Abstract
Paddy field runoff models proposed until now are mainly classified into two groups: (1) models which simulate long-term runoff taking into account irrigation and drainage, but simplify the flood routing; (2) models which simulate short-term flood runoff taking into account the interaction caused by the overflow on a levee between a paddy field and a stream network. In this paper, we develop the new paddy field runoff model integrating the Complex Tank Model and the Diffusive Tank Model, which are representative models of each group, respectively. Then, we build the new paddy field runoff element model by using OHyMoS (Object-oriented Hydrological Modeling System), and apply it to Kizu River basin in Japan.
