相应涨差河道洪水预报模型研究及应用  

Research and Application of Flood Forecast Model of River Course with Corresponding Tide Range

作　　者：覃光华[1] 赵英林[1] 李记泽[1] 王建华[1] 

机构地区：[1]武汉水利电力大学

出　　处：《城市道桥与防洪》2001年第1期36-38,共3页Urban Roads Bridges & Flood Control

摘　　要：在原有相应涨差河道洪水预报模型的基础上 ,利用差分方法推导出仅用下游站流量或水位资料表达的改进型相应涨差模型。并用具有可变遗忘因子的递推最小二乘实时校正算法对模型参数进行在线识别。该模型用于长江枝城至监利河段的实际预报检验 ,证明模型结构合理 ,算法简捷 ,成果令人满意。On the basis of the flood forecast model of river course with the original corresponding tide range, it use differential method to develop the modified model with corresponding tide range expressed only by the flow or water level information in the down reaches station. At the same time, it makes on line distinguishing of the model parameters by recursion minimum quadratic multiplication real time correction algorithm with changeable forget factor. The model is used for examining the actual forecast of the Changjiang River sector from ZhiCheng to Jianli to prove the model has a reasonable structure, simple algorithm and satisfactory result.

关 键 词：河道洪水预报模型 相应涨差 差分法 递推最小二乘法 

分 类 号：P338.6[天文地球—水文科学]