兰州大学机构库 >大气科学学院
Impacts of Spatiotemporal Anomalies of Tibetan Plateau Snow Cover on Summer Precipitation in Eastern China
Wang, CH(王澄海); Yang, K; Li, YL; Wu, D; Bo, Y; Wang, CH (reprint author), Lanzhou Univ, Coll Atmospher Sci, Key Lab Arid Climate Change & Disaster Reduct Gan, Lanzhou, Peoples R China.
收录类别SCIE
2017-02
发表期刊JOURNAL OF CLIMATE
卷号30期号:3页码:885-903
出版者AMER METEOROLOGICAL SOC
出版地BOSTON
摘要Tibetan Plateau (TP) snow cover undergoes significant temporal and spatial variations during the winter and spring months. This study investigates the relationship between the spatiotemporal distribution of winter-spring snow cover (SC) over the TP and summer precipitation in eastern China (EC) using the singular value decomposition (SVD) method. Four simulation experiments are designed to validate the results of SVD analysis. Both observations and simulations show that heavier snow cover in the southern TP leads to more rainfall in the Yangtze River basin and northeastern China, and less precipitation in southern China, whereas heavier snow cover in the northern TP results in enhanced rainfall in southeastern and northern China and weakened precipitation in the Yangtze River basin. The linkage is attributed to anomalous westerly winds in the upper troposphere at around 200 hPa and to changes of the southern branch of westerlies at 500 hPa on the south side of the TP, which are caused by lasting diabatic heat anomalies over the TP. The shifts in position of the westerly jet at the exit region and negative anomalies of geopotential height at 500 hPa further result in anomalous anticyclone over the East China Sea and the corresponding 850-hPa water vapor convergence and influence the anomalous summer precipitation belt in EC.
作者部门[Wang, Chenghai;
Yang, Kai;
Li, Yiling;
Wu, Di;
Bo, Yue] Lanzhou Univ, Coll Atmospher Sci, Key Lab Arid Climate Change & Disaster Reduct Gan, Lanzhou, Peoples R China
学科领域Meteorology & Atmospheric Sciences
所属项目编号National Science Foundation of China [91437217, 41275061, 41471034, 41661144017] ; China National Basic Research Program [2013CBA01800]
资助项目国家自然科学基金项目 ; 国家重点基础研究发展计划以及国家重大科学研究计划(973计划)
项目资助者NSFC ; MOST
DOI10.1175/JCLI-D-16-0041.1
ISSN0894-8755
文章类型Article
语种英语
WOS记录号WOS:000395512300004
IR记录号WOS:000395512300004
第一机构
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文献类型期刊论文
条目标识符http://ir.lzu.edu.cn/handle/262010/189555
Collection大气科学学院
通讯作者Wang, CH (reprint author), Lanzhou Univ, Coll Atmospher Sci, Key Lab Arid Climate Change & Disaster Reduct Gan, Lanzhou, Peoples R China.
Recommended Citation:
GB/T 7714
Wang, CH,Yang, K,Li, YL,et al. Impacts of Spatiotemporal Anomalies of Tibetan Plateau Snow Cover on Summer Precipitation in Eastern China[J]. JOURNAL OF CLIMATE,2017,30(3):885-903.
APA Wang, CH,Yang, K,Li, YL,Wu, D,Bo, Y,&Wang, CH .(2017).Impacts of Spatiotemporal Anomalies of Tibetan Plateau Snow Cover on Summer Precipitation in Eastern China.JOURNAL OF CLIMATE,30(3),885-903.
MLA Wang, CH,et al."Impacts of Spatiotemporal Anomalies of Tibetan Plateau Snow Cover on Summer Precipitation in Eastern China".JOURNAL OF CLIMATE 30.3(2017):885-903.
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