Probability density functions for the estimation of monthly rainfall

Jailson Araujo Rodrigues, Jaime dos Santos Filho, Lucas Monteiro Chaves


The objective of this work was to evaluate the potential of gamma, log-normal and Weibull distributions modeling of monthly precipitation in the city of Bento Gonçalves, Rio Grande do Sul. We used a series of monthly rainfall from January 2001 to December 2011. Adherence to the distributions of rainfall conditions was verified using the Kolmogorov-Sminorv test. The three distributions were adherent. However, the results indicated that the gamma model fit better rainfall conditions in the city of Bento Gonçalves.


Comparison of Models; Gamma Distribution; Lognormal Distribution; Weibull Distribution


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Semin., Ciênc. Exatas Tecnol.
Londrina - PR - Brazil
E-ISSN: 16790375
DOI: 10.5433/1679-0375
This journal is licensed with a license Creative Commons Attribution-NonCommercial 4.0 International.