New Approach to Study the Evolution of Rossby Wave Packet

Ren Shuzhan

doi:10.1007/BF02657366

Impact Factor: 5.8

Volume 8 Issue 1

Jan. 1991

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Article > ADVANCES IN ATMOSPHERIC SCIENCES > 1991 > 8(1): 79-86

New Approach to Study the Evolution of Rossby Wave Packet

Ren Shuzhan

1.
LASG, Institute of Atmospheric Physics, Academia Sinica, Beijing 100080

Ren Shuzhan

doi: 10.1007/BF02657366

Abstract
References
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Abstract:
The average variational principle was employed in this paper to study the evolution of large-scale and slowly va-rying Rossby wave packet with basic flow both in barotropic and baroclinic atmospheres. The evolution of the struc-ture of Rossby wave packet with both time and space was studied. The results obtained in this paper are similar to the results of by WKBJ method. In addition, the dispersive process of the wave packet was analysed by taking Gaussian type wave packet as an initial disturbance. The valid time scale for application of wave packet theory in the atmos-phere was obtained.
References

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Manuscript History

Manuscript received: 10 January 1991

Manuscript revised: 10 January 1991

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

New Approach to Study the Evolution of Rossby Wave Packet

Ren Shuzhan

1. LASG, Institute of Atmospheric Physics, Academia Sinica, Beijing 100080

Manuscript received: 1991-01-10
Manuscript revised: 1991-01-10

Abstract: The average variational principle was employed in this paper to study the evolution of large-scale and slowly va-rying Rossby wave packet with basic flow both in barotropic and baroclinic atmospheres. The evolution of the struc-ture of Rossby wave packet with both time and space was studied. The results obtained in this paper are similar to the results of by WKBJ method. In addition, the dispersive process of the wave packet was analysed by taking Gaussian type wave packet as an initial disturbance. The valid time scale for application of wave packet theory in the atmos-phere was obtained.