Flood-risk Assessment Of The Dense Downtown
In Fukuoka City, Japan
Author(s)
H. Hashimoto1 & Y. Nonaka2
Abstract
The flood risk of the Naka River is much higher than the other rivers in the
Fukuoka Metropolitan area. The Naka River watershed has the dense downtown
along the lower river reach. If the Naka River and its tributaries would overflow
in the lower river reach, significant economic loss would be caused. The urban
flood simulation detects areas of higher flood-risk in the downtown. The urban
flood simulation is divided into two parts; one is one-dimensional flood flow
simulation along the lower Naka River reach and the other is two-dimensional
flood flow simulation on the downtown area. Furthermore, the latter is
subdivided into two sub-parts; one is two-dimensional flood flow simulation for
the ground level and the other is that for the underground space. The land use in
the downtown is complicated. The land use in the downtown is incorporated into
the simulation.
Keywords: urban flood, flood risk, urban flood simulation, underground space.
Keywords
urban flood, flood risk, urban flood simulation, underground space
Related Book
Other papers in this volume
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