Análisis batimétrico de lagunas poco profundas mediante técnicas de teledetección y sig: aplicación a la laguna la Victoria

Abstract

In the present paper the implementation of remote sensing techniques, together with Geographic Information Systems, to determine bathymetry of shallow lagoons is described. The proposed methodology is applied to determine the bathymetry of La Victoria lagoon, belonging to the "Las Encadenadas" basin in the southern part of the Santa Fe province. Accurate altimetric values were obtained using the SRTM (Shuttle Radar Topography Mission) model, which was calibrated and corrected. Moreover, in order to achieve an adequate representation of the altimetric curves, by means of techniques applied to satellite images, selected according to varied climatic events, water surface masks were made. Through the linking of the water masks and the altimetric surfaces of the corrected digital terrain model, certain surfaces with altimetric values were determined. Consequently, by means of interpolation of generated layers, scaled altimetry values were obtained and the bathymetry of the lagoon was determined