Rossby Waves Excited by Large Topography and Beta Change in Barotropic Atmosphere

SONG Jian; LIU Quan-sheng; YANG Lian-gui

doi:10.21656/1000-0887.370135

Volume 38 Issue 2

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SONG Jian, LIU Quan-sheng, YANG Lian-gui. Rossby Waves Excited by Large Topography and Beta Change in Barotropic Atmosphere[J]. Applied Mathematics and Mechanics, 2017, 38(2): 216-223. doi: 10.21656/1000-0887.370135

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Rossby Waves Excited by Large Topography and Beta Change in Barotropic Atmosphere

doi: 10.21656/1000-0887.370135

¹College of Sciences, Inner Mongolia University of Technology, Hohhot 010051, P.R.China;²School of Mathematical Sciences, Inner Mongolia University, Hohhot 010021, P.R.China

Funds: The National Natural Science Foundation of China(11362012; 11562014; 41465002)

Received Date: 2016-05-03
Rev Recd Date: 2016-07-02
Publish Date: 2017-02-15

Abstract

Abstract

Based on the potential vorticity equation, the large topography and the change of Rossby wave parameter β with the latitude were considered and parameter δ was introduced. With the normal mode method, the Rossby wave phase velocity formula was obtained in the high latitude regions with the large topography, the Froude number and parameter δ. The research points out that the large topography and the Froude number under the change of β influence the stability of Rossby waves, and these factors usually play a stabilizing part in the Rossby waves.
- Rossby wave,
- parameter δ,
- large topography,
- Froude number

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References(18)

References

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