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DOI | 10.1007/s00382-016-3198-0 |
Limited-area atmospheric energetics: illustration on a simulation of the CRCM5 over eastern North America for December 2004 | |
Clement, Marilys; Nikiema, Oumarou; Laprise, Rene | |
2017-05-01 | |
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 | Canada |
英文摘要 | The seminal work of Lorenz on global atmospheric energetics has allowed understanding much on the physical processes responsible for the general circulation, its maintenance and the development of synoptic-scale weather systems. In mid-latitudes, potential energy generated by the differential heating of the planet by the Sun is converted into kinetic energy by the weather systems and eventually dissipated by friction. While a corresponding study of atmospheric energetics over a limited region would have the advantage of focusing on the details of individual storms and the processes taking place over a domain of interest, such study has encountered several pitfalls and has been challenging. Here we build upon our earlier work on the energy cycle of inter-member variability in ensembles of limited-area model simulations to develop a regionalscale atmospheric energy cycle formulated in terms of available enthalpy and kinetic energy. The approach is then applied to study the energetics of a short simulation made with the fifth-generation of the Canadian Regional Climate Model (CRCM5) over an eastern North American domain for December 2004. The results obtained for a specific storm and monthly mean climatology confirm the current understanding that available enthalpy of the atmospheric time-mean state is mainly generated by the covariance of diabatic heating and temperature, and that the most important conversions of energy are found to correspond to baroclinic processes that take place along the storm track, where perturbations of temperature and wind are important. Finally, transient-eddy kinetic energy is mainly dissipated by friction in the boundary layer. |
英文关键词 | Regional atmospheric energy budget Limited-area domain Regional Climate Model North American climate |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399431900002 |
WOS关键词 | AVAILABLE-ENTHALPY CYCLE ; PERFORMANCE ; ENERGY |
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/35638 |
专题 | 气候变化 |
作者单位 | Univ Quebec Montreal, Dept Sci Terre & Atmosphere, Ctr ESCER Etud & Simulat Climat Echelle Reg, Stn Downtown,POB 8888, Montreal, PQ H3C 3P8, Canada |
推荐引用方式 GB/T 7714 | Clement, Marilys,Nikiema, Oumarou,Laprise, Rene. Limited-area atmospheric energetics: illustration on a simulation of the CRCM5 over eastern North America for December 2004[J]. CLIMATE DYNAMICS,2017,48. |
APA | Clement, Marilys,Nikiema, Oumarou,&Laprise, Rene.(2017).Limited-area atmospheric energetics: illustration on a simulation of the CRCM5 over eastern North America for December 2004.CLIMATE DYNAMICS,48. |
MLA | Clement, Marilys,et al."Limited-area atmospheric energetics: illustration on a simulation of the CRCM5 over eastern North America for December 2004".CLIMATE DYNAMICS 48(2017). |
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