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Distinct Holocene precipitation trends over arid Central Asia and linkages to westerlies and Asian monsoon
Shi, Zhengguo1,2,3,4; Zhou, Peng1,5; Li, Xinzhou1; Cheng, Hai3; Sha, Yingying1,6; Xie, Xiaoning1; Liu, Heng1,6; Wu, Jie1; Liu, Xiaodong1
Corresponding AuthorShi, Zhengguo(shizg@ieecas.cn)
2021-08-15
Source PublicationQUATERNARY SCIENCE REVIEWS
ISSN0277-3791
Volume266Pages:11
AbstractThe response of precipitation over arid Central Asia since the mid Holocene is long considered to be controlled by astronomical insolation-induced changes in the westerlies. However, it is still controversial in proxy and modeling studies whether the trend of Central Asian precipitation is in accordance with Asian monsoon or not. Compared to the monsoon, the westerlies-associated precipitation changes are complicated and also rely on regional mountain complex. In this study, we conducted a high-resolution transient experiment by a coupled climate model to evaluate the response of Central Asian precipitation. The simulated precipitation changes are distinctly different over regions although they are mainly associated with the westerlies. Since mid Holocene, the annual precipitation increases over BalkhashAltai region but decreases over Turan Plain, Mongolia-Baikal and Tarim Basin, in all of which the summer precipitation contributes most. Following the summer insolation, the southward shift of westerly jet is accompanied by wave-like anomalies in the upper-tropospheric meridional winds across mid-latitude Eurasia (the Silk Road pattern), which results in distinct summer precipitation changes. The decreased precipitation over Tarim is mainly explained by weakened low-level easterly wind anomaly and less moisture supply from East Asia. In contrast, the responses of winter precipitation are limited even in the winter-rainfall-dominated regime due to the small insolation change. Such simulated complicated precipitation trends during the Holocene are in qualitative agreement with existing proxies, highlighting the modulation of Silk Road pattern on Central Asian rainfall on the orbital timescale. (C) 2021 Elsevier Ltd. All rights reserved.
KeywordClimate model Insolation Silk road pattern Moisture Tarim basin Tian Shan mountains
DOI10.1016/j.quascirev.2021.107055
WOS KeywordCLIMATE-CHANGE ; NORTHERN-HEMISPHERE ; MOISTURE EVOLUTION ; SUMMER RAINFALL ; PLATEAU ; XINJIANG ; CHINA ; JET
Indexed BySCI ; SCI
Language英语
Funding ProjectStrategic Priority Research Program of Chinese Academy of Sciences[XDB40030000] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41977382] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS Research AreaPhysical Geography ; Geology
Funding OrganizationStrategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
WOS IDWOS:000694899400007
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/16992
Collection古环境研究室
第四纪科学与全球变化卓越创新中心
Corresponding AuthorShi, Zhengguo
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Xian, Peoples R China
3.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China
4.Lab Marine Sci & Technol, Pilot Natl, Open Studio Ocean Continental Climate & Environm, Qingdao, Peoples R China
5.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing, Peoples R China
6.Xian Inst Innovat Earth Environm Res, Xian, Peoples R China
Recommended Citation
GB/T 7714
Shi, Zhengguo,Zhou, Peng,Li, Xinzhou,et al. Distinct Holocene precipitation trends over arid Central Asia and linkages to westerlies and Asian monsoon[J]. QUATERNARY SCIENCE REVIEWS,2021,266:11.
APA Shi, Zhengguo.,Zhou, Peng.,Li, Xinzhou.,Cheng, Hai.,Sha, Yingying.,...&Liu, Xiaodong.(2021).Distinct Holocene precipitation trends over arid Central Asia and linkages to westerlies and Asian monsoon.QUATERNARY SCIENCE REVIEWS,266,11.
MLA Shi, Zhengguo,et al."Distinct Holocene precipitation trends over arid Central Asia and linkages to westerlies and Asian monsoon".QUATERNARY SCIENCE REVIEWS 266(2021):11.
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