Coastal Engineering 1982 · 1982 · 29 citations · 0 references
Natural SciencesOcean EngineeringOceanographyCoastal EngineeringCoastal Zone ManagementOcean WavesCoastal DynamicsCoastal ErosionCoastal HazardsCoastal ManagementCoastal ProcessesNearshore ProcessesBeach Erosion ControlCoastal Defense DesignCoastal Defense StructuresPresent Situation AnalysisSand BypassingWave Climate AnalysisWave-driven Coastal Processes
This paper summarizes a study recently concluded of a sandy coastal reach, 110 km long, on the Portuguese west coast. The final objective of that study was the design of a sea defense master plan covering all the stretch, to be built at a long term. That coastal reach has been under a strong erosion process for a long time. The history of the problem and its present situation were thoroughly analysed. Different techniques, related to different aspects of the general problem (wave clima te, littoral transport, sand bypassing, long term evolution under accretion or erosion conditions, groin field, spiral beaches, etc.lwere used. In what concerns littoral transport and sand bypassing the improvement of currently available methods was tried. The need of an accurately defined wave climate was felt; some rather disappointing results can surely be related to the lack of accurate wave data.