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KMID : 1024519950040020139
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Journal of the Environmental Sciences
1995 Volume.4 No. 2 p.139 ~ p.150
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Temporal Variations of Stratification-Destratification in the Deukryang Bay, Korea
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Lee Byung-Gul
Cho Kyu-Dae
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Abstract
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The Quantitative estimations of the stratification - destratification(SD) phenomena in Deukryang Bay, Korea have been carried out based on the data of wind speed, heat flux through the sea surface and tidal current amplitude. To find out the main factors causing SD, wv introduce the rate of energy balance of the surface heat flux, tidal and wind stirring proposed by Simpson and Hunter(1974). The calculated potential energy of three terms are compared, from which the energy of wind stirring effect was one order smaller than the heat flux and the tidal stirring. Using the results, we complement time integration of the potential energy with the several s values of 0.010~0.014 at interval 0.001 and with wind speeds of 1.5 and 2.0 times larger than observation values at land. It shows that the variation of SD phenomena in the bay mainly depended on tidal stirring and sea surface heating in summer if there is no exceptionally strong wind event like Typhoon. The stratification become to be foamed from about 5 July although the stratification a little decreases during the second spring tidal period of middle of July.
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KEYWORD
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Stratification, Destratification, Heat Flux, Tidal and Wind Strring, Potnetial Energy, Spring Tide, ε-values
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