Aplicación de la tecnología láser (LIDAR) en la zonificación de áreas de inundación del Río Rehue en la ciudad de Angol

Abstract

The technological advance in different disciplines of geomatics has produced substantial improvements in the accuracy of the data obtained from the Earth's surface, this thanks to the specialized instruments in the acquisition of said data or to the software used for its processing. The high precision of the laser sensor (LIDAR) in the capture of data of the relief and the elements on the surface of this, have contributed greater reliability to the results obtained through models used for the calculation of parameters and estimation of variables, both in engineering studies as in other disciplines. The LIDAR technology has been applied in this study to determine the flood areas of the Rehue River in the city of Angol, so that the information obtained can serve as input in the management of the Territorial Planning Instruments. For the purposes of this study, data related to geomorphology, hydrology, soil and climate were also collected and analyzed, which behaved as the main variables for obtaining the results, being used in modeling in the respective ArcGis 10.5 software, HecRas 5.0.5 and HecGeoRas. Finally, the results of this study are presented both in tables and thematic cartography, as well as in orthophotos for a greater appreciation of these.