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Çѱ¹¼öÀÚ¿øÇÐȸ / v.36, no.1, 2003³â, pp.33-44
ÀÚ¿¬ÇÏõÀÇ ¹«Â÷¿ø À¯È²°î¼±
( Dimensionless flow Duration Curve in Natural River )
¹Ú»ó´ö; °­¸ª´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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À¯È²°î¼±Àº ÇÏõÀ¯·®ÀÇ º¯µ¿¼ºÀ» ÇÔÃàÀûÀ¸·Î ³ªÅ¸³»°í ÀÖ´Ù. º» ¿¬±¸´Â ÀÎÀ§ÀûÀÎ À¯·®Á¶ÀýÀÌ ¾ø´Â ÀÚ¿¬ÇÏõÀÇ ¹«Â÷¿ø À¯È²°î¼±À» Á¶»çÇÏ¿© º¸¾Ò´Ù. À¯È²ºÐ¼®Àº IHP´ëÇ¥À¯¿ª°ú ´ëÇÏõ ÁÖ¿ä ¼öÀ§°üÃø ÁöÁ¡ÀÇ ¼ö¹®ÀڷḦ Åä´ë·Î ¼öÇàÇÏ¿´´Ù. À¯È²Àº À¯¿ª¸éÀû¿¡ ÀÇÁ¸Çϳª À¯È²°è¼ö´Â ÆÇ¼ö°è¼ö¸¦ Á¦¿ÜÇϸé À¯¿ª¸éÀûÀÇ º¯È­¿¡ ¹Î°¨ÇÏÁö ¾Ê¾ÒÀ¸¸ç ƯÈ÷ dz¼ö°è¼ö´Â ÀÏÁ¤ÇÑ °ªÀ» ³ªÅ¸³»¾ú´Ù. º» ¿¬±¸¿¡¼­ Æò¼ö·®¿¡ ´ëÇÑ °¥¼ö·® ¹× Àú¼ö·®ÀÇ ºñ·Î Á¤ÀÇÇÑ À¯È²º¯µ¿°è¼ö´Â À¯¿ª¸éÀûÀÌ Áõ°¡Çϸé ÀÛ¾ÆÁö°í ÇÏõ °æ»çÀÇ Áõ°¡¿¡ µû¶ó Ä¿Áø´Ù. Àú¼öÀ¯È²º¯µ¿¿¡ ºñÇÏ¿© °¥¼öÀ¯È² º¯µ¿ÀÌ À¯¿ª¸éÀûÀÇ º¯È­¿¡ ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î º¸¿©Áø´Ù.
Flow duration curves provide a compact summary of streamflow variability. In this study, characteristics of the dimensionless flow duration curve in natural rivers with the unregulated discharge were investigated. An analysis of flow duration characteristics was conducted with discharge data at stage-gauging stations of IHP representative basins and of the major rivers in Korea. Discharge characteristics are dependent on area of watershed. However, flow duration coefficients except drought duration coefficient are independent on that. Abundant flow duration coefficient was constant value. The coefficient of flow duration variability defined in this study as the ratio of the normal stream flow over the drought one is decreased with increasing of the watershed area, which implies that the watershed area affects the drought flow duration variability more than the low flow one. And the coefficient of flow duration variability is increased with the river gradient.
 
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¹«Â÷¿ø À¯È²°î¼±;À¯È²º¯µ¿;°¥¼ö°è¼ö;Àú¼ö°è¼ö;dimensionless flow duration curve;flow duration variability;drought duration coefficient;low duration coefficient;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.36, no.1, 2003³â, pp.33-44
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921555624)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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