Determination of physical variables of the mendocino piedmont through the use of remote sensing tools in relation to geological risks

The metropolitan area of Mendoza, in periandean sectors, tends to accommodate and sustain geological processes of internal and external order related to seismic and alluvial events, among others. Because of the growing and uncontrolled urbanization especially onto capital city and metropolitan area, much of the population is moving into areas of significant slope, generating phenomena related with summer rainfall events activating landslides. These processes together with other of lower order, but not less important, expose thousands of people to geological risk. The development of mapping detail to establish mitigation plans, zoning and adequate contingency in the piedmont area western Mendoza are presented here. Studies with the base of OLI, ETM+ and TM landsat program information were made, in order to perform, multitemporal studies to determine urban growth rates. Simultaneously, digital processing was performed to establish stratigraphic, topographic differences, orientation, attitude and anisotropies because of structural deformations that could make physical parameters to determine geological and hydrological active hazard areas. Supervised classification (maximum likelihood), decision tree (using digital elevation models from own data), density slice; principal components and decorrelation strecht were included. The results provided a detailed cartographic output raster, complemented by field work, that allowed summarize information to successfully establish zones of seismic and hydrological potential hazard. The resulting graphs are presented in this opportunity.