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2020•WSEAS TRANSACTIONS ON HEAT AND MASS TRANSFEROpen access

Barotropic Rossby Waves With Non-zonal Basic Flows, Topography and δ Effect

Hongxin Zhang, Hongxing Cao, Jian Song

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Abstract

Using the multi-scale method, the stability of barotropic Rossby waves with topography and δ effects have been studied in non-zonal basic flow. The influences of the non-zonal basic flows and topography and the parameter δ on the Rossby waves are discussed. The results show that the W-E oriented topography and the N-S oriented topography on the stability and phase speed of the Rossby waves are quite different; the effect of parameter δ is remarkable in the high latitude regions.

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Using the multi-scale method, the stability of barotropic Rossby waves with topography and δ effects have been studied in non-zonal basic flow. The influences of the non-zonal basic flows and topography and the parameter δ on the Rossby waves are discussed. The results show that the W-E oriented topography and the N-S oriented topography on the stability and phase speed of the Rossby waves are quite different; the effect of parameter δ is remarkable in the high latitude regions.

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Available abstract

Using the multi-scale method, the stability of barotropic Rossby waves with topography and δ effects have been studied in non-zonal basic flow. The influences of the non-zonal basic flows and topography and the parameter δ on the Rossby waves are discussed. The results show that the W-E oriented topography and the N-S oriented topography on the stability and phase speed of the Rossby waves are quite different; the effect of parameter δ is remarkable in the high latitude regions.

Key concepts: Rossby wave, Barotropic fluid, Rossby radius of deformation, Rossby number, Geology, Zonal flow (plasma), Geophysics, Stability (learning theory)

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