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Çѱ¹¼öÀÚ¿øÇÐȸ / v.40, no.8, 2007³â, pp.601-615
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¼±ÅÃÃë¼ö¿¡ µû¸¥ ´ëûȣ ʼö Á¶ÀýÈ¿°ú ¹× ¼öÁú¿µÇ⠺м®
( Effect of Selective Withdrawal on the Control of Turbidity Flow and Its Water Quality Impact in Deacheong Reservoir ) |
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A selective withdrawal method has been widely used to control the quality of water released from a stratified reservoir and to improve downstream ecosystem habitats. Recently, several existing reservoir withdrawal facilities have been modified to accommodate multi-level water intake capabilities in order to adapt the impact of long-term discharge of high turbidity flow. The purpose of this study was to assess the effect of selective withdrawal method on the control of downstream turbidity and its impact on water quality in Daecheong Reservoir. A laterally integrated two-dimensional hydrodynamic and eutrophication model, which was calibrated and validated in the previous studies, was applied to simulate the temporal variations of outflow turbidity with various hypothetical selective withdrawal scenarios. In addition, their impacts on the algal growth as well as water quality constituents were analyzed in three different spatial domains of the reservoir The results showed that the costly selective withdrawal method would provide very limited benefits for downstream turbidity control during two years of consecutive simulations for 2004-2005. In particular, an excessive withdrawal from the epilimnion zone for supplying upper layer clean water resulted in movement of turbidity plume that contained high phosphorus concentrations upward photic zone, and in turn increased algal growth in the lacustrine zone. |
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Ű¿öµå |
¼±ÅÃÃë¼ö;ʵµ Á¦¾î;Àú¼öÁö ¼öÁú°ü¸®;´ëûȣ;Á¶·ù¼ºÀå;Selective withdrawal;Turbidity control;Water qualify management;Daecheong Reservoir;Algal growth; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.40, no.8, 2007³â, pp.601-615
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200734515888117)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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