Scholarly record
MODELLING OF HYDROMORPHOLOGICAL CHANGES DUE TO THE EFFECT OF FISHING PORT "KARANTINATA"
Abstract
Presence of coastal structures usually causes significant impacts to adjacent shores, especially when they are composed of sand. Many times, these impacts are associated with inappropriate design due to inadequate consideration of hydromorphological processes and system interactions. As a result, excessive erosion and/or deposition of sediment is observed, which implies costly, and in some cases, continuous maintenance. The study presents an assessment and gives explanation of significant changes in the morphology of Asparuhovo Beach (Varna Bay, Bulgarian Black Sea coast) occurred immediately after the construction of the fishing port "Karantinata". In only two-year period, the beach adjacent to the facility increased several times in width, significant amount of sediments accumulated on the submerged slope in front of the port entrance, silting it up to such an extent that only the smallest vessels can access the port. The study elucidates the pattern of hydrodynamic and morphodynamic regime in the area influenced by the port, allowing the prediction of future changes in the hydromorphology of Asparuhovo Beach.
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