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Çѱ¹¼öÀÚ¿øÇÐȸ / v.43, no.7, 2010³â, pp.645-655
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BH º£ÀÌÁö¾È ºÐ¼®À» ÅëÇÑ ¼¿ïÁöÁ¡ °¿ìÀÚ·áÀÇ È®·üÀû º¯È½ÃÁ¡ ÃßÁ¤
( A Probabilistic Estimation of Changing Points of Seoul Rainfall Using BH Bayesian Analysis ) |
| Ȳ¼®È¯;±èÁßÈÆ;À¯Ã¶»ó;Á¤¼º¿ø; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿ø¿¬±¸½Ç;°í·Á´ëÇб³ °ø°ú´ëÇÐ °ÇÃà.»çȸȯ°æ°øÇкÎ;°í·Á´ëÇб³ °ø°ú´ëÇÐ °ÇÃà.»çȸȯ°æ°øÇкÎ;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼öÀÚ¿ø¿¬±¸½Ç;
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| º» ³í¹®¿¡¼´Â °¢°¢ÀÇ ½ÃÁ¡¿¡¼ÀÇ º¯ÈÈ®·üÀ» »êÁ¤ÇÏ¿© º¯È½ÃÁ¡À» ÃßÁ¤ÇÏ´Â Barry and Hartigan (BH)ÀÇ º£ÀÌÁö¾È º¯È½ÃÁ¡ ÃßÁ¤¹æ¹ý(Bayesian changing points estimation method)À» ÀÌ¿ëÇÏ¿© Ãø¿ì±â °üÃøÀÚ·á°è¿(CWK)°ú ±Ù´ë¿ì·®°è °üÃøÀÚ·á°è¿(MRG)°£ÀÇ º¯È¿¡ ´ëÇÑ »ó´ëÈ®·üÀû ÀýÁ¡ÀÇ ¹ß»ý¿©ºÎ¸¦ ºÐ¼®ÇÏ¿´´Ù. ¾î¶°ÇÑ ÀÚ¿¬ Çö»óµµ ¿ÏÀüÈ÷ µ¿ÀÏÇÏ°Ô ÀçÇöµÇÁö ¾Ê±â¶§¹®¿¡ ½Ã°£ÀûÀÎ ¼ø¼¸¦ °í·ÁÇÏÁö¸øÇÏ´Â Åë°èÀû ¹æ¹ýÀº ±¸Ã¼ÀûÀι߻ý½Ã°£À» ¿¹ÃøÇÏ±â ¾î·Æ´Ù´Â Á¡¿¡¼ ÀÚ·áÀÇ º¯È·® ÆÄ¾ÇÀº °¡´ÉÇϳª º¯È½ÃÁ¡À» ¸íÈ®È÷ ÃßÁ¤Çϴµ¥ ÇѰ谡 ÀÖ´Ù. ÀÌ·¯ÇÑ ¹è°æ¿¡¼, º» ³í¹®¿¡¼´Â °¢ ½ÃÁ¡¿¡¼ÀÇ º¯ÈÈ®·üÀ» »êÁ¤ÇÏ¿© º¯È½ÃÁ¡À» ÃßÁ¤ÇÏ´Â BH º£ÀÌÁö¾È ¹æ¹ýÀ» Àû¿ëÇÏ¿© CWK¿Í MRGÀÇ °¢ °¿ìƯ¼ºº°·Î »ó´ëÈ®·üÀûÀÎ º¯È½ÃÁ¡ ºÐ¼®À» ÅëÇÏ¿© CWK¿Í MRG °£ÀÇ µ¿Áú¼º ºÐ¼®À» ½Ç½ÃÇÏ¿´´Ù. ºÐ¼® °á°ú, CWKÀÇ Á¤¼ºÀûÀÎ(º»ÁúÀûÀÎ) Åë°èÀû Ư¼ºÀº MRG¿Í Å« Â÷À̰¡ ¾ø´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ´Ù¸¸, °üÃøÁ¤¹ÐµµÀÇ ÇѰè·Î ÀÎÇÑ Á¤·®ÀûÀÎ Â÷À̰¡ Á¸ÀçÇÏ´Â °ÍÀ¸·Î ºÐ¼®µÇ¾ú´Ù. |
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| In this study, occurrences of relative probabilistic changing points between Chukwooki rainfall data (CWK) and modern rain gage data (MRG) were analyzed using Barry and Hartigan (BH) Bayesian changing points estimation method which estimated the changing points by calculation of change probabilities at each point. Since any natural phenomenon cannot be simulated identically and perfectly, a statistical method which can not consider the sequential order has its limitation on prediction of a specific time of occurrence. In this respect, Homogeneity analysis between CWK and MRG was performed through the occurrence investigation of relative probabilistic changing points for four rainfall characteristics of data sets using BH bayesian model which estimate the change point by calculating the relative probabilities in each data points. The results show that statistical characteristics of CWK are not different significantly from MRG, even though considered that there may be little quantitative difference CWK and MRG caused from limitation of measurement accuracy of CWK. |
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| Ű¿öµå |
| º£ÀÌÁö¾È;º¯È½ÃÁ¡;°¿ì·®;Ãø¿ì±â;bayesian;changing point;rainfall;chukwooki; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.43, no.7, 2010³â, pp.645-655
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201022262412331)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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