Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-16-0366.1 |
On the Quantification of Imbalance and Inertia-Gravity Waves Generated in Numerical Simulations of Moist Baroclinic Waves Using the WRF Model | |
Mirzaei, Mohammad1; Mohebalhojeh, Ali R.1; Zuelicke, Christoph2; Plougonven, Riwal3 | |
2017-12-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2017 |
卷号 | 74期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | Iran; Germany; France |
英文摘要 | Quantification of inertia-gravity waves (IGWs) generated by upper-level jet-surface front systems and their parameterization in global models of the atmosphere relies on suitable methods to estimate the strength of IGWs. A harmonic divergence analysis (HDA) that has been previously employed for quantification of IGWs combines wave properties from linear dynamics with a sophisticated statistical analysis to provide such estimates. A question of fundamental importance that arises is how the measures of IGW activity provided by the HDA are related to the measures coming from the wave-vortex decomposition (WVD) methods. The question is addressed by employing the nonlinear balance relations of the first-order delta-gamma, the Bolin-Charney, and the first- to third-order Rossby number expansion to carry out WVD. The global kinetic energy of IGWs given by the HDA and WVD are compared in numerical simulations of moist baroclinic waves by the Weather Research and Forecasting (WRF) Model in a channel on the f plane. The estimates of the HDA are found to be 2-3 times smaller than those of the optimal WVD. This is in part due to the absence of a well-defined scale separation between the waves and vortical flows, the IGW estimates by the HDA capturing only the dominant wave packets and with limited scales. It is also shown that the difference between the HDA and WVD estimates is related to the width of the IGW spectrum. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418533900020 |
WOS关键词 | POTENTIAL-VORTICITY INVERSION ; LIFE-CYCLE ; PART I ; BALANCE ; ENERGY ; TURBULENCE ; SPECTRA ; LAYER ; JETS |
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/29241 |
专题 | 地球科学 |
作者单位 | 1.Univ Tehran, Inst Geophys, Tehran, Iran; 2.Univ Rostock, Leibniz Inst Atmospher Phys, Kuhlungsborn, Germany; 3.Univ Paris Saclay, CNRS, Ecole Polytech, Lab Meteorol Dynam,IPSL, Palaiseau, France |
推荐引用方式 GB/T 7714 | Mirzaei, Mohammad,Mohebalhojeh, Ali R.,Zuelicke, Christoph,et al. On the Quantification of Imbalance and Inertia-Gravity Waves Generated in Numerical Simulations of Moist Baroclinic Waves Using the WRF Model[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2017,74(12). |
APA | Mirzaei, Mohammad,Mohebalhojeh, Ali R.,Zuelicke, Christoph,&Plougonven, Riwal.(2017).On the Quantification of Imbalance and Inertia-Gravity Waves Generated in Numerical Simulations of Moist Baroclinic Waves Using the WRF Model.JOURNAL OF THE ATMOSPHERIC SCIENCES,74(12). |
MLA | Mirzaei, Mohammad,et al."On the Quantification of Imbalance and Inertia-Gravity Waves Generated in Numerical Simulations of Moist Baroclinic Waves Using the WRF Model".JOURNAL OF THE ATMOSPHERIC SCIENCES 74.12(2017). |
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