期刊
BIOSCIENCE JOURNAL
卷 32, 期 2, 页码 319-327出版社
UNIV FEDERAL UBERLANDIA
DOI: 10.14393/BJ-v32n2a2016-29394
关键词
Time series adherence; Exponential distribution; Gamma distribution; Normal distribution
资金
- Brazilian Federal Agency for Support and Evaluation of Graduate Education (CAPES)
- National Council for Scientific and Technological Development (CNPq)
The identification of the probability distribution function for the representation of the monthly rainfall is relevant in agricultural planning, mainly regard to the establishment of crops. The aim of this work was to verify the probability distribution (exponential, gamma or normal) which best fits to data monthly rainfall of 14 sites in the state of Mato Grosso do Sul. Rainfall data of 14 stations (sites) of the State of Mato Grosso do Sul it were obtained from the National Water Agency (ANA) database, collected in the period 1975 - 2013. At each of the 168 time series of monthly rainfall was applied the Kolmogorov-Smirnov test to assess the fit to probability distributions exponential, gamma and normal. The normal probability distribution presented the best fit to monthly rainfall series of Mato Grosso do Sul and it can be used for the estimation the monthly rainfall, especially in the rainy season months (October to March). The exponential probability distribution can be used for the estimation of monthly rainfall in the driest months of the year (May to September). Thus, we recommend that these distributions be used in future research, aimed to estimate the probable rainfall for the Mato Grosso do Sul State.
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