Generation of zonal flow by resonant Rossby-Haurwitz wave interactions |
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| Authors: | J Burzlaff E DeLoughry P Lynch |
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| Institution: | 1. Dublin City University , Ireland Jurgen.Burzlaff@dcu.ie;3. Dublin City University , Ireland;4. University College Dublin , Ireland |
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| Abstract: | Starting out with two interacting Rossby-Haurwitz waves, the generation of zonal flow is discussed. It is shown that zonal flow cannot be generated by first or second order interactions between two such waves, unless they are exchanging energy with a third wave within a resonant triad. The generation of zonal flow at second order through resonant triad interactions is subsequently established and studied. |
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| Keywords: | Zonal flow Rossby-Haurwitz waves Wave interactions |
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