Sensitivity of ENSO Variability to Pacific Freshwater Flux Adjustment in the Community Earth System Model
文献类型：期刊论文
| 作者 | Kang Xianbiao1,2,3; Huang Ronghui1,2; Wang Zhanggui1,2,3; Zhang Rong-Hua4
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| 刊名 | ADVANCES IN ATMOSPHERIC SCIENCES
 |
| 出版日期 | 2014-09-01 |
| 卷号 | 31期号:5页码:1009-1021 |
| 关键词 | ENSO freshwater flux CESM |
| 通讯作者 | Kang, XB (reprint author), Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing 100190, Peoples R China. |
| 英文摘要 | The effects of freshwater flux (FWF) on modulating ENSO have been of great interest in recent years. Large FWF bias is evident in Coupled General Circulation Models (CGCMs), especially over the tropical Pacific where large precipitation bias exists due to the so-called "double ITCZ" problem. By applying an empirical correction to FWF over the tropical Pacific, the sensitivity of ENSO variability is investigated using the new version (version 1.0) of the NCAR's Community Earth System Model (CESM1.0), which tends to overestimate the interannual variability of ENSO accompanied by large FWF into the ocean. In response to a small adjustment of FWF, interannual variability in CESM1.0 is reduced significantly, with the amplitude of FWF being reduced due to the applied adjustment part whose sign is always opposite to that of the original FWF field. Furthermore, it is illustrated that the interannual variability of precipitation weakens as a response to the reduced interannual variability of SST. Process analysis indicates that the interannual variability of SST is damped through a reduced FWF-salt-density-mixing-SST feedback, and also through a reduced SST-wind-thermocline feedback. These results highlight the importance of FWF in modulating ENSO, and thus should be adequately taken into account to improve the simulation of FWF in order to reduce the bias of ENSO simulations by CESM. |
| 学科主题 | Meteorology & Atmospheric Sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000341907300002 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/23967]  |
| 专题 | 海洋研究所_海洋环流与波动重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Atmospher Phys, Ctr Monsoon Syst Res, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100029, Peoples R China 3.State Ocean Adm, Natl Marine Environm Forecasting Ctr, Beijing 100081, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kang Xianbiao,Huang Ronghui,Wang Zhanggui,et al. Sensitivity of ENSO Variability to Pacific Freshwater Flux Adjustment in the Community Earth System Model[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2014,31(5):1009-1021. |
| APA | Kang Xianbiao,Huang Ronghui,Wang Zhanggui,&Zhang Rong-Hua.(2014).Sensitivity of ENSO Variability to Pacific Freshwater Flux Adjustment in the Community Earth System Model.ADVANCES IN ATMOSPHERIC SCIENCES,31(5),1009-1021. |
| MLA | Kang Xianbiao,et al."Sensitivity of ENSO Variability to Pacific Freshwater Flux Adjustment in the Community Earth System Model".ADVANCES IN ATMOSPHERIC SCIENCES 31.5(2014):1009-1021. |
入库方式： OAI收割
来源：海洋研究所
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