Análisis de componentes del relieve mediante la comparación de superficies de tendencia respecto a la topografía actual. Cuenca de Madrid
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G. Garzón [1] ; Julio Garrote [1]
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[1] Universidad Complutense de Madrid
Universidad Complutense de Madrid
Madrid, España
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- Localización: Avances de la geomorfología en España, 2010-2012: actas de la XII Reunión Nacional de Geomorfología, Santander, 17-20 septiembre de 2012 / coord. por Alberto González Díez, 2012, ISBN 978-84-86116-54-5, págs. 293-296
- Idioma: español
- Títulos paralelos:
- Relief component analysis by comparison of actual landscape topography and trend surfaces. Madrid Basin
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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.
