| 近40年来太湖汛情的变化与防洪对策 |
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| 引用本文： | 吴浩云.近40年来太湖汛情的变化与防洪对策[J].湖泊科学,1998,10(1):37-41. |
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| 作者姓名： | 吴浩云 |
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| 作者单位： | [1]琵琶湖研究所 [1] |
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| 基金项目： | BITEX'93资助项目 |
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| 摘 要： | 本文建立了一个大气，水耦合数值模型来研究琵琶湖的环流机制，模拟计算结果表明：１）在湖面上存在一个正的风涡度场以及白天的正散度场，晚上的负散度场，在温度分层的季节里，这一特殊的琵琶湖流流域大气边界层可以产生并维持北湖一稳定，强度较弱的气旋式环流。２）当考虑大气边界层的不均匀风场的影响时，湖中形成的环流比均匀风场驱动形成的环流比均匀风场驱动形成的环流更加稳定且维持时间更长．３）局地风场可以在湖中驱动形
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| 关 键 词： | 耦合模型 涡旋 水温 湖泊 数值模拟 大气边界层 |
| 收稿时间： | 3/7/1997 12:00:00 AM |
| 修稿时间： | 1997/10/15 0:00:00 |
Analysis of Flood Situation Change in Taihu Lakein the Past 40.Years and Respective Strategy for Flood Control |
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| Wu Haoyun.Analysis of Flood Situation Change in Taihu Lakein the Past 40.Years and Respective Strategy for Flood Control[J].Journal of Lake Science,1998,10(1):37-41. |
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| Authors: | Wu Haoyun |
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| Institution: | Taihu Lake Basin Authority, Ministry of Water Resources, Shanghai 200434 |
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| Abstract: | Taihu Lake is one of the five Iargest fresh 1akes.Located at the center of Taihu Lake Basin and controls the flood situation of Taihu Basin The main flood period of Taihu Lake and Basin is determined by plum rain period, which normally starts on June ll and ends on July 20.After an-alyzing the plum rain period in history, the highest water level of Taihu Lake in heavier flooding years, inflow and outflow around Taihu Lake in the past 22 years.the flod situation of Taihu Lake has changed, which is influenced by precipitation distribution, discharge change, and the operation of main channels such as the Taipu River and the Wangyu River.The decrease of dis-charge of Taihu Lake is primarily resulted from the accretion and reclaimed Land in East Taihu Lake.Studying the operational rule of main channels, dredging the mouths of the Taipu River and the Wangyu River.and reinforcing of the Around Thu Dyke are main measures to control flods of Taihu Lake Basin. |
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| Keywords: | Taihu Lake flod situation flood control strategy |
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