Interpolação dos parâmetros da equação de chuvas intensas com uso do inverso de potências da distância

Intense precipitation equations represent an excellent alternative to determinate critical rainfalls used in engineering designs but its obtainment is time-consuming. However, in some Brazilian States a great number of these equations have been determined for several places, permitting to obtain the equation parameters, by interpolation, for the places where these still have not bean known. In this paper 625 different combinations were compared for the four intense precipitation parameters ("K", "a", "b" and "c") interpolated by the inverse distance to a power method (using five different powers). Data from 171 places located in Minas Gerais State were used. In all the combinations, a tendency of overestimation was noticed for the precipitation intensity. "K" and "c" parameters interpolated by the inverse distance to the fifth power, "a" interpolated by the inverse distance of the first power and "b" by the inverse distance to the third power showed better results in precipitation intensity prediction.