| NONLINEAR SCHRODINGER EQUATION IN THE ROTATIONAL BAROTROPIC ATMOSPHERE AND ATMOSPHERIC BLOCKING |
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| 作者姓名： | 罗德海 |
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| 作者单位： | Chengdu Institute |
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| 摘 要： | In this paper,the WKB method is used to obtain the nonlinear Schr(?)dinger equation satisfied by nonlinearRossby wave in the rotational barotropic atmosphere.It is found that the nonlinear Schr(?)dinger equation hasan envelope solitary wave solution under the condition 1≤m≤2(m the zonal wavenumber),and the phasespeed of envelope solitary Rossby wave in the atmosphere is related to the square of its amplitude linearly,thatis,the larger the amplitude of envelope solitary Rossby wave,the smaller its propagation speed.Farthermore,the blocking high and cut-off low pressures which are consistent with the observations of blocking in the atmo-sphere are obtained by calculating envelope solitary Rossby wave,and the blocking structures persist more thanfive days,the results demonstrate that the envelope solitary Rossby wave is a possible mechanism about theformation,maintenance and breakout of blocking in the atmosphere.
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NONLINEAR SCHRODINGER EQUATION IN THE ROTATIONAL BAROTROPIC ATMOSPHERE AND ATMOSPHERIC BLOCKING |
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| Luo Dehai Chengdu Institute of Meteorology,Chengdu.NONLINEAR SCHRODINGER EQUATION IN THE ROTATIONAL BAROTROPIC ATMOSPHERE AND ATMOSPHERIC BLOCKING[J].Acta Meteorologica Sinica,1991(5). |
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| Authors: | Luo Dehai Chengdu Institute of Meteorology Chengdu |
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| Abstract: | |
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| Keywords: | barotropic model nonlinear Schr(?)dinger equation envelope solitary Rossby wave atmospheric blocking |
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