Flood-risk Assessment Of The Dense Downtown In Fukuoka City, Japan
Price
Free (open access)
Transaction
Volume
159
Pages
12
Page Range
41 - 52
Published
2012
Size
1,082 kb
Paper DOI
10.2495/FRIAR120041
Copyright
WIT Press
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