ON THE INUNDATION PREDICTION TANK MODEL INPUT BY THE DESIGN RAIN

Abstract

It is important for the precaution activity of inhabitants to know how much rain will cause the urban inundation in their city. We discussed in our previous paper the possibility of prediction in case of Ube city using Tank model and point rain prediction method. The Tank structure, Tank parameters and critical occurrence level of residual water in Tank were determined to separate clearly the inundation occurrence cases and the non-occurrence cases in the past rains. We call the critical occurrence level D line. In this paper, we examine how the Tank water level reaches the criterion level (D line) in case of Ube city, inputting the design rain into Tank instead of real 10minite rainfall data.