干旱区生态环境知识资源中心(Arid): Solar activity and the westerlies dominate decadal hydroclimatic changes over arid Central Asia

Arid

DOI	10.1016/j.gloplacha.2018.12.006
	Solar activity and the westerlies dominate decadal hydroclimatic changes over arid Central Asia
	Yan, Dongna 1,3; Xu, Hai 2; Lan, Jianghu 1; Zhou, Kangen 1,3; Ye, Yuanda 1,3; Zhang, Jixiao 1,3; An, Zhisheng 1; Yeager, Kevin M.4
通讯作者	Xu, Hai
来源期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
EISSN	1872-6364
出版年	2019
卷号	173 页码:53-60
英文摘要	Hydroclimatic changes over arid central Asia (ACA) are not fully understood, primarily due to the paucity of accurate, high-resolution climatic records. Here we reconstruct hydroclimatic changes over the past 160 years at Lake Karakul, Pamir Plateau (central Asia), using multiple, high-resolution (similar to 0.8 yr) sedimentary proxies. We find that hydroclimatic changes at Lake Karakul are well correlated with meteorological records, the snow equilibrium line altitude (ELA), reconstructed regional precipitation, the westerly index, and total solar irradiance (TSI), We contend that solar activity and the westerlies were the dominant influences on ACA hydro climatic variations during the period of record: (1) solar activity dominates regional temperature variations, precipitation/evaporation, and the advance/retreat of glaciers; (2) stronger westerly intensity (corresponding to higher westerly index and higher North Atlantic Oscillation (NAO) index) brings more water vapor from the west to ACA, and vice versa; and (3) the southerly migration of the westerly jet stream, which is closely related to lower TSI and temperatures, could favor more water vapor transported to ACA areas, and vice versa. We anticipate that continued global warming will result in more rapid glacial retreat, enhanced evaporation, lake area shrinkage, and deeper aridification over ACA.
英文关键词	Arid Central Asia Westerly Water vapor sources Glacier Solar activity Lake Karakul
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000457512400006
WOS关键词	NORTH-ATLANTIC OSCILLATION ; HOLOCENE MOISTURE EVOLUTION ; TIEN-SHAN ; GLACIER FLUCTUATIONS ; BOSTEN LAKE ; ICE-AGE ; CLIMATE ; RECORD ; PRECIPITATION ; VARIABILITY
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
来源机构	中国科学院地球环境研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216064
作者单位	1.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China; 2.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China; 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 4.Univ Kentucky, Dept Earth & Environm Sci, Lexington, KY 40506 USA
推荐引用方式 GB/T 7714	Yan, Dongna,Xu, Hai,Lan, Jianghu,et al. Solar activity and the westerlies dominate decadal hydroclimatic changes over arid Central Asia[J]. 中国科学院地球环境研究所,2019,173:53-60.
APA	Yan, Dongna.,Xu, Hai.,Lan, Jianghu.,Zhou, Kangen.,Ye, Yuanda.,...&Yeager, Kevin M..(2019).Solar activity and the westerlies dominate decadal hydroclimatic changes over arid Central Asia.GLOBAL AND PLANETARY CHANGE,173,53-60.
MLA	Yan, Dongna,et al."Solar activity and the westerlies dominate decadal hydroclimatic changes over arid Central Asia".GLOBAL AND PLANETARY CHANGE 173(2019):53-60.