APLICACIÓN DEL MODELO HIDROLÓGICO HBV-LIGHT EN LAS CUENCAS DEL RÍO MIRA Y PORTOVIEJO DEL ECUADOR

Abstract

The application of a hydrological model is important and useful to obtain feasible and useful results for managing water resources and prevent future climate problems. In this paper was applied and evaluated the efficiency of calculating the actual daily runoff model Byrans hydrologiska Vattenavdelning (HBV-light) using hydrometeorological data base of conventional stations in Portoviejo and Mira river basins in the period 2003- 2013. These data were obtained by the National Institute of Meteorology and Hydrology (INAMHI). The results of runoff that produced the model did not coincide acceptably with observed data for any of the two studied basins. The model efficiency for Portoviejo River basin was -0.1881 and Mira River Basin was -1.013. The minimum acceptable value is 0.65. From july to december for Portoviejo and from November to February for Mira, the model gave us better results. That suggests us that for observed accumulated runoff greater than 200 m3/s model differs significantly from the simulated. We conclude that this tool is not valid for the development of studies in these two basins, by the unreliability of the data. The model has been used and validated with positive results in countries such as Costa Rica, Panama, China and Colombia therefore, it is recommended that studies be done with data from automated stations.