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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Special sessions : Morphodynamic evolution and influence of dredging activities in small-scale
Morphodynamic evolution and influence of dredging activities in small-scale
Author : REYES-MERLO, M.Á. (1), TINTORÉ-PARRA, Á. (1), DÍEZ-MINGUITO, M. (1), ORTEGA-SÁNCHEZ, M. (1) & LOSADA, M.Á. (1)
ABSTRACT
As in many others coastal systems, the interplay between tide and littoral drift controls the inlet morphodynamics of the
Punta Umbría estuary (SW Spain). Their interaction causes that the estuary mouth has a natural tendency to closure,
altering the economic activities related to the navigation through the inlet. The situation is no longer sustainable, since
the regional government needs to dredge the navigation channel every two years. In order to understand the
hydrodynamics and its impact on the morphology, a monitoring network was installed between May and October 2014,
all along the estuary and the inner continental shelf. The measurements, combined with detailed bathymetric information
between 2002 and 2014, enable the set up, calibration and validation of the computational model Delft3D. Three
possible management scenarios are then analyzed. The long-term stability of the inlet is assessed through tidal prism
and littoral drift relations. Attending these simple but robust relations, the best alternative to extend the useful life of
dredging is the construction of a sediment tramp nearby the estuary mouth.
File Size : 1,712,312 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Special sessions
Date Published : 18/08/2015
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