干旱区生态环境知识资源中心(Arid): Origin of the spatial consistency of summer precipitation variability between the Mongolian Plateau and the mid-latitude East Asian summer monsoon region

Arid

DOI	10.1007/s11430-019-9593-2
	Origin of the spatial consistency of summer precipitation variability between the Mongolian Plateau and the mid-latitude East Asian summer monsoon region
	Chen, Jie; Huang, Wei; Zhang, Qiong; Feng, Song
通讯作者	Huang, W
来源期刊	SCIENCE CHINA-EARTH SCIENCES
ISSN	1674-7313
EISSN	1869-1897
出版年	2020
卷号	63 期号:8 页码:1199-1208
英文摘要	The Mongolian Plateau (MP) is located in the eastern part of arid Central Asia (ACA). Climatically, much of the MP is dominated by the westerly circulation and has an arid and semi-arid climate; however, the eastern part of the MP is also influenced by the East Asian summer monsoon (EASM) and has a humid and semi-humid climate. Several studies have shown that precipitation variability in the MP differs from that in western ACA but is consistent with that in the EASM region. Here we use monthly precipitation data for 1979-2016 to characterize and determine the origin of the summer precipitation variability of the MP and the EASM region. The results show that the MP and the mid-latitude EASM region exhibit a consistent pattern of precipitation variability on interannual and decadal timescales; specifically, the consistent regions are the MP and North and Northeast China. We further investigated the physical mechanisms responsible for the consistent interdecadal precipitation variability between the MP and the mid-latitude EASM region, and found that the mid-latitude wave train over Eurasia, with positive (negative) geopotential height anomalies over the North Atlantic and ACA and negative (positive) geopotential height anomalies over Europe and the MP, is the key factor responsible for the consistency of precipitation variability in the MP and the mid-latitude EASM region. The positive anomalies over the North Atlantic and ACA and negative anomalies over Europe and the MP would enhance the transport of westerly and monsoon moisture to the MP and North and Northeast China. They could also strengthen the Northeast Asian low, enhance the EASM, and trigger the anomalous ascending motion over the MP which promotes precipitation in the MP and in the mid-latitude EASM region. Overall, our results help explain the spatial variations of paleo-precipitation/humidity reconstructions in East Asia and clarify the reasons for the consistency of the regional climate.
英文关键词	Mongolian Plateau Mid-latitude EASM region Summer precipitation Decadal Consistent variability
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000532649900002
WOS关键词	HOLOCENE MOISTURE EVOLUTION ; ARID CENTRAL-ASIA ; CLIMATE ; DECREASE ; TREND
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/324444
作者单位	[Chen, Jie; Huang, Wei] Lanzhou Univ, Key Lab Western Chinas Environm Syst, Coll Earth & Environm Sci, Minist Educ, Lanzhou 730000, Peoples R China; [Zhang, Qiong] Stockholm Univ, Dept Phys Geog, S-10691 Stockholm, Sweden; [Zhang, Qiong] Stockholm Univ, Bolin Ctr Climate Res, S-10691 Stockholm, Sweden; [Feng, Song] Univ Arkansas, Dept Geosci, Fayetteville, AR 72701 USA
推荐引用方式 GB/T 7714	Chen, Jie,Huang, Wei,Zhang, Qiong,et al. Origin of the spatial consistency of summer precipitation variability between the Mongolian Plateau and the mid-latitude East Asian summer monsoon region[J]. 兰州大学,2020,63(8):1199-1208.
APA	Chen, Jie,Huang, Wei,Zhang, Qiong,&Feng, Song.(2020).Origin of the spatial consistency of summer precipitation variability between the Mongolian Plateau and the mid-latitude East Asian summer monsoon region.SCIENCE CHINA-EARTH SCIENCES,63(8),1199-1208.
MLA	Chen, Jie,et al."Origin of the spatial consistency of summer precipitation variability between the Mongolian Plateau and the mid-latitude East Asian summer monsoon region".SCIENCE CHINA-EARTH SCIENCES 63.8(2020):1199-1208.