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Çѱ¹¼öÀÚ¿øÇÐȸ / v.42, no.3, 2009³â, pp.247-257
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( Development of Distributed Rainfall-Runoff Model Using Multi-Directional Flow Allocation and Real-Time Updating Algorithm (I) - Theory - ) |
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º» ¿¬±¸¿¡¼´Â ´Ù¹æÇâ È帧 ºÐ¹è ¾Ë°í¸®µë°ú ½Ç½Ã°£ º¸Á¤ ¾Ë°í¸®µëÀ» °³¹ßÇÏ¿© ºÐÆ÷Çü °¿ì-À¯Ãâ ¸ðÇü¿¡ Àû¿ëÇÏ¿´´Ù. °³¹ßµÈ ¾Ë°í¸®µëÀÇ Àû¿ë°ú ºÐÆ÷Çü ¸ðÇü Àû¿ë»óÀÇ ¾àÁ¡ÀÎ °è»ê½Ã°£ °³¼±À» À§ÇØ ºñ±³Àû °£´ÜÇÑ ¼ö¹®°úÁ¤ Áö¹è ¹æÁ¤½ÄµéÀ» ÀÌ¿ëÇÏ¿© ºÐÆ÷Çü °¿ì-À¯Ãâ ¸ðÇüÀ» ÀÛ¼ºÇÏ¿´´Ù. DEM(Digital Elevation Model)¸¦ ÀÌ¿ëÇÏ¿© °ø°£ÇØ»óµµ º¯È¿¡ µû¸¥ ÁöÇüÁ¤º¸¿Í È帧Á¤º¸ÀÇ º¯µ¿¼ºÀ» ÆÄ¾ÇÇÏ¿´´Ù. ¸ðÀǼöÇà Àüó¸® °úÁ¤À¸·Î °¡¿ëÇÑ °íÇØ»óµµ DEM ÀڷḦ »ç¿ëÇÏ¿© °ø°£ÇØ»óµµ º¯È¿¡ µû¸¥ È帧Á¤º¸ÀÇ ¼Õ½ÇÀ» ÃÖ¼ÒÈÇÏ°í »ó¼¼È帧Á¤º¸¸¦ ÀúÇØ»óµµ È帧Á¤º¸¿¡ ¹Ý¿µ½ÃŰ´Â ´Ù¹æÇâ È帧ºÐ¹è ¾Ë°í¸®µëÀ» °³¹ßÇÏ¿´´Ù. ¶ÇÇÑ ½Ç½Ã°£À¸·Î À¯¿ª»óÅ·®À» º¸Á¤ÇÏ´Â ½Ç½Ã°£ º¸Á¤ ¾Ë°í¸®µëÀ» °³¹ßÇÏ´Ù. °³¹ßµÈ ¸ðÇüÀº ÀúÇØ»óµµ ¸ðÀÇ¿¡¼ À¯Ãâ °úÁ¤ÀÇ ½ÇÁ¦Àû °Åµ¿ Á¤º¸¸¦ À¯ÁöÇÒ ¼ö ÀÖ´Ù. ±×·¯¹Ç·Î ¿¹Ãø Á¤È®µµ Çâ»ó ¹× °è»ê½Ã°£ÀÇ °³¼±ÀÌ ±â´ëµÈ´Ù. |
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In this study, a distributed rainfall-runoff model is developed using a multi-directional flow allocation algorithm and the real-time runoff updating algorithm. The developed model consists of relatively simple governing equations of hydrologic processes in order to apply developed algorithms and to enhance the efficiency of computational time which is drawback of distributed model application. The variability of topographic characteristics and flow direction according to various spatial resolution were analyzed using DEM(Digital Elevation Model) data. As a preliminary process using fine resolution DEM data, a multi-directional flow allocation algorithm was developed to maintain detail flow information in distributed rainfall-runoff simulation which has strong advantage in computation efficiency and accuracy. Also, a real-time updating algorithm was developed to update current watershed condition. The developed model is able to hold the information of actual behavior of runoff process in low resolution simulation. Therefore it is expected the improvement of forecasting accuracy and computational efficiency. |
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Ű¿öµå |
ºÐÆ÷Çü °¿ì-À¯Ãâ ¸ðÇü;´Ù¹æÇâ È帧 ºÐ¹è ¾Ë°í¸®µë;½Ç½Ã°£ º¸Á¤ ¾Ë°í¸®µë;distributed rainfall-runoff model;multi-directional flow allocation algorithm;real-time updating algorithm; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.3, 2009³â, pp.247-257
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200910534718591)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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