Georreferenciamento e mapeamento cadastral da cidade de Serranópolis (GO): potencialidades do uso de drones para planejamento e gestão urbana

Abstract

This article presents the methodological procedures for carrying out Georeferencing and cadastral mapping of the city of Serranópolis (GO) developed from an agreement signed between the municipal government and the Federal University of Jataí. In order to comply with the agreed terms the procedures were divided into 04 stages: area reconnaissance and planning, including drone registration and insurance processes and overflight authorization application; data acquisition and field survey using GNSS Trimble R4 geodetic equipment with RTK and drone (Phantom 4 PRO by DJI); data processing and cadastral mapping using free software (QGis 3.22); correction and generation of cartographic products according to decrees 89,817 of 1984 and 9,310 of 2018. Among the results it was possible to measure a standard of Cartographic accuracy Class A, with an average horizontal error of 0.012m and vertical of 0.020m, to generate a cadastral map at a working scale of 1:500 and to provide images and subsidies for the municipality to prepare urban projects and base a land tenure regularization process in the future. Considering the coverage area limitations of drone overflights, mapping medium and large cities is unfeasible because it takes a long time and generates a large volume of photographs, but they are ideal for the study of neighborhoods, urban green areas, highway right-of-way and small towns as Serranópolis.