气候变化领域集成服务门户(CCPortal): Associated Atmospheric Mechanisms for the Increased Cold Season Precipitation over the Three-River Headwaters Region from the Late 1980s

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DOI	10.1175/JCLI-D-21-0077.1
	Associated Atmospheric Mechanisms for the Increased Cold Season Precipitation over the Three-River Headwaters Region from the Late 1980s
	Shang, Shasha; Zhu, Gaofeng; Wei, Jianhui; Li, Yan; Zhang, Kun; Li, Ruolin; Arnault, Joel; Zhang, Zhenyu; Laux, Patrick; Yang, Qianya; Dong, Ningpeng; Gao, Lu; Kunstmann, Harald
通讯作者	Zhu, GF (通讯作者)，Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou, Peoples R China. ; Wei, JH (通讯作者)，Karlsruhe Inst Technol, Inst Meteorol & Climate Res IMK IFU, Garmisch Partenkirchen, Germany.
发表日期	2021
ISSN	0894-8755
EISSN	1520-0442
起始页码	8033
结束页码	8046
卷号	34 期号:19
英文摘要	Precipitation in the Three-River Headwater (TRH) region has undergone significant changes as a result of global warming, which can affect water resources in downstream regions of Asia. However, the underlying mechanisms of the precipitation variability during the cold season (October-April) are still not fully understood. In this study, the daily China gridded precipitation product CN05.1 as well as the NCEP-NCAR reanalysis are used to investigate the characteristics of the cold season precipitation variability over the TRH region and associated atmospheric mechanisms. The cold season precipitation shows an increasing trend (5.5 mm decade(-1)) from 1961 to 2014, with a dry-to-wet shift in around the late 1980s. The results indicate that the increased precipitation is associated with the enhanced easterly anomalies over the Tibetan Plateau (TP) and enhanced southeasterly water vapor transport. The enhanced Walker circulations, caused by the gradients of sea surface temperature between the equatorial central-eastern Pacific and Indo-western Pacific in tropical oceans, resulted in strengthened easterly anomalies over the TP and the westward expansion of the anticyclone in the western North Pacific. Meanwhile, the changed Walker circulation is accompanied by a strengthened local Hadley circulation, which leads to enhanced meridional water vapor transport from tropical oceans and the South China Sea toward the TRH region. Furthermore, the strengthened East Asia subtropical westerly jet may contribute to the enhanced divergence at upper levels and anomalous ascending motion above the TRH region, leading to more precipitation.
关键词	TIBETAN PLATEAU CLIMATE-CHANGE SUMMER PRECIPITATION INTERANNUAL VARIABILITY HADLEY CIRCULATION WALKER CIRCULATION MOUNTAIN REGIONS WATER-VAPOR SNOW DEPTH JET-STREAM
英文关键词	Precipitation; Atmospheric circulation; Teleconnections; Sea surface temperature
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000752634100016
来源期刊	JOURNAL OF CLIMATE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/255183
作者单位	[Shang, Shasha; Zhu, Gaofeng] Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou, Peoples R China; [Shang, Shasha; Wei, Jianhui; Arnault, Joel; Zhang, Zhenyu; Laux, Patrick; Kunstmann, Harald] Karlsruhe Inst Technol, Inst Meteorol & Climate Res IMK IFU, Garmisch Partenkirchen, Germany; [Li, Yan] Lanzhou Univ, Coll Atmospher Sci, Key Lab Arid Climate Change & Reduct Gansu Prov, Lanzhou, Peoples R China; [Zhang, Kun] Chinese Acad Sci, Natl Tibetan Plateau Data Ctr, Inst Tibetan Plateau Res, Beijing, Peoples R China; [Li, Ruolin] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basins, Lanzhou, Peoples R China; [Li, Ruolin] Qilian Mt Ecoenvironm Res Ctr Gansu Prov, Lanzhou, Peoples R China; [Laux, Patrick; Kunstmann, Harald] Univ Augsburg, Inst Geog, Augsburg, Germany; [Yang, Qianya] Hohai Univ, Coll Hydrol & Water Resources, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing, Peoples R China; [Dong, Ningpeng] Ch...
推荐引用方式 GB/T 7714	Shang, Shasha,Zhu, Gaofeng,Wei, Jianhui,et al. Associated Atmospheric Mechanisms for the Increased Cold Season Precipitation over the Three-River Headwaters Region from the Late 1980s[J]. 中国科学院西北生态环境资源研究院,2021,34(19).
APA	Shang, Shasha.,Zhu, Gaofeng.,Wei, Jianhui.,Li, Yan.,Zhang, Kun.,...&Kunstmann, Harald.(2021).Associated Atmospheric Mechanisms for the Increased Cold Season Precipitation over the Three-River Headwaters Region from the Late 1980s.JOURNAL OF CLIMATE,34(19).
MLA	Shang, Shasha,et al."Associated Atmospheric Mechanisms for the Increased Cold Season Precipitation over the Three-River Headwaters Region from the Late 1980s".JOURNAL OF CLIMATE 34.19(2021).