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Çѱ¹¼öÀÚ¿øÇÐȸ / v.43, no.4, 2010³â, pp.399-408
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ÁöÇüÇÐÀû ºÐ»êÀ» °í·ÁÇÑ Æ¯¼ºÀ¯¼ÓÀÌ ¼ø°£´ÜÀ§µµ Çü»ó¿¡ ¹ÌÄ¡´Â ¿µÇâ
( The Impact of Characteristic Velocities Considering Geomorphological Dispersion on Shape of Instantaneous Unit Hydrograph ) |
| ÃÖ¿ëÁØ;±èÁÖö;Ȳ¸¸ÇÏ; Ãæ³²´ëÇб³ ´ëÇпø Åä¸ñ°øÇаú;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;
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| º» ¿¬±¸¿¡¼´Â ÁöÇüÇÐÀû ºÐ»êÀ» °í·ÁÇÑ Æ¯¼ºÀ¯¼Ó¿¡ µû¸¥ Nash ¸ðÇü ¸Å°³º¯¼öÀÇ ¹Î°¨µµ ºÐ¼®À» ½Ç½ÃÇÏ¿´´Ù. ¶ÇÇÑ ÀÌ·¯ÇÑ Æ¯¼ºÀ¯¼ÓÀÇ º¯µ¿¿¡ µû¸¥ ¼ø°£´ÜÀ§µµÀÇ Çü»óÀÇ º¯È¸¦ ¼öÄ¡½ÇÇèÀ» ÅëÇØ ºñ±³ ºÐ¼®ÇÏ¿´´Ù. ´ë»óÀ¯¿ªÀº º¸Ã»Ãµ À¯¿ª Áß º»·ù¿¡ À§Ä¡Çϰí ÀÖ´Â 4°³ÀÇ ¼ÒÀ¯¿ªÀ» ¼±Á¤ÇÏ¿´´Ù. °¢ ´ë»óÀ¯¿ª¿¡ ´ëÇØ Áö¸®Á¤º¸Ã¼°è¸¦ ÀÌ¿ëÇÏ¿© ÁöÇ¥¸é°ú ÇÏõÀÇ ¹è¼ö°æ·Î±æÀÌ¿¡ ´ëÇÑ Æò±Õ°ú ºÐ»êÀ» »êÁ¤ÇÏ¿´´Ù. »êÁ¤µÈ ¹è¼ö°æ·Î±æÀÌ¿Í Æ¯¼ºÀ¯¼Ó¿¡ ÀÇÇÑ Nash ¸ðÇü ¸Å°³º¯¼ö¸¦ ÃßÁ¤ÇÏ¿´´Ù. ÃßÁ¤µÈ ¸Å°³º¯¼ö¿¡ ÀÇÇØ ¼ø°£´ÜÀ§µµ¸¦ À¯µµÇÏ¿© Çü»óÀÇ º¯È¸¦ ºñ±³ÇÏ¿´´Ù. ÀÌ·¯ÇÑ ¿¬±¸¸¦ ÅëÇØ µµÃâµÈ ÁÖ¿ä °á°ú´Â ´ÙÀ½°ú °°´Ù. Nash ¸ðÇü ¸Å°³º¯¼ö´Â ÁöÇ¥¸é Ư¼ºÀ¯¼Ó¿¡ ¹Î°¨ÇÏ°Ô ¹ÝÀÀÇÔÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ¼ø°£´ÜÀ§µµÀÇ °¨¼öºÎÀÇ Çü»ó°ú ÷µÎÀ¯·®Àº ÁöÇ¥¸é Ư¼ºÀ¯¼Ó¿¡ Áö¹èÀûÀÎ ¿µÇâÀ» ¹ÞÀ¸¸ç, ¼ø°£´ÜÀ§µµÀÇ »ó½ÂºÎÀÇ Çü»ó°ú ÷µÎ½Ã°£Àº ÇÏõ Ư¼ºÀ¯¼Ó¿¡ Áö¹èÀûÀÎ ¿µÇâÀ» ¹ÞÀ½À» ¾Ë ¼ö ÀÖ¾ú´Ù. |
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| The sensitivity of Nash model parameters is analyzed about characteristic velocities considering geomorphological dispersion in the present study. And changing shape of IUH compared and analyzed as variation of characteristic velocities through numerical experiment. Application watersheds are selected 4 subwatersheds which are located at main stream of Bocheong basin. The mean and variance of hillslope and stream path length are estimated in each watershed with GIS. And Nash model parameters are estimated with moments of path lengths and characteristic velocities. The changing trend about IUH which is derived Nash model parameters are compared as variation of characteristic velocities. The Major results of this study are summarized as follows. The Nash model parameters sensitively present changes about hillslope characteristic velocity. And the effect of the peak discharge and shape of recession in IUH dominate with hillslope's characteristic velocity, the effect of the peak time and shape of ascension in IUH dominate with channel's characteristic velocity. |
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| Ű¿öµå |
| ÁöÇüÇÐÀû ¼ø°£´ÜÀ§µµ;Nash ¸ðÇü;Ư¼ºÀ¯¼Ó;ÁöÇüÇÐÀû ºÐ»ê;GIUH;nash model;characteristic velocity;geomorphological dispersion; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.43, no.4, 2010³â, pp.399-408
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201013343111226)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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