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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.41, no.3, 2008³â, pp.360-366
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( Spatial and Temporal Dynamics of Turbid Water in Hypolimnetic Discharging Reservoir ) |
| ¹ÚÀçÃæ;Á¤¼®¿ø;¹ÚÁ¤¿ø;±èÈ£ÁØ; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø±âȹó;Çѱ¹¼öÀÚ¿ø°ø»ç ¾Èµ¿´ï°ü¸®´Ü;±¹¸³°ø¿ø°ü¸®°ø´Ü ±¹¸³°ø¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;
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| º» ¿¬±¸´Â ½É¼öÃþÀÇ °íÁ¤ Ãë¼ö±¸¸¦ ÅëÇØ ¹æ·ùÇÏ´Â ¾Èµ¿´ïÀ» ´ë»óÀ¸·Î 1ÀÏ ÃÖ´ë 99.4 mm, ÃÑ 299.1 mmÀÎ ´ÜÀÏ»ç»óÀÇ °¿ì·Î À¯ÀÔµÈ °íʼöÀÇ È£¼Ò ³» ½Ã °ø°£ÀûÀÎ °Åµ¿°ú ¹æ·ù¼öÀÇ Å¹µµ°¡ °¨¼ÒÇÏ´Â °æÇâÀ» Á¶»çÇÏ¿´´Ù. À¯ÀÔµÈ °íʼö´Â Áß·ùÁöÁ¡ºÎÅÍ È£¼Ò ¹Ù´Ú¿¡¼ ÀÌÅ»µÇ¾î ÁßÃþ ¹Ðµµ·ù·Î ÃÖÇÏ·ù±îÁö À̵¿ÇÏ¿´´Ù. °¿ì ÀÌÀüÀÇ È£¼Ò ³» ʵµ´Â 10 NTU ÀÌÇÏÀÇ ±ÕÀÏÇÑ ºÐÆ÷¸¦ º¸¿´À¸³ª °¿ì¿¡ ÀÇÇØ ¼ö½É 16 m¿¡ ÃÖ°í 290 NTUÀÇ °íʼö´ë°¡ Çü¼ºµÇ¾ú´Ù. °íʼö´Â °¿ì ÈÄ 3ÀϺÎÅÍ ¹æ·ù¼öÀÇ Å¹µµ¸¦ »ó½Â½ÃÄ×À¸¸ç 5Àϰ¿¡ 129 NTU·Î ÃÖ°í Źµµ¸¦ º¸¿´´Ù. ´ï±îÁö À̵¿ÇÑ Å¹¼öÃþÀº Ãë¼ö±¸ »óºÎ 5 m À̳»ÀÇ ¼ö½É¿¡ ÃÖ°í ³óµµ·Î ºÐÆ÷ÇÏ¿´À¸¸ç ÇÏ·ù ¹æ·ù¿¡ ÀÇÇØ ʼöÃþÀÇ µÎ²²¿Í ³óµµ°¡ °¨¼ÒÇÏ¿´´Ù. ¹æ·ù¼öÀÇ Å¹µµ°¡ 30 NTU±îÁö °¨¼ÒÇϴµ¥ 38ÀÏ, °¿ì ÀÌÀüÀÇ »óÅ·Πȸº¹µÇ´Âµ¥ 87ÀÏÀÌ ¼Ò¿äµÇ¾úÀ¸¸ç, °¨¼Ò°æÇâÀÇ »ó°ü°è¼ö´Â °¢°¢ 0.96, 0.97À̾ú´Ù. ÁßÃþ¿¡¼ ¹Ðµµ·ù¸¦ Çü¼ºÇÑ °íʼö´Â Ãë¼ö±¸ Á÷»óºÎ¿¡ ºÐÆ÷ÇÏ¸é¼ Ãë¼ö±¸ ¹æÇâÀ¸·Î Á¡Â÷ À¯ÀεǾî ÇÏ·ù·Î ¹èÃâµÇ¾úÀ¸¸ç È£¼Ò ¹Ù´ÚÀ¸·ÎÀÇ Ä§°Àº ÀϾÁö ¾Ê¾Ò´Ù. ¾Èµ¿È£·Î À¯ÀÔµÈ °íʼö´Â ½ÉÃþ¿¡ À§Ä¡ÇÑ Ãë¼ö±¸¸¦ ÅëÇØ È¿°úÀûÀ¸·Î ¹èÃâµÇ¹Ç·Î Ãë¼ö±¸ À§Ä¡´Â °íʼö ¹èÁ¦¿¡ ÀûÁ¤ÇÑ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| The spatial and temporal variations of the high turbid water by a single event of heavy rain (total 299.1 mm and daily maximum 99.4 mm) were studied in Andong Reservoir, which has hypolimnetic discharges. Turbid water entered into the reservoir, was isolated from the bottom at the midreservoir and then passed through the metalimnion as an interflow current in the lacustrine zone. Maximum turbidity was 290 NTU at 16 m depth of the midreservoir, but the initial turbidity showed about 10 NTU in the reservoir before the rainfall. Turbid water in the reservoir affected to increase the withdrawal turbidity from the 3rd day after the rainfall, the maximum turbidity was 129 NTU at 5th day after the rainfall. Turbid water that flew towards the downreservoir distributed within 5 m above the outlet gate of the intake tower, showing the maximum turbidity, and that was decreased in its thickness and concentration by discharging through the intake tower. It has taken 38 days until the turbidity in the withdrawal reduced to 30 NTU, and 87 days to reduce the turbidity to the way when it was before the rainfall, with the correlation coefficient of 0.96 and 0.97, respectively. Turbid water was withdrawn from the reservoir by entraining into the intake tower as a form of the interflow, and not be settled down to the bottom of the reservoir. Therefore, we assessed that the depth of the withdrawal was appropriately positioned in Andong Reservoir, so as to withdraw the turbid water effectively from the reservoir. |
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| Ű¿öµå |
| Andong Reservoir;hypolimnion;interflow;turbid water;withdrawal; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.41, no.3, 2008³â, pp.360-366
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200833338919342)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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