| 1998年长江中游洪水系统反演及高洪水位形成原因探讨 |
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| 引用本文： | 胡四一,施勇.1998年长江中游洪水系统反演及高洪水位形成原因探讨[J].水科学进展,1999,10(3):242-250. |
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| 作者姓名： | 胡四一 施勇 |
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| 作者单位： | 水利部南京水文水资源研究所, 江苏南京210024 |
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| 基金项目： | 国家杰出青年科学基金资助项目(59825118)。 |
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| 摘 要： | 采用描述江湖洪水运动的数学模型,对长江中游1998年洪水进行实况复演和还原计算,定量分析三口分流变化、洞庭湖湖容扩大、分蓄洪运用对荆江河段、洞庭湖区以及城陵矶至汉口河段水情的相对影响,结合定性的物理解释,深入探讨了1998洪水高洪水位的形成原因及其与江湖水情的相互作用规律,并对退田还湖和三峡水库的防洪作用进行了论证。
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| 关 键 词： | 防洪 长江中游 高洪水位 成因 洪水反演 |
| 收稿时间： | 1999-03-16 |
Systematic Analyses on Abnormally High Flood Stages of Middle Yangtze River in 1998 |
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| HU Siyi,SHI Yong,QI Chen,WANG Yintang,WU Yongxiang.Systematic Analyses on Abnormally High Flood Stages of Middle Yangtze River in 1998[J].Advances in Water Science,1999,10(3):242-250. |
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| Authors: | HU Siyi SHI Yong QI Chen WANG Yintang WU Yongxiang |
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| Institution: | Nanjing Institute of Hydrology and Water Resources, Nanjing 210024, China |
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| Abstract: | The flood event in the middle Yangtze River(Changjiang River)in 1998 is simulated and rebuilt,utilizing a numerical model characterizing flood routing in the river-lake system,to quantificationally analyze how the changes of three diversion rivers along Jingjinang reach,of Dongting Lake storage volume,of flood storage & diversion have influenced the flood situations in Jingjiang reach,Dongting Lake,and Chenglingji-Hankou reach.Combined with qualitative physical interpretation,the cause of abnormally high flood stages in 1998 and its interaction with flooding in the river-lake-coupled system are thoroughly discussed.In addition,the effects of restoring the farmland to natural state and of Three-Gorge Reservoir in the flood in 1998 are presented. |
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| Keywords: | flood control middle Yangtse River cause of high flood level flood reconstruction |
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