Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD030583 |
The Large-Scale Circulation Patterns Responsible for Extreme Precipitation Over the North China Plain in Midsummer | |
Zhao, Yang1,2; Xu, Xiangde1; Li, Jiao3; Zhang, Rong1; Kang, Yanzhen4; Huang, Wubin5; Xia, Yu6; Liu, Di6; Sun, Xiaoyun6 | |
2019-12-11 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Peoples R China; Canada |
英文摘要 | Extreme precipitation events over the North China Plain (NCP) in midsummer during 1979-2016 are classified into two types using objective cluster analysis: a northern pattern with heavy precipitation and a central-southern pattern with relatively moderate precipitation. The large-scale circulation patterns responsible for the midsummer extreme precipitation are then determined. In the northern NCP type, extreme precipitation accompanies a zonal gradient between an anomalous low-pressure system at high latitudes and the westward- and northward-extended western North Pacific subtropical high (WNPSH). Anomalous southwesterlies flow is driven by a trough that extended from the high latitudes to the northern NCP, where it encounters southeasterly wind flow induced by an anomalously northward-extended WNPSH and a southern low-pressure anomaly at low latitudes. Anomalous amounts of moisture are mainly transported from the tropical western Pacific by southeasterlies. In the central-southern NCP type, remarkable anomalous low-pressure systems control all of northern China with centers over the Sichuan Basin and northeast China. The westward-extended WNPSH occupies further south than that of the northern NCP type. The southwesterly low-level jet (LLJ) is more prevalent in the central-southern NCP type than in the northern NCP type. This southwesterly LLJ plays an important role in extreme precipitation over the central-southern NCP by transporting moisture primarily from the Bay of Bengal and the South China Sea and generating convergence. In addition, the upper-level anomalous strong divergence that is anchored over the right entrance of the westerly jet makes a greater contribution to extreme precipitation in the northern type than in the central-southern type. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000501966300001 |
WOS关键词 | TROPOSPHERIC JET-STREAM ; ASIAN SUMMER MONSOON ; HEAVY RAINFALL ; HOURLY PRECIPITATION ; CLIMATE EXTREMES ; TIBETAN PLATEAU ; EVENTS ; TRENDS ; RAINSTORMS ; INTENSITY |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225869 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China; 2.McGill Univ, Dept Atmospher & Ocean Sci, Montreal, PQ, Canada; 3.Henan Prov Climate Ctr, Zhengzhou, Henan, Peoples R China; 4.Lanzhou Univ, Coll Atmospher Sci, Lanzhou, Gansu, Peoples R China; 5.Lanzhou Cent Meteorol Observ, Lanzhou, Gansu, Peoples R China; 6.Nanjing Univ Informat Sci & Technol, Nanjing, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Zhao, Yang,Xu, Xiangde,Li, Jiao,et al. The Large-Scale Circulation Patterns Responsible for Extreme Precipitation Over the North China Plain in Midsummer[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019. |
APA | Zhao, Yang.,Xu, Xiangde.,Li, Jiao.,Zhang, Rong.,Kang, Yanzhen.,...&Sun, Xiaoyun.(2019).The Large-Scale Circulation Patterns Responsible for Extreme Precipitation Over the North China Plain in Midsummer.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES. |
MLA | Zhao, Yang,et al."The Large-Scale Circulation Patterns Responsible for Extreme Precipitation Over the North China Plain in Midsummer".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2019). |
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