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Çѱ¹¼öÀÚ¿øÇÐȸ / v.29, no.4, 1996³â, pp.209-221
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¼ÒÇÏõ À¯¿ª¿¡¼ÀÇ À¯ÃâÇØ¼®¸ðÇü ºñ±³
( Comparison of Runoff Models for Small River Basins ) |
| °ÀνÄ; ºÎ»ê´ëÇб³ »ý»ê±â¼ú¿¬±¸¼Ò Ưº°¿¬±¸¿ø;
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| ¿ì¸®³ª¶ó ´ëºÎºÐÀÇ ¼ÒÇÏõ À¯¿ªÀº ¼öÀ§³ª À¯·®ÀÇ °üÃøÀÌ ÇàÇØÁöÁö ¾ÊÀº ¹Ì°èÃø À¯¿ªÀ¸·Î ¹æÄ¡µÇ¾î ÀÖ¾î È«¼ö½Ã Á¤È®ÇÑ À¯Ãâ·®ÀÇ ÃßÁ¤À̳ª È«¼öÇÇÇØ °æ°¨À» À§ÇÑ ÀûÀýÇÑ ´ëÃ¥¼ö¸³ÀÌ ¾î·Á¿î ½ÇÁ¤ÀÌ´Ù. º» ¿¬±¸¿¡¼´Â ºÎ»êÁö¹æ ¼ö¿µ° ¼ö°è Áß 3°³ ¼ÒÇÏõ À¯¿ªÀ» ¿¬±¸´ë»óÀ¯¿ªÀ¸·Î ¼±Á¤ÇÏ¿© ÃøÁ¤µÈ ¼ö¹®ÀڷḦ ±Ù°Å·Î °¢Á¾ À¯Ã⠸Ű³º¯¼ö¸¦ ÃßÁ¤ÇÏ¿´´Ù. ¶ÇÇÑ ±âÁ¸ÀÇ À¯ÃâÇØ¼® ¸ðÇüÁß Àú·ùÇÔ¼ö¹ý°ú ¼±Çü ÀÌ»êÈ ÀÔ·Â-Ãâ·Â ¸ðÇü ¹× ¼±ÇüÀú¼öÁö ¸ðÇüÀ» äÅÃÇÏ¿© À¯ÃâÇØ¼®À» ½Ç½ÃÇÏ¿´´Ù. °¢ ¸ðÇü¿¡ ÀÇÇÑ °è»ê ¼ö¹®°î¼±Àº ½ÇÃø ¼ö¹®°î¼±°ú Àß ÀÏÄ¡ÇÏ¿´À¸¸ç, ÀÌµé ¸ðÇüÀº ¼ÒÀ¯¿ªÀÇ È«¼ö»ç»óÀ» ¼º°øÀûÀ¸·Î ³ªÅ¸³¾ ¼ö ÀÖ´Ù´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù. º» ¿¬±¸¿¡¼ äÅÃÇÑ ¸ðÇü Áß Àú·ùÇÔ¼ö¹ýÀº Å©±â°¡ ÀÛÀº È«¼ö¿¡´Â Àû¿ëÇÏ±â ¾î·Æ´Ù´Â ¹®Á¦Á¡¿¡µµ ºÒ±¸ÇÏ°í °¡Àå ¾çÈ£ÇÑ °á°ú¸¦ Á¦°øÇÏ¿´À¸¸ç, ¼±ÇüÀú¼öÁö ¸ðÇüÀº ÀûÀº ¼öÀÇ ¸Å°³º¯¼ö·Îµµ ºñ±³Àû ¾çÈ£ÇÑ °á°ú¸¦ Áشٴ °ÍÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ Àú·ùÇÔ¼ö¹ý ¸Å°³º¯¼ö¸¦ ÀÌ¿ëÇÑ ¹æ¹ý, $Phi$-index¹ý ¹× ÀÏÁ¤ºñ¼Õ½Ç¹ý µî ¼¼ °¡Áö ¹æ¹ýÀÇ À¯È¿°¿ì »êÁ¤¹ý¿¡ µû¸¥ ¸ðÇüÀÇ ÀçÇö¼ºÀ» Æò°¡ÇÏ¿´´Ù. ¿Âõõ À¯¿ªÀÇ °æ¿ì¿¡´Â Àú·ùÇÔ¼ö¹ý ¸Å°³º¯¼ö¸¦ ÀÌ¿ëÇÑ ¹æ¹ýÀÌ °¡Àå ¿ëÈ£ÇÑ °á°ú¸¦ ³ªÅ¸³»¾úÀ¸³ª, ´Ù¸¥ µÎ ¿¬±¸´ë»óÀ¯¿ªÀÇ °æ¿ì¿¡´Â $Phi$-index¹ýÀÌ ´õ ³ªÀº °á°ú¸¦ Á¦°øÇÏ¿´´Ù. |
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| It may be difficult to make exact estimates of peak discharge or runoff depth of a flood and to establish the proper measurement for the flood protection since water stages or discharges have been rarely measured at small river basins in Korea. Three small catchments in the Su-Young river basin in Pusan were selected for the study areas. Various runoff parameters for the study areas were determined, and runoff analyses were performed using three different runoff models available in literatures; the storage function method, the discrete, linear, input-output model, and the linear reservoir model. The hydrographs calculated by three different methods showed good agreement with the observed flood hydrographs, indicating that the models selected are all capable of sucessfully modeling the flood events for small watersheds. The storage function method gave the best results in spite of its weakness that it could not be applicable to small floods, while the linear reservoir model was found to provide relatively good results with less parameters. The capabilities of simulating flood hydrographs were also evaluated based on the effective rainfall from the storage function parameters, the $Phi$-index method, and the constant percentage method. For the On-Cheon stream watershed, the storage function parameters provided better estimates of effective rainfall for regenerating flood hydrographs than any others considered in the study. The $Phi$-index method, however, resulted in better estimates of effective rainfall for the other two study areas. |
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.29, no.4, 1996³â, pp.209-221
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199611920097601)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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