Solar activity and the westerlies dominate decadal hydroclimatic changes over arid Central Asia

doi:10.1016/j.gloplacha.2018.12.006

IEECAS OpenIR > 现代环境研究室

	Solar activity and the westerlies dominate decadal hydroclimatic changes over arid Central Asia
	Yan, Dongna 1,3; Xu, Hai 2; Lan, Jianghu1 ; 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(xuhai@tju.edu.cn)
	2019-02-01
发表期刊	GLOBAL AND PLANETARY CHANGE
ISSN	0921-8181
卷号	173 页码:53-60
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.
关键词	Arid Central Asia Westerly Water vapor sources Glacier Solar activity Lake Karakul
DOI	10.1016/j.gloplacha.2018.12.006
关键词[WOS]	NORTH-ATLANTIC OSCILLATION ; HOLOCENE MOISTURE EVOLUTION ; TIEN-SHAN ; GLACIER FLUCTUATIONS ; BOSTEN LAKE ; ICE-AGE ; CLIMATE ; RECORD ; PRECIPITATION ; VARIABILITY
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41672169] ; National Natural Science Foundation of China[41502171] ; External Cooperation Program of Bureau of International Cooperation, Chinese Academy of Sciences[132B61KYSB20130003] ; State Key Laboratory of Loess and Quaternary Geology[SKLLQG1406]
WOS研究方向	Physical Geography ; Geology
项目资助者	National Natural Science Foundation of China ; External Cooperation Program of Bureau of International Cooperation, Chinese Academy of Sciences ; State Key Laboratory of Loess and Quaternary Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000457512400006
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14346
专题	现代环境研究室
通讯作者	Xu, Hai
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]. GLOBAL AND PLANETARY CHANGE,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.