水利水电技术2017，Vol.48Issue(7)：12-19,27,9.DOI:10.13928/j.cnki.wrahe.2017.07.003
基于流溪河模型的中小河流洪水预报方法
Liuxihe Model-based method for flood forecast of medium and small-sized river
摘要
Abstract
Aiming at the problem that the distributed hydrological model cannot be applied to medium and small-sized river due to lack of the relevant data of river channel cross-section and taking Liuxihe Model as the prototype,the cross-section size of river channel is estimated with the satellite remote sensing image concerned under the assumption of that the cross-section is rectangular,and then a revised Liuxihe Model for flood forecast of medium and small-sized river is proposed herein by optimizing the model parameters through the measured flood data.The result from the application of this model to a typical medium and small-sized river-Taipingjiang River Watershed in Jiangxi Province shows that the more the stages of the river channel are,the larger the peak flood flow simulated by the model is to be and the larger the runoff coefficient of individual flood is to be,while the earlier the flood peak occurs,the better the simulating effect of the flood process is to be and the higher the accuracy is to be as well.The correlation coefficient from the simulations made by the model on 50 flood events reaches 0.92 with the mean error of the peak flood of 5.54％ and the maximum under 20％,while the flood peak appearance time is 0 h.The result of the flood process forecast can be judged to be grade A.This model can be applied to the real-time flood forecast of medium and small-sized river.关键词
中小河流/洪水预报/流溪河模型/卫星遥感/灾害预警/分布式水文模型Key words
medium and small sized river/flood forecast/Liuxihe Model/satellite remote sensing/disaster early warning/distributed hydrological model分类
天文与地球科学引用本文复制引用
陈洋波,覃建明,王幻宇,董礼明,陈华..基于流溪河模型的中小河流洪水预报方法[J].水利水电技术,2017,48(7):12-19,27,9.基金项目
国家自然科学基金项目(50479033) （50479033）
国家“十二五”科技支撑计划项目(2012BAK10B06-04) （2012BAK10B06-04）
江西水利科技项目(KT201407) （KT201407）
广东省科技计划项目(2013B020200007) （2013B020200007）
