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DOI | 10.1007/s00382-019-05027-1 |
Influence of winter Arctic sea ice concentration change on the El Nino-Southern Oscillation in the following winter | |
Chen, Shangfeng1,4; Wu, Renguang2; Chen, Wen1,4; Yu, Bin3 | |
2019-11-05 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
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 | The present study reveals a close connection between the winter Arctic sea ice concentration (ASIC) change over the Greenland-Barents Seas (GBS) and the El Nino-Southern Oscillation (ENSO) in the following winter. When there is more winter ASIC over the GBS, an El Nino-like sea surface temperature (SST) warming tends to occur in the tropical central-eastern Pacific (TCEP) during the following winter. It is found that the winter ASIC increase over the GBS triggers an atmospheric wave train propagating southeastward from the high latitude Eurasia towards the subtropical North Pacific, with cyclonic wind anomalies over the subtropical North Pacific. A barotropic model experiment with anomalous convergence prescribed around the GBS reproduces reasonably well the atmospheric wave train. The induced spring SST warming and associated anomalous atmospheric heating over the subtropical North Pacific play an essential role in the formation and maintenance of lower-level westerly wind anomalies over the western tropical Pacific. These westerly wind anomalies induce SST warming in the TCEP during the following summer via triggering an eastward propagating equatorial warm Kelvin wave. The summer TCEP SST warming further develops into an El Nino event in the following winter via a Bjerknes-like positive air-sea feedback process. This result suggests that the winter ASIC change around the GBS is a potential predictor of the ENSO events with a lead time of 1 year. |
英文关键词 | Arctic sea ice ENSO Atmospheric wave train Westerly winds |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000494426500002 |
WOS关键词 | EURASIAN SNOW COVER ; SEASONAL FOOTPRINTING MECHANISM ; SURFACE AIR-TEMPERATURE ; WESTERLY WIND BURSTS ; WAVE-ACTIVITY FLUX ; INTERANNUAL VARIABILITY ; ATMOSPHERIC BRIDGE ; ENSO ; PACIFIC ; MONSOON |
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/224220 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing, Peoples R China; 2.Zhejiang Univ, Sch Earth Sci, Hangzhou, Zhejiang, Peoples R China; 3.Environm & Climate Change Canada, Climate Res Div, Toronto, ON, Canada; 4.Univ Chinese Acad Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Shangfeng,Wu, Renguang,Chen, Wen,et al. Influence of winter Arctic sea ice concentration change on the El Nino-Southern Oscillation in the following winter[J]. CLIMATE DYNAMICS,2019. |
APA | Chen, Shangfeng,Wu, Renguang,Chen, Wen,&Yu, Bin.(2019).Influence of winter Arctic sea ice concentration change on the El Nino-Southern Oscillation in the following winter.CLIMATE DYNAMICS. |
MLA | Chen, Shangfeng,et al."Influence of winter Arctic sea ice concentration change on the El Nino-Southern Oscillation in the following winter".CLIMATE DYNAMICS (2019). |
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