Probability analysis of 5-day antecedent rainfall at different return periods and seasons for Doimukh (Itanagar), Arunachal Pradesh
DOI:
https://doi.org/10.53550/Keywords:
5 days antecedent rainfall, Antecedent moisture conditions (AMCs), Probability distribution functionAbstract
Daily rainfall data recorded at Doimukh station for a period of 26 years (1988- 2013) were used in this analysis. The 5 days total antecedent rainfall prior to the storm was calculated under three different seasons, i.e. pre-monsoon (March to May), monsoon (June to October) and post- monsoon (November to February). The 5 days antecedent rainfall was classified into AMC-I, AMC-II and AMC-III groups for all the seasons. Four probability distributions were fitted to 5 days antecedent rainfall data for different groups and 5 days antecedent rainfall at 1 to 100 years return period were calculated for the study site.
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