THE OVERLAND FLOOD FLOW DUE TO THE HEAVY RAINFALL IN FUKUOKA CITY ON JUNE 29, 1999
2002 Volume 8 Pages 127-132
Details
2002 Volume 8 Pages 127-132
Short-time heavy rains caught people in the northern part of Kyushu on June 29, 1999. As a result the Mikasa River and the Sanno-Channel River overflowed their banks and the flooding water moved down the roads to the JR Hakata-eki Station. After the flood disaster we had interviewed the residents and office workers to investigate the overflowing period, and the direction and depth of inundation flow. In the present study we have computed the behavior of overland flood flow from the Mikasa and Sanno-Channel Rivers to verify the results of the interview.
It is found that an increase in the inudation depth occurs from 8:00 to 9:00 and also its rapid increase does from around 10:30. The former is due to the heavy rain, and the latter due to the overland flow.
