Implementation of a modular software in Las Turbias stream watershed. Province of Santa Fe, Argentine.

Abstract

In the last 10 years, in Las Turbias stream basin placed in the south center of Santa Fe province, more frequent floods have been ocurried despite to lower precipitated amounts. As a consequence, there are prolonged overflows and floodings, and to a lesser degree erosive processes on the river banks. These effects of the natural threat are aggravated by individual and unplanned actions, execution of road works, channels and defense embankments as well as technological changes in agricultural production, which permanently modify the runoff dynamics. To this situation are added the concerns and uncertainties of the producers about flows transfer from other basins. In this work, the CAPRA GIS modular software was implemented to represent flood areas generated by different probabilistic frequency scenarios. The simulation was performed with the ERN- Inundación module in the upper section of the Las Turbias stream basin for design hyetograms of different recurrences. The maps obtained are support decision-makers so that together with the basin organizations they adequately manage the corresponding structural and non-structural measures.