Annual Journal of Civil Engineering in the Ocean Vol.35
OUTBREAK FACTORS OF RIP CURRENT ACCIDENT AT ONJUKU BREACH IN JAPAN
2019 Volume 75 Issue 2 Pages I_695-I_700
Details
2019 Volume 75 Issue 2 Pages I_695-I_700
The rip current is a main cause of drowning accidents in Japan. To prevent drowning accidents, lifesavers detect the rip current, and give a caution to beach users. However, rip current accidents are not prevented completely because of not only difficulty of finding rip currents, but also the lack number of lifesavers compared with total number of beach users. Therefore, it is highly important to estimate in advance the occurrence of rip current accidents. In this study, we studied outbreak factors of rip current accidents at Onjuku beach using the statistical analysis. As a result, the rip current accident happened in following conditions; Fine whether, a large number of beach users, the sea condition is not so good for a sea bathing, the wave height is from 1.5 to 2 m, the wave period is from 10 to 11 s, and the wave direction is between S and SE according to data from the Japan Meteorological Agency.
