Calculation of input rainfall sequence to the distributed runoff model using point rainfall data
2001
Fukushima, A. (Shimane Univ., Matsue (Japan). Faculty of Life and Environmental Science) | Takeda, I. | Mori, Y.
This study aims to propose a procedure of a flood runoff analysis by the distributed runoff model using point rainfall data which are observed by the rain gages of tipping-bucket type . The previous study proposed two runoff routing models. The first one is a modfied model from the Long- and Short-Terms Runoff Model (LST- 2 model). The other is developed for the Kinematic Wave Storage Model (KiWS model). The proposed models have the advantage of possibility as a practical one to analyze a runoff phenomena considering the spatially distributed precipitation measured by radar rainfall measurement system. The present study is taken into acount for the input rainfall sequence calculated at the the grid cell, in which the observed ground raifall data in the watershed are converted to mesh data on the plane constructed by triangle network. In the same manner as the runoff analysis by the distributed model using radar rainfall data, it is shown that the runoff analysis is possible by applying the proposed input rainfall sequence to the previous runoff model proposed as the distributed type of KiWS model.
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