双向波水位演算模型参数动态修正  

Dynamic correction of parameters for bi-directional stage routing model

作　　者：张小琴[1,2] 包为民[1,2] 马德莲 

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098 [2]河海大学水文水资源学院,江苏南京210098 [3]温州珊溪水利经济发展有限责任公司,浙江温州325000

出　　处：《河海大学学报（自然科学版）》2010年第5期484-488,共5页Journal of Hohai University(Natural Sciences)

基　　金：国家自然科学基金(50679024);"十一五"国家科技支撑计划基金(2008BAB29B08-02);教育部长江学者和创新团队发展计划基金(IRT0717)

摘　　要：基于由水量平衡方程和槽蓄方程推导出的水位演算基本方程建立感潮河段双向波水位演算模型,将感潮河段预报断面的洪水过程视作上游洪水波和下游潮水波双向传播后的叠加.通过分析感潮河段双向波水位演算模型参数,提出了一种能同时考虑上下游水面比降对水位过程影响的参数动态修正方法.将该模型结合参动态修正方法应用于富春江和曹娥江感潮河段,取得了较好的水位模拟精度.A bi-directional stage routing model for tidal rivers was established based on the fundamental stage routing equation derived from the storage equation and the water balance equation.The flooding process at a section in a tidal reach was considered as the superposition of bi-directional propagation of upstream floods and downstream tidal waves in this model.Based on the analysis and simplicity of model parameters,an approach of dynamic correction of parameters was proposed,which could consider the effect of upstream and downstream hydraulic gradients on the water stages.Application cases of Fuchun River and Cao＇e River show that the proposed bi-directional stage routing model with dynamic correction of parameters can achieve satisfactory precision for simulating water stages in tidal rivers.

关 键 词：感潮河段 水位预报 双向波 参数动态修正 

分 类 号：P338.9[天文地球—水文科学]