气候变化领域集成服务门户(CCPortal): Future changes in South Asian summer monsoon circulation under global warming: role of the Tibetan Plateau latent heating

CCPortal

DOI	10.1038/s41612-024-00653-x
	Future changes in South Asian summer monsoon circulation under global warming: role of the Tibetan Plateau latent heating
	Luo, Haolin; Wang, Ziqian; He, Chao; Chen, Deliang; Yang, Song
发表日期	2024
ISSN	2397-3722
起始页码	7
结束页码	1
卷号	7 期号:1
英文摘要	The South Asian summer monsoon (SASM) is a significant monsoon system that exerts a profound impact on climate and human livelihoods. According to 38 models from the Coupled Model Intercomparison Project Phase 6, the SASM circulation is projected to weaken significantly under global warming as seen in the weakened low-level westerly wind over the northern tropical Indian Ocean; however, the associated climate dynamics is still under debate. Here, we identify that the weakened low-level westerly wind is closely related to the enhanced latent heating over the Tibetan Plateau (TP), which corresponds with increased summer precipitation in the future. The intensified TP latent heating triggers an anomalous meridional circulation with ascending motions over the plateau and descending motions to the south, leading to an anomalous low-level anticyclone over the northern tropical Indian Ocean. This anticyclone greatly weakens the prevailing low-level westerlies of the SASM through easterly anomalies at the anticyclone's southern flank. Moisture budget analysis further reveals that increased atmospheric water vapor, rather than the vertical dynamic component, makes the largest contribution to the increased precipitation over the TP. This result confirms that the enhanced TP latent heating is a driver of atmospheric circulation change and contributes to weakening the SASM circulation.
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001223607700001
来源期刊	NPJ CLIMATE AND ATMOSPHERIC SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295281
作者单位	Sun Yat Sen University; Southern Marine Science & Engineering Guangdong Laboratory; Southern Marine Science & Engineering Guangdong Laboratory (Zhuhai); Sun Yat Sen University; Jinan University; University of Gothenburg
推荐引用方式 GB/T 7714	Luo, Haolin,Wang, Ziqian,He, Chao,et al. Future changes in South Asian summer monsoon circulation under global warming: role of the Tibetan Plateau latent heating[J],2024,7(1).
APA	Luo, Haolin,Wang, Ziqian,He, Chao,Chen, Deliang,&Yang, Song.(2024).Future changes in South Asian summer monsoon circulation under global warming: role of the Tibetan Plateau latent heating.NPJ CLIMATE AND ATMOSPHERIC SCIENCE,7(1).
MLA	Luo, Haolin,et al."Future changes in South Asian summer monsoon circulation under global warming: role of the Tibetan Plateau latent heating".NPJ CLIMATE AND ATMOSPHERIC SCIENCE 7.1(2024).