TY - JOUR PY - 1991// TI - Tsunami ascending in rivers as an undular bore JO - Natural hazards A1 - Tsuji, Yoshinobu A1 - Yanuma, Takashi A1 - Murata, Isao A1 - Fujiwara, Chizuru SP - 257 EP - 266 VL - 4 IS - 2-3 N2 - At time of the 1983 Japan Sea tsunami, waves in the form of a bore ascended many rivers. In some cases, bores had the form of one initial wave with a train of smaller waves, and in other cases, such a wave train did not appear and only a step with a flat water surface behind was observed. In the present study, it is clarified that both undular-type and nonundular-type bores can be recognized as solutions of the KdV-Burger's equation which was introduced by Johnson in 1972. Numerically obtained analytical solutions and results of laboratory experiments are compared.
Language: en
LA - en SN - 0921-030X UR - http://dx.doi.org/10.1007/BF00162791 ID - ref1 ER -