Summary
In this project, the relationship between intensity, frequency and duration of rainfall was studied, in the period since 1965 at the Principal Weather Station of the Ducke Forest Reserve belonging to the Instituto Nacional de Pesquisas da Amazônia, kilometer 26 of the Torquato Tapajós highway. The frequency distribution proposed by Gumbel and an exponential distribution were fitted to the Series of Maximum Annual Intensities and Partial Series were formed. The degree of adjustment of these distributions to observed data was determined for rainfalls with 10 minutes duration.