Analysis Of Hydrological Vulnerability Due To Floods In Cities With Up To 6,000 Inhabitants

Abstract

The main objective of this work is to determine the level of vulnerability to flooding in relation to the depths obtained through flood maps in various sections of the basins in the Marcabelí Canton of Ecuador. The methodology applies two approaches; bibliographic and experimental. The bibliographic approach is based on the collection of information and review of reference documents in different databases. The experimental approach covers different analyzes (topographic, hydrographic, land use, hydrological and hydraulic) using the ArcGis, Hec-GeoRas and Hec-Ras programs. The results obtained through the simulations show that section C-D, in a return period of 100 years, will generate a depth of 14.54 m (high risk). Flood maps provide information about susceptible areas and possible areas affected by floods. Finally, the methodological proposal is presented where the experimental process for the creation of flood and risk maps for different flows and return periods is outlined.