Hydrometeorological Aspects of Floods in India |
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| Authors: | Dhar O N Nandargi Shobha |
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| Institution: | (1) Indian Institute of Tropical Meteorology, Pune -, 411 008, India |
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| Abstract: | The Indian sub-continent being located in the heart of the summermonsoon belt, receives in most parts more than 75% of its annual rainfall during the fourmonsoon months of June to September. As the bulk of summer monsoon rainfall occurs withina period of four months, naturally majority of floods occur in Indian rivers during thisseason only. The ground conditions also help in generating high percentage of run-offbecause of the antecedent wet conditions caused by rainy spells occurring within the monsoonperiod itself. Besides mentioning different weather systems, which cause heavy rainfall and consequentfloods, a detailed discussion of 15 years' floods in different river systems has alsobeen given in the article. This study has shown that the flood problem in India is mostly confinedto the states located in the Indo-Gangetic plains, northeast India and occasionally in therivers of Central India. |
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| Keywords: | Hydrometeorology floods cyclonic storms seasonal monsoon trough break monsoon situations and rainstorm zones |
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