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Çѱ¹¼öÀÚ¿øÇÐȸ / v.34, no.5, 2001³â, pp.473-486
À¯ÀüÀÚ ¾Ë°í¸®ÁòÀ» ÀÌ¿ëÇÑ WGR ´ÙÂ÷¿ø °­¿ì¸ðÇüÀÇ ¸Å°³º¯¼ö ÃßÁ¤
( Estimation of the WGR Multi-dimensional Precipitation Model Parameters using the Genetic Algorithm )
Á¤±¤½Ä;À¯Ã¶»ó;±èÁßÈÆ; °í·Á´ëÇб³ ȯ°æ°øÇаú;°í·Á´ëÇб³ ȯ°æ°øÇаú;°í·Á´ëÇб³ Åä¸ñ°øÇаú;
 
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WGR °­¿ì¸ðÇüÀº Áß±Ô¸ð Á¤µµÀÇ °­¿ì¸¦ Ç¥ÇöÇϱâ À§ÇØ °³¹ßµÈ °³³äÀûÀÎ ¸ðÇüÀ¸·Î ´ë±âÀÇ µ¿¿ªÇÐÀû Ư¼º°ú °­¿ìÀÇ Åë°èÇÐÀû Ư¼ºÀÌ ºñ±³Àû Àß ¹Ý¿µµÈ ¸ðÇüÀÌ´Ù(Waymire µî, 1984). ±×·¯³ª ÀÌ ¸ðÇüÀº ÃÖ´ë 18°³ÀÇ ¸Å°³º¯¼ö¸£ °¡Áö¸ç ¸ðÇüÀÇ ±¸Á¶°¡ °­ÇÑ ºñ¼±Çü¼ºÀ» °¡Áö°í ÀÖ¾î ¸Å°³º¯¼ö ÃßÁ¤ÀÌ ¸Å¿ì ¾î·Á¿î ¹®Á¦·Î ³²¾Æ ÀÖ´Ù. Áö±Ý±îÁö °¢°¢ ´Ù¸¥ Áö¿ªÀÇ °­¿ì¿¡ ´ëÇØ ºñ¼±Çü ÃÖÀûÈ­ ±â¹ý(non-linear programming; NLP)À» ÀÌ¿ëÇÏ¿© ¸Å°³º¯¼ö¸¦ ÃßÁ¤ÇÑ ¿¹°¡ ÀÖÀ¸³ª ±× °úÁ¤ ÀÚü°¡ ¸Å¿ì º¹ÀâÇÏ¿© ÀÌ ¸ðÇüÀ» ´Ù¸¥ ¸ñÀûÀ¸·Î ÀÌ¿ëÇϴµ¥ ¹®Á¦·Î ÁöÀûµÇ°í ÀÖ´Ù. º» ¿¬±¸¿¡¼­´Â À¯ÀüÀÚ ¾Ë°í¸®Áò(genetic algorithm; GA)À» ÀÌ¿ëÇÑ WGR ¸ðÇüÀÇ ¸Å°³º¯¼ö ÃßÁ¤¹ýÀ» Á¦½ÃÇÏ¿´À¸¸ç, À̸¦ ÇѰ­À¯¿ª¿¡ Àû¿ëÇÏ¿© NLP¿¡ ÀÇÇÑ °á°ú (Yoo¿Í Kwon, 2000)¿Í ºñ±³ÇÏ¿´´Ù. Àû¿ë °á°ú GA´Â NLP¿¡ ºñÇØ »ó´ëÀûÀ¸·Î ÀÛÀº SSE(sum of square error)¸¦ ³ªÅ¸³»¾ú°í °èÀýÀÇ º¯È­¿¡ º¸´Ù ÀϰüÀûÀÎ ¹ÝÀÀÀ» º¸ÀÓÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ÃßÁ¤µÈ ¸Å°³º¯¼ö ºÐ¼®°á°ú, ¿©¸§Ã¶ÀÇ ³ôÀº °­¿ì·®Àº °­¿ì ¼¼Æ÷ÀÇ °­µµº¸´Ù´Â °­¿ìÀü¼±ÀÇ µµ´ÞÀ²°ú ¹ÐÁ¢ÇÑ °ü°è°¡ ÀÖ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
The WGR model was developed to represent meso-scale precipitation. As a conceptual model, this model shows a good link between atmospheric dynamics and statistical description of meso-scale precipitation(Waymire et al., 1984). However, as it has maximum 18 parameters along with its non-linear structure, its parameter estimation has been remained a difficult problem. There have been several cases of its parameter estimation for different fields using non-linear programming techniques(NLP), which were also difficult tasks to hamper its wide applications. In this study, we estimated the WGR model parameters of the Han river basin using the genetic algorithm(GA) and compared them to the NLP results(Yoo and Kwon, 2000). As a result of the study, we can find that the sum of square error from the GA provide more consistent parameters to the seasonal variation of rainfall. Also, we can find that the higher rainfall amount during summer season is closely related with the arrival rate of rain bands, not the rain cell intensity.
 
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À¯ÀüÀÚ ¾Ë°í¸®Áò;ºñ¼±Çü ÃÖÀûÈ­;WGR ¸ðÇü;¸Å°³º¯¼ö ÃßÁ¤;Genetic Algorithm;Non Linear Programming;WGR Model;Parameter Estimation;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.34, no.5, 2001³â, pp.473-486
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200111920841052)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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