EXPERIENCES IN CADASTRAL RESTITUTION AT A TOWN AFFECTED BY A NATURAL DISASTER. THE CASE OF VOLCAN, JUJUY PROVINCE, ARGENTINA

Abstract. The use of UAVs (Unmanned Aerial Vehicles) as a data acquisition tool for cadastral surveying has been used for several years. The processing software and an adequate workflow make this set a powerful tool to obtain quality information quickly in order to take decisions.

This work shows the experience of using this tool and the results achieved in an urban area included in the Quebrada de Humahuaca (included in the list of World Heritage of Humanity by UNESCO) that was affected by a landslide and flooding in January of 2017. A precise and fast action was required to begin the reconstruction works of the houses that had to be demolished due to their high degree of affectation. In addition, a general update of the Cadastral Records of the town was required, which were analyzed individually from the information collected for the preparation of the Cadastral Map, the analysis of the previous cadastral information and a set of surveys carried out in each property. It includes an initial assessment of the problem, the work flow adopted, the results achieved, and a discussion of the problems detected in each phase of the work.