The Application Research on Radar Quantitative Precipitation Estimation Technology on Flood Forecast in Flood Season in BaiLianHe Reservoir
The high resolution rain information in time and space can be obtained through ra-dar QPE (Quantitative Precipitation Estimation), and be input into the hydrological model to improve the precision of hydrological forecast. The paper takes the BaiLianHe catchment as research area, and adopts the grouping Z～I relationship to transfer radar reflectivity into rain, and check it with Kalman filtering combining with rain gauge, and then input rain in-formation from various estimation method into XinAnjiang model to make flood forecasting test. The test showed that when the radar QPE without calibration is input directly into hydrological model, the simulation results are not satisfactory, but when the radar QPE with calibration is input into the model, the forecast precision can be more improved. The resear-ches show that radar QPE has wide application prospect in hydrological forecast.
Radar QPE the grouping Z～I relationship Xin An Jiang model flood forecast
Peng Tao Song Xingyuan Shen Tieyuan Yin Zhiyuan
Institute of Heavy Rain, CMA, Wuhan 430074, China State Key Laboratory of Water Resources and Hydrop State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan Univerity, Wuhan 43 Institute of Heavy Rain, CMA, Wuhan 430074, China
国际会议
International Conference on Dam Safety Management(2008水库大坝安全管理国际研讨会)
南京
英文
738-743
2008-10-22（万方平台首次上网日期，不代表论文的发表时间）