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Çѱ¹¼öÀÚ¿øÇÐȸ / v.37, no.5, 2004³â, pp.407-424
GIS¿Í GCUH¸¦ ÀÌ¿ëÇÑ µ¹¹ßÈ«¼ö ±âÁؿ췮 »êÁ¤ÀÇ Å¸´ç¼º °ËÅä ¿¬±¸
( The Study of the Fitness on Calculation of the Flood Warning Trigger Rainfall Using GIS and GCUH )
½ÅÇö¼®;±èÈ«ÅÂ;¹Ú¹«Á¾; ºÎ»ê´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;ºÎ»ê´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇÐ;ÇѼ­´ëÇб³ °ø°ú´ëÇÐ Åä¸ñ°øÇаú;
 
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º» ¿¬±¸´Â ÁöÇü ±âÈÄÇÐÀû ´ÜÀ§À¯·®µµ(Geomorphoclimatic Unit Hydrograph, GCUH)°¡ »ê¾ÇÁö¿ªÀÇ À¯Ãâ·®°ú µ¹¹ßÈ«¼ö ±âÁؿ췮À» »êÁ¤Çϴµ¥ ÀûÀýÇÑÁö¸¦ °ËÅäÇÑ °ÍÀ¸·Î, ¿ì¼± »ê¾ÇÁö¿ªÀÇ À¯Ãâ·®À» »êÁ¤Çϴµ¥ ÀûÀýÇÑ ¹æ¹üÀÎÁö¸¦ ´öõ°­ À¯¿ª¿¡ ´ëÇØ È®·ü°­¿ì·®À¸·Î ÁöÇü±âÈÄÇÐÀû ´ÜÀ§À¯·®µµÀÇ Ã·µÎÀ¯·®°ú ±âÁ¸ º¸°í¼­ÀÇ Âø·ü È«¼ö·® ÀڷḦ ºñ±³ÇÏ´Â ¹æ¹ý°ú ½ÇÃø È£¿ì»ç»óÀ» HEC-HMS(Hydrologic Engineering Center-Hydrologic Modeling System) ¸ðÇü°ú ÁöÇü±âÈÄÇÐÀû ´ÜÀ§À¯·®µµ¿¡¼­ »êÁ¤µÈ ÷µÎ À¯·®À» żöÁöÁ¡ÀÇ ½ÇÃøÀÚ·á¿Í ºñ±³ÇÔÀ¸·Î½á ÁöÇü±âÈÄÇÐÀû ´ÜÀ§À¯·®µµÀÇ Å¸´ç¼ºÀ» °ËÁõÇÏ·ÁÇß°í ÁöÇü±âÈÄÇÐÀû ´ÜÀ§À¯·®µµ¿Í NRCS(Natural Resources Conservation Service) ¹æ¹ýÀ» ÀÌ¿ëÇÏ¿© µ¹¹ßÈ«¼ö ±âÁؿ췮À» »êÁ¤ÇÔÀ¸·Î½á »ê¾ÇÁö¿ªÀÇ µ¹¹ßÈ«¼ö ±âÁؿ췮 »êÁ¤ ¹æ¹ýÀ» Á¦½ÃÇß´Ù. ´öõ°­ À¯¿ª¿¡ ´ëÇØ È®·ü°­¿ì·®À¸·Î ÷µÎ À¯·®À» ºñ±³ÇÑ °æ¿ì Ç¥ 11°ú °°ÀÌ ´ëü·Î 30³â ºóµµ¸¦ Á¦¿ÜÇÏ°ï ºñÀ²ÀÌ 1.1À» ÃʰúÇÏÁö ¾Ê¾Ò°í, ½ÇÃø È£¿ì»ç»óÀ¸·Î ÷µÎÀ¯·®À» ºñ±³ÇÑ °æ¿ì Ç¥ 12¿Í °°ÀÌ ÁöÇü±âÈÄÇÐÀû ´ÜÀ§À¯·®µµ °á°ú°¡ HEC-HMS ¸ðÇüº¸´Ù ¸ðµÎ Å©°Ô ³ªÅ¸³µ°í żö ¼öÀ§Ç¥ÀÇ ½ÇÃøÄ¡¿Í ´ëü·Î À¯»çÇÏ°Ô ³ªÅ¸³µ´Ù. µû¶ó¼­, º» ¿¬±¸¿¡¼­ ÁöÇü±âÈÄÇÐÀû ´ÜÀ§À¯·®µµ¸¦ ÀÌ¿ëÇÑ »ê¾ÇÁö¿ªÀÇ À¯Ãâ·® »êÁ¤ÀÌ Å¸´çÇÔÀ» È®ÀÎÇß°í À̸¦ ÀÌ¿ëÇØ ´öõ°­ À¯¿ªÀÇ µ¹¹ßÈ«¼ö ±âÁؿ췮À» »êÁ¤ÇÑ °á°ú ÇѰèÀ¯Ãâ·®ÀÌ 95.59 $m^3$/secÀ϶§, ÃÖÃÊ 10ºÐ µ¿¾È¿¡ 12.96 mm°¡ ¹ß»ýÇϸé À§ÇèÇÑ °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
Using geomorphoclimatic unit hydrograph(GCUH), we estimated the fitness to calculate the mountainous area discharge and flash flood trigger rainfall(FFTR). First, we compared the GCUH peak discharge with the existing report using the design storm at the Dukcheon basin. Second, we compared the HEC-HMS(Hydrologic Engineering Center-Hydrologic Modeling System) model and GCUH with the observed discharge using the real rainfall events at the Taesu stage gage. Third, GCUH and NRCS(Natural Resources Conservation Service) were used for calculating FFTR and proper calculation method was shown. At the Dukcheon basin, the comparison result of using design storm was shown in Table 11, and it was not in excess of 1.1, except for the 30 year return period. In case of real rainfall events, the result was shown in Table 12, and GCUH discharges were all larger than the HEC-HMS model discharges, and they were very similar to the observed data at the Taesu stage gage. In this study, we found that GCUH was a very proper method in the calculation of mountainous discharge. At the Dukcheon basin, FFTR was 12.96 mm in the first 10 minutes when the threshold discharge was 95.59 $m^3$/sec
 
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ÁöÇü±âÈÄÇÐÀû ´ÜÀ§À¯·®µµ;÷µÎ À¯·®;µ¹¹ßÈ«¼ö ±âÁؿ췮;ÇѰèÀ¯Ãâ·®;Geomorphoclimatic Unit Hydrograph;Pick Discharge;Flash Flood Trigger Rainfall;Threshold Discharge;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.37, no.5, 2004³â, pp.407-424
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922339509)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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