Estimación de curvas intensidad, duración y frecuencia (idf) en puntos geográficos sin registro históricos de precipitación.

Abstract

The intensity-duration-frequency-precipitation (IDF) curves are one of the most used tools in water and hydraulic engineering for project planning, design and operation processes; As well as for flood protection (Koutsoyiannis, 1998). Usually the IDF curves are determined by analysis of the largest possible number of rainfall records pertaining to a station of study; Since the rainfall charts show the profiles of each storm, that is, the accumulated rainfall as a function of time. One drawback that occurs with this type of information, timely in Colombia is that this type of records is scarce since there are not a large number of stations. Although these curves are a tool of continuous use in engineering, this situation evidences that at least in Colombia, there are many questions that have not been solved satisfactorily; In the study of the maximum precipitations and the obtaining of IDF curves. For this reason, the proposed research focuses on the analysis of alternatives to obtain reliable IDF curves, based on the historical records of rainfall stations, at geographical points where no such stations are found. The methods analyzed will be based specifically on the study of the historical pluviographic records of seven stations located in the center of the department of Boyacá, Colombia. From this information, the information will be extended by methods of extrapolation of the IDF curves; to sites where they cannot be determined by common methods.