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Çѱ¹¼öÀÚ¿øÇÐȸ / v.28, no.4, 1995³â, pp.155-169
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GIUHÀÇ Áöü½Ã°£ »êÁ¤À» À§ÇÑ ¼ö¹®ÇÐÀû ÇØ¼®
( Hydrologic Analysis for Determining the Lag Times of GIUH ) |
| ÀÌÇõ±Ô;À±¼®¿µ;±èÀçÇÑ; Ãæ³²´ëÇб³ ´ëÇпø Á¹¾÷;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø, Ãæ³²´ëÇб³ Åä¸ñ°øÇаú;;
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| º» ¿¬±¸´Â ÁöÇüÇÐÀû ¼ø°£´ÜÀ§µµ¸¦ »êÁ¤Çϴµ¥ ÀÖ¾î¼, ÁÖµÈ ¸Å°³º¯¼öÀÎ Áöü½Ã°£À» ¼¼°¡ÁöÇüÀ¸·Î °áÁ¤ÇÏ¿©, ±× °á°úµéÀ» ¼ö¹®ÇÐÀûÀ¸·Î ÇØ¼®ÇÏ¿´´Ù. Áöü½Ã°£ÀÇ »êÁ¤¹æ¹ýÀ¸·Î¼ ù°·Î Æò±ÕÀ¯¼Ó¸¸À» ÀÌ¿ëÇÑ °Í°ú, µÑ°·Î À¯·Î¿¬Àå°ú Æò±ÕÀ¯¼ÓÀ» Á¶ÇÕÇÑ ¹æ¹ýÀ» Àû¿ëÇÏ¿´À¸¸ç, ¼Â°·Î À¯¿ª¸éÀû°ú Boyd¹× SinghÀÇ °æÇèÀû °è¼öµé·ÎºÎÅÍ ¾ò¾îÁø Áöü½Ã°£ÀÇ »ó°ü½ÄÀ» »ç¿ëÇÏ¿´´Ù. °¢ ¹æ¹ýµéÀÇ °á°úºÐ¼®À» À§ÇÏ¿© ½ÇÁ¦À¯¿ªÀÇ ÀÚ·áµéÀ» »ç¿ëÇÏ¿´À¸¸ç, ±× °á°ú·ÎºÎÅÍ ¼ÒÀ¯¿ªÀÇ °æ¿ì¿¡´Â Æò±ÕÀ¯¼Ó¸¸ÀÇ ¹æ¹ýµµ °¡´ÉÇϳª, À¯¿ª¸éÀûÀÌ Ä¿Áú¼ö·Ï À¯Ãâ·®ÀÇ ÀçÇö¼º¿¡ ÀÖ¾î Á¤È®µµ°¡ ¶³¾îÁüÀ» ¾Ë ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ¼¼¹øÂ° ¹æ¹ýÀº Áöü½Ã°£ÀÇ Á¤È®µµ°¡ ¶³¾îÁ®, ¸éÀû»Ó¸¸ ¾Æ´Ï¶ó ´Ù¸¥ ¼ö¹®ÇÐÀû Ư¼ºÀÎÀڵ鵵 °í·ÁµÇ¾î¾ß ÇÔÀ» ³ªÅ¸³»¾ú´Ù. µû¶ó¼, Àû¿ë¹æ¹ýµéÁß µÎ¹øÂ° ¹æ¹ýÀÌ Áöü½Ã°£ »êÁ¤¿¡ ÀÖ¾î¼ ¿ì¼öÇÔÀ» º¸¿©ÁÖ¾úÀ¸¸ç, À̷κÎÅÍ ±¸ÇÑ À¯Ãâ·®µµ Ÿ ¹æ¹ýµé¿¡ ºñÇØ ½ÇÃøÄ¡¿Í °¡Àå ±Ù»çÇÏ°Ô Á¢±ÙÇÏ¿´´Ù. |
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| Three types of methods are used to determine the lag time which is an important parameter in estimating the geomorphological instantaneous unit hydrograph (GIUH) and their results are anlyzed hydrologically in this study. The first method uses only the average velocity and second one uses the combination of the stream length and the average velocity. The third method employs the relationship between watershed area and lag time obtained from the empirical coefficients of Boyd and Singh. To verify the applicabilities of such methods to the actual river basin, the obtained lag times were tested by using the observed data. The results showed that the first method was applicable to small watershed area but not to larger area. The several other hydrologic characteristics beside the watershed area should be considered for the third method because the accuracy of the lag time was not good. Finally, the second method gave the most similar simulation results and the best agreements to the observed runoff data than any other method. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.28, no.4, 1995³â, pp.155-169
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199511920095990)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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