Creation of the Geographic Information System for the urban center of the municipality of San José de Ocoa using Digital Photogrammetry (UAV) and Geographic Information Systems
DOI:
https://doi.org/10.56294/la2026285Keywords:
Cartographic mosaic, photogrammetry, UAV (Unmanned Aerial Vehicle), GIS (Geographic Information System), municipalityAbstract
The research focused on creating a Geographic Information System (GIS) for the municipality of San José de Ocoa, Dominican Republic, using digital photogrammetry with drones. The study area was delimited using Google Earth satellite images, and 4 985 georeferenced photos with accuracies of less than 2 cm were obtained using drones. Image processing was carried out in three stages using Agisoft Metashape, generating digital terrain models and contour lines. Urban elements such as buildings and streets were subsequently vectorized using Civil 3D and orthophotos, resulting in a georeferenced plan in shapefile format. The cartography was validated through a walking tour of the municipality, updating the information with data from the UAV survey. The GIS incorporated various layers, including satellite orthoimages from 2013 and 2023, digital models, and shapefiles of buildings and roads. The WGS 1984 datum and the UTM projection system, Zone 19 N, were used with ArcGIS Pro and ArcGIS Online software. The results showed a significant expansion of the urban area between 2015 and 2023, with a 376,97 % increase in educational use and a 245,20 % increase in occupation of risk areas. The research generated a complete GIS, an interactive web application, and a 1:5 000 scale cartographic map. It was concluded that the methodology is replicable at the national level, optimizing territorial management in the municipalities of the Dominican Republic
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