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Çѱ¹¼öÀÚ¿øÇÐȸ / v.35, no.5, 2002³â, pp.541-552
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( Parameter Calibrations of a Daily Rainfall-Runoff Model Using Global Optimization Methods ) |
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º» ¿¬±¸¿¡¼´Â ÀüüŽ»ö±â¹ý Áß Simplex¹ýÀÇ ¿ø¸®¸¦ ÀÌ¿ëÇÑ SCE-UA¹ý°ú Annealing-Simplex (A-S)¹ýÀ» ÀÏÀ¯Ãâ·® ÃßÁ¤ ¼ö¹®¸ðÇüÀÎ ÅÊÅ©¸ðÇüÀÇ ¸Å°³º¯¼ö º¸Á¤¿¡ Àû¿ëÇÏ¿© ±¹ºÎŽ»ö±â¹ýÀÎ Downhill Simplex¹ýÀÇ °á°ú¿Í ºñ±³ÇÏ¿© Ž»ö´É·ÂÀ» Æò°¡ÇÏ¿´´Ù. ¿ÀÂ÷°¡ ¾ø´Â ÇÕ¼ºÀڷḦ »ç¿ëÇÑ º¸Á¤¿¡¼ A-S¹ýÀÌ ¸ñÀûÇÔ¼ö¿¡ °ü°è¾øÀÌ Àü¿ªÃÖÀûÇØ¸¦ Ž»öÇÏ´Â °á°ú¸¦ ³ªÅ¸³ÂÀ¸¸ç, SCE-UA¹ýÀº ABSERR¸¦ ¸ñÀûÇÔ¼ö·Î »ç¿ëÇÒ °æ¿ì¿¡ Àü¿ªÃÖÀûÇØ¸¦ Ž»öÇÏ´Â °á°ú¸¦ ³ªÅ¸³ÂÀ¸¸ç, ´Ù¸¥ ¸ñÀûÇÔ¼ö¸¦ »ç¿ëÇÏ´Â °æ¿ì¿¡´Â ÃÖÀûÇØ¿¡ °¡±î¿î Ž»ö°á°ú¸¦ ³ªÅ¸³Â´Ù. Downhill Simplex¹ýÀº ÃʱⰪ¿¡ µû¶ó ´Ù±Ù Ž»ö°á°ú¸¦ ³ªÅ¸³ÂÀ¸¸ç, ÃÖÀûÇØ¿¡ °¡±î¿î ÃʱⰪÀ» »ç¿ëÇÒ °æ¿ì Àü¿ª ÃÖÀûÇØ¸¦ Ž»öÇÏ´Â °á°ú¸¦ ³ªÅ¸³Â´Ù. ½ÇÃøÀڷḦ »ç¿ëÇÑ º¸Á¤¿¡¼´Â A-S¹ý°ú SCE-UA¹ýÀÌ ¸ñÀûÇÔ¼ö¿¡ °ü°è¾øÀÌ ¾çÈ£ÇÑ °á°ú¸¦ ³ªÅ¸³Â´Ù. µÎ °³ÀÇ ¼·Î ´Ù¸¥ ´ÜÀÏ ¸ñÀûÇÔ¼ö¸¦ Á¶ÇÕÇÏ¿© ¸¸µç ¸ñÀûÇÔ¼ö Áß DRMS¿Í NSÀÇ Á¶ÇÕ¿¡ ÀÇÇØ ¸¸µé¾îÁø ¸ñÀûÇÔ¼öÀÎ DNÀÌ ´Ù¸¥ ¸ñÀûÇÔ¼öº¸´Ù ÀúÀ¯·®¿¡ ºñÁßÀ» ´õ µÐ ¿¹Ãø°á°ú¸¦ ³ªÅ¸³ÂÀ¸¸ç, Àüü ÀÚ·á±â°£¿¡ ´ëÇØ¼ ¾çÈ£ÇÑ ¿¹Ãø°á°ú·Ð ³ªÅ¸³Â´Ù. |
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Two global optimization methods, the SCE-UA method and the Annealing-Simplex(A-S) method for calibrating a daily rainfall-runoff model, a Tank model, was compared with that of the Downhill Simplex method. In synthetic data study, 100% success rates for all objective functions were obtained from the A-S method, and the SCE-UA method was also consistently able to obtain good estimates. The Downhill Simplex method was converged to the true values only when the initial guess was close to the true values. In the historical data study, the A-S method and the SCE-UA method showed consistently good results regardless of objective function. An objective function was developed, which puts more weight on the low flows. |
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Ű¿öµå |
Àü¿ªÃÖÀûȱâ¹ý;SCE-UA¹ý;Annealing-Simplex¹ý;°¿ì-À¯Ãâ¸ðÇü;ÀÚµ¿º¸Á¤;¸ñÀûÇÔ¼ö; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.35, no.5, 2002³â, pp.541-552
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200211921445004)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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