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DOI | 10.1007/s00382-019-05024-4 |
Response of the anomalous western North Pacific anticyclone during El Nino mature winter to global warming | |
Wang, Yuhao1; He, Chao2; Li, Tim1,3,4 | |
2019-11-11 | |
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; USA |
英文摘要 | The western North Pacific subtropical anticyclone (WNPAC) usually fully develops during El Nino mature winter, and it is a key system connecting East Asian climate to ENSO. Based on a comparison between the RCP8.5 and the historical experiment of 30 coupled models from the CMIP5, we find that the response of the intensity in the anomalous WNPAC during El Nino mature winter remains almost unchanged under global warming. Taken the anomalous WNPAC as a two-step response to the diabatic heating anomaly over the equatorial central-eastern Pacific, numerical experiments based on GFDL_dry model and diagnoses are performed to explore the underlying mechanisms. The results demonstrate that the competition between the enhanced diabatic heating anomaly over the equatorial central-eastern Pacific and the enhanced mean state static stability results in a weakly enhanced low-level northeasterly wind anomaly over the WNP. Under an enhanced negative meridional gradient of the mean state low-level specific humidity, the negative moist enthalpy advection anomaly is enhanced over the WNP, which favors the enhanced negative precipitation anomaly. The negative precipitation anomaly over the WNP is thus enhanced due to atmospheric internal processes rather than the changed local SST anomaly. Finally, the competition between the enhanced local diabatic heating anomaly over the WNP and the enhanced mean state static stability results in an almost unchanged anomalous WNPAC. |
英文关键词 | Global warming El Nino Western North Pacific anticyclone Diabatic heating anomaly Mean state static stability Moist enthalpy advection |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000495689300001 |
WOS关键词 | ASIAN SUMMER MONSOON ; INDIAN-OCEAN ; INTERANNUAL VARIABILITY ; THERMODYNAMIC PROCESSES ; SOUTHERN OSCILLATION ; HAZE DAYS ; ENSO ; CLIMATE ; MAINTENANCE ; IMPACT |
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/224231 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast Meteorol Disaster, Joint Int Res Lab Climate & Environm Change ILCEC, Key Lab Meteorol Disaster,Minist Educ KLME, Nanjing, Jiangsu, Peoples R China; 2.Jinan Univ, Inst Environm & Climate Res, Guangzhou, Guangdong, Peoples R China; 3.Univ Hawaii, Sch Ocean & Earth Sci & Technol, Int Pacific Res Ctr, Honolulu, HI 96822 USA; 4.Univ Hawaii, Sch Ocean & Earth Sci & Technol, Dept Atmospher Sci, Honolulu, HI 96822 USA |
推荐引用方式 GB/T 7714 | Wang, Yuhao,He, Chao,Li, Tim. Response of the anomalous western North Pacific anticyclone during El Nino mature winter to global warming[J]. CLIMATE DYNAMICS,2019. |
APA | Wang, Yuhao,He, Chao,&Li, Tim.(2019).Response of the anomalous western North Pacific anticyclone during El Nino mature winter to global warming.CLIMATE DYNAMICS. |
MLA | Wang, Yuhao,et al."Response of the anomalous western North Pacific anticyclone during El Nino mature winter to global warming".CLIMATE DYNAMICS (2019). |
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