Ambiente & Água - An Interdisciplinary Journal of Applied Science ISSN 1980-993X – doi:10.4136/1980-993X www.ambi-agua.net E-mail:
[email protected] Intensity-duration-frequency of maximum rainfall in Mato Grosso State ARTICLES doi:10.4136/ambi-agua.2373 Received: 05 Feb. 2019; Accepted: 25 Nov. 2019 Marlus Sabino1* ; Adilson Pacheco de Souza2 ; Eduardo Morgan Uliana2 ; Luana Lisboa3 ; Frederico Terra de Almeida2 ; Cornélio Alberto Zolin4 1Instituto de Física. Universidade Federal de Mato Grosso (UFMT), Avenida Fernando Corrêa da Costa, n° 2367, CEP: 78060-900, Cuiabá, MT, Brazil. 2Instituto de Ciências Agrárias e Ambientais. Universidade Federal de Mato Grosso (UFMT), Avenida Alexandre Ferronatto, n° 1200, CEP: 78557-267, Sinop, MT, Brazil. E-mail:
[email protected],
[email protected],
[email protected] 3Superintendência Regional De Manaus. Companhia de Pesquisa de Recursos Minerais (CPRM), Avenida André Araújo, n° 2160, CEP: 69060-000, Manaus, AM, Brazil. E-mail:
[email protected] 4Embrapa Agrossilvipastoril, Rodovia dos Pioneiros MT-222, Km 2,5, CEP: 78550-970, Sinop, MT, Brazil. E-mail:
[email protected] *Corresponding author. E-mail:
[email protected] ABSTRACT Intensive rainfall is an important meteorological variable that is of technical interest in hydraulic projects. This study therefore generated Intensity-Duration-Frequency equations (IDF) for 14 weather stations in Mato Grosso State, based on pluviograph analysis. Annual maximum rainfall data regarding 10-to-1440-minute long rainfall events were collected from digitized daily pluviographs. Data adherence to the generalized extreme value distribution (GEV) was checked through the Kolmogorov-Smirnov test at a 20% significance level. Next, the maximum probable rainfall for return periods such as 2, 5, 10, 20, 30, 50 and 100 years was calculated and the IDF equations were adjusted.