On the occurrences of dry and wet sequences in the Brahmaputra valley |
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| Authors: | S Kalita S K Sarmah |
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| Institution: | 1. Department of Environmental Science, Gauhati University, 781 014, Gauhati, India
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| Abstract: | Occurrence of dry and wet days in the Brahmaputra Valley has been studied using a first-order Markov Chain model. The model is fitted to the daily rainfall series recorded at ten stations widely distributed in the valley. The adequacy of the model is tested and found suitable. At all the stations, dry and wet spells having different durations follow geometric distribution. For pre-monsoon and monsoon seasons, the expected dry and wet days, the expected length of a weather cycle and the return period of dry spells having different, durations are calculated, and the results for different stations are compared. |
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