Estimación del sellado del suelo mediante técnicas de análisis espectral
- Tomás, Alberto de
- Salas Rey, Francisco Javier
- Santos, Cesar
- Garzón, Antonio
- Moreno Burgos, Victoriano
ISSN: 1136-5277
Year of publication: 2010
Issue Title: La teledetección en la investigación geográfica
Issue: 16
Pages: 81-92
Type: Article
More publications in: Serie Geográfica
Sustainable development goals
Abstract
Increasing artificial surface, associated with urban growth, produces soil imperviousness, known as soil sealing, which causes a number of adverse effects on the environment. This paper aims to develop a methodology to facilitate the estimation of this surface type, in order to establish control measures. Remote sensing techniques provide interesting classification possibilities in urban areas. In this research, both Linear Spectral Mixing Analysis (LSMA) and Sequential Maximum Angle Convex Cone (SMACC) spectral analysis techniques have been tested on a SPOT-5 multispectral image, corresponding to the Northeastern sector of the city of Madrid. Finally, the SMACC technique was applied, in combination with other variables extracted from the image, getting as a result a sealed mask with an overall accuracy of 83,75%. The results were then compared to the existing European soil sealing layer for Spain1, which obtained an overall accuracy of 69,5% with the same accuracy assessment method used in this study.