Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-016-3166-8 |
Model performance metrics and process diagnostics for boreal summer intraseasonal variability | |
Neena, J. M.1,3; Waliser, Duane1,2; Jiang, Xianan1 | |
2017-03-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2017 |
卷号 | 48 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; India |
英文摘要 | Representation of the boreal summer intraseasonal oscillations (BSISO) is evaluated in the 20-year climate simulations from 27 general circulation models (GCMs), produced as part of a global multi-model evaluation project coordinated to study the vertical structure and physical processes of the Madden-Julian oscillation (MJO). Model performance metrics are developed to assess the simulated BSISO characteristics, with a special focus on its northward propagation over the Asian monsoon domain. Several process-oriented diagnostics developed by the MJO community are also tested for the BSISO. Simulating the phase speed and meridional extent of BSISO northward propagation, the northwest-southeast tilted rain-band structure and the quasi-biweekly mode are identified as some of the persisting problems for many GCMs. Interestingly, many of the GCMs, which capture BSISO eastward propagation, also show good fidelity in simulating BSISO northward propagation. Meridional vertical profiles of anomalous wind, temperature and diabatic heating of BSISO are better simulated in the GCMs that simulate the northward propagation. Process-oriented diagnostics based on seasonal mean vertical shear of zonal and meridional wind, large-scale rain fraction and relative humidity are also examined, but it still remains challenge to find a process diagnostic which is strongly linked to BSISO northward propagation. The complex spatial structure and presence of multi-scale disturbances, demand the development of more focused GCM evaluation metrics and process diagnostics specifically for the BSISO. |
英文关键词 | Boreal summer intraseasonal oscillation Process oriented diagnostic metrics Multi-model evaluation |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000395060900016 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; VERTICAL STRUCTURE ; INTERANNUAL VARIABILITY ; SUBSEASONAL VARIABILITY ; PHYSICAL PROCESSES ; EQUATORIAL WAVES ; CLOUD CLUSTERS ; DIURNAL CYCLE ; INDIAN-OCEAN ; WATER-VAPOR |
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/36184 |
专题 | 气候变化 |
作者单位 | 1.Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90095 USA; 2.CALTECH, Jet Prop Lab, Pasadena, CA USA; 3.Indian Inst Sci Educ & Res, Pune, Maharashtra, India |
推荐引用方式 GB/T 7714 | Neena, J. M.,Waliser, Duane,Jiang, Xianan. Model performance metrics and process diagnostics for boreal summer intraseasonal variability[J]. CLIMATE DYNAMICS,2017,48. |
APA | Neena, J. M.,Waliser, Duane,&Jiang, Xianan.(2017).Model performance metrics and process diagnostics for boreal summer intraseasonal variability.CLIMATE DYNAMICS,48. |
MLA | Neena, J. M.,et al."Model performance metrics and process diagnostics for boreal summer intraseasonal variability".CLIMATE DYNAMICS 48(2017). |
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