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Çѱ¹¼öÀÚ¿øÇÐȸ / v.38, no.8, 2005³â, pp.605-616
»êÁö ¼ÒÀ¯¿ª À¯Ãâ°î¼±Áö¼ö
( Curve Number for a Small Forested Mountainous Catchment )
¿À°æµÎ;Àüº´È£;ÇÑÇü±Ù;Á¤¼º¿ø;Á¶¿µÈ£;¹Ú¼ö¿¬; À°±º»ç°üÇб³ Åä¸ñ°øÇаú;À°±º»ç°üÇб³ Åä¸ñ°øÇаú;Çѱ¹ÅäÁö°ø»ç ¿¬±¸°³¹ßó;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿øÈ¯°æ¿¬±¸ºÎ;Çѱ¹Á¾ÇÕ±â¼ú°³¹ß°ø»ç;ÇÑÁøÁ¤º¸Åë½Å GIS ±â¼úÆÀ;
 
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º» ³í¹®¿¡¼­´Â Á¤¹ÐÇÑ ¼ö¹®±â»óÀڷḦ º¸À¯Çϰí ÀÖ´Â ¼³¸¶Ãµ ½ÃÇèÀ¯¿ªÀÇ °­¿ìÀ¯ÃâÀڷḦ ÀÌ¿ëÇÏ¿© »êÁö ¼ÒÀ¯¿ªÀÇ À¯Ãâ°î¼±Áö¼ö(CN)¸¦ »êÁ¤Çϰí, À̸¦ ÀÌ¿ëÇÏ¿© ±¹³» »êÁö ¼ÒÀ¯¿ª¿¡ ÀûÇÕÇÏ´Ù°í ÆÇ´ÜµÇ´Â ¼±Çà°­¿ì·®(ARC)ÀÇ Àû¿ë±âÁØÀ» Á¦½ÃÇÏ¿´´Ù. ¼³¸¶Ãµ ½ÃÇèÀ¯¿ªÀº $97%$°¡ »ê¸²À¸·Î ±¸¼ºµÇ¾î ÀÖ´Â ÀüÇüÀûÀÎ ¹Ì°³¹ß »êÁö ¼ÒÀ¯¿ªÀ¸·Î¼­ ±â¿ÕÀÇ 10°³ ÁÖ¿ä È£¿ì»ç»óÀ» ºÐ¼®ÇÏ¿© »êÁ¤µÈ CN°ªÀº $51{sim}89$ ¹üÀ§¿¡ ÀÖ¾úÀ¸¸ç Áß¾Ó°ª(median)Àº 72 Á¤µµÀÎ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¼±Çà°­¿ì·®°ú CN°úÀÇ °ü°è¿¡ ´ëÇÏ¿© °ËÅäÇÑ °á°ú º» ³í¹®¿¡¼­ Á¦±âÇÑ °¡¼³ÀÎ ${ulcorner}$5ÀÏ ¼±Çà°­¿ì·® º¸´Ù 1ÀÏ ¼±Çà°­¿ì·®ÀÌ »êÁö ¼ÒÀ¯¿ª¿¡ ´ëÇÑ CNÀ» °áÁ¤ÇÏ´Â µ¥¿¡ ´õ¿í Ÿ´ç¼ºÀÌ ³ôÀ» °Í${lrcorner}$ À̶ó´Â °¡¼³Àº Ÿ´çÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ º» ¿¬±¸¸¦ ÅëÇÏ¿© 1ÀÏ ¶Ç´Â 5ÀÏ ¼±Çà°­¿ì·®À¸·ÎºÎÅÍ »êÁö ¼ÒÀ¯¿ªÀÇ CNÀ» ÃßÁ¤ÇÒ ¼ö Àִ ȸ±ÍºÐ¼®½ÄÀ» Á¦¾ÈÇÏ¿´´Ù. ±¹³» »êÁö ¼ÒÀ¯¿ªÀÇ À¯Ãâ°î¼±Áö¼ö¿¡ ´ëÇÑ Ã¼°èÀûÀÎ ºÐ¼®ÀÌ °ÅÀÇ ¾ø´Â ½ÇÁ¤¿¡¼­ º» ¿¬±¸¸¦ ÅëÇÏ¿© ±¹³» »êÁö ¼ÒÀ¯¿ª¿¡ ´ëÇÑ ½ÇÃøÀڷḦ ±â¹ÝÀ¸·Î ¼±Çà°­¿ì·®À» ¹Ý¿µÇÑ CN »êÁ¤¹æ¹ýÀ» Á¦½ÃÇÔÀ¸·Î½á, ƯÈ÷ »ê¾ÇÁö¿ª¿¡¼­ ½ÇÃø°­¿ì¿¡ µû¸¥ À¯Ãâ¼ö¹®°î¼± ÀçÇö½Ã ¼±Çà°­¿ìÁ¶°ÇÀ» ¹Ý¿µÇÏ´Â ¿¹ºñÀûÀÎ °¡À̵å¶óÀÎÀÌ µÉ ¼ö ÀÖÀ» °ÍÀ¸·Î ±â´ëµÈ´Ù.
In this paper, runoff curve numbers (CN's) for a small forested mountainous catchment are estimated using rainfall-runoff data measured at Sulma experimental catchment every 10 minutes and a new guideline for applying the antecedent rainfall conditions (ARC's) for small mountainous watersheds in Korea is proposed. Sulma experimental catchment is a typical natural mountainous basin with $97%$ of forested land cover and CN's are estimated to be in the range between 51 and 89 with median value of 72. The test hypothesis stating as 1-day ARC is better than 5-day ARC in determining CN's for a small mountainous watershed is shown to be acceptable. Also, linear regression equations for the estimation of CN's for small mountainous catchments are proposed. As there is no significant investigations available on CN's for small mountainous catchments, the newly proposed relationships between CN's and ARC may be used as a preliminary guideline to assign CN's for the estimation of floods from rainfall data on mountainous regions.
 
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SCS À¯Ãâ°î¼±Áö¼ö;¼±Çà°­¿ì;ȸ±ÍºÐ¼®;ħÅõ;Ãʰú°­¿ì;»ê¸²;¼ÒÀ¯¿ª;SCS curve number;Antecedent rainfall condition;Regression analysis;Infiltration;Excess rainfall;Forest;Small catchment;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.38, no.8, 2005³â, pp.605-616
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200531234557638)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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