干旱区生态环境知识资源中心(Arid): Summer precipitation variability in the Mongolian Plateau and its possible causes

Arid

DOI	10.1016/j.gloplacha.2023.104189
	Summer precipitation variability in the Mongolian Plateau and its possible causes
	Li, Yulan; Gong, Hainan; Chen, Wen; Wang, Lin; Wu, Renguang; Dong, Zizhen; Piao, Jinling; Ma, Kangjie
通讯作者	Gong, HN ; Chen, W
来源期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
EISSN	1872-6364
出版年	2023
卷号	228
英文摘要	The climate and ecosystem in the arid and semi-arid regions including the Mongolian Plateau (MP) are fragile and vulnerable to the changes of precipitation. This study investigates the summer precipitation variability in MP during 1979-2021. Results show that the leading mode of summer precipitation variation in MP is characterized by a same-sign pattern, with pronounced interannual and interdecadal fluctuations. Further analysis indicates that this leading mode is affected by both internal atmospheric circulation and remote oceanic forcing. A new internal atmospheric teleconnection pattern propagating from North Europe to Polar and East Asia (NPE) is identified as a key circulation factor of the summer precipitation variability in MP. The anomalous ascending motion and water vapor convergence associated with an anomalous cyclone of the NPE pattern facilitates the increase of precipitation in MP. Besides, a dipole surface sea temperature anomaly pattern in the North Atlantic may excite a zonal wave train propagating eastwards toward Mongolia and increase the precipitation in MP. Sensitivity experiments confirm the impact of the North Atlantic dipole SST anomalies on the precipitation variability in MP. Quantitative analysis indicates that the internal atmospheric NPE teleconnection accounts for approximately 21% of total variance of summer precipitation in MP, and the North Atlantic oceanic forcing is relatively weak, explaining about 10% of precipitation variation in MP.
英文关键词	Mongolian Plateau Summer Precipitation Interannual variability Atmospheric wave train North Atlantic
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001050362000001
WOS关键词	NORTH-ATLANTIC SST ; SEA-SURFACE TEMPERATURE ; INNER-MONGOLIA ; INTERANNUAL VARIABILITY ; CIRCUMGLOBAL TELECONNECTION ; ATMOSPHERIC CIRCULATION ; TEMPORAL VARIABILITY ; DUST FREQUENCY ; WATER-QUALITY ; ROSSBY WAVES
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396766
推荐引用方式 GB/T 7714	Li, Yulan,Gong, Hainan,Chen, Wen,et al. Summer precipitation variability in the Mongolian Plateau and its possible causes[J],2023,228.
APA	Li, Yulan.,Gong, Hainan.,Chen, Wen.,Wang, Lin.,Wu, Renguang.,...&Ma, Kangjie.(2023).Summer precipitation variability in the Mongolian Plateau and its possible causes.GLOBAL AND PLANETARY CHANGE,228.
MLA	Li, Yulan,et al."Summer precipitation variability in the Mongolian Plateau and its possible causes".GLOBAL AND PLANETARY CHANGE 228(2023).