprecedented 2023 North China Heatwaves and Their S2S Predictability |
| title_full_unstemmed | The Unprecedented 2023 North China Heatwaves and Their S2S Predictability |
| title_short | The Unprecedented 2023 North China Heatwaves and Their S2S Predictability |
| title_sort | unprecedented 2023 north china heatwaves and their s2s predictability |
| topic | heatwave sub‐seasonal to seasonal prediction Rossby wave jet stream teleconnection extreme event |
| url | https://doi.org/10.1029/2023GL107642 |
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