Efectos de las emisiones de fluidos en la respuesta acústica de los fondos marinos del golfo de Cádiz
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AuthorsLozano, P.; Fernández-Salas, L.M. (Luis Miguel); Rueda, J.L. (José Luis); López-González, N. (Nieves); Vila, Y. (Yolanda); López-Rodríguez, F.J. (Francisco José); Farias, C. (Carlos); Vázquez, J.T. (Juan Tomás); Díaz-del-Río-Español, V. (Víctor)
Editor/sDíaz-del-Río-Español, V. (Víctor); Bárcenas, P.; Fernández-Salas, L.M. (Luis Miguel); López-González, N. (Nieves); Palomino, D. (Desirée); Rueda, J.L. (José Luis); Sánchez-Guillamón, O. (Olga); Vázquez, J.T. (Juan Tomás)
Gulf of Cádiz
Advances in remotely-sensed techniques have revolutionized mapping methods and our understanding of the seabed environment. In particular, multibeam backscatter data nowadays allows developing quantitative studies on the composition of the seafloor, which represents an important baseline for habitat mapping. Usually, the acoustic response is considered as a direct proxy of sediment texture, but seepage could affect significantly this relationship. A multibeam data set from the Gulf of Cádiz, was grouped using an ISO-cluster analysis and results were compared with 80 ground-truthing stations taken inside and outside cold seepage areas. Results show significant differences between the acoustic response of sediments with the same texture depending on the presence/absence of fluid emissions. Understanding this relationship is necessary to make image-based backscatter classification that allows the production of sediment and habitat maps in areas with extensive fluid emissions such ...
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