Orographic effects on the southwest monsoon: A review |
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| Authors: | Sulochana Gadgil |
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| Institution: | (1) Centre for Theoretical Studies, Indian Institute of Science, 560012 Bangalore, India |
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| Abstract: | An overview of the problem of orographic effects on the southwest monsoon using the contributions of all the available analytical and numerical models is attempted. A quasi-geostrophic model is applied to deduce the effect of the topographic complex on the Indian peninsula. This model suggests that the southward bending of the low-level isobars on the peninsula can be ascribed to the topographically-induced southward velocity. This southward velocity triggers a Rossby wave to the east of the peninsula which is manifested as a trough on the southern Bay of Bengal. |
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| Keywords: | Monsoon quasi-geostrophic model orographic effects on flow |
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