Probable rain regime for são bento do Una-Pernambuco, Brazil
International Journal of Development Research
Probable rain regime for são bento do Una-Pernambuco, Brazil
Received 11th April, 2022; Received in revised form 16th May, 2022; Accepted 03rd June, 2022; Published online 28th July, 2022
Copyright © 2022 Raimundo Mainar Medeiros et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Studies on rainfall classification help in planning the amount of water available for the expansion of human, animal, plant, industrial, agricultural and hydrological activities. To analyze which, among the three probability distributions, best fits the historical series of probable maximum monthly precipitation data in the city of São Bento do Una Pernambuco, Brazil between 1921-2020. The maximum annual precipitation for São Bento do Una - PE was analyzed from 1921 to 2020, with data from the Weather and Climate Agency of the State of Pernambuco. Estimates of probable monthly rainfall were determined for levels of 5, 10, 20, 30, 40, 50, 60, 70, 75, 80, 90 and 95% probability using the probabilistic Gamma model, as described by Thom (1958). The maximum precipitation data fit the log-normal, gamma, and Weibull probability distribution functions and best fit the gamma probability distribution function. São Bento do Uma - Pernambuco needs to adopt strategies to coexist with drought, aiming at the economic growth of the municipality.
