دورية أكاديمية
Southern Hemispheric jet swing linked to Arctic stratospheric polar vortex
| العنوان: | Southern Hemispheric jet swing linked to Arctic stratospheric polar vortex |
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| المؤلفون: | Fei Xie, Xuan Ma, Yanjie Li, Jianping Li, Xiaosong Chen, Wenshou Tian, Cheng Sun, Mian Xu, Jiankai Zhang, Ke Gui, Ruiqiang Ding, Yan Xia, Yingli Niu |
| المصدر: | Environmental Research Letters, Vol 19, Iss 4, p 044053 (2024) |
| بيانات النشر: | IOP Publishing, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering LCC:Environmental sciences LCC:Science LCC:Physics |
| مصطلحات موضوعية: | Arctic stratospheric polar vortex (APV), Southern Hemispheric jet, planetary waves, precipitation, Environmental technology. Sanitary engineering, TD1-1066, Environmental sciences, GE1-350, Science, Physics, QC1-999 |
| الوصف: | Our study reframes our understanding of stratosphere–troposphere interactions, traditionally thought to be confined within individual hemispheres, by introducing a novel cross-hemispheric link. We demonstrate that strong boreal winter Arctic stratospheric polar vortex (APV) boosts the transmission of upper tropospheric waves from Northern Hemisphere’s mid-high latitudes to the equator. Facilitated by the tropical central and eastern Pacific’s ‘westerly bridge’, these waves reach Southern Hemisphere’s mid-high latitudes. The entire process shows a ‘semicircular road’. Waves reaching the Southern Hemisphere affect the circulation through wave-flow interaction, causing a southward swing of the Southern Hemispheric westerly jet center. This displacement weakens the subtropical jet and strengthens the polar jet, resulting in increased subtropical precipitation and decreased mid-latitude precipitation in the Southern Hemisphere during austral summer. Correspondingly, a weak APV may lead to the opposite result. Our findings underscore APV’s broader impact on the tropospheric atmosphere, extending beyond prior knowledge. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1748-9326 |
| العلاقة: | https://doaj.org/toc/1748-9326Test |
| DOI: | 10.1088/1748-9326/ad3460 |
| الوصول الحر: | https://doaj.org/article/de0a361e3cc842c1827e60f056448424Test |
| رقم الانضمام: | edsdoj.0a361e3cc842c1827e60f056448424 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 17489326 |
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| DOI: | 10.1088/1748-9326/ad3460 |