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DOI | 10.1002/2017JD027171 |
Simulation of the Central Indian Ocean Mode in CESM: Implications for the Indian Summer Monsoon System | |
Zhou, Lei1,2,3; Murtugudde, Raghu4; Neale, Richard B.5; Jochum, Markus6 | |
2018-01-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:1页码:58-72 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA; Denmark |
英文摘要 | The simulation of the Indian summer monsoon and its pronounced intraseasonal component in a modern climate model remains a significant challenge. Recently, using observations and reanalysis products, the central Indian Ocean (CIO) mode was found to be a natural mode in the ocean-atmosphere coupled system and also shown to have a close mechanistic connection with the monsoon intraseasonal oscillation (MISO). In this study, the simulation of the actual CIO mode in historical Community Earth System Model (CESM) outputs is assessed by comparing with observations and reanalysis products. The simulation of the Madden-Julian Oscillation, a major component of tropical intraseasonal variabilities (ISVs), is satisfactory. However, the CIO mode is not well captured in any of the CESM simulations considered here. The force and response relationship between the atmosphere and the ocean associated with the CIO mode in CESM is opposite to that in nature. The simulated meridional gradient of large-scale zonal winds is too weak, which precludes the necessary energy conversion from the mean state to the ISVs and cuts off the energy source to MISO in CESM. The inability of CESM to reproduce the CIO mode seen clearly in nature highlights the CIO mode as a new dynamical framework for diagnosing the deficiencies in Indian summer monsoon simulation in climate models. The CIO mode is a coupled metric for evaluating climate models and may be a better indicator of a model's skill to accurately capture the tropical multiscale interactions over subseasonal to interannual timescales. |
英文关键词 | Central Indian Ocean mode Indian summer monsoon CESM monsoon simulation intraseasonal variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000423433500004 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; ASIAN-AUSTRALIAN MONSOON ; SEA-SURFACE TEMPERATURE ; INTRASEASONAL OSCILLATIONS ; BOREAL SUMMER ; INTERANNUAL VARIABILITY ; CLIMATE MODELS ; COUPLED MODEL ; PART I ; 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/33951 |
专题 | 气候变化 |
作者单位 | 1.Shanghai Jiao Tong Univ, Inst Oceanog, Shanghai, Peoples R China; 2.Qingdao Natl Lab Marine Sci & Technol, Lab Reg Oceanog & Numer Modeling, Qingdao, Peoples R China; 3.Second Inst Oceanog, State Key Lab Satellite Ocean Environm Dynam, Hangzhou, Zhejiang, Peoples R China; 4.Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA; 5.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA; 6.Univ Copenhagen, Niels Bohr Inst, Copenhagen, Denmark |
推荐引用方式 GB/T 7714 | Zhou, Lei,Murtugudde, Raghu,Neale, Richard B.,et al. Simulation of the Central Indian Ocean Mode in CESM: Implications for the Indian Summer Monsoon System[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(1):58-72. |
APA | Zhou, Lei,Murtugudde, Raghu,Neale, Richard B.,&Jochum, Markus.(2018).Simulation of the Central Indian Ocean Mode in CESM: Implications for the Indian Summer Monsoon System.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(1),58-72. |
MLA | Zhou, Lei,et al."Simulation of the Central Indian Ocean Mode in CESM: Implications for the Indian Summer Monsoon System".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.1(2018):58-72. |
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