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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.10, 2011³â, pp.843-851
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È®·ü±â»ó¿¹º¸¸¦ ÀÌ¿ëÇÑ ÁßÀå±â ESP±â¹ý °³¼±
( Improvement of Mid/Long-Term ESP Scheme Using Probabilistic Weather Forecasting ) |
±èÁÖö;±èÁ¤°ï;ÀÌ»óÁø; Çѱ¹¼öÀÚ¿ø°ø»ç K-water¿¬±¸¿ø ¼öÀÚ¿ø¿¬±¸¼Ò;Çѱ¹¼öÀÚ¿ø°ø»ç K-water¿¬±¸¿ø ¼öÀÚ¿ø¿¬±¸¼Ò;Çѱ¹¼öÀÚ¿ø°ø»ç K-water¿¬±¸¿ø ¼öÀÚ¿ø¿¬±¸¼Ò;
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¼ö¹®ÇÐ ºÐ¾ß¿¡¼ ÁßÀå±â À¯Ãâ·® ¿¹ÃøÀº ÀԷº¯¼öÀÇ ºÒÈ®½Ç¼º µîÀ¸·Î ÀÎÇÏ¿© È®·ü·ÐÀû ¹æ¹ýÀ» »ç¿ëÇÏ´Â °ÍÀÌ ¹Ù¶÷Á÷ÇÑ °ÍÀ¸·Î ¾Ë·ÁÁ® ¿Ô´Ù. º» ¿¬±¸¿¡¼´Â ±Ý°À¯¿ªÀ» ´ë»óÀ¸·Î ±¸¼ºµÈ ¹Ù ÀÖ´Â RRFS-ESP ½Ã½ºÅÛ¿¡ PDF-ratio ¹æ¹ýÀ» ±â¹ÝÀ¸·ÎÇÑ »çÀü󸮱â´ÉÀ» ÀåÂøÇÏ¿© º¸´Ù È¿À²ÀûÀÎ ÁßÀå±â ¿¹Ãø½Ã½ºÅÛÀ¸·ÎÀÇ È®ÀåÀ» ½ÃµµÇÏ¿© º¸¾Ò´Ù. À̸¦ À§ÇÏ¿© ±â»óû¿¡¼ Á¦°øÇÏ´Â È®·ü±â»óÁ¤º¸¸¦ ÀÌ¿ëÇÏ¿© °¡ÁßÄ¡¸¦ »êÁ¤Çϰí À̸¦ ±â¹ÝÀ¸·Î ½Ã³ª¸®¿Àº° ¿¹ÃøÈ®·üÀ» °»½ÅÇÏ¿´´Ù. ¿¹Ãø°á°ú¿¡ ´ëÇÏ¿© °¢ ±â¹ýº° ¿¹ÃøÁ¡¼ö¸¦ »êÁ¤ÇÏ¿© º» °á°ú ¿ì¼± ESP ±â¹ý¿¡ ÀÇÇÑ ¿¹ÃøÁ¡¼öÀÇ Æò±ÕÀÌ Ãʺ¸¿¹Ãø Á¡¼ö¸¦ »óȸÇÏ¿© º» ¿¬±¸¿¡¼ ±¸¼ºÇÑ RRFS-ESP ½Ã½ºÅÛÀÇ Àû¿ë¼ºÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ È®·ü±â»óÀü¸ÁÀ» ÀÌ¿ëÇÏ¿© °»½ÅÇÑ À¯ÀÔ·® ½Ã³ª¸®¿ÀÀÇ ¿¹ÃøÁ¡¼ö°¡ ESP ±â¹ý¿¡ ÀÇÇÑ ¿¹ÃøÁ¡¼ö¸¦ »óȸÇϰí ÀÖÀ½À» È®ÀÎÇÒ ¼ö ÀÖ¾î ESP ±â¹ý¿¡ ÀÇÇÑ ¿¹Ãø°á°ú¸¦ È®·ü±â»óÀü¸ÁÀ» ÀÌ¿ëÇÏ¿© °»½ÅÇÒ °æ¿ì ¿¹Ãø Á¤È®µµ¸¦ º¸´Ù °³¼±½Ãų ¼ö ÀÖÀ½À» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. |
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In hydrology, it is appropriate to use probabilistic method for forecasting mid/long term streamflow due to the uncertainty of input data. Through this study, it is expanded mid/long term forecasting system more effectively adding priory process function based on PDF-ratio method to the RRFS-ESP system for Guem River Basin. For implementing this purpose, weight is estimated using probabilistic weather forecasting information from KMA. Based on these results, ESP probability is updated per scenario. Through the estimated result per method, the average forecast score using ESP method is higher than that of naive forecasting and it confirmed that ESP method results in appropriate score for RRFS-ESP system. It is also shown that the score of ESP method applying revised inflow scenario using probabilistic weather forecasting is higher than that of ESP method. As a results, it will be improved the accuracy of forecasting using probabilistic weather forecasting. |
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Ű¿öµå |
È®·ü±â»ó¿¹º¸;PDF-ratio ¹æ¹ý;¿¹ÃøÁ¡¼ö;probabilistic weather forecasting;ESP scheme;PDF-ratio;prediction score; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.10, 2011³â, pp.843-851
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201132833919600)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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