干旱区生态环境知识资源中心(Arid): The evolution of precipitation and its physical mechanisms in arid and humid regions of the Tibetan Plateau

Arid

DOI	10.1016/j.atmosres.2023.106638
	The evolution of precipitation and its physical mechanisms in arid and humid regions of the Tibetan Plateau
	Li, Guiping; Yu, Zhongbo; Li, Yanping; Li, Zhenhua; Ju, Qin; Huang, Ya
通讯作者	Yu, ZB
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2023
卷号	285
英文摘要	Glaciers, lakes, rivers, and vegetation are particularly sensitive to the change of precipitation in the transition zone between arid and humid regions of the Tibetan Plateau. This study analyzed the spatiotemporal evolution of precipitation and its mechanisms under dynamic and thermodynamic processes based on in situ and satellite precipitation data of the Tibetan Plateau. The results indicate that the proportion of areas with annual precipitation <400 mm or >2000 mm decreases, while the proportion of areas with annual precipitation between 400 and 2000 mm increases from 1998 to 2018. This shows that precipitation in arid, semi-arid, and semi-humid regions exhibits an increasing trend, while that in southeastern humid regions exhibits a decreasing trend. Moreover, the dynamic process has a stronger effect on the change of precipitation than the thermodynamic one. In particular, the former is twice as strong as the latter, indicating that the atmospheric circulation wind has a more significant impact on the precipitation change. Although the arid, semi-arid, and semi-humid regions show a wetting trend, their physical mechanisms are different. The decrease of negative contribution of the advection and the increase of positive contribution of the convergence lead to the increase of precipitation in northwestern arid and semi-arid regions, while the convergence and advection show a slight decrease in the eastern semihumid and humid regions.
英文关键词	Moisture transport Dynamics Thermodynamics Remote sensing
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000927831400001
WOS关键词	SOUTH ASIAN MONSOON ; CLIMATE-CHANGE ; RAINFALL ; PATTERNS ; CHINA ; ENSO
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395508
推荐引用方式 GB/T 7714	Li, Guiping,Yu, Zhongbo,Li, Yanping,et al. The evolution of precipitation and its physical mechanisms in arid and humid regions of the Tibetan Plateau[J],2023,285.
APA	Li, Guiping,Yu, Zhongbo,Li, Yanping,Li, Zhenhua,Ju, Qin,&Huang, Ya.(2023).The evolution of precipitation and its physical mechanisms in arid and humid regions of the Tibetan Plateau.ATMOSPHERIC RESEARCH,285.
MLA	Li, Guiping,et al."The evolution of precipitation and its physical mechanisms in arid and humid regions of the Tibetan Plateau".ATMOSPHERIC RESEARCH 285(2023).