| 摘要: |
| 针对目前黄河呼和浩特段污染日趋严重,没有合理、完善的水动力模型为流域水环境污染物迁移、扩散和降解模拟提供基础模型的问题,基于MIKE11水动力模块、降雨径流模块构建了黄河呼和浩特段水动力与降雨径流耦合模型,对黄河呼和浩特段降雨径流、水位、流量进行模拟分析,结果表明:降雨径流模型纳什系数E≤0.8的占2.19%,E≤0.9的占7.39%,其余为E>0.9,相对误差σ为0.04%~19.88%,黄河呼和浩特段水动力与降雨径流耦合模拟纳什系数E≥0.99,相对误差σ为0.23%~1.54%;01-06月降雨径流量0.46~8.36 m3/s,10月达到全年最大值,为26.16 m3/s;10月之后呈线性下滑趋势,并到12月初出现急剧下降状态;头道拐、河口镇、喇嘛湾断面02-03月各断面温度开始逐渐回升,且具有一定的突变现象,水位和流量突变范围分别为2.5~3.5 m和1 380~1 400 m3/s,04-12月和1月黄河呼和浩特段水位和流量相对平稳,变化范围分别为1.8~1.3 m和790~800 m3/s,并在07-09月出现了一年当中的丰水期,水位和流量最大值可达988.6 m和1 162.5 m3/s。 |
| 关键词: 黄河 河网构建 边界条件 降雨径流模型 水动力模型 |
| DOI：10.11841/j.issn.1007-4333.2016.07.15 |
| 投稿时间：2015-06-30 |
| 基金项目:内蒙古自治区科技计划项目(20130427);国家自然科学基金项目(51169018,51369021) |
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| Hydrodynamic and rainfall-runoff coupling model construction of the Yellow River at Huhhot |
|
FENG Li-zhong1, PEI Guo-xia1, LV Xin-ge2, ZHANG Kun2, WANG Chao2, ZHAO Wen-jia2
|
| (1.College of Water Resources and Civil Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China;2.Inner Mongolia Environment Sciences Acadamy, Huhhot 010010, China) |
| Abstract: |
| Aiming at the problem of water environment pollution of Yellow River at Huhhot, a hydrodynamic and rainfall-runoff coupling model of the Yellow River Hohhot section was constructed to simulate and analyze the rainfall-runoff、water level and discharge based on MIKE11 hydrodynamic and rainfall-runoff models.The results showed that:1) 2.19% of the Nash-Sutcliffe coefficient of rainfall-runoff model were lower than 0.8, 7.39% were lower than 0.90, and the rest was more than 0.90.The relative error was ranged from 0.04% to 19.88%.The Nash-Sutcliffe coefficients of hydrodynamic and rainfall-runoff coupling model in the Yellow River at Hohhot was over 0.99 and its relative error was 0.23%-1.54%;2) From January to June, the rainfall-runoff discharge was 0.46-8.36 m3/s, and reached the maximum value in October, which was 26.16 m3/s.The linear declined after October, with a sharp fell in early December;3) From February to March, the temperature of Toudaoguai, Hekouzhen and Lamawan sections began to rise gradually and displayed a mutation phenomenon.And the water level and discharge separately were 2.5-3.5 m and 1 380-1 400 m3/s, respectively.From April to December and January, the water level and discharge remained relatively stable, which were 1.8-1.3 m and 790-800 m3/s, respectively.From July to September, the high water season of a year appeared and the water level and discharge separately were 988.6 m and 1 162.5 m3/s respectively. |
| Key words: Yellow River river network construction boundary conditions rainfall-runoff model hydrodynamic model |
