SIMULACIÓN HIDROLÓGICA DE LA CUENCA DEL RIO AMAJAC, ESTADO DE HIDALGO APLICANDO EL MODELO SWAT.

Abstract

This paper treats the modeling of the generation of avenues in water, sediments and media fees of a hydrogical basin, to predict the amount of runoff and sediment with the SWAT (Soil and water Assessment Tool) model. Will apply for this proposes the GIS (Geographic Information System) Arc- View software was utilized. The Servicio Meteorologico Nacional (SMN) provided weather data for a period of ten years (1998-2008), the hydrometric data was obtained from the Comisión Nacional del Agua (CONAGUA), for the same period, the basin being studied is composed by 24 ground units; the 19 Digital Elevation Model (MDE) were provided by the Instituto Nacional de Estadística, Geografia e Informática (INEGI) as well as the 14 land uses. The SWAT results consider 12 subasins and 138 Hydrologic Response Units. And through the measured and simulated comparison of the superficial floods, an analysis of lineal regression was realized, considering the best adjustment, the r2 determination coefficient = 0.76, the slope of the straight line and the Nash-Sutcliffe efficiency coefficient.