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Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.12, 2008³â, pp.1231-1244
SWATÀ» ÀÌ¿ëÇÑ ÃæÁÖ´ï À¯¿ªÀÇ À¯Ãâ°î¼±Áö¼ö »êÁ¤ ¹æ¾È
( Estimation of Runoff Curve Number for Chungju Dam Watershed Using SWAT )
±è³²¿ø;ÀÌÁø¿ø;ÀÌÁ¤¿ì;ÀÌÁ¤Àº; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø;
 
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º» ¿¬±¸¿¡¼­´Â ±âÈÄÁ¶°Ç, ÅäÁöÀÌ¿ë ¹× Åä¾çÁ¶°Ç µîÀÇ À¯¿ªÀÇ ºñ±ÕÁú¼ºÀ» °í·ÁÇÒ ¼ö ÀÖ´Â SWAT ¸ðÇüÀ» ÀÌ¿ëÇÏ¿© È«¼ö·® °è»ê¿¡ Ȱ¿ëµÉ ¼ö ÀÖ´Â À¯Ãâ°î¼±Áö¼ö¸¦ »êÁ¤ÇÏ´Â ¹æ¹ýÀ» Á¦½ÃÇÏ¿´´Ù. ÀÌ ¹æ¹ýÀº Hawkins µî(1993)ÀÌ Á¦½ÃÇÑ Á¡±Ù À¯Ãâ°î¼±Áö¼ö »êÁ¤¹ýÀ» ±â¹ÝÀ¸·Î ÇϵÇ, ½ÇÃø È«¼ö·® ½Ã°£ÀڷḦ Á÷Á¢ ÀÌ¿ëÇÏÁö ¾Ê°í SWAT¿¡ ÀÇÇÑ ¸ðÀÇ ÁöÇ¥ À¯Ãâ·® ÀÏÀڷḦ ÀÌ¿ëÇÏ´Â Á¡ÀÌ Æ¯Â¡ÀÌ´Ù. SWAT ¸ðÇüÀÌ ÁöÇ¥À¯Ã⼺ºÐ·®À» »êÁ¤ÇÒ ¼ö ÀÖ°í ¼ÒÀ¯¿ª ºÐÇÒ¿¡ µû¸¥ °ø°£¸ðÀÇ ¹× À¯¿ªÀÇ ºñ±ÕÁú Ư¼ºÀ» ¹Ý¿µÇÒ ¼ö ÀÖ´Â ÀåÁ¡À» ÀÌ¿ëÇÑ °ÍÀ̸ç, ¶ÇÇÑ ÀÏÀڷḦ ÀÌ¿ëÇÔÀ¸·Î½á ´Ü±â»ç»ó ÀÚ·áÀÇ ¿À·ù¿¡ µû¸¥ ¿µÇâÀ» ÃÖ¼ÒÈ­ÇÒ ¼ö ÀÖ´Ù. ÀÌ ¹æ¹ý¿¡ ÀÇÇØ »êÁ¤µÈ À¯Ãâ°î¼±Áö¼ö´Â ¸ðÇü¿¡ ÀÇÇÑ À¯Ãâ·® ¸ðÀÇÄ¡¿Í °üÃøÄ¡ÀÇ ÀûÇÕ °úÁ¤À» °ÅÄ£ °ÍÀ¸·Î ´ë»ó À¯¿ªÀÇ À¯Ãâ Æ¯Â¡ÀÌ ¹Ý¿µµÈ °ÍÀÌ´Ù. º» Á¦¾È ¹æ¹ýÀ» ÃæÁÖ´ï »ó·ùÀ¯¿ª¿¡ ´ëÇØ Àû¿ëÇÏ¿© ÀüüÀ¯¿ª ¹× ÀÓÀÇ ¼ÒÀ¯¿ªÀÇ À¯Ãâ°î¼±Áö¼ö¸¦ »êÁ¤ÇÏ¿´°í, À̸¦ °­¿ì·®¿¡ µû¶ó Áö¼öÇÔ¼öÇüÀ¸·Î °¨¼ÒÇϴ ȸ±Í½ÄÀ» Á¦½ÃÇÏ¿´´Ù.
The objective of this study is to present a methodology for estimating runoff curve number(CN) using SWAT model which is capable of reflecting watershed heterogeneity such as climate condition, land use, soil type. The proposed CN estimation method is based on the asymptotic CN method and particularly, it uses surface flow data simulated by SWAT. This method has advantages to estimate spatial CN values according to subbasin division and to reflect watershed characteristics because the calibration process has been made by matching the measured and simulated streamflows. Furthermore, the method is not sensitive to rainfall-runoff data since CN estimation is on a daily basis. The SWAT based CN estimation method is applied to Chungju dam watershed. The regression equation of the estimated CN that exponentially decays with the increase of rainfall is presented.
 
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À¯Ãâ°î¼±Áö¼ö;ÁöÇ¥À¯Ã⼺ºÐ;runoff curve number;SWAT;asymptotic CN method;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.12, 2008³â, pp.1231-1244
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200803544453015)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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