洪水予測精度向上のためのレーダー雨量の逐次補正について

抄録

This paper describes real-time calibration of B, β in the radar equation used to transform the radar reflectivity into the rainfall intensity. The calibration is intended to obtain a higher degree of accuracy in estimating areal rainfall and forecasting flood runoff. Various methods of calibration are compared in terms of the accuracy of hydrograph in the Yura River basin (1, 880km²) located in the north of the Miyama Radar Raingage system, Ministry of Construction.