Estudio multitemporal del crecimiento urbano de uso y cobertura en la ciudad de Neiva- Huila, mediante imágenes satelitales de Landsat 5, 7 y Sentinel 1

Abstract

This multitemporal analysis has as its central objective to analyze and measure urban growth in terms of use and coverage for the city of Neiva; It is essential to highlight that when the term urban growth is mentioned in this work, reference is made to the growth of the urban sprawl or urban area that occurs within the urban perimeter for the Municipality of Neiva - Huila. The total urban perimeter area for this Municipality is 4,594 hectares according to the Mayor's Office of Neiva (s.f.) and according to DANE (2005 - 2020) it is 4,893.21 hectares. In this case, the urban perimeter obtained by DANE is used for its practicality and validity, making this cartography the one that best adjusts to the cartography produced at the National level. To achieve what has been proposed, it is based on digital image processing techniques, which are the following: unsupervised classification and supervised classification. These will be done in the Erdas Imagine software; It seeks to verify and observe which of these techniques gives results more similar to the reality of the terrain, in terms of the 6 coverages involved for the development of the objectives, these are: bodies of water, herbaceous vegetation, wastelands, crops, buildings and forests; These proposed coverages are of their own authorship, based on the first level of the nomenclature proposed by the CIAF (Geographic Information Research and Development Center – IGAC, Colombia) classification system for use and coverage.