Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-017-3918-0 |
Energetics of transient-eddy and inter-member variabilities in global and regional climate model simulations | |
Nikiema, Oumarou; Laprise, Rene; Dugas, Bernard | |
2018-07-01 | |
发表期刊 | CLIMATE DYNAMICS |
ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2018 |
卷号 | 51页码:249-268 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada |
英文摘要 | Available Enthalpy (AE) and Kinetic Energy (KE) associated with the natural Transient-Eddy (or Time-Variability, TV) and models' Internal Variability (or Inter-member Variability, IV) are studied using two ensembles of simulations, one from a nested Regional Climate Model (RCM) driven by reanalyses over a regional domain covering eastern North America, and one from a Global Climate Model (GCM), and the Era-interim reanalyses as reference. The fields of TV and IV energies are first examined, both globally and over the regional domain. Results from GCM simulations reveal that GCM TV is similar to that of reanalyses, confirming the realism of the GCM simulations, and TV and IV are approximately equal, in agreement with the ergodicity property. For RCM simulations, TV energies are similar to those of reanalyses driving them. On the other hand, the IV energies of reanalyses-driven RCM simulations are much smaller than those of the GCM, because of the control exerted by the lateral boundary conditions imposed in nested models. While GCM IV energies present similar seasonal variations as the TV energies, the RCM IV greatly fluctuates in time, with short episodes of large variations. The second part of this study is devoted to the analysis of TV and IV energetic budgets. Results indicate similar physical interpretations of conversions, generations and destructions for both TV and IV energetics, although TV is associated with natural phenomena of weather disturbances and IV is a model feature contributing to the uncertainties of simulations. |
英文关键词 | Ensemble of climate simulations Transient eddies Internal variability Available enthalpy Kinetic energy Atmospheric energy conversions |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435522000015 |
WOS关键词 | AVAILABLE POTENTIAL-ENERGY ; ENTHALPY CYCLE ; ENSEMBLE ; SYSTEM ; SENSITIVITY ; EQUATIONS ; DOMAIN ; SCALE |
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/36083 |
专题 | 气候变化 |
作者单位 | Univ Quebec Montreal UQAM, ESCER Ctr, Dept Sci Terre & Atmosphere, Montreal, PQ, Canada |
推荐引用方式 GB/T 7714 | Nikiema, Oumarou,Laprise, Rene,Dugas, Bernard. Energetics of transient-eddy and inter-member variabilities in global and regional climate model simulations[J]. CLIMATE DYNAMICS,2018,51:249-268. |
APA | Nikiema, Oumarou,Laprise, Rene,&Dugas, Bernard.(2018).Energetics of transient-eddy and inter-member variabilities in global and regional climate model simulations.CLIMATE DYNAMICS,51,249-268. |
MLA | Nikiema, Oumarou,et al."Energetics of transient-eddy and inter-member variabilities in global and regional climate model simulations".CLIMATE DYNAMICS 51(2018):249-268. |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论