基于圩区产流与调蓄的大型平原河网水文水动力耦合模型研究
Study on Hydrology Hydrodynamic Coupling Model of Large Plain River Network Based on Runoff Generation and Regulation in Polder Area
罗志洁 1刘海生 1杜世鹏2
作者信息
- 1. 浙江同济科技职业学院,浙江杭州 311231
- 2. 杭州市萧山区农业农村局,浙江杭州 311251
- 折叠
摘要
构建可靠的水文水动力模型是减轻平原河网洪涝灾害的必要手段.以太湖流域杭嘉湖区为例,采用MIKE11和ArcGIS,通过河网概化、集水区划分、圩区内外独立的产汇流计算和调蓄分析等环节构建了杭嘉湖平原河网水文水动力耦合模型,选用"菲特"和"烟花"台风实测洪水数据验证了模型可行性.结果显示,模拟水位与实测水位绝对值相差0.01～0.09 m,水量结果误差为5.4％,表明模型准确可靠.本模型可为该地区防洪调度、工程规模论证等相关工作提供技术支撑,也可为相似地区水文水动力耦合模型的构建提供理论指导.
Abstract
Establishing a reliable hydrological and hydrodynamic model has become a necessary means for mitigating disaster losses in the plain river network.Taking Hangjiahu area in Taihu Basin as the research object,MIKE and Arc-GIS were used to establish a hydrological and hydrodynamic coupling model of plain river network through river network generalization,catchment division,hydrological calculation inside and outside of polder,regulation and storage analysis.The reliability of the model was verified by the measured hydrological data of"Feite"and"Yanhua"typhoon.The results show that the absolute difference between simulated water level and measured water level was 0.01-0.09 m,and the error between simulated and measured water volume was 5.4％.These results show that this model is reliable,and can provide technical support for flood prediction and engineering dispatching,as well as theoretical guidance for the construction of hydrological and hydrodynamic models in similar areas.
关键词
平原河网/集水区/圩区/产汇流/调蓄Key words
plain river network/catchment area/polder area/runoff yield and flow concentration/regulation and storage引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据