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Çѱ¹¼öÀÚ¿øÇÐȸ / v.40, no.2, 2007³â, pp.159-170
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À¯¿ª ¹× ±â»ó»óŸ¦ °í·ÁÇÑ Clark ´ÜÀ§µµÀÇ ¸Å°³º¯¼ö Æò°¡: 1. ´ëÇ¥ È£¿ì»ç»óÀÇ ¼±Á¤ ¹× ºÐ¼®
( Evaluation of the Clark Unit Hydrograph Parameters Considering Basin and Meteorologic at Conditions : 1. Selection and Analysis of Representative Storm Events ) |
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º» ¿¬±¸¿¡¼´Â °üÃøÀÚ·á¿¡ ³ªÅ¸³ Clark ´ÜÀ§µµÀÇ ¸Å°³º¯¼ö¸¦ °ËÅäÇÏ°í ±× º¯µ¿¼ºÀ» Æò°¡ÇÏ¿´´Ù. ¿©±â¿¡´Â °¿ì-À¯Ãâ°úÁ¤¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â À¯¿ª ¹× ±â»ó Ư¼ºÀÎÀÚµéÀ» È®·ü¹ÐµµÇÔ¼ö¸¦ Àû¿ëÇÏ¿© Á¤·®ÈÇϰí, À̸¦ ¹ÙÅÁÀ¸·Î ÇÏ¿© °üÃø °¿ì-À¯Ãâ »ç»ó Áß Æò±ÕÀûÀÎ »ç»óÀ» ºÐ·ùÇϸç, ¸¶Áö¸·À¸·Î ¼±º°µÈ °¿ì-À¯Ãâ »ç»ó¿¡ ´ëÇØ Clark ´ÜÀ§µµÀÇ Æò±ÕÀûÀÎ ¸Å°³º¯¼ö¸¦ À¯µµÇÏ´Â °úÁ¤ÀÌ Æ÷ÇԵȴÙ. ÀÌ·¯ÇÑ °úÁ¤À» ÅëÇØ ¾òÀº °á°ú¸¦ Á¤¸®ÇÏ¸é ´ÙÀ½°ú °°´Ù. (1) À¯¿ªÀ» ´ëÇ¥ÇÏ´Â À¯ÃâÆ¯¼º(Áï, ÁýÁ߽ð£ ¹× Àú·ù»ó¼ö)ÀÇ °áÁ¤¿¡´Â °üÃø °¿ì-À¯Ãâ»ç»óÀÇ ¼ö°¡ ¾î´À Á¤µµ È®º¸µÈ´Ù°í ÇÏ´õ¶óµµ ¿©ÀüÈ÷ ³ôÀº ºÒÈ®½Ç¼ºÀ» ÇÇÇϱâ Èûµé´Ù. (2) ÁýÁ߽ð£ÀÇ °æ¿ì´Â ±× ºÐÆ÷°¡ »ó´çÈ÷ ¿Ö°îµÈ ÇüÅ¿©¼ ´Ü¼øÇÑ »ê¼úÆò±ÕÀº »ó´çÈ÷ ¿Ö°îµÈ ÃßÁ¤Ä¡¸¦ Á¦½ÃÇÒ °¡´É¼ºÀÌ ³ô´Ù. Áï, Á¤±ÔºÐÆ÷¿¡ ±Ù°ÅÇÑ Æò±Õ°ªÀÎ »ê¼úÆò±ÕÀº ´õ ÀÌ»ó ÁýÁ߽𣿡 ´ëÇÑ ´ëÇ¥°ªÀÇ ¿ªÇÒÀ» ÇÏÁö ¸øÇÑ´Ù. ¿ÀÈ÷·Á ÃÖºó°ªÀÇ °æ¿ì°¡ º¸´Ù ´ëÇ¥¼ºÀ» °®´Â °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. ¹Ý¸é¿¡ Àú·ù»ó¼öÀÇ °æ¿ì´Â °ÅÀÇ ´ëĪÀÎ ºÐÆ÷¸¦ Çϰí ÀÖÀ¸¹Ç·Î »ê¼úÆò±ÕÀÌ ¾î´À Á¤µµÀÇ ´ëÇ¥¼ºÀ» È®º¸ÇÑ´Ù°í ÆÇ´ÜÇÒ ¼ö ÀÖ´Ù. º» ¿¬±¸ÀÇ ´ë»óÀ¯¿ªÀÇ °æ¿ì ÁýÁ߽ð£Àº ´ë·« 7½Ã°£ Á¤µµ°¡, Àú·ù»ó¼ö´Â ´ë·« 22½Ã°£ Á¤µµ°¡ ÀûÀýÇÑ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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This study evaluated the parameters of Clark unit hydrograph (UH) estimated using the rainfall-runoff measurements and evaluated their variability. This also includes the quantification of basin and meteorological factors using probability density functions, selection of storm events with mean affecting factors, and derivation of average parameters of the Clark UH from storm events selected. Summarizing the results from this procedure are as follows. (1) It is not easy to avoid much uncertainty on the decision of runoff characteristics (that is, the concentration time and storage coefficient) even with some rainfall-runoff events are available. (2) As the distribution function of concentration time is very skewed, a simple arithmetic mean may lead a biased estimate. That is, the arithmetic mean based on the normal distribution can not be representative anymore. The mode may well be the representative in this case. On the other hand, the storage coefficient shows a symmetric distribution function, so the arithmetic mean may be used use for its representative. For the basin in this study, the concentration time in this study is estimated to be about 7 hours, and the storage coefficient about 22 hours. |
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Ű¿öµå |
Clark ´ÜÀ§µµ;ÁýÁ߽ð£;Àú·ù»ó¼ö;È®·ü¹ÐµµÇÔ¼ö;Clark unit hydrograph;concentration time;storage coefficient;probability density function; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.40, no.2, 2007³â, pp.159-170
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200710912630963)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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