Estudio de áreas degradadas mediante imágenes obtenidas con un UAV (dron) y con el satélite Sentinel de la Agencia Espacial Europea
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2020
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García Rodríguez, María Del Pilar, y Almudena Sánchez Pérez De Évora. «Estudio de áreas degradadas mediante imágenes obtenidas con un UAV (dron) y con el satélite Sentinel de la Agencia Espacial Europea». Anales de Geografía de la Universidad Complutense 40, n.o 1 (19 de junio de 2020): 55-71. https://doi.org/10.5209/aguc.69332.
Abstract
Se analiza, mediante imágenes de satélite, fotografías aéreas e imágenes tomadas con un dron, un sector protegido dentro del Parque Regional del Guadarrama (Madrid) afectado por importantes procesos de degradación. Este área se caracteriza por la presencia de fuertes cárcavas que, aunque carentes de vegetación en su mayor parte, en algunos puntos más estables, sustentan un denso bosque mediterráneo. La acción del hombre ha provocado un importante sellado del suelo con la construcción de urbanizaciones en áreas próximas que incrementan los procesos de escorrentía y, por lo tanto, afectan a la evolución de las cárcavas. El objetivo de este trabajo es hacer una cartografía detallada de estas áreas degradadas utilizando las fuentes disponibles y actualizadas: fotografía aérea, imágenes de los satélites Landsat, Spot y Sentinel e imágenes tomadas con un dron con cámara visible y de infrarrojos próximos. Son especialmente novedad, las imágenes tomadas por el satélite Sentinel y por el dron.
The aim of this paper is to analyse by satellite images, aerial photographs and images taken with a UAV (drone), a protected sector within the Guadarrama Regional Park (Madrid) affected by important degradation processes. This area is characterized by the presence of significant gullies that, although lacking vegetation for the most part, in some more stable points, support a dense Mediterranean forest. Human action has caused an important sealing of the soil with sitting residential areas nearby that increases the processes of runoff and, therefore, affects the evolution of the gullies. The objective of this paper is to make a detailed cartography of these degraded areas using available and updated sources: aerial photography, images of the Landsat, Spot and Sentinel satellites and images taken with a UAV with visible camera and near infrared. They are absolute novelty, the images taken by the Sentinel satellite and the UAV.
The aim of this paper is to analyse by satellite images, aerial photographs and images taken with a UAV (drone), a protected sector within the Guadarrama Regional Park (Madrid) affected by important degradation processes. This area is characterized by the presence of significant gullies that, although lacking vegetation for the most part, in some more stable points, support a dense Mediterranean forest. Human action has caused an important sealing of the soil with sitting residential areas nearby that increases the processes of runoff and, therefore, affects the evolution of the gullies. The objective of this paper is to make a detailed cartography of these degraded areas using available and updated sources: aerial photography, images of the Landsat, Spot and Sentinel satellites and images taken with a UAV with visible camera and near infrared. They are absolute novelty, the images taken by the Sentinel satellite and the UAV.