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Çѱ¹ÇÏõȣ¼öÇÐȸ / v.39, no.3, 2006³â, pp.352-365
°£Ã´È£ (È­¿ËÈ£) »ý¼º ÃʱâÀÇ ¼ö¿Â°ú ¿°ºÐÀÇ °ø°£Àû ±¸Á¶¿Í °èÀýÀû º¯È­
( Spatial Structure and Seasonal Variation of Temperature and Salinity in the Early Stage of Reclaimed Brackish Lake (Hwaong Reservoir) )
½ÅÀç±â;À±Ãá°æ;Ȳ¼øÁø; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;°Ç±¹´ëÇб³ ȯ°æ°úÇаú;°Ç±¹´ëÇб³ ȯ°æ°úÇаú;
 
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º» ¿¬±¸´Â °£Ã´È£ Á¶¼º Ãʱ⠴ܰ迡 ÀÖ´Â È­¿ËÈ£¸¦ ´ë»óÀ¸·Î ¼öȯ°æÀÇ º¯È­¸¦ ÆÄ¾ÇÇϰíÀÚ 2002³â 6¿ùºÎÅÍ 2006³â 1¿ù±îÁö ¼öÇàÇÏ¿´´Ù. È­¿ËÈ£´Â ÇØ¾çȯ°æÀ» ´ã¼öÈ­½ÃŰ´Â °úÁ¤¿¡ ÀÖÀ¸¹Ç·Î ´Ù¾çÇÑ È¯°æ¿äÀÎ Áß¿¡¼­ °­¼ö·®, ¼ö¿Â ¹× ¿°ºÐµµÀÇ ¿ù º¯µ¿À» Áß½ÉÀ¸·Î ÇÏ¿´´Ù. ¼ö¿ÂÀÇ ¹üÀ§¿Í Æò±Õ°ªÀº °¢°¢ $-0.7{sim}33.4^{circ}C$, $13.6^{circ}C$À̾ú´Ù. »ó·ùºÎÀÇ ¼ö¿ÂÀº º½Ã¶${sim}$¿©¸§Ã¶°ú ¿©¸§Ã¶${sim}$°¡À»Ã¶·Î ÀüÀ̵ɶ§ ºü¸£°Ô Áõ°¡ ¶Ç´Â °¨¼ÒÇÏ¿´À¸³ª ÇÏõ À¯ÀÔ·®ÀÌ ¸¹Àº ½Ã±â¿¡´Â ÀϽÃÀûÀ¸·Î ´Ù¼Ò ±Þ°¨ÇÏ´Â Çö»óÀ» º¸À̱⵵ ÇÏ¿´´Ù. ¹Ý¸é¿¡, °Ü¿ïö¿¡´Â »ó·ùºÎ ÀúÃþÀÇ °æ¿ì Ç¥ÃþÀ̳ª ÇÏ·ùºÎº¸´Ù ¼ö¿ÂÀÌ ´Ù¼Ò ³ôÀº ¾ç»óÀ» º¸À̱⵵ ÇÏ¿´´Ù. ¿°ºÐÀÇ ¹üÀ§¿Í Æò±Õ°ªÀº °¢°¢ 0.3${sim}$32.3 psu, 25.3 psuÀ̾ú´Ù. ¿°ºÐÀº ¼öÃþ¿¡ µû¸¥ »óÇÏ ¼öÁ÷Àû Â÷À̰¡ ÇöÀúÇÏ¿© ÁßÃþ°ú ÀúÃþº¸´Ù Ç¥Ãþ¿¡¼­ Áõ°¨ º¯µ¿ÀÌ ¸Å¿ì ½ÉÇÏ¿´´Ù. ³²¾çõÀÌ À¯ÀԵǴ »ó·ùºÎÀÇ ÀúÃþÀ» Á¦¿ÜÇϰí´Â Àü Á¤Á¡¿¡¼­ Çö°ÝÇÑ Â÷À̸¦ º¸ÀÌÁö ¾Ê¾Ò´Ù. À̰ÍÀº Àú¼öÁö³» ¿°ºÐÀÇ ¼öÁ÷Àû ±¸¹è°¡ ¶Ñ·ÇÇÏ°Ô À¯ÁöµÇ°í ÀÖÀ½À» ÀǹÌÇÏ¿´´Ù. ¿°ºÐÀº ¿©¸§Ã¶ °­¿ì±â¿¡ ÇØ´çÇÏ´Â 6${sim}$10¿ù¿¡ º¯µ¿ÆøÀÌ ¸Å¿ì Äǰí, Ç¥ÃþÀÇ °æ¿ì Àú¿°¼ö°¡ »ó·ù¿¡¼­ ÇÏ·ù·Î È®ÀåµÇ´Â Çö»óÀÌ ¶Ñ·ÇÇÏ¿´´Ù. ÀÌ ½Ã±â¿¡ Ç¥ÃþÀÇ ¼ö»öÀº ȲÅä»öÀ¸·Î¼­ ÇÏõÀ¸·ÎºÎÅÍ À¯ÀÔ ÈÄ °ø±Þ À̵¿µÈ Àú¿°¼öÀÇ Å¹¼öÃþ(turbidity plume)À¸·Î µÚµ¤´Â ¾ç»óÀÌ Àü°³µÇ¾ú´Ù. Àú¼öÁö³» ¼ö¿ÂÀÇ »ó ${cdot}$ ÇÏ Â÷ÀÌ¿¡ ´ëÇÑ ¹üÀ§´Â $-10.6{sim}9.7^{circ}C$À̾ú´Ù ¶ÇÇÑ, Ç¥Ãþ°ú ÀúÃþÀÇ ¿°ºÐ Â÷ÀÌ´Â $-27.1{sim}30.0$ psu ¹üÀ§À̾ú´Ù. ¿°ºÐ ³óµµÀÇ Â÷À̰¡ Å« °æ¿ì´Â ´ã¼öÀÇ À¯ÀÔ·®ÀÌ Å©°Å³ª ¹è¼ö°©¹®ÀÇ Á¶ÀÛ¿¡ ÀÇÇÑ ÇØ¼öÀ¯ÀÔÀÌ ¸¹Àº »óÅ¿¡¼­ ³ªÅ¸³µ´Ù. ¼ö¿Â°ú ¿°ºÐÀÇ °ü°è´Â À½ÀÇ »ó°ü¼ºÀ» º¸¿©, Áï ¼ö¿ÂÀÌ ³ôÀ»¼ö·Ï ¿°ºÐ ³óµµ°¡ ³·Àº Ư¼ºÀ» º¸¿´´Ù.
In order to evaluate the change of aquatic environment in the reclaimed Hwaong Reservoir, situated in the early stage after construction, this study was conducted to measure the change of precipitation, temperature, and salinity from June 2002 to January 2006. The range and mean of temperature was $-0.7{sim}33.4^{circ}C$ and $13.6^{circ}C$, respectively. Temperature of upstream part rapidly changed during the transitional period; from spring to summer and from fall to winter. It showed abrupt decrease with high discharge from the streams temporarily. While, hypolimnetic temperature of upstream happened to be somewhat higher than that of surface or downstream. The range and mean of salinity was 0.3${sim}$32.3 psu and 25.3 psu, respectively. Vertical difference of salinity was marked, and the change in the surface water was much higher than middle or bottom layers. It showed the marked difference at all stations, except for the bottom layer of upstream into which Namyang Stream flows, indicating that vertical gradient of salinity is strongly sustained in the reservoir. Salinity was changed markedly during the storm period (June${sim}$October), and freshwater with low salinity was expanded from upstream to downstream along the surface layer. The surface of the reservoir was totally covered by the stream discharged water with a large amount of silt and low salinity during this period. The difference of temperature and salinity between the surface and bottom layer ranged $-10.6{sim}9.7^{circ}C$ and $-27.1{sim}30.0$ psu, respectively. The big difference of salinity appeared with a large discharge of freshwater from the streams or large input of seawater through the gate. Salinity was negatively correlated with temperature, indicating the influence of monsoon storm events on the salinity under the whole watershed scale of this brackish reclaimed reservoir.
 
Ű¿öµå
Hwaong reservoir;reclaimed reservoir;temperature;salinity;freshwater;seawater;brackish water;Monsoon;
 
Çѱ¹ÇÏõȣ¼öÇÐȸÁö / v.39, no.3, 2006³â, pp.352-365
Çѱ¹ÇÏõȣ¼öÇÐȸ
ISSN : 1976-8087
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200618317187429)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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