Variability in temperature extremes across the Tibetan Plateau and its non-uniform responses to different ENSO types
文献类型：期刊论文
| 作者 | Yong, Zhiwei; Wang, Zegen; Xiong, Junnan; Ye, Chongchong; Sun, Huaizhang; Wu, Shaojie |
| 刊名 | CLIMATIC CHANGE
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 176期号:7页码:91 |
| 关键词 | Temperature extremes Eastern Pacific ENSO Central Pacific ENSO Atmospheric circulation anomalies Tibetan Plateau |
| ISSN号 | 0165-0009 |
| DOI | 10.1007/s10584-023-03566-5 |
| 产权排序 | 2 |
| 文献子类 | Article |
| 英文摘要 | Variability of extreme temperatures has an important influence on sensitive ecosystem and human activities on the Tibetan Plateau (TP). Nevertheless, the uncertainties of different El Nino-Southern Oscillation (ENSO) effects on extreme temperatures over the TP are poorly understood. Thus, this study focuses on variations in temperature extremes across the TP during 1980-2020 based on the daily maximum temperature and minimum temperature. We quantitatively examine the effects of different ENSO phases and related large-scale atmospheric circulation anomalies on the changes in temperature extremes according to different ENSO phases. The results show that the number of extreme cold events decreased significantly on the TP, while the number of extreme warm events increased significantly from 1980 to 2020. Moreover, our results suggest that the response of temperature extremes differs between the Eastern Pacific (EP) and Central Pacific (CP) ENSO. In particular, EP El Nino episodes result in more extreme cold events (r = 0.36, P < 0.01), whereas the influence of the CP El Nino episodes on the temperature extreme over the TP is weak. The correlation coefficients between the CP ENSO index and daily minimum temperature (daily maximum temperature) are 0.46 (0.49). In addition, the developing and decaying phases of ENSO had an essential influence on temperature extreme variability on the TP through the modulation of large-scale atmospheric circulation anomalies. Sea surface temperature during the different ENSO phases induced a Walker circulation anomaly in the tropical Pacific and ascending motion over the tropical Indian Ocean, which contributes to the generation of the anomalies of wind and geopotential height around the TP, inducing non-uniform responses of temperature extremes over the TP. In conclusion, ENSO is a critical factor that influences temperature extremes on the TP. This study provides some insight into understanding the dynamics of regional extreme temperatures during different ENSO episodes. |
| WOS关键词 | DAILY CLIMATE EXTREMES ; PRECIPITATION ; PACIFIC ; CHINA ; IMPACTS ; INDEXES ; EVENTS |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001022380000001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/194569]  |
| 专题 | 资源与环境信息系统国家重点实验室_外文论文 |
| 作者单位 | 1.Institute of Geographic Sciences & Natural Resources Research, CAS 2.Southwest Petroleum University 3.Chinese Academy of Sciences 4.Beijing Normal University 5.Sun Yat Sen University |
| 推荐引用方式 GB/T 7714 | Yong, Zhiwei,Wang, Zegen,Xiong, Junnan,et al. Variability in temperature extremes across the Tibetan Plateau and its non-uniform responses to different ENSO types[J]. CLIMATIC CHANGE,2023,176(7):91. |
| APA | Yong, Zhiwei,Wang, Zegen,Xiong, Junnan,Ye, Chongchong,Sun, Huaizhang,&Wu, Shaojie.(2023).Variability in temperature extremes across the Tibetan Plateau and its non-uniform responses to different ENSO types.CLIMATIC CHANGE,176(7),91. |
| MLA | Yong, Zhiwei,et al."Variability in temperature extremes across the Tibetan Plateau and its non-uniform responses to different ENSO types".CLIMATIC CHANGE 176.7(2023):91. |
入库方式： OAI收割
来源：地理科学与资源研究所
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