Modelación hidrológico con hec-hms y rs-minerve de la Cuenca del río Casacay – El Oro

Abstract

The present degree work aims to determine the correlation that exists between the maximum flows calculated by HEC-HMS and RS-MINERVE, in order to verify the degree of reliability of these mathematical models, since they are currently the most widely used software for the elaboration of hydrological models in sub-watershed The data used were obtained from open databases available at national and international level, therefore a detailed investigation was performed to select the data that had the most influence on the sub-watershed under study. In addition, an arduous bibliographic investigation was carried out to select the calculation method that best suits the characteristic of the sub-watershed. Equally, for the geomorphological characterization, a geographic information system software was used to obtain the necessary parameters for hydrological modeling. In addition, an arduous bibliographic investigation was performed to select the calculation method that best suits the characteristic of the sub-watershed. On the other hand, for the geomorphological characterization, a geographic information system software was used to obtain the necessary parameters for hydrological modeling. Then the type of sub-model to be used was selected, where one of the most used in several investigations in the CN (Number of curves), which is based on the use and type of soil in the sub-watershed. Besides, we worked with precipitation histograms for several return periods. On the other hand, potential evapotranspiration was calculated for a year with the FAO calculator, whose input was obtained from a worldwide database, so it was defined for the study area. After obtaining the input data, the hydrological modeling programs chosen for the research were entered, data such as area, length of the watershed, CN, % of impermeability, delay time, histograms for several return periods, evapotranspiration, inter alia. While, to verify the degree of reliability of the maximum flows, the student t test was selected, since it is the most used for quantitative variables whose measurements are made to the same population in two different cases.