Study On  Disaster  Overlapping
Of A  Storm Surge And  A River  Flood

K. Toda; K. Inoue; M. Takeda; K. Hirayama

doi:10.2495/HY000351

Study On Disaster Overlapping Of A Storm Surge And A River Flood

Price

Free (open access)

Transaction

WIT Transactions on Ecology and the Environment

Volume

Pages

Published

2000

Size

906 kb

Paper DOI

10.2495/HY000351

WIT Press

Author(s)

K. Toda, K. Inoue, M. Takeda & K. Hirayama

Abstract

This study treats an overlapping phenomenon by a storm surge and a river flood at Osaka bay and the Yodo river, Japan. Shallow water equations are used for a horizontally 2-D storm surge model and Saint Venant equations are used for a 1-D unsteady river flow model. Both models are combined at the river mouth where the discharge flux and the water level are ex- changed. Longitudinal water level and velocity distribution in the Yodo river are examined through the time lag of storm surge peak and river flood peak occurrence. The overlapping flood causes the higher water level and the higher velocity in the downstream section than the storm surge or the river flood alone a

Keywords

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Code

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