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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.4, 2011³â, pp.327-338
È£¿ì»ç»óÀÇ °ø°£±Ô¸ð Á¤·®È­¸¦ À§ÇÑ µî°¡Å¸¿øÀÇ Àû¿ë
( Application of Equivalent Ellipses for the Qualification of the Spatial Scale of Rainfall Event )
±èÇÏ¿µ;¹Úâ¿­;À¯Ã¶»ó; °í·Á´ëÇб³ °ø°ú´ëÇÐ °ÇÃà»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ø°ú´ëÇÐ °ÇÃà»çȸȯ°æ°øÇаú;°í·Á´ëÇб³ °ø°ú´ëÇÐ °ÇÃà»çȸȯ°æ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â µî°¡Å¸¿øÀ» ÀÌ¿ëÇÏ¿© È£¿ì»ç»óÀÇ °ø°£ºÐÆ÷¸¦ Á¤·®È­ ÇÏ´Â ¹®Á¦¸¦ »ìÆìº¸¾Ò´Ù. ÁÖ¾îÁø È£¿ì»ç»óÀÇ µî°¡ Ÿ¿øÀ» ¸Å ½Ã°£º° ÇѰ谭¿ì°­µµ¿¡ µû¶ó ÃßÁ¤Çϰí, ÀÌ µî°¡Å¸¿øÀÇ °³¼ö¿Í ±Ô¸ðÀÇ º¯È­¸¦ »ìÆìº¸¾Ò´Ù. ¶ÇÇÑ ÇѰ谭¿ì°­µµ º°·Î Æò±Õ µî°¡Å¸¿øÀ» °áÁ¤Çϰí, ÀÌ Æò±Õ µî°¡Å¸¿øÀÌ ÁÖ¾îÁø È£¿ì»ç»óÀ» ´ëÇ¥ÇÒ ¼ö ÀÖ´ÂÁö ÆÇ´ÜÇϱâ À§ÇØ Æò±Õ µî°¡Å¸¿øÀÇ ÀåÃà°ú ´ÜÃà, ±×¸®°í ȸÀü°¢¿¡ ´ëÇÑ ½Å·Ú±¸°£À» »êÁ¤ÇÏ¿© Æò°¡ÇÏ¿´´Ù. ¿¬±¸°á°ú, ÇѰ谭¿ì°­µµ°¡ Ä¿Áü¿¡ µû¶ó µî°¡Å¸¿øÀÇ °³¼ö¿Í Å©±â´Â °¨¼ÒÇÏ°í µî°¡Å¸¿øÀÌ ³ªÅ¸³ª´Â ½Ã°£µµ ´Ê¾îÁö´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù. ¶ÇÇÑ µî°¡Å¸¿øÀÇ ÀåÃà°ú ´ÜÃàÀÇ ºñ´Â 2 : 1ÀÌ ÀûÀýÇÑ °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, ÇѰ谭¿ì°­µµº°·Î ÃßÁ¤µÈ µî°¡Å¸¿øÀÇ Æò±Õ ȸÀü°¢Àº ¸ðµç µî°¡Å¸¿øÀÇÆò±Õ ȸÀü°¢°ú Åë°èÇÐÀûÀ¸·Î À¯»çÇÔÀ» È®ÀÎÇÏ¿´´Ù.
This study examined the quantification problem of a storm shape using the concept of equivalent ellipses. The equivalent ellipses of a storm event were estimated at every time step with respect to the several thresholds of rainfall intensity, which was also examined in terms of their size and number. In addition, the average equivalent ellipse was decided, and the confidence intervals of major axis, minor axis, and rotational angle were calculated to evaluate if the average equivalent ellipse could be the representative one. As results, the following results could be derived. First of all, the number of equivalent ellipses and the size of equivalent ellipses increase as the threshold increase. Secondly, the appropriate ratio of major and minor axises of equivalent ellipse is 2 : 1. Finally, the average rotational angle estimated with respect to several threshold rainfall intensities were all found not to be statistically different from that of all representative rotational angles.
 
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È£¿ì;°ø°£ºÐÆ÷;µî°¡Å¸¿ø;ȸÀü°¢;ÇѰ谭¿ì°­µµ;storm;spatial distribution;equivalent ellipse;rotational angle;threshold of rainfall intensity;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.4, 2011³â, pp.327-338
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201115037884890)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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