Hydromagnetic planetary waves in vertically sheared zonal flow and transverse magnetic field |
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| Authors: | O M El Mekki |
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| Institution: | (1) School of Mathematical Sciences, University of Khartoum, Khartoum, Sudan |
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| Abstract: | Hydromagnetic planetary waves propagating through a zonal flow and a transverse magnetic field both of which are sheared in the vertical direction are studied. It is found that the effect of the transverse magnetic field is to make planetary waves, which characteristically propagate westwards, propagate eastwards in both westerly and easterly zonal flows. It is also shown that at a critical level the rays are guided by the zonal flow only and that the waves are either attenuated or escalated by an exponential factor as they cross a critical level. |
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