1,721,030 research outputs found
BCI: a new wave breaking criterion for the initiation of the breaking process in Boussinesq-type wave models
No full textA verification of static equilibrium parabolic formulation at the protected shoreline of Pizzo Calabro (Italy)
No full textWave-dune interaction and beach resilience in large-scale physical model tests
No full textLarge-scale laboratory experiments focusing on the main physical processes driving dune erosion have been performed in a wave flume with a sandy dune exposed to a combination of water levels and wave conditions (Tomasicchio et al., 2011b) providing observations of different interaction regimes: collapsing, overwash and breaching (Sallenger et al., 2003).The large set of data has been considered to obtain measurements of beach-dune cross-shore profile evolution, hydrodynamic properties and suspended sediment concentration.Results show that erosion develops faster during the first hundred waves, there is a clear influence of wave period (van Gent et al., 2008) and water depth on the resilience of the beach-dune system, and that sediment concentration at a given transect depends on the bar position.Furthermore, the observed data have been adopted to verify the predictive accuracy of two open source process-based profile numerical models
A multi-layer capping of a coastal area contaminated with materials dangerous to health
No full textEnvironmental protection efforts in coastal areas recognise contaminated materials as a critical element of the aquatic ecosystem requiring careful evaluation for their potential remediation. This article considers aspects related to the design of a multi-layer capping for a contaminated coastal area. The area is located just south of the urbanised region of Bari, Puglia Region, along the Adriatic coast of Italy. This area received massive displacement of cement asbestos from residuals of a factory producing concrete pipelines for aqueducts and asbestos boards. The designed reclamation has been proposed in order to allow reuse of the 2.4-km-long coastline for recreational activities. For this purpose, the main objective has been to face aspects related to the problems posed by the design of the adopted capping structure and various constraints related to the natural environment. An extensive numerical study has been carried out to verify the effects of the planned intervention. The local wave climate, wave- and wind-induced circulation, the impact on water quality, and the biological system have been investigated. At present, the intervention is under construction
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