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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.38, no.1, 2005³â, pp.105-117
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ÀΰøÈ£¿¡¼ ¸ó¼ø°ú ÅÂdz °¿ì¿¡ ÀÇÇÑ °íʼöÃþÀÇ À̵¿°ú ¼Ò¸êƯ¼º
( Dynamics of High Turbid Water Caused by Heavy Rain of Monsoon and Typhoon in a Large Korean Reservoir (Andong Reservoir) ) |
| ¹ÚÁ¤¿ø;½ÅÀç±â;ÀÌÈñ¹«;¹ÚÀçÃæ; °æºÏ´ëÇб³ »ý¹°Çаú;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;¾Èµ¿´ëÇб³ »ý¹°Çаú;Çѱ¹¼öÀÚ¿ø°ø»ç ¾Èµ¿´ï°ü¸®´Ü, ¾Èµ¿´ëÇб³ »ý¹°Çаú;
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| ³«µ¿° ¼ö°èÀÇ ÃÖ´ë ÀΰøÈ£ÀÎ ¾Èµ¿´ï Àú¼öÁö¿¡¼ 2002${sim}$2004³â µ¿¾È È«¼ö±âÀÇ ¼ö¿Â¼ºÃþ ±¸Á¶¿¡ µû¸¥ °íʼöÀÇ À¯ÀÔÆ¯¼º°ú ½Ã ${cdot}$ °ø°£Àû º¯µ¿À» Á¶»çÇÏ¿´´Ù. 6¿ùºÎÅÍ ¼ö¿Â¼ºÃþÀÌ Çü¼ºµÇ¾úÀ¸¸ç ¼ºÃþ±¸Á¶¿¡ µû¶ó À¯ÀÔ ¼ö±«ÀÇ À̵¿°æ·Î°¡ °áÁ¤µÇ¾ú°í °íʼöÀÇ À¯ÀÔ¿¡ ÀÇÇØ ¼ºÃþ±¸Á¶°¡ º¯ÇÏ¿´´Ù. °íʼö´Â À¯ÀÔ ½Ã±â¿Í ¼ö·®¿¡ °ü°è¾øÀÌ Àú¼öÁö »ó·ùºÎ¿¡¼´Â ½ÉÃþ·ù·Î À¯ÀԵǾú°í Áß·ùºÎ¿¡¼ ¹Ù´ÚÀ¸·ÎºÎÅÍ ºÐ¸®µÇ¾î ÁßÃþ ¹Ðµµ·ùÀÇ ÇüÅ·ΠÇÏ·ù±îÁö À̵¿ÇÏ¿´´Ù. ¶ÇÇÑ ÁßÃþ ¹Ðµµ·ùÀÇ Çü¼ºÁöÁ¡Àº À¯ÀÔ·®°ú ½Ã±â¿¡ µû¶ó °ø°£ÀûÀ¸·Î ´Ù¼Ò Â÷À̰¡ ÀÖ¾ú´Ù. À¯ÀÔ·®¿¡ ÀÇÇØ ¼ö¿Â¼ºÃþ°ú DO ºÐÆ÷°¡ º¯ÇÏ¿´°í, ½Ã±â¿¡ µû¶ó º¯¼öÃþ¿¡´Â 2°³ÀÇ ¼ö¿Â ±Þ°¨Ãþ°ú Àú»ê¼ÒÃþÀÌ °¢°¢ Á¸ÀçÇÏ¿´´Ù. ÃÖÇÏ·ù±îÁö À̵¿ÇÑ È«¼ö·®ÀÇ °íʼöÃþÀº »ó½Â·ù¸¦ Çü¼ºÇÏ¿© ¼ö½É 15 m ¾Æ·¡¿¡¼ ÃÖ´ë 20 m µÎ²²·Î °íʼöÃþÀ» Çü¼ºÇÏ¿´´Ù. °íʼöÃþÀº Àú¼öÁö ¹Ù´ÚÀ¸·Î ħÀüµÇÁö ¾Ê¾Ò°í ÁßÃþÀÇ Ãë¼ö±¸¸¦ ÅëÇØ ÇÏ·ù·Î ¹èÃâµÇ¾úÀ¸¸ç °¡À» ¼øÈ¯½Ã±â ÀÌÈÄ ¿ÏÀü ¼Ò¸êµÇ¾ú´Ù. |
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| During the period of heavy rain from 2002 to 2004, the characteristics of the inflow, temporal and spatial fluctuations of high turbid water according to thermal stratification were studied on the Andong Reservoir which is the largest artificial lake in the Nakdong River basin, Korea. Thermal stratification was formed in June. Its structure determined to the pathway of inflowing turbid water and has affected by the transportation of high turbid water. Regardless of the time and amount of inflow, the high turbid water showed the shape of underflow at the riverine zone, separated from the bottom at the transition zone and moved to the lacustrine zone with the shape of density current. The plunging point depended on the time and amount of inflow. The distributions of thermal stratification and DO concentrations were changed by inflowing discharge. Two thermoclines and minimum DO layers were found out existing at metalimnion in a specific time, respectively. The layer of high turbid water which formed with the thickness of 20 m at the maximum below the depth of 15 m moved toward dam. Not settled to the bottom, the newly formed layer was discharged through the intake-outlet and dispersed into all layers by the circulation in the fall. |
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| Ű¿öµå |
| Andong Reservoir;density current;heavy rain;monsoon;stratification;turbid water;turbidity;typhoon; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.38, no.1, 2005³â, pp.105-117
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200518317184009)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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