
handle: 10498/15456
La continua migración de la flecha de arena en la bocana del río Guadiaro, provoca el cierre de su estuario. Este hecho supone un serio problema de eutrofización de aguas y mortandad de flora y fauna debido a la escasa renovación de sus aguas. Con el fin de investigar la evolución morfodinámica de la parte emergida de la flecha, se han realizado 7 levantamientos topográficos de perfiles longitudinales y transversales de la flecha durante 5 meses. Se ha desarrollado un minucioso análisis volumétrico de los datos de campo, mediante Funciones Empíricas Ortogonales. Tras severos procesos erosivos (de hasta 5,73 m3/ml·día) y acumulativos (de hasta 8,92 m3/ml·día), este método explica perceptiblemente la evolución espacio-temporal de los perfiles. Se observa que la acción del oleaje es determinante en la comprensión de la progresión tridimensional de la flecha.
The continuous migration of the sand spit in Guadiaro River provokes the closing of its estuary. This fact involves a serious problem of water eutrofization and mortality within flora and fauna species due to the lack of water renovation. In order to investigate the morphodynamic spit evolution, 7 long-shore and cross-shore topographic profile levellings of the spit have been performed within a 5 month period. A meticulous volumetric analysis of the field data has been developed through Empirical Orthogonal Functions (E.O.F). After severe erosion processes (up to 5,73 m3/ml·day) and accumulative events (up to 8,92 m3/ml·day), this method explains the spatial and temporal profiles evolution noticeably. The wave action is determinant within the study and understanding of the three-dimensional spit evolution.
Revista de Ingeniería Civil Nº149/2008, pp. 111-121 (ISSN: 0213-8468)
Estuario, Flecha arena, Funciones Empíricas Ortogonales, Componentes principales, Sotogrande, Río Guadiaro, Guadalquitón, Eutrofización
Estuario, Flecha arena, Funciones Empíricas Ortogonales, Componentes principales, Sotogrande, Río Guadiaro, Guadalquitón, Eutrofización
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