2006 年 22 巻 p. 933-938
On September 1, 2001 a lady was drowned and killed at the Pansea beach on Phuket Island in Thailand. We set up an investigation team and carried out a field investigation on this drowning accident on September 18-21, 2002. Beach topography and rip currents were observed as well as the grain size test of the beach materials. Observed nearshore currents were compared with the numerical simulation. A rip current induced by the existence of shallow rock-exposed bed in the vicinity of the location where the accident occurred was the main cause of the drowning accident.