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Çѱ¹¼öÀÚ¿øÇÐȸ / v.41, no.2, 2008³â, pp.229-239
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4Â÷ ÇÏõ¿¡¼ÀÇ GIUHÀÇ À¯µµ ¹× ÃʱâÈ®·üÀÇ º¸Á¤¿¡ °üÇÑ ¿¬±¸
( Study on Derivation of Fourth-Order GIUH and Revision of Initial State Probability ) |
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º» ¿¬±¸´Â 3Â÷ ÇÏõ¿¡ ´ëÇÏ¿© À¯µµµÇ¾ú´ø ÁöÇüÇüÅÂÇÐÀû¼ø°£´ÜÀ§µµ(GIUH)¸¦ 4Â÷ ÇÏõÀ¯¿ª±îÁö È®ÀåÇÏ¿© ´Ù¾çÇÑ À¯¿ª¿¡ Àû¿ëÇÒ ¼ö ÀÖµµ·Ï ÇÏ¿´´Ù. $2{sim}4$Â÷ ÇÏõ¿¡ ´ëÇÑ GIUH¸¦ ºñ±³ÇÏ¿´À¸¸ç À¯¿ªÀÇ ÁöÇü¸Å°³º¯¼ö°¡ µ¿ÀÏÇÒ °æ¿ì ÇÏõÂ÷¼ö¸¦ ³ô°Ô °¡Á¤ÇÒ¼ö·Ï ´ÜÀ§µµÀÇ Ã·µÎÀ¯Ãâ·®Àº ÀÛ¾ÆÁö°í ÷µÎ¹ß»ý½Ã°£Àº ´Ê¾îÁö´Â °æÇâÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. GIUHÀÇ Àû¿ëÀ» À§Çؼ´Â ¸éÀûºñ¿Í ºÐ±âºñ µî ÁöÇü¸Å°³º¯¼ö¸¦ »ç¿ëÇÏ¿© ÃʱâÈ®·üÀ» »êÁ¤Çϴµ¥, À̶§ ÁöÇü¸Å°³º¯¼ö°¡ °¡Áö´Â ¿ÀÂ÷ ¶§¹®¿¡ ƯÁ¤ À¯¿ª¿¡¼ ÃʱâÈ®·üÀÌ À½¼ö°¡ µÇ´Â ¹®Á¦°¡ ¹ß»ýÇÏ¸ç ´ÜÀ§µµÀÇ Àü¹ÝºÎ¿¡¼ À¯Ãâ·®ÀÌ À½ÀÇ °ªÀ» °¡Áö±âµµ ÇÑ´Ù. ÀÌ·¯ÇÑ ¹®Á¦Á¡À» ÇØ°áÇϱâ À§ÇÏ¿© º» ¿¬±¸¿¡¼´Â ArcVeiw GIS 3.2¸¦ »ç¿ëÇÏ¿© Àüü¸éÀû¿¡ ´ëÇÑ Á÷Á¢À¯Ãâ¸éÀûÀÇ ºñÀ²·Î ÃʱâÈ®·üÀ» °è»êÇÏ¿´´Ù. Á¦¾ÈµÈ ¹æ¹ýÀ» Àû¿ëÇÏ¿© »ó¾È¹Ì, º´Ãµ, »ê°è µîÀÇ À¯¿ª¿¡¼ $2{sim}4$Â÷ ÇÏõ¿¡ ´ëÇÑ ¼ø°£´ÜÀ§µµ¸¦ »êÁ¤ÇÏ¿© º» °á°ú, À§ÀÇ ¹®Á¦Á¡À» ÇØ°áÇÒ ¼ö ÀÖ¾ú´Ù. |
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This study is to derive the fourth-order Geomorphologic Instantaneous Unit Hydrograph (GIUH), driven for only third-order basin, for the application of GIUH to various types of basin. The second, third, and fourth order GIUHs were compared for various topographical conditions. The results showed lower peak runoff and later peak time in GIUH with higher stream order. Initial state probability was estimated from a function of geomorphologic parameters such as area ratio and bifurcation ratio for the application of GIUH. However, initial state probabilities and early parts of the GIUHs have negative values for many basins due to the inherent errors in the parameters. Initial state probability was calculated by area ratio of direct drainage using ArcView GIS 3.2 model to solve the problem. GIUHs were estimated for three basins, Sanganmi, Byeongcheon, and Sangye, using the above suggested method, and the results showed that the method is free of the problem. |
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Ű¿öµå |
ÃʱâÈ®·ü;ÇÏõÂ÷¼ö;´ÜÀ§µµ;4Â÷;GIUH;Initial State Probability;Stream Order;Unit Hydrograph;Fourth order; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.41, no.2, 2008³â, pp.229-239
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200807341722717)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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