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粤西水东潮汐通道流速不对称性及流速模拟分析
彭炳健1
中山大学地理系
摘要:
本文分析了广东西部的水东泻湖-潮汐通道不同地段流速的分布持性。指出通道涨落潮流速不对称主要是由于潮水位不对称引起,通道潮流流速过程一方面决定于潮水位的涨落变率,另一方面与泻湖纳潮水域的地形及通道咽喉断面面积随水位变化的特性有关。
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基金项目:
VELOCITY ASYMMETRY AND SIMULATING ANALYSIS OF TIDAL INLET AT SHUIDONG IN THE WESTERN GUANGDONG
Abstract:
This paper analyses the distributional characteristic of ebb and flood velocity at different location in lagoon-tidal inlet systems of Shuidong. The asymmetry of ebb and flood velocity is principally caused by the asymmetry of tidal stage. Velocity in tidal inlet is dependent not only on the rate of the rise and fall of tidal stage, but also on the morphologic characteristic of storage area of lagoon and the peculiarity of the elevation of the throat section. On this account, it is possible to simulate velocity hydrograph in tidal inset using the tidal stage hydrography.
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