Guía de apoyo técnico en la evaluación de coberturas de la tierra con el uso de imágenes satelitales landsat y sentinel con estudio de caso en el corregimiento de palamarito municipio de Cúcuta, departamento de norte de Santander

Abstract

The influx of new technologies with free access presents an alternative in the mitigation of shortcomings in both technical and regulatory matters, providing support on territorial hegemony, control and distribution of resources more up-to-date and in-fit with the reality of the Colombian territory. Free-to-use satellite images are a perfect alternative, and having been connected to open source software, they generate a duality of structural hardware for the progress and decision making at environmental, social and economic level in the municipality.

This guide outlines the steps to acquiring or downloading Landsat 8 and Sentinel 2 images. It also explains how they are operated with QGIS software; images have advantages over other private commercial products such as free-use, time-resolved, spatial resolution, and the degree of tuning with which they are delivered from their virtual platforms. The Case Study, applied to Palmarito, a municipality of Cúcuta, was designed to develop a supervised classification in the field of study demonstrating the application of the existing free hardware in the Internet network – presenting its benefits and limitations, as shown in the attached products of this document.