Evaluación de precisión vertical de modelo digital de elevación generado mediante radargrametría usando imágenes CAPELLA SAR SPOTLIGHT en el municipio de Cáqueza – Cundinamarca

Abstract

This study focuses on the assessment of vertical accuracy of a Digital Elevation Model (DEM) generated through radargrammetry using Synthetic Aperture Radar (SAR) Capella satellite constellation in the municipality of Cáqueza, Cundinamarca. The methodology employed includes comparing the DEM with Ground Control Points (GCPs) collected using a high-precision GNSS receiver. The results were analyzed in accordance with the technical standards of the Instituto Geográfico Agustín Codazzi (IGAC), following Resolution 471 of 2020. The analysis showed that the generated DEM presents adequate accuracy for applications in cartography and land management, contributing to the validation of radargrammetry as a viable technique for generating high-resolution models in hard-to-access areas.