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摘要
Este artigo apresenta as rela es Intensidade-Dura o-Freq邦那ncia de chuvas para a cidade de Chapec車, Estado de Santa Catarina. Foram estudadas as chuvas com dura o de 5 at谷 1440 minutos e ajustadas tr那s equa es para a estimativa das intensidades das chuvas, umapara dura es de at谷 120 minutos, outra para dura es entre 120 e 480 minutos e a terceira para dura es entre 480 a 1440 minutos Foram determinadas tamb谷m as rela es entre chuvas de diferentes dura es, observando-se uma varia o na rela o entre a chuva de 24 horassobre a chuva de um dia de dura o conforme a hora da coleta da chuva di芍ria. This paper studies the Intensity-Duration-Frequency relationship ofrainfall for the city of Chapec車, Santa Catarina State, Southern Brazil. High rainfall, with duration from 5 to 1440 minutes was studied and three equations to predict the rainfall intensity were adjusted: one for rainfall with duration below 120 minutes, another for durations between 120 and 480 minutes and the third for durations from 480 to 1440 minutes. It was also defined the relationship between several rainfall durations. Variation was observed between 24-hour rainfall and one-day rainfall, depending on the hour in which the samples were collected.
