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Çѱ¹¼öÀÚ¿øÇÐȸ / v.37, no.9, 2004³â, pp.695-706
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Áß±Ô¸ð ÇÏõÀ¯¿ª¿¡¼ ¼³°è°¿ìÀÇ ÀÓ°èÁö¼Ó±â°£¿¡ °üÇÑ ¿¬±¸
( A Study on the Critical Duration of Design Rainfall in Midsize Catchment ) |
| ¹ÚÁ¾¿µ;½Å⵿;ÀÌÁ¤½Ä; ±Ý¿À°ø°ú´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;±Ý¿À°ø°ú´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;±Ý¿À°ø°ú´ëÇб³ Åä¸ñȯ°æ°øÇкÎ;
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| º» ¿¬±¸´Â ½ÇÃøÀÚ·á°¡ È®º¸µÈ Áß±Ô¸ð ÇÏõÀ¯¿ª¿¡¼ ÃÖ´ë ÷µÎÀ¯·®À» ¹ß»ý½ÃŰ´Â ¼³°è°¿ìÀÇ ½Ã°£ºÐÆ÷¸ðÇüÀ» ¹àÇô³»°í, °áÁ¤µÈ ½Ã°£ºÐÆ÷¸ðÇüÀ» ¹ÙÅÁÀ¸·Î ÇÏ¿© À¯¿ªÆ¯¼º°ú ÀÓ°èÁö¼Ó±â°£ÀÇ °ü°è¸¦ ±Ô¸íÇÏ´Â °ÍÀÌ´Ù. 50-5,000$ extrm{km}^2$ÀÇ 44°³ À¯¿ªÀ» ÅëÇÏ¿© ¼ö¹®ºÐ¼®À» ½Ç½ÃÇÏ¿´À¸¸ç, SCS À¯È¿¿ì·® »êÁ¤¹æ¹ýÀ¸·Î °áÁ¤µÈ À¯È¿¿ì·®À» »ç¿ëÇÏ¿© ÃÖ´ë ÷µÎÀ¯·®À» ¹ß»ý½ÃŰ´Â ½Ã°£ºÐÆ÷¸ðÇüÀº HuffÀÇ 4ºÐÀ§ ½Ã°£ºÐÆ÷¸ðÇüÀ¸·Î ³ªÅ¸³µ´Ù. À¯¿ª¸éÀû 50-600$ extrm{km}^2$ÀÎ À¯¿ª¿¡¼´Â 24½Ã°£ °¿ìÁö¼Ó±â°£ÀÇ Ã·µÎÀ¯·®°ú ÀÓ°èÁö¼Ó±â°£ÀÇ Ã·µÎÀ¯·®Àº À¯»çÇÑ °ªÀ» º¸À̸ç, À¯¿ª¸éÀû 600-5,000$ extrm{km}^2$ÀÎ À¯¿ª¿¡¼´Â 48½Ã°£ °¿ìÁö¼Ó±â°£ÀÇ Ã·µÎÀ¯·®°ú ÀÓ°èÁö¼Ó±â°£ÀÇ Ã·µÎÀ¯·®ÀÌ À¯»çÇÑ °ªÀ» º¸¿´´Ù. AMC III Á¶°ÇÀÇ À¯È¿¿ì·®¿¡ ´ëÇÏ¿© ³ôÀº »ó°ü¼ºÀ» Áö´Ï´Â À¯¿ª¸éÀû°ú ÀÓ°èÁö¼Ó±â°£ÀÇ °ü°è½ÄÀ» À¯µµÇÏ¿´À¸¸ç, À¯¿ª¸éÀû 50-5,000$ extrm{km}^2$ÀÌ Áß±Ô¸ð ÇÏõÀ¯¿ª¿¡¼ ÀÓ°èÁö¼Ó±â°£À» °áÁ¤Çϴµ¥ À¯¿ëÇÑ ½ÄÀ¸·Î ÀÌ¿ëµÉ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. ¶ÇÇÑ, ´ÜÀ§µµ Ư¼ºÄ¡¸¦ ÀÌ¿ëÇÑ ¹«Â÷¿ø ȸ±Í½ÄÀ» À¯µµÇÏ¿´´Ù.£¿£¿£¿£¿£¿£¿£¿£¿£¿£¿e£¿£¿ |
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| This study is to propose the temporal pattern of design rainfall which causes maximum peak discharge, and to analyze the relation of catchment characteristics and critical durations for gauged midsize catchment. Hydrologic analysis has done over the 44 midsize catchments with 50-5,000$ extrm{km}^2$. The type of temporal pattern of design rainfall which causes maximum peak discharge has resulted in Huff's 4 quartile distribution method for effective rainfall(AMC III) The peak discharges of 24hr rainfall duration are similar to those of critical duration for 50-600$ extrm{km}^2$, and the peak discharges of 48hr rainfall duration are similar to those of critical duration for 600-5,000$ extrm{km}^2$. Therefore, if the proper rainfall intensity formula is selected, 24hr or 48hr rainfall duration may be regarded as the critical duration of midsize catchment. A simple regression equation is derived by using a catchment area and critical duration with high correlation for the case of effective rainfall(AMC III). Therefore, it can be used to determine the critical duration of ungauged catchment with 50-5,000$ extrm{km}^2$. Also, dimensionless regression equation is derived by using characteristic values of unit hydrograph. |
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| Ű¿öµå |
| µµ´Þ½Ã°£;ÀÓ°èÁö¼Ó±â°£;¼³°è°¿ìÀÇ ½Ã°£ºÐÆ÷;24½Ã°£ °¿ìÁö¼Ó±â°£;time of concentration;critical duration;temporal pattern of design rainfall;24hr rainfall duration; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.37, no.9, 2004³â, pp.695-706
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200413842112854)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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