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Çѱ¹¼öÀÚ¿øÇÐȸ / v.42, no.11, 2009³â, pp.963-972
¾Ó»óºí Ä®¸¸ÇÊÅ͸¦ ¿¬°èÇÑ Ãß°èÇÐÀû ¿¬¼ÓÇü Àú·ùÇÔ¼ö¸ðÇü (II) : - Àû¿ë ¹× °ËÁõ -
( Stochastic Continuous Storage Function Model with Ensemble Kalman Filtering (II) : Application and Verification )
À̺´ÁÖ;¹è´öÈ¿;; ¼¼Á¾´ëÇб³ Åä¸ñȯ°æ°øÇаú;¼¼Á¾´ëÇб³ ¹°ÀÚ¿ø¿¬±¸¼Ò.Åä¸ñȯ°æ°øÇаú;;
 
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º» ¿¬±¸ÀÇ ¸ñÀûÀº ¾Ó»óºí Ä®¸¸ÇÊÅÍ ±â¹ý°ú ¿¬¼ÓÇü Àú·ùÇÔ¼ö¸ðÇüÀ» ¿¬°èÇÏ¿© °³¹ßÇÑ Ãß°èÇÐÀû ¿¬¼ÓÇü Àú·ùÇÔ¼ö¸ðÇüÀÇ Àû¿ë¼ºÀ» Æò°¡ÇϰíÀÚ Çϴµ¥ ÀÖ´Ù. ´ë»óÀ¯¿ªÀº ¾Èµ¿´ï°ú ÀÓÇÏ´ïÀ» Æ÷ÇÔÇÏ´Â Áöº¸ ¼öÀ§°üÃø¼Ò »ó·ùÀ¯¿ªÀ» ¼±Á¤ÇÏ¿´À¸¸ç 2006³â°ú 2007³â È«¼ö±â¿¡ ´ëÇØ ºÐ¼®À» ¼öÇàÇÏ¿´´Ù. È®Á¤·ÐÀû ¸ðÇüÀ» Àû¿ëÇÑ °á°ú Àå±â°£ÀÇ ¸ðÀDZⰣ¿¡ ´ëÇØ À¯ÃâÇØ¼®ÀÌ °¡´ÉÇÑ °ÍÀ» È®ÀÎÇÏ¿´´Ù. ¾Ó»óºí Ä®¸¸ÇÊÅÍ ±â¹ýÀ» Àû¿ëÇϱâ À§ÇØ Monte Carlo ¸ðÀDZâ¹ýÀ» Àû¿ëÇÏ¿© ¸ðÇüÀÔ·ÂÀÚ·á¿Í ¸Å°³º¯¼öµé¿¡ ´ëÇØ ¾Ó»óºí ¸â¹ö¸¦ »ý¼ºÇÏ¿´´Ù. Ãß°èÇÐÀû ¸ðÇü°ú È®Á¤·ÐÀû ¸ðÇüÀÇ ´©ÀûÀý´ë¿ÀÂ÷¸¦ ºñ±³ÇÑ °á°ú ¾Èµ¿´ï°ú ÀÓÇÏ´ïÀÇ 2007³â »ç»ó¿¡¼­ °¢°¢ 17.5 %¿Í 18.3 %ÀÇ Á¤È®µµ°¡ Çâ»óµÇ°í Áöº¸¼öÀ§°üÃø¼Ò¿¡¼­´Â 40 % ÀÌ»óÀÇ Á¤È®µµ°¡ Çâ»óµÇ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ÀÌ»óÀÇ °á°ú·ÎºÎÅÍ °üÃøÀ¯·®°úÀÇ ¿ÀÂ÷°¡ Å« ¸ðÀǰá°ú¿¡ À־´Â Ãß°èÇÐÀû ¸ðÇüÀÌ º¸´Ù Çâ»óµÈ °á°ú¸¦ µµÃâÇÏ´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù.
The objective of this study is to evaluate an application of stochastic continuous storage function model with ensemble Kalman filter technique. The case study is performed at the upstream basin of Jibo streamflow gauge including Andong and Imha dam. Test period is for the rainy season during 2006 and 2007. Long term runoff analysis is feasible in the case of using deterministic model. Ensemble members for input data and parameters are generated using Monte Carlo simulation for the purpose of applying ensemble Kalman filter technique. The cumulative absolute errors of stochastic model to the deterministic one are improved for the amount of 17.5 %, 18.3 % and more than 40.0 % for Andong dam, Imha dam and Jibo station, respectively. The results indicate that the stochastic model improves the accuracy of the simulated discharge considerably.
 
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¾Ó»óºí Ä®¸¸ÇÊÅÍ;Ãß°èÇÐÀû ¿¬¼ÓÇü Àú·ùÇÔ¼ö¸ðÇü;Monte Carlo ¸ðÀÇ;½Ç½Ã°£ È«¼ö¿¹º¸;ensemble Kalman filter;stochastic continuous storage function model;Monte Carlo simulation;real-time flood forecast;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.11, 2009³â, pp.963-972
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200903538424234)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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