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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.11, 2011³â, pp.875-887
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( Development and Evaluation of Computational Method for Korean Threshold Runoff ) |
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º» ¿¬±¸¿¡¼´Â ¿ì¸®³ª¶ó¿¡ ÀûÇÕÇÑ ÇѰèÀ¯Ãâ·® »êÁ¤±â¹ýÀ» Á¦¾ÈÇϰí À̸¦ Æò°¡ÇϰíÀÚ ÇÑ´Ù. ´ë»óÀ¯¿ªÀº ÇѰÀ¯¿ªÀ̸ç, À¯¿ªÀÇ Çϵµ±¸°£À» »êÁö¼ÒÇÏõ ÀÚ¿¬Çϵµ, ÀΰøÇϵµ ±×¸®°í º»·ùÇϵµÀÇ 3±¸°£À¸·Î ±¸ºÐÇÏ¿´´Ù. »êÁö¼ÒÇÏõÀÇ °æ¿ì »êÁö°è°îÀÇ ¾ß¿µ°´ ¹× µî»ê°´µéÀÇ ÇÇÇØ¸¦ ¹æÁöÇϱâ À§ÇØ 0.5 m ¼öÀ§»ó½ÂÀ» ±âÁØÀ¸·Î ÇѰèÀ¯Ãâ·®À» »êÁ¤ÇÏ¿´´Ù. »êÁö¼ÒÇÏõ ÀÚ¿¬ÇϵµÀÇ ÇѰèÀ¯Ãâ·®Àº À¯¿ª ¹× Çϵµ ¸Å°³º¯¼ö °£ÀÇ Áö¿ªÀû ȸ±ÍºÐ¼®À» ÅëÇØ ¼ÒÀ¯¿ªº° ÇѰèÀ¯Ãâ·®À» °è»êÇÏ¿´´Ù. »êÁö¼ÒÇÏõ ÀΰøÇϵµÀÇ °æ¿ì¿¡´Â À¯¿ª ¹× ÇϵµÆ¯¼ºÀÎÀÚµéÀÇ ÁöÁ¡Á¤º¸¸¦ÀÌ¿ëÇÏ¿© ÁöÁ¡º° ÇѰèÀ¯Ãâ·®À» »êÁ¤ÇÏ¿´´Ù. ¹Ý¸é ÇÏõ º»·ù±¸°£¿¡¼´Â °í¼öºÎÁö¸¦ ÀÌ¿ëÇÏ´Â À̿밴µéÀÇ ÀθíÇÇÇØ¸¦ ¹æÁöÇϰíÀÚ ÇÏõº»·ù±¸°£ÀÇ °æ°èÈ«¼ö·®À» ±âÁØÀ¸·Î ÁöÁ¡º° ÇѰèÀ¯Ãâ·®À» »êÁ¤ÇÏ¿´´Ù. »êÁ¤µÈ ÇѰèÀ¯Ãâ·®ÀÇ °ËÁõÀ» À§ÇØ 3°³ÀÇ µ¹¹ßÈ«¼ö»ç·Ê¸¦ ¼öÁýÇÏ¿´À¸¸ç, SCS À¯È¿¿ì·® ¹æ¹ýÀ»ÀÌ¿ëÇÏ¿´´Ù. Áö¼Ó½Ã°£ 1, 3, 6½Ã°£¿¡ ÇØ´çÇÏ´Â À¯È¿¿ì·®ÀÌ ÇѰèÀ¯Ãâ·®º¸´Ù »óȸÇÏ´Â °ªÀ» Áö´Ñ °ÍÀ¸·Î ³ªÅ¸³ª º»¿¬±¸¿¡¼ Á¦½ÃÇÑ ÇѰèÀ¯Ãâ·® »êÁ¤¹æ¹ýÀÌ ÀûÀýÇÑ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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The objective of this study is to develop and evaluate a Korean threshold runoff computation method. The selected study area is the Han-River basin and the stream channels in the study area are divided into 3 parts; natural channel and artificial manmade channel for small mountainous catchments, and main channel for master stream. The threshold runoff criteria for small streams is decided to 0.5 m water level increase from the channel bottom, which is the level that mountain climbers and campers successfully escape from natural flood damage. Threshold runoff values in natural channel of small mountainous area are computed by the results from the regional regression analysis between parameters of basin and stream channel, while those in artificial channel of small mountainous area are obtained from the data of basin and channel characteristics parameter. On the other hand, the threshold runoff values for master channel are used the warning flood level that is useful information for escaping guideline for riverside users. For verification of the threshold runoff computation method proposed in this study, three flash flood cases are selected and compared with observed values, which is obtained from SCS effective rainfall computation. The 1, 3, 6-hour effective rainfall values are greater than the corresponding threshold runoff values represents that the proposed computation results are reasonable. |
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Ű¿öµå |
ÇѰèÀ¯Ãâ·®;µ¹¹ßÈ«¼ö;µ¹¹ßÈ«¼ö¿¹°æº¸½Ã½ºÅÛ;threshold runoff;flash flood;flash flood guidance; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.11, 2011³â, pp.875-887
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201101152705483)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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