Simulator

Use Cases

PAST

Reproduction of flood

NOW

Consideration of
adaptation action

FUTURE

Realization of
strong society

PAST

CASE01

Flood record

Reproducing floods from past flood flow records

Functions to use
Flood Flows

A simulation is performed by inputting information on river flooding on the map.

Required
Information
Past flood information
  • River flooded section
  • Flood flow record

Setting details
River flooded section

Location of levee breach that occurred in Asuwa River, Fukui Prefecture in Japan in 2004

Tips:
If you do not know the length of the river flood, please specify a length that is approximately the same as the river width.
Press 「show rivers」button to check river width information.
Flood flow record
Discharge: 300 (m3/s)
Hours: 3 (h)

Enter the maximum flow rate and time calculated in the flood survey.

Tips:
If you do not know the flood flow rate, press the “Show rivers” button to check the discharge information and set it to about 10% of the flow information.

PAST

CASE02

Flood trace

Reproducing floods from traces of past inundation depths

Functions to use
Flood Depth

Simulates surrounding flooded areas based on flood depth information at a certain location.

Required
Information
Past flood information
  • Location where flooding occurred
  • Depth of flooding

Setting details
Location where flooding occurred

Flooded areas due to the levee breach of the Asuwa River in Fukui Prefecture, Japan in 2004
Depth of flooding
First: Depth:3 (m)
Hours:3 (h)
Second: Depth:0.5 (m)
Hours:1 (h)
Tips:
If you don’t have time information, create several cases and run the simulation while checking.