GEOMORPHOLOGICAL RISK AND VULNERABILITY OF THE SUBCARPATHIAN AND PIEDMONT SECTORS OF THE GILORT RIVER BASIN/RISC GEOMORFOLOGIC ȘI VULNERABILITATE ÎN SECTORUL SUBCARPATIC ȘI PIEMONTAN AL BAZINULUI HIDROGRAFIC GILORT (ROMÂNIA)

Currently, geomorphological studies have been tasked with investigating a large part of natural hazards, so any study should end with a geomorphological risk map. The geomorphological risk maps take into account the analytical and synthetic integration of as many variables as possible to target both natural and social elements. In approaching the geomorphological risk assessment methodology, it is necessary to correlate each control factor with the map of current geomorphological processes and establish its weight of influence. A layer was created for each variable and the current processes were quantified by means of another layer by using Spatial Analyst - Density (ArcGIS). From the obtained layers, the numerical information was extracted according to a grid network, adopting a convenient size of the grid cell. Considering the dynamics of the current processes in the Subcarpathian and the Piedmont sector of the Gilort hydrographic basin (Romania), the geomorphological risk map was created for this space, highlighting four categories of risk (very low, low, medium and high). The obtained map has an important practical utility and includes the degree of vulnerability of the anthropogenic component to certain types of natural hazards.