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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.7, 2011³â, pp.577-590
À¯¿ª ¸ðÇü°ú ÇÏõ ¸ðÇüÀÇ ¿¬°è¸¦ ÅëÇÑ ³«µ¿°­ º»·ù È帧 ¿¹Ãø
( Numerical Estimations of Nakdong River Flows Through Linking of Watershed and River Flow Models )
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º» ¿¬±¸¿¡¼­´Â ³«µ¿°­ À¯¿ªÀ» ´ë»óÀ¸·Î À¯¿ª-ÇÏõ È帧 ¿¬°è ¸ðÇüÀ» ±¸ÃàÇÏ¿´´Ù. º» ¿¬±¸´Â ±âÈĺ¯È­¿¡ µû¸¥ ÇÏõ È帧 ¹× ¼öÁú ¿µÇ⠺м®À» À§ÇÑ Àü´Ü°èÀÇ ¿¬±¸ÀÌ´Ù. ³«µ¿°­ À¯¿ªÀ» ´ë»óÀ¸·Î À¯¿ª ¼ö¹® ¸ðÇüÀÎ SWAT ¸ðÇüÀ» ±¸ÃàÇÏ°í ³«µ¿°­ º»·ù EFDC ¸ðÇü¿¡ À¯·® °æ°èÀڷḦ Á¦°øÇÏ¿© º»·ù È帧À» ¿¹ÃøÇÏ¿´´Ù. À¯¿ª ¸ðÀǸ¦ ÅëÇØ °è»êµÈ À¯Ãâ·®À» º»·ù 13°³, Áö·ù 30°³ ÁöÁ¡¿¡¼­ 2004³âºÎÅÍ 2009³â±îÁöÀÇ È¯°æºÎ8ÀÏ ÀڷḦ ÀÌ¿ëÇÏ¿© °Ëº¸Á¤ÇÏ¿´´Ù. ¸ðÇüÀÇ Àû¿ë¼ºÀ» Æò°¡Çϱâ À§ÇÏ¿© % difference, NSE, $R^2$¸¦ »êÁ¤ÇÏ¿´À¸¸ç, % difference´Â ¸î¸î ÁöÁ¡À» Á¦¿ÜÇϰí´Â ´ëºÎºÐ 15% À̳»ÀÎ °ÍÀ¸·Î ³ªÅ¸³µ°í, NSE¿Í$R^2$ ¿ª½Ã ´ëºÎºÐ ÀûÁ¤ ¼öÁØÀÎ °ÍÀ¸·Î ¸ðÀÇ µÇ¾ú´Ù. ÇÑÆí, SWAT ¸ðÇüÀ¸·ÎºÎÅÍ º»·ùÀÇ »ó·ù ¹× Áö·ù °æ°èÀÇ À¯Ãâ·® °ªÀ» Á¦°ø¹Þ¾Æ EFDC¸ðÇü¿¡ ÀÔ·ÂÇÏ¿´°í ³«µ¿°­ º»·ù¿¡¼­ÀÇ 2007³âµµ È帧À» ¿¹ÃøÇÏ¿´´Ù. °è»êµÈ °á°ú¸¦ ³«µ¿°­ º»·ùÀÇ °¢ ¼öÀ§ °üÃø¼Ò¿¡¼­ÀÇ ÃøÁ¤ µ¥ÀÌÅÍ¿Í ºñ±³ÇÑ °á°ú, º» ¸ðÇüÀÌ Àú¼ö±â ¹× È«¼ö±â½Ã ¸ðµÎ Àß ¿¹ÃøÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ ¸¸°îºÎ ¹× ÇÏÁßµµ ºÎ±Ù¿¡¼­ÀÇ À¯¼Ó Áõ°¡¿Í °¨¼Ò Çö»ó µîÀ» Àß ¸ðÀÇÇÏ´Â °ÍÀ¸·Î È®ÀεǾú´Ù. ÇÑÆí, »ó·ù °æ°è·Î ºÎÅÍ 1¿ù1ÀÏ À¯ÀÔµÈ ¿°·áÀÇ À̵¿Çö»óÀ» ¸ðÀÇÇÑ °á°ú Çϱ¸¾ð±îÁö µµ´ÞÇϴµ¥ ¾à 65ÀÏÀÌ ¼Ò¿äµÇ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
In this study, the watershed and water body models were linked for the simulation of the Nakding river flow. This is a pre-step study for the estimation of the effect of the flow and water quality on the climate change. For models of watershed and river flow, the SWAT and EFDC were used, respectively. The runoff discharge at each boundary points for the simulation of the river flow was provided from the drainage basin model. The calculated runoff discharge by the SWAT model was compared with the measured data of the Ministry of Environment at 13 locations along the Nakdong river and 30 locations along the tributary streams. The computed water discharge was shown to be similar with the measured data. For the model calibration and verification, % difference, NSE, and $R^2$ were computed. The computed % difference was within 15% except of a few points. The NSE and $R^2$ were also within a fair level. The Nakdong river flow of 2007 was simulated by using the EFDC model. The comparison with the measured data showed that the model reflected the actual values of low and high flow well. Also, it was confirmed that the acceleration and deceleration in the curved areas were appropriately simulated. The movement of dye injected at the upstream boundary was simulated. The result showed that the arrival time up to the estuary dam was computed to be about 65 days.
 
Ű¿öµå
SWAT ¸ðÇü;EFDC ¸ðÇü;³«µ¿°­;À¯Ãâ·®;¿°·á³óµµ;SWAT model;EFDC model;Nakdong river;Runoff discharge;Dye concentration;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.7, 2011³â, pp.577-590
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201123163434094)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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