Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6236 |
Two dominant factors governing the decadal cooling anomalies in winter in East China during the global hiatus period | |
Lei, Ting1,2,3; Li, Shuanglin1,2,3,4; Luo, Feifei1,2; Liu, Na1,2 | |
2019-08-05 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Observational analyses reveal substantial cooling anomalies in East China, during the global hiatus period (1998-2013), particularly in winter. The factors contributing to the winter cooling anomalies and the underlying mechanisms are studied. The results highlight the substantial roles played by two factors: Arctic sea ice reduction (i.e., sea ice area in Barents-Kara Seas, SIA) and the sea surface temperature (SST) cooling anomalies in the Kuroshio extension region (KSST). Together, these factors contribute to approximate 90% of the trend anomaly of East China's area averaged surface air temperature (ECT). The individual contributions from SIA and KSST are investigated based on observational diagnostic analyses and sensitivity experiments. The results show that the contributions from the two factors are similar. Both SIA and KSST induce intensified geopotential height over the mid-to-high latitudes of the Eurasian continent, with the maximum over the Ural Mountains extending toward Lake Baikal. These anomalies intensify the Ural blocking activities and Mongolian cold high. Meanwhile, both forcings cause negative 500-hPa geopotential height (Z500) anomalies over the central North Pacific that extends westward to East Asia, intensifying the climatological East Asian grand trough. However, KSST causes positive Z500 anomalies over the Bering Sea, but SIA does not. The enhanced Ural blocking activities and the deepened East Asian grand trough jointly favour the intensification of the East Asian winter monsoon, thus causing cooling anomalies in East China. |
英文关键词 | East China Kuroshio extension sea ice SST anomaly trend anomalies |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000478998400001 |
WOS关键词 | ARCTIC SEA-ICE ; SURFACE-TEMPERATURE ; INTERANNUAL VARIATIONS ; WARMING HIATUS ; EURASIAN SNOW ; COLD WINTERS ; EL-NINO ; PACIFIC ; CLIMATE ; VARIABILITY |
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/185917 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Climate Change Res Ctr, Beijing, Peoples R China; 2.Chinese Acad Sci, Nansen Zhu Int Res Ctr, Inst Atmospher Phys, Beijing 100029, Peoples R China; 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China; 4.China Univ Geosci, Dept Atmospher Sci, Wuhan, Hubei, Peoples R China |
推荐引用方式 GB/T 7714 | Lei, Ting,Li, Shuanglin,Luo, Feifei,et al. Two dominant factors governing the decadal cooling anomalies in winter in East China during the global hiatus period[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019. |
APA | Lei, Ting,Li, Shuanglin,Luo, Feifei,&Liu, Na.(2019).Two dominant factors governing the decadal cooling anomalies in winter in East China during the global hiatus period.INTERNATIONAL JOURNAL OF CLIMATOLOGY. |
MLA | Lei, Ting,et al."Two dominant factors governing the decadal cooling anomalies in winter in East China during the global hiatus period".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2019). |
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