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Çѱ¹¼öÀÚ¿øÇÐȸ / v.38, no.6, 2005³â, pp.471-483
ÃÖÀû¼±Çüº¸Á¤À» ÀÌ¿ëÇÑ ¾Ó»óºí À¯·®¿¹Ãø ½Ã½ºÅÛÀÇ °³¼±
( Improvement of the Ensemble Streamflow Prediction System Using Optimal Linear Correction )
Á¤´ëÀÏ;ÀÌÀç°æ;±è¿µ¿À; ¼­¿ï´ëÇб³ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;¼­¿ï´ëÇб³ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;¼­¿ï´ëÇб³ Áö±¸È¯°æ½Ã½ºÅÛ°øÇкÎ;
 
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ÀÏ´ÜÀ§ °­¿ì-À¯Ãâ¸ðÇüÀÎ SSARR¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ÇѰ­, ³«µ¿°­, ¼¶Áø°­À¯¿ª¿¡ ¿ù ¾Ó»óºí À¯·®¿¹Ãø ½Ã½ºÅÛÀ» ±¸ÃàÇÏ¿´´Ù. ¿ì¼± SSARR¸ðÇüÀÇ ¿ù Æò±Õ À¯Ãâ·®¿¡ ´ëÇÑ ¸ðÀÇÁ¤È®¼ºÀ» Æò°¡ÇÑ °á°ú ÇѰ­°ú ³«µ¿°­À¯¿ª¿¡¼­´Â °ú¼ÒÃßÁ¤ÇÏ´Â °æÇâÀÌ ¶Ñ·ÇÇÏ¿´À¸¸ç, ¼¶Áø°­À¯¿ª¿¡¼­´Â ¸ðÀÇ¿ÀÂ÷ÀÇ ºÐ»êÀÌ Ä¿ Á¤È®¼º °³¼±ÀÌ ÇÊ¿äÇÏ¿´´Ù. ÃÖÀû¼±Çü º¸Á¤±â¹ýÀ» Àû¿ëÇÏ¿© SSARR¸ðÇüÀÇ ¸ðÀÇÀ¯·®À» º¸Á¤ÇÑ °á°ú, ¼¶Áø°­À» Á¦¿ÜÇÑ ÇѰ­°ú ³«µ¿°­À¯¿ªÀÇ °ËÁõÁöÁ¡¿¡¼­´Â ¸ðÀÇ Á¤È®¼ºÀÌ Å©°Ô °³¼±µÇ¾ú´Ù. ¶ÇÇÑ 1998³âºÎÅÍ 2003³â±îÁö ¿ù ¾Ó»óºí À¯·®¿¹ÃøÀ» ½Ç½ÃÇÏ¿© ¿¹Ãø Á¤È®¼ºÀ» Æò°¡ÇÏ¿´´Ù. ÇѰ­°ú ³«µ¿°­À¯¿ª¿¡¼­ ÃÖÀû¼±Çü º¸Á¤±â¹ýÀ» ÀÌ¿ëÇÒ °æ¿ì ¾Ó»óºí À¯·®¿¹Ãø Á¤È®¼ºÀÌ Å©°Ô °³¼±µÇ¾úÀ¸³ª, ¼¶Áø°­À¯¿ªÀº °³¼±È¿°ú°¡ ¹ÌºñÇÏ¿´´Ù.
A monthly Ensemble Streamflow Prediction (ESP) system was developed by applying a daily rainfall-runoff model known as the Streamflow Synthesis and Reservoir Regulation (SSARR) model to the Han, Nakdong, and Seomjin River basins in Korea. This study first assesses the accuracy of the averaged monthly runoffs simulated by SSARR for the 3 basins and proposes some improvements. The study found that the SSARR modeling of the Han and Nakdong River basins tended to significantly underestimate the actual runoff levels and the modeling of the Seomjin River basinshowed a large error variance. However, by implementing optimal linear correction (OLC), the accuracy of the SSARR model was considerably improved in predicting averaged monthly runoffs of the Han and Nakdong River basins. This improvement was not seen in the modeling of the Seomjin River basin. In addition, the ESP system was applied to forecast probabilistic runoff forecasts one month in advance for the 3 river basins from 1998 to 2003. Considerably improvement was also achieved with OLC in probabilistic forecasting accuracy for the Han and Nakdong River basins, but not in that of the Seomjin River basin.
 
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¾Ó»óºí À¯·®¿¹Ãø;ÃÖÀû¼±Çüº¸Á¤;È®·ü·ÐÀû ¿¹Ãø;SSARR¸ðÇü;ensemble streamflow prediction;optimal linear correction;probabilistic forecast;SSARR model;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.38, no.6, 2005³â, pp.471-483
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200531234554698)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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