Regionalization of IDF curves for the use of hydrometeorological models in the Western Sabana of Cundinamarca department

Abstract

The regionalization of intensity-duration-frequency (IDF) curves is presented in this work through the use of different hydrometeorological models. This regionalization is built in the area of Western Sabana of Cundinamarca department in Colombia. For this, the calculation of IDF curves are made from the analysis of the intensities recorded in seven pluviographs of meteorological stations in the region; the Gumbell method and the respective goodness fit test is used. Different techniques are applied such as linear regression and determining correlation coefficients for intensities interpolation, and the alpha and U parameters. To the intensities regionalization in the area is applied statistical method based on linear correlation of the intensities, depending on the topography of the region variables (altitude, latitude and longitude). In this case the differences are analyzed using the registered elements of intensities and the parameters Alfa and U.