Análisis de componentes del relieve mediante la comparación de superficies de tendencia respecto a la topografía actual. Cuenca de Madrid
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Universidad Complutense de Madrid
info
- González Díez, Alberto (coord.)
Editorial: PubliCan-Ediciones ; Universidad de Cantabria
ISBN: 978-84-86116-54-5
Año de publicación: 2012
Páginas: 293-296
Congreso: Reunión Nacional de Geomorfología (12. 2012. Santander)
Tipo: Aportación congreso
Resumen
Trend surface analysis (relief data in this case) represents a mathematical methodology used to separate the topographic data, from a DEM, into its main components: regional and local fluctuations. According to Grohmann (2005) regional trends can be computed from polynomial surfaces of different orders. On the other hand, residual values, which correspond to local fluctuations of the analysed variable, represent the arithmetic difference between the real data and the trend surface obtained. From the results, a preliminary conclusion can be suggested, the distribution of residuals is not random, but has a good relationship with different geomorphological zones in the Madrid Basin. Moreover, the presence of high residual values would also be indicative of the existence of possible disturbances of tectonic character determining the configuration of the relief in the study area.