THE LAYER “HYDROGEOLOGY” NECESSARY FOR ELABORATING LANDSLIDE HAZARD MAPS USING GIS

THE LAYER “HYDROGEOLOGY” NECESSARY FOR ELABORATING LANDSLIDE HAZARD MAPS USING GIS. Drawing up a detailed risk map for the landslide of a slope is based on a complex research activity to establish the area indicators resulted from the instability process (relief, petrography and terrain litology, stratification, hydrogeology, anterior and precursory physic-geologic phenomena, present and perspective use of the terrain, hydrologic regime, etc.). In this context, in the preset paper we try to achieve one of the most important informational layer concerning hydrogeology spatial distribution that by means of overlay techniques will allow us the automatic achievement of these risk maps.