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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.1, 2011³â, pp.51-64
´ëÀ¯¿ª È«¼ö¿¹ÃøÀ» À§ÇÑ ¿¬¼ÓÇü °­¿ì-À¯Ãâ¸ðÇü °³¹ß
( Development of Continuous Rainfall-Runoff Model for Flood Forecasting on the Large-Scale Basin )
¹è´öÈ¿;À̺´ÁÖ; ¼¼Á¾´ëÇб³ ¹°ÀÚ¿ø¿¬±¸¼Ò Åä¸ñȯ°æ°øÇаú;±¹¸³±â»ó¿¬±¸¼Ò ÀÀ¿ë±â»ó¿¬±¸°ú ¼ö¹®ÀÚ¿ø¿¬±¸ÆÀ;
 
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º» ¿¬±¸¿¡¼­´Â ´ëÀ¯¿ªÀÇ È«¼ö¸ðÀǰ¡ °¡´ÉÇÑ ¿¬¼ÓÇü °­¿ì-À¯Ãâ¸ðÇüÀ» °³¹ßÇϰíÀÚ Çϴµ¥ ±× ¸ñÀûÀÌ ÀÖ´Ù. À̸¦ À§ÇØ °¡º¯Àú·ùº¯¼ö¿Í À¯Ãâ°î¼±Áö¼ö¸¦ ±â¹ÝÀ¸·Î ÇÏ´Â ½Ã´ÜÀ§ ÁöÇ¥À¯Ãâ·® »êÁ¤¹æ¹ýÀ» °³¹ßÇÏ¿´À¸¸ç ¼ö¹®¼ººÐÀ» Åä¾ç¼öºÐ¿¡ ´ëÇÑ ¿¬¼Ó¹æÁ¤½Ä¿¡ Àû¿ëÇÏ¿© ¿¬¼ÓÀûÀÎ °­¿ì¿¡ ´ëÇÑ Åä¾ç¼öºÐ ¸ðÀǰ¡ °¡´ÉÇϵµ·Ï ¸ðÇüÀ» ±¸¼ºÇÏ¿´´Ù. ¶ÇÇÑ À¯Ãâ¼ö¹®¼ººÐ°ú À¯¿ª Àú·ùÇÔ¼ö¸ðÇüÀ» ¿¬°èÇÏ¿© À¯¿ª¿¡ ´ëÇÑ ¿¬¼ÓÀûÀÎ À¯Ãâ¸ðÀǰ¡ °¡´ÉÇϵµ·Ï ÇÏ¿´À¸¸ç Çϵµ Àú·ùÇÔ¼ö¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ´ëÀ¯¿ª¿¡ ´ëÇÑ À¯Ãâ¸ðÀǰ¡ °¡´ÉÇϵµ·Ï ¸ðÇüÀ» °³¹ßÇÏ¿´´Ù. ´ë»óÀ¯¿ªÀº ³«µ¿°­ À¯¿ªÀ» äÅÃÇÏ¿´À¸¸ç 2006³â(º¸Á¤±â°£) ¹× 2007~2008³â(°ËÁõ±â°£)ÀÇ È«¼ö±â°£ µ¿¾È º»·ù¿Í Áö·ù¿¡ À§Ä¡ÇÑ 8°³ À¯·®°üÃøÁöÁ¡¿¡ ´ëÇØ¼­ ¸ðÇüÀÇ Á¤È®µµ Æò°¡¸¦ ¼öÇàÇÏ¿´´Ù. ¸ðµç Æò°¡ÁöÁ¡¿¡¼­ ¸ðÀÇÀ¯·®ÀÌ °üÃøÀ¯·®°ú À¯»çÇÑ °á°ú¸¦ º¸ÀÌ¸ç º¸Á¤±â°£°ú °ËÁõ±â°£ÀÇ ¸ðÇüÈ¿À²¼º°è¼ö´Â °¢°¢ 0.81~0.95¿Í 0.70~0.94 ¹üÀ§ÀÇ ¿ì¼öÇÑ °á°ú¸¦ º¸ÀÌ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ¶ÇÇÑ °­¿ì¿¡ ´ëÇÑ Åä¾ç¼öºÐÀÇ °Åµ¿°ú ¼ö¹® ¼ººÐ ¹ß»ý·®¿¡¼­µµ ÇÕ¸®ÀûÀÎ °á°ú¸¦ µµÃâÇÏ´Â °ÍÀ¸·Î È®ÀεǾú´Ù. ÀÌ»óÀÇ °á°ú·ÎºÎÅÍ º» ¿¬±¸¿¡¼­ °³¹ßµÈ ¿¬¼ÓÇü °­¿ì-À¯Ãâ¸ðÇüÀº ´ëÀ¯¿ªÀÇ È«¼ö¿¹Ãø¿¡ Ȱ¿ëÀÌ °¡´ÉÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù.
The objective of this study is to develop a continuous rainfall-runoff model for flood prediction on a large-scale basin. For this study, the hourly surface runoff estimation method based on the variable retention parameter and runoff curve number is developed. This model is composed that the soil moisture to continuous rainfall can be simulated with applying the hydrologic components to the continuous equation for soil moisture. The runoff can be simulated by linking the hydrologic components with the storage function model continuously. The runoff simulation to large basins can be performed by using channel storage function model. Nakdong river basin is selected as the study area. The model accuracy is evaluated at the 8 measurement sites during flood season in 2006 (calibration period) and 2007~2008 (verification period). The calibrated model simulations are well fitted to the observations. Nash and Sutcliffe model efficiencies in the calibration and verification periods exist in the range of 0.81 to 0.95 and 0.70 to 0.94, respectively. The behavior of soil moisture depending on the rainfall and the annual loadings of simulated hydrologic components are rational. From this results, continuous rainfall-runoff model developed in this study can be used to predict the discharge on large basins.
 
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È«¼ö¸ðÀÇ;¿¬¼ÓÇü °­¿ì-À¯Ãâ¸ðÇü;Àú·ùÇÔ¼ö¸ðÇü;³«µ¿°­;flood prediction;continuous rainfall-runoff model;storage function model;Nakdong river;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.1, 2011³â, pp.51-64
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201107049668127)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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