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DOI | 10.1029/2018JD029174 |
Impacts of Wintertime Extratropical Cyclones on Temperature and Precipitation Over Northeastern China During 1979-2016 | |
Lin, Daiyu1,2; Huang, Wenyu1,2; Yang, Zifan1,2; He, Xinsheng1,2; Qiu, Tianpei1,2; Wang, Bin1,2,3; Wright, Jonathon S.1,2 | |
2019-02-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:3页码:1514-1536 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | This study examines the synoptic impacts of wintertime extratropical cyclones on northeastern China. The 181 analyzed cyclones mainly originate from eastern Mongolia and dissipate over the North Pacific Ocean. Precursor negative geopotential height anomalies for these cyclones emerge over continental areas near the Barents and Kara Seas. Baroclinic instability and midlatitude westerly winds are the dominant factors driving the development and movement of these cyclones from their precursor signals. Owing to the southeastward migration of the cyclones, temperature over northeastern China first increases and then decreases, resulting in a significant increase in the frequency of extreme weather. These cyclones contribute about 70.6% of the extreme precipitation days over northeastern China. Relative moisture contributions from the East China Sea, the Sea of Japan, and East Asia are all anomalously large during cyclones associated with extreme precipitation days, with moisture from these regions entering northeastern China mainly through its southern and western boundaries. Temperature variations over northeastern China play a critical role in the accumulation of moisture for extreme precipitation and the timing of that precipitation. Moisture transport initially contributes to an increase in precipitable water due to warm temperature anomalies. The added precipitable water is then released as extreme precipitation when the atmosphere over northeastern China starts to cool. |
英文关键词 | extratropical cyclones northeastern China precursor signal heat budget extreme precipitation moisture source |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000459377000021 |
WOS关键词 | NORTHERN-HEMISPHERE WINTER ; STORM TRACKS ; COLD SURGE ; INTERANNUAL VARIABILITY ; POTENTIAL VORTICITY ; LAGRANGIAN ANALYSIS ; UPPER TROPOSPHERE ; LEE CYCLOGENESIS ; AUGUST 2002 ; SNOW DEPTH |
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/33276 |
专题 | 气候变化 |
作者单位 | 1.Tsinghua Univ, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China; 2.Tsinghua Univ, Dept Earth Syst Sci, Beijing, Peoples R China; 3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Lin, Daiyu,Huang, Wenyu,Yang, Zifan,et al. Impacts of Wintertime Extratropical Cyclones on Temperature and Precipitation Over Northeastern China During 1979-2016[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(3):1514-1536. |
APA | Lin, Daiyu.,Huang, Wenyu.,Yang, Zifan.,He, Xinsheng.,Qiu, Tianpei.,...&Wright, Jonathon S..(2019).Impacts of Wintertime Extratropical Cyclones on Temperature and Precipitation Over Northeastern China During 1979-2016.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(3),1514-1536. |
MLA | Lin, Daiyu,et al."Impacts of Wintertime Extratropical Cyclones on Temperature and Precipitation Over Northeastern China During 1979-2016".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.3(2019):1514-1536. |
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