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Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.2, 2008³â, pp.185-196
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À¯Ãâ¼ö¹®°î¼±°ú µ¹¹ßÈ«¼öÁö¼ö¸¦ ÀÌ¿ëÇÑ µ¹¹ßÈ«¼ö½Éµµ »êÁ¤
( Estimation of the Flash Flood Severity using Runoff hydrograph and Flash flood index ) |
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Áö±Ý±îÁö µ¹¹ßÈ«¼ö´Â ÁÖ·Î °¿ìÀÇ ½Ã°ø°£ÀûÀΠƯ¼ºµéÀ» °í·ÁÇÑ ±âÈÄÇÐÀû Ãø¸é¿¡¼ °ü½ÉÀ» °¡Áö°í ¿¬±¸°¡ ÁøÇàµÇ¾î ¿ÔÀ» »Ó À¯ÃâÀÇ ½Ã°¢¿¡¼ µ¹¹ßÈ«¼ö¸¦ Æò°¡Çϱâ À§ÇÑ ³ë·ÂÀº ¸Å¿ì ¹ÌÈíÇÏ¿´´Ù°í ÇÒ ¼ö ÀÖ´Ù. º» ¿¬±¸ÀÇ ¸ñÀûÀº Bhaskar µî(2000)ÀÇ ¿¬±¸¸¦ ¿ì¸®³ª¶ó¿¡ Àû¿ëÇÏ¿© À¯Ãâ¼ö¹®°î¼±¿¡ ÀÇÇØ µ¹¹ßÈ«¼ö¸¦ ¼³¸íÇϰí, ´Ù¸¥ È«¼ö»ç»ó°ú µ¹¹ß È«¼ö »ç»óÀ» ±¸º°ÇϰíÀÚ Çϴµ¥ ÀÖ´Ù. Áï, À¯Ãâ¼ö¹®°î¼±ÀÇ Æ¯¼ºÀ» ÀÌ¿ëÇØ È«¼ö»ç»ó¿¡ ´ëÇÑ µ¹¹ßÈ«¼öÁö¼ö(flash flood index)¸¦ »êÁ¤ÇÔÀ¸·Î½á µ¹¹ßÈ«¼öÀÇ ½É°¢¼º Á¤µµ¸¦ Á¤·®ÈÇϰíÀÚ ÇÏ¿´´Ù. À̸¦ À§ÇØ º» ³í¹®¿¡¼´Â ÇѰÀ¯¿ªÀÇ °ú°Å 101°³ÀÇ È«¼ö»ç»ó¿¡ ´ëÇØ µ¹¹ßÈ«¼öÀÇ »ó´ë½Éµµ(relative severity)¸¦ ÆÄ¾ÇÇϱâ À§ÇÏ¿© µ¹¹ßÈ«¼öÁö¼ö¸¦ »êÁ¤ÇÏ¿´À¸¸ç ¶ÇÇÑ, 2006³â 7¿ùÀÇ ÁýÁßÈ£¿ì¿¡ ÀÇÇØ ¹ß»ýÇÑ È«¼ö»ç»óÀÇ µ¹¹ßÈ«¼ö ½Éµµ¸¦ ½Ã°ø°£ÀûÀ¸·Î Á¤·®ÈÇÏ¿´´Ù. ºÐ¼® °á°ú, ÇѰÀ¯¿ªÀÇ ´Ù¸¥ Áö¿ª¿¡ ºñÇØ °¿øµµ Áö¿ªÀÇ È«¼ö À¯Ãâ¼ö¹®°î¼±µéÀÌ µ¹¹ßÈ«¼ö ½Éµµ¸¦ Å©°Ô ³ªÅ¸³»¾úÀ¸¸ç Áß¶ûõ µî°ú °°Àº µµ½ÃÀ¯¿ª¿¡¼µµ µ¹¹ß½Éµµ°¡ Å©°Ô ³ªÅ¸³²À» È®ÀÎ ÇÒ ¼ö ÀÖ¾ú´Ù. 2006³â 7¿ù ÁýÁßÈ£¿ì¿¡ ÀÇÇÑ ÇѰÀ¯¿ªÀÇ µ¹¹ßÈ«¼öÁö¼ö¸¦ 7¿ù Àü¹Ý±â, Á߹ݱ⠱׸®°í ÇϹݱâ·Î ³ª´©¾î ½Ã°ø°£Àû °ø°£ºÐÆ÷¸¦ ºÐ¼®ÇÑ °á°ú, 7¿ù Àü¹Ý±âÀÇ °æ¿ì ¼¿ï ÁÖº¯Áö¿ªÀÇ µ¹¹ß½Éµµ°¡ Å©°Ô ³ªÅ¸³µÀ¸¸ç 7¿ù Á߹ݱâÀÇ °æ¿ì °¿øµµ Áö¿ªÀÇ µ¹¹ßÈ«¼ö ½Éµµ°¡ Å©°Ô ³ªÅ¸³µ´Ù. |
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The flash flood has been studied in the climatological aspect which considers temporal and spatial characteristics of rainfall. However, we have not interested in runoff hydrograph for flash flood study. Therefore, our objectives of this study are to apply a work of Bhaskar et. al (2000) which studied runoff hydrograph to represent the flash flood to Korea and also to distinguish flash flood event from general flood event. That is, we quantified the severity of flash flood by estimation of flash flood index using runoff hydrograph. This study estimated the flash flood index for investigating the relative severity of flash flood in Han river basin with 101 flood events. Also we quantified the flash flood severity for flood event by heavy rainfall occurred in July of 2006. As a result, Kangwon-do province showed more severe flash flood than other areas in Han river basin and urban area such as Jungrang cheon stream also showed severe flash flood. We analyzed a flash flood of July of 2006 by dividing July into 1st to 3rd terms. From the analysis we knew that the 1st term of July showed the severe flash flood was occurred in Seoul area and the 2nd term showed it was occurred in Kangwon-do province. |
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µ¹¹ßÈ«¼öÁö¼ö;À¯Ãâ¼ö¹®°î¼±;»ó½Â °î¼± ±â¿ï±â;È«¼ö·® ºñ;È«¼ö ¹ÝÀÀ½Ã°£;Flash flood index;runoff hydrograph;rising curve gradient;flood magnitude;flood response time; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.2, 2008³â, pp.185-196
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200807341722589)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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