Abstract
Rodriguez-Polo, S.; Del Rio, L., and Benavente, J., 2018. Longitudinal Distribution of Slope and Sediment Characteristics in Headland-bay Beaches in Cadiz, Spain. In: Shim, J.-S.; Chun, I., and Lim, H.S. (eds.), Proceedings from the International Coastal Symposium (ICS) 2018 (Busan, Republic of Korea). Journal of Coastal Research, Special Issue No. 85, pp. 306–310. Coconut Creek (Florida), ISSN 0749-0208.Headland-bay beaches are systems with an asymmetric curved planform that develop downdrift of a natural or artificial coastal headland. These beaches have some common features found along the coasts of the world, presenting a well differentiated zonation. The main objective of this work is to elucidate how parameters such as grain size, sorting and beachface slope in the different zones (shadow, central and distal sectors) determine the final morphology of the beach. For this purpose, twelve headland-bay systems in the coast of Cadiz (South Spain), with contrasting wave and tide regimes, were monitored in order to analyze the longitudinal gradient in slope and sediment distribution. Topographic surveys were conducted and sediment samples were collected and analyzed for grain size. Shore-normal transects were surveyed with a RTK-DGPS (Real Time Kinematics - Differential Global Positioning System) and beach slope was computed on each sector of the beaches. Three sediment samples were taken in each transect, corresponding to the dry beach, the high intertidal zone and the lower intertidal zone. A total of 152 topographic profiles and about 456 sediment samples were analyzed. All this information has allowed to gain insight into how the different parameters vary along the twelve headland-bays, as well as to establish common trends among them and to see how these parameters affect the final morphology of the beach. In a further step, future work will be focused on the detailed analysis of wave processes on each system, in order to more accurately determine the relations between the above parameters and the hydrodynamic regime.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
