A semi-analytical model for the propagation of Rossby waves in slowly varying flow |
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| Authors: | Fei Liu JiPing Chao Gang Huang LiCheng Feng |
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| Institution: | LIU Fei 1,2,CHAO JiPing 3,HUANG Gang 1,4 & FENG LiCheng 3 1 Key Laboratory of Regional Climate-Environment Research for Temperate East Asia,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China,2 International Pacific Research Center,University of Hawaii at Manoa,Honolulu 96822,USA,3 National Marine Environmental Forecasting Center,Beijing 100081,4 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics,Institute o... |
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| Abstract: | Instead of using complicated general circulation models (GCMs), a simple semi-analytical model based on ray theory has been used to study energy evolution and ray path of Rossby waves in slowly varying mean flows. Our model yields similar results to those calculated from barotropic models, and also provides a chance to study Rossby waves in the slowly varying flows with both vertical and meridional shears. The model results show that upward Rossby waves can only grow in westerlies, and decay when further as... |
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| Keywords: | Rossby waves ray theory energy evolution semi-analytical slowly varying flow |
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