Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-19-0131.1 |
Linear and Weakly Nonlinear Energetics of Global Nonhydrostatic Normal Modes | |
Raupp, Carlos F. M.; Teruya, Andre S. W.; Silva Dias, Pedro L. | |
2019-12-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2019 |
卷号 | 76期号:12页码:3831-3846 |
文章类型 | Article |
语种 | 英语 |
国家 | Brazil |
英文摘要 | Here the theory of global nonhydrostatic normal modes has been further developed with the analysis of both linear and weakly nonlinear energetics of inertia-acoustic (IA) and inertia-gravity (IG) modes. These energetics are analyzed in the context of a shallow global nonhydrostatic model governing finite-amplitude perturbations around a resting, hydrostatic, and isothermal background state. For the linear case, the energy as a function of the zonal wavenumber of the IA and IG modes is analyzed, and the nonhydrostatic effect of vertical acceleration on the IG waves is highlighted. For the nonlinear energetics analysis, the reduced equations of a single resonant wave triad interaction are obtained by using a pseudoenergy orthogonality relation. Integration of the triad equations for a resonance involving a short harmonic of an IG wave, a planetary-scale IA mode, and a short IA wave mode shows that an IG mode can allow two IA modes to exchange energy in specific resonant triads. These wave interactions can yield significant modulations in the dynamical fields associated with the physical-space solution with periods varying from a daily time scale to almost a month long. |
英文关键词 | Dynamics Inertia-gravity waves Nonlinear dynamics Waves atmospheric |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000499465600001 |
WOS关键词 | BAROTROPIC PRIMITIVE EQUATIONS ; RESONANT WAVE INTERACTIONS ; ONE-LAYER MODEL ; GRAVITY-WAVES ; HYDROSTATIC ADJUSTMENT ; HORIZONTAL COMPONENT ; TROPICAL ATMOSPHERE ; EQUATORIAL WAVES ; REPRESENTATION ; PROPAGATION |
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/226009 |
专题 | 环境与发展全球科技态势 |
作者单位 | Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Sao Paulo, SP, Brazil |
推荐引用方式 GB/T 7714 | Raupp, Carlos F. M.,Teruya, Andre S. W.,Silva Dias, Pedro L.. Linear and Weakly Nonlinear Energetics of Global Nonhydrostatic Normal Modes[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2019,76(12):3831-3846. |
APA | Raupp, Carlos F. M.,Teruya, Andre S. W.,&Silva Dias, Pedro L..(2019).Linear and Weakly Nonlinear Energetics of Global Nonhydrostatic Normal Modes.JOURNAL OF THE ATMOSPHERIC SCIENCES,76(12),3831-3846. |
MLA | Raupp, Carlos F. M.,et al."Linear and Weakly Nonlinear Energetics of Global Nonhydrostatic Normal Modes".JOURNAL OF THE ATMOSPHERIC SCIENCES 76.12(2019):3831-3846. |
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