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Çѱ¹¼öÀÚ¿øÇÐȸ / v.44, no.7, 2011³â, pp.553-563
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È®»êÆÄ¿¡ ±âÃÊÇÑ ºÐÆ÷Çü À¯Ãâ¸ðÇüÀÇ °³¹ß ¹× Àû¿ë
( Development and Application of Diffusion Wave-based Distributed Runoff Model ) |
| À̹ÎÈ£;À¯µ¿ÈÆ; ÇѰȫ¼öÅëÁ¦¼Ò ÇÏõÁ¤º¸¼¾ÅÍ;¾ÆÁÖ´ëÇб³ ȯ°æ°Ç¼³±³Åë°øÇкÎ;
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| ºÐÆ÷Çü À¯Ãâ¸ðÇü¿¡ ´ëÇÏ¿©´Â ÄÄÇ»ÅÍÀÇ ¹ß´Þ°ú Áö¸®Á¤º¸½Ã½ºÅÛÀÇ ±¸Ãà ¹× °ü·ÃÁ¤º¸ÀÇ Á¦°øÀÌ È°¼ºÈµÇ¸é¼ ÃÖ±Ù ¸¹Àº ¿¬±¸°¡ ÁøÇàµÇ°í ÀÖ´Ù. ÀÌ·¯ÇÑ ºÐÆ÷Çü À¯Ãâ¸ðÇüÀº ´ë»óÀ¯¿ªÀ» º¸´Ù ¼¼ºÐ ¿ä¼ÒÈÇÏ¿© °è»êÇÏ´Â ÀÌ·ÐÀûÀÌ°í ¹°¸®ÀûÀÎ ±â¹ÝÀÇ ¸ðÇüÀÌ´Ù. º» ¿¬±¸¿¡¼´Â ÅäÁöÇǺ¹ »óÅ¿¡ µû¶ó °áÁ¤µÇ´Â ¸Å°³º¯¼ö¿Í 2Â÷¿ø È®»êÆÄ ¹æÁ¤½Ä¿¡ ±âÃÊÇÏ¿© ÁöÇ¥¸é¿¡¼ÀÇ À¯Ãâ·®À» °è»êÇÏ´Â ¸ðÇüÀ» °³¹ßÇÏ¿´´Ù. ±âÁ¸¿¡ ¿¬±¸µÇ¾ú°Å³ª °³¹ß ÁßÀÎ À¯Ãâ¸ðÇüÀº ´ëºÎºÐ Manning-StricklerÀÇ Æò±Õ À¯¼Ó°ø½Ä°ú Manning Á¶µµ°è¼ö¸¦ ÀÌ¿ëÇÏ¿© À¯¼Ó°ú À¯·®À» »êÁ¤Çϰí ÀÖ´Ù. Manning Á¶µµ°è¼ö´Â »ç¿ë»óÀÇ ÆíÀǼº ¶§¹®¿¡ º¸ÆíÀûÀ¸·Î »ç¿ëÇϰí ÀÖÀ¸³ª, Â÷¿øÀÌ ÀÏÄ¡ÇÏÁö ¾Ê°í ÃßÁ¤ ½Ã ¸ðÈ£ÇÑ ¹®Á¦Á¡ÀÌ ÀÖ´Ù. ÀÌ·¯ÇÑ ¹®Á¦¸¦ °³¼±Çϱâ À§ÇØ º» ¿¬±¸¿¡¼´Â Manning-Strickler½Ä»Ó¸¸ ¾Æ´Ï¶ó Â÷¿øÀÌ ÀÏÄ¡ÇÏ´Â ChezyÀÇ Æò±ÕÀ¯¼Ó°ø½ÄÀ» Àû¿ëÇÏ¿© À¯Ãâ¸ðÇüÀ» °³¹ßÇÏ¿´´Ù. ¶ÇÇÑ, ChezyÀÇ ¸¶Âû°è¼ö¸¦ Àû¿ëÇϱâ À§ÇÏ¿© Á¶°íÀÇ ÇÔ¼ö·Î Ç¥ÇöµÇ´Â Áö¼öÇü ¸¶Âû°è¼ö »êÁ¤½ÄÀ» µµÀÔÇÏ¿´´Ù. µû¶ó¼ ¸ðÈ£ÇÑ Á¶µµ°è¼öÀÇ °³³äÀ»ÀÌ¿ëÇÏÁö ¾Ê°í °ÅÄ£ Á¤µµ¸¦¼öÄ¡ÈÇÏ¿© ¹°¸®ÀûÀÎ Àǹ̸¦ °¡Áø¸¶Âû°è¼ö¸¦ »êÁ¤Çϰí Àû¿ë °¡´É¼ºÀ» °ËÅäÇÏ¿´´Ù. º» ¿¬±¸¿¡¼´Â °³¹ßµÈ ¸ðÇüÀ» ºÎä²Ã ½ÇÇèÀ¯¿ª°ú À广Çü ½ÇÇèÀ¯¿ª ¹× ½ÇÁ¦À¯¿ªÀÎ ¾È¼ºÃµÀ¯¿ªÀ» ´ë»óÀ¸·Î 6°³ÀÇ »ç»óÀ» Àû¿ëÇÏ¿© ±× Àû¿ë¼ºÀ» È®ÀÎÇÏ¿´´Ù. |
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| According to the improvement of computer's performance, the development of Geographic Information System (GIS), and the activation of offering information, a distributed model for analyzing runoff has been studied a lot in recently years. The distribution model is a theoretical and physical model computing runoff as making target basin subdivided parted. In the distributed model developed by this study, the volume of runoff at the surface flow is calculated on the basis of the parameter determined by landcover data and a two-dimensional diffusion wave equation. Most of existing runoff models compute velocity and discharge of flow by applying Manning-Strickler's mean velocity equation and Manning's roughness coefficient. Manning's roughness coefficient is not matched with dimension and ambiguous at computation; Nevertheless, it is widely used in because of its convenience for use. In order to improve those problems, this study developed the runoff model by applying not only Manning-Strickler's equation but also Chezy's mean velocity equation. Furthermore, this study introduced a power law of exponential friction factor expressed by the function of roughness height. The distributed model developed in this study is applied to 6 events of fan-shape basin, oblong shape test basin and Anseongcheon basin as real field conditions. As a result the model is found to be excellent in comparison with the exiting runoff models using for practical engineering application. |
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| ºÐÆ÷Çü À¯Ãâ¸ðÇü;È®»êÆÄ ¹æÁ¤½Ä;Áö¼öÇü ¸¶Âû°è¼ö »êÁ¤½Ä;Á¶µµ°è¼ö;Distributed runoff model;Diffusion wave equation;Friction factor equation;Roughness coefficient; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.44, no.7, 2011³â, pp.553-563
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO201123163434089)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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