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Çѱ¹¼öÀÚ¿øÇÐȸ / v.36, no.4, 2003³â, pp.533-545
GIUH Ư¼º¼Óµµ¿¡ ´ëÇÑ °­¿ìÀÇ ¿µÇ⠺м®
( Analysis of Rainfall Effect on the GIUH Characteristic Velocity )
±è±â¿í;³ëÁ¤È¯;Àü¿ë¿î;À¯Ã¶»ó; ¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;¼º±Õ°ü´ëÇб³ Åä¸ñȯ°æ°øÇаú;°í·Á´ëÇб³ Åä¸ñȯ°æ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â ¼³¸¶Ãµ À¯¿ª¿¡¼­ °üÃøµÈ ¿©·¯ °­¿ì-À¯Ãâ»ç»óÀ» ºÐ¼®ÇÏ¿©, °¢ »ç»ó¸¶´Ù GIUHÀÇ Æ¯¼º¼Óµµ¸¦ ÃßÁ¤Çϰí, À̸¦ ºÐ¼®ÇÏ¿© ±× º¯µ¿Æ¯¼ºÀ» »ìÆìº¸¾Ò´Ù. ƯÈ÷, º» ¿¬±¸¿¡¼­´Â °­¿ìÀÇ Æ¯¼º¿¡ µû¸¥ Ư¼º¼ÓµµÀÇ º¯È­¿¡ ÃÊÁ¡À» ¸ÂÃß¾î ºÐ¼®ÇÏ¿´´Ù. ¼³¸¶Ãµ À¯¿ªÀÇ ¼ø°£´ÜÀ§µµ´Â HEC-1¸ðÇüÀ» ÀÌ¿ëÇÏ¿© À¯µµÇÏ¿´À¸¸ç, ÀÌ·¸°Ô À¯µµµÈ ¼ø°£ ´ÜÀ§µµÀÇ Ã·µÎÀ¯·®°ú ÷µÎ½Ã°£À» GIUHÀÇ ±×°Í°ú ºñ±³ÇÔÀ¸·Î¼­ Ư¼º¼Óµµ°¡ °è»êµÉ ¼ö ÀÖµµ·Ï ÇÏ¿´´Ù. °¢ °­¿ì»ç»óº° Ư¼º¼Óµµ´Â GcIUH ¹× °­¿ìÀÇ ¿©·¯ Ư¼º°ú ºñ±³ºÐ¼®ÇÏ¿´´Ù. ÀÌ °úÁ¤À» ÅëÇÏ¿© ¾òÀº °á°ú¸¦ Á¤¸®ÇÏ¸é ´ÙÀ½°ú °°´Ù. (1) GIUHÀÇ Æ¯¼º¼Óµµ´Â GcIUHÀÇ ±×°Íº¸´Ù º¯µ¿Á¤µµ°¡ Å©°í ¾Æ¿ï·¯ ¾à°£ Å©°Ô »êÁ¤µÇ¾úÀ¸³ª ±× °æÇâÀº À¯»çÇÑ °ÍÀ¸·Î ÆÄ¾ÇµÇ¾ú´Ù. (2) ÃÑÀ¯È¿¿ì·®(¶Ç´Â, Æò±ÕÀ¯È¿¿ì·®)ÀÌ GIUHÀÇ Æ¯¼º¼Óµµ¸¦ »ó´ëÀûÀ¸·Î Àß ¼³¸íÇÔÀ» ÆÄ¾ÇÇÒ ¼ö ÀÖ¾ú´Ù. À̴ ȸ±ÍºÐ¼®ÀÇ °á°ú·Î ³ªÅ¸³ª´Âµ¥ ±× °áÁ¤°è¼ö°¡ 0.6 ÀüÈÄ·Î Å©°Ô ³ªÅ¸³µ´Ù. (3) ¹Ý´ë·Î °­¿ìÀÇ Áö¼Ó ±â°£À̳ª ÃÖ´ë°­¿ì°­µµ´Â GIUHÀÇ Æ¯¼º¼Óµµ¸¦ °áÁ¤Çϴµ¥ Å« ¿µÇâÀ» ³¢Ä¡Áö ¸øÇϰí ÀÖÀ½À» ÆÄ¾ÇÇÏ¿´´Ù. ȸ±ÍºÐ¼® °á°ú °áÁ¤°è¼ö´Â ÃÖ´ë 0.3À» ³ÑÁö ¾Ê¾Ò´Ù. (4) º» ¿¬±¸¿¡¼­ ºÐ¼®ÇÑ °­¿ì»ç»óµéÀÇ °æ¿ì GIUHÀÇ Æ¯¼º¼ÓµµÀÇ ºÐÆ÷°¡ Æò±Õ 0.402m/s Ç¥ÁØÆíÂ÷0.173 m/sÀÎ Á¤±ÔºÐÆ÷¸¦ µû¸£´Â °ÍÀ¸·Î ³ªÅ¸³µÀ¸¸ç, ÁÖ·Î 0.4¡­0.5 m/s »çÀÌ¿¡ ´ëºÎºÐÀÇ °ªÀÌ À§Ä¡ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù. ±× º¯µ¿°è¼ö´Â 0.43Á¤µµ·Î À¯ÃâÀÇ °æ¿ì(´ë·« 1.0 Á¤µµ)¿¡ ºñÇØ ÈξÀ ÀûÀº º¯µ¿Æ¯¼ºÀ» ³ªÅ¸³¿À» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
This study analyzed several storm events observed in the Seolma-chun basin to derive the characteristic velocity of GIUH (Geomophological Instantaneous Unit Hydrograph) as well as its variability. Especially, this study focused on the variation of characteristic velocity due to the change of rainfall characteristics. The IUH of the Seolma-chun basin was derived using the HEC-1, whose peak discharge and time were then compared with those of the GIUH to derive the characteristic velocities. The characteristics velocities were analyzed by comparing with the GcIUH (Geomorphoclimatic IUH) as well as the characteristics of rainfall. Results are summarized as follows. (1) The characteristic velocity of GIUH was estimated higher with higher variability than the GcIUH, but their trends were found similar (2) Total amount of effective rainfall (or, mean effective rainfall) well explains the characteristic velocity of GIUH. This could be assured by the regression analysis, whose coefficient of determination was estimated about 0.6. (3) The duration and the maximum intensity of rainfall were found not to affect significantly on the characteristic velocity of GIUH. The coefficients of determination were estimated less than 0.3 for all cases considered. (4) For the rainfall events used in this study, the characteristic velocities of GIUH were found to follow the Gaussian distribution with its mean and the standard deviation 0.402 m/s and 0.173 m/s, respectively. Most of the values are within the range of 0.4¡­0.5 m/s, and its coefficient of variation was estimated to be 0.43, much less than that of the runoff itself (about 1.0).
 
Ű¿öµå
Ư¼º¼Óµµ;¼³¸¶Ãµ À¯¿ª;IUH;GIUH;Pollutant Load;Weighted Average Concentration;Rainfall Effect;Yongdam Reservoir;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.36, no.4, 2003³â, pp.533-545
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200311921879058)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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