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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.37, no.4, 2004³â, pp.423-430
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¼±Åà Ãë¼öÇÏ´Â Àú¼öÁö¿¡¼ ʼöÀÇ µ¿ÅÂ
( Dynamics of Turbid Water in a Korean Resernvoir with Selective Withdrawal Discharges ) |
| ½ÅÀç±â;Á¤¼±¾Æ;ÃÖÀÏȯ;Ȳ¼øÁø; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;°Ç±¹´ëÇб³ ȯ°æ°úÇаú;
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| º» ¿¬±¸´Â ¼±Åà Ãë¼öÇÏ´Â Àú¼öÁö¿¡¼ À帶 ÀüÈÄ¿¡ ʼöÀÇ °Åµ¿À» ÆÄ¾ÇÇϰíÀÚ ÇÏ¿´´Ù. °¼ö·®Àº 11¿ù-5¿ù¿¡ Àû¾ú°í, 6¿ù-10¿ù¿¡ dzºÎÇÏ¿© ´ëºñ°¡ µÇ¾ú´Ù. ¼ö¹®¿¡ ÀÇÇÑ ¹æ·ù´Â ¼±Çà °¼ö·®°ú À¯ÀÔ·®ÀÌ °¢°¢ 50mm, $80;m^3^s{-1}$ÀÌ»óÀÏ ¶§ Á¶À۵Ǿú°í, ±× ¿Ü ±â°£Àº ´ëºÎºÐ Ãë¼öžÀ» ÅëÇØ ¹èÃâµÇ¾ú´Ù. ÇÏ·ùºÎ¸¦ Áß½ÉÀ¸·Î ºñ±³ÇÒ ¶§, À帶 ÀüÈÄ ¼öÁß Å¹µµ Â÷ÀÌ´Â Æò±Õ°ªÀÌ 29.9NTU·Î¼ À帶 ÈÄ¿¡ Å©°Ô Áõ°¡ÇÏ¿´´Ù. ʼö¿¡ Æ÷ÇÔµÈ ÀÔÀÚ Å©±âÀÇ ¹üÀ§´Â 0.435-$482.9;{mu}m$À̾ú°í, Àü Á¤Á¡¿¡¼ clay¼ººÐÀÇ ¹Ì¼¼¸³ÀÚ·Î °¥¼ö·Ï Å©±â ºÐÆ÷°¡ ´õ¿í Á¶¹ÐÇÏ¿´À» »Ó¸¸ ¾Æ´Ï¶ó »ó´ëÀûÀ¸·Î Â÷ÁöÇÏ´Â ºñÀ²µµ ³ô¾Ò´Ù. ʼöÀÇ ÀÔÀÚ ºÐÆ÷¿¡¼ clay´Â 94.4-98.9%, silt´Â 1.1-5.6% ¹üÀ§·Î¼ ÃÑ ÀÔÀÚ¼öÀÇ ´ëºÎºÐÀ» Â÷ÁöÇÏ¿´´Ù. ÀÔÀÚ ºÐÆ÷¿¡ ÀÇÇÑ Å¹¼öÀÇ È帧À» ºÐ¼®ÇÑ °á°ú, Àú¼öÁöÀÇ ÇÏ·ùºÎ¿¡¼ ÃÑÀÔÀÚ¼ö´Â ÀúÃþ¿¡¼ Ç¥ÃþÀ¸·Î °¥¼ö·Ï ¼±ÇüÀûÀÎ Áõ°¡°¡ ¶Ñ·ÇÇÏ¿´´Ù. À̰ÍÀº Àú¼öÁöÀÇ ¼ö¸®ÇÐÀû ȯ°æ°ú ¹ÐÁ¢ÇÑ °ü·Ã¼ºÀÌ ÀÖ¾ú°í, ¼±ÅÃÃë¼öž°ú ¼ö¹®À» ÅëÇÑ ¹æ·ù¿¡ ÀÇÇÑ ¿µÇâÀÌ Å« °ÍÀ¸·Î ÃßÁ¤µÇ¾ú´Ù. ÇÏõÀ¸·ÎºÎÅÍ À¯ÀÔµÈ Å¹¼ö´Â Áß·ùºÎ¿¡¼ ħ°µÇ´Ù°¡ ÇÏ·ùºÎ¿¡¼ ÀçºÎÀ¯ÇÏ´Â Çö»óÀÌ ¹ß»ýÇÔÀ¸·Î¼ Ç¥Ãþ-ÁßÃþÀ» ÅëÇÑ Å¹¼ö À̵¿ÀÌ ÇöÀúÇÏ¿´´Ù. µû¶ó¼, ÇâÈÄ Àú¼öÁö ¼öÁú°ü¸® Ãø¸é¿¡¼ ÀÌ¿¡ ´ëÇÑ À°¼öÇÐÀû ¿µÇâÀ» ±Ô¸íÇÒ Çʿ伺À» Á¦½ÃÇϰíÀÚ ÇÑ´Ù. |
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| This study intended to understand movements of turbid water in selective with drawal reservoirs before and after summer monsoon. Mean rainfall during November-May was low, compared to that during June-October. The reservoir water was discharged through watergates when previous rainfall and inflow exceeded 50 mm and $80;m^3s^{-1}$, respectively. Intake towers were generally used except for the period of the high runoff. Average turbidity in gown-reservoir showed a difference of 29.9 NTU between premonsoon and postmonsoon. Diameter of particles of turbid water ranged between 0.435 and $482.9;{mu}m$. Fine particles such as clay were much denser than the larger particle. In the whole stations, clay component was relatively higher with a proportion of that in the particle distribution. Particle composition of turbid water showed that clay consisted of 94.4-98.9% and silt made of 1.1-5.6%. Analysis on turbid water movements derived from particle distribution showed a linear increase from the deep layer toward the surface layer in lower area of a reservoir. This was closely related with the hydraulic behavior of the reservoir, and heavily affected by the discharges through selective withdrawal towers and watergates. Turbid water originated from stream sediments in the middle area then resuspended in the down-reservoir causing a movement between the surface and middle layers of the reservoir. Therefore, such phenomenon needs to be understood for reservoir water quality management. |
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| Ű¿öµå |
| selective withdrawal;turbid water;turbidity;particle;reservoir;monsoon; |
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Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.37, no.4, 2004³â, pp.423-430
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200418317183516)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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