Swash Zone Range on Natural Beach during High Waves
現地自然海浜における高波浪時の遡上域の範囲について

Tomonari SHIGEYAMA, Nao SHIMADA, Takahito MYOUGA, Kasumi TAKAHASHI, Masaru MIZUGUCHI
2012 Journal of Japan Society of Civil Engineers Ser B2 (Coastal Engineering)  
Tomonari SHIGEYAMA, Nao SHIMADA, Takahito MYOUGA Kasumi TAKAHASHI and Masaru MIZUGUCHI Swash zone range is the area between the max run-up and the max run-down. Here the max run-down is defined as the most offshore-ward position being dried during the specified period. Field data of USWG deployed near the shoreline at Hasaki were analyzed to evaluate both values for one hour during storms. Comparison of max run-up height from the mean water level with Van der Meer Stam(1992) show that the filed
more » ... show that the filed values are much larger during high waves as the large long waves are predominant near the shoreline. Crude model to calculate the max run-up and run-down from the power of the long waves and short waves near the shoreline are proposed and compared fairly well with the observed ones. It is shown that the max run-up from MWL is roughly twice as large as the max run-down from MWL both in the model and the observation.
doi:10.2208/kaigan.68.i_81 fatcat:kcia4j6z2rajjmwftzgiby56l4