Quantifying the Role of Oceanic Feedbacks on ENSO Asymmetry
文献类型：期刊论文
| 作者 | Guan, Cong1,2,3,4,5 ; McPhaden, Michael J.6; Wang, Fan1,2,4,5; Hu, Shijian1,2,4,5
|
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2019-02-28 |
| 卷号 | 46期号:4页码:2140-2148 |
| 关键词 | ENSO asymmetry oceanic feedback thermocline feedback discharge recharge oscillator zonal advective feedback |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2018GL081332 |
| 通讯作者 | Guan, Cong(congguan@qtho.ac.cn) |
| 英文摘要 | The role of oceanic feedbacks in determining the asymmetry of El Nino-Southern Oscillation (ENSO) magnitude, spatial structure, and duration is quantified on the basis of a novel temperature variance budget. Results confirm previous studies that in the eastern Pacific, El Nino warm temperature anomalies are larger in magnitude than La Nina cold temperature anomalies mainly due to stronger positive oceanic feedbacks for El Nino. We find that La Nina cold anomalies are typically stronger than El Nino warm anomalies in the central Pacific with a faster growth rate for cold anomalies, due to a stronger positive thermocline feedback and weaker nonlinear damping. The thermocline feedback related to recharge oscillator dynamics plays a dominate role and leads to asymmetry in the duration of El Nino and La Nina events. In particular, the thermocline feedback becomes significantly negative during the late decaying phase of El Nino and speeds up its demise. |
| 资助项目 | National Natural Science Foundation of China[41776018] ; National Natural Science Foundation of China[41730534] ; China Postdoctoral Science Foundation[2017M622289] ; Qingdao postdoctoral application research project ; National Program on Global Change and Air-Sea Interaction[GASI-IPOVAI-01-01] ; Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SYS023] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000461855600027 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/154917]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 通讯作者 | Guan, Cong |
| 作者单位 | 1.Cninese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Coll Marine Sci, Qingdao, Peoples R China 3.Shandong Acad Sci, Inst Oceanog Instrumentat, Qingdao, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China 5.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China 6.NOAA, Pacific Marine Environm Lab, 7600 Sand Point Way Ne, Seattle, WA 98115 USA |
| 推荐引用方式 GB/T 7714 | Guan, Cong,McPhaden, Michael J.,Wang, Fan,et al. Quantifying the Role of Oceanic Feedbacks on ENSO Asymmetry[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(4):2140-2148. |
| APA | Guan, Cong,McPhaden, Michael J.,Wang, Fan,&Hu, Shijian.(2019).Quantifying the Role of Oceanic Feedbacks on ENSO Asymmetry.GEOPHYSICAL RESEARCH LETTERS,46(4),2140-2148. |
| MLA | Guan, Cong,et al."Quantifying the Role of Oceanic Feedbacks on ENSO Asymmetry".GEOPHYSICAL RESEARCH LETTERS 46.4(2019):2140-2148. |
入库方式： OAI收割
来源：海洋研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。