Several formulations deduced from empirical studies are available for runup estimation. Scattering is high when applied to practical cases. Through a state of the art best formulations are chosen. These equations are also studied in a physical model carried out in the Laboratory for Maritime Experimentation of CEDEX with three beaches with slopes 1/20, 1/30 and 1/50 and with sand bed. The performance of each formulation is discussed. A new formulation is proposed in order to give more weight to the beach slope thus reducing scatter.
This study is an analysis about morphological problems, due to anthropic or other causes. We carried out the behavior and evolution of ten beaches on the North Coast of Spain, in order to see if climate change was involved. To do this, it was necessary to consider data from Cantabrian sea buoys during fifteen years. Besides we made use of, maps, nautical charts and bathymetric records. We applied a kind of parameters to measure the energy including on each beach, so to be able to compare therm.
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