Flood inundation simulation in a river basin using a physically based distributed hydrologic model
By Dushmanta Dutta, Srikantha Herath and Katumi Musiake
- A physically based distributed hydrologic model is developed for flood inundation simulation.
- The model combines overland and channel flow simulation models with evapotranspiration, unsaturated zone, and saturated zone models.
- The individual models are validated with test data before being coupled together.
- The model can handle fine resolution spatial data, preserving the spatial heterogeneity of a river basin.
- River embankments are considered in flood inundation simulation.
- The model is applied to a river catchment in Japan to simulate a flood event in 1996.
- The model outputs show good agreement with observed flood hydrographs and surveyed flood inundation.
