3 years ago

Determination of the Best Fit Probability distribution for Monthly Precipitation Data for Twenty Cities in India.

Sristi Ram Dyuthi, Anumandla Sukrutha, Shantanu Desai

We carry out a study of the statistical distribution of rainfall precipitation data for 20 cites in India. We have determined the best-fit probability distribution for these cities from the monthly precipitation data spanning 100 years of observations from 1901 to 2002. To fit the observed data, we considered 10 different distributions. The efficacy of the fits for these distributions are evaluated using four empirical non-parametric goodness-of-fit tests namely Kolmogorov-Smirnov, Anderson-Darling, Chi-Square, Akaike information criterion, and Bayesian Information criterion. Finally, the best-fit distribution using each of these tests are reported for each of the cities by combining results from the model comparison tests. We then find that for most of the cities, Generalized Extreme-Value Distribution or Inverse Gaussian Distribution most adequately fits the observed data.

Publisher URL: http://arxiv.org/abs/1708.03144

DOI: arXiv:1708.03144v2

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