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Çѱ¹¼öÀÚ¿øÇÐȸ / v.42, no.9, 2009³â, pp.691-702
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HackÀÇ ¹ýÄ¢°ú Áý¼öÆò¸éÀÇ ±âÇÏÇÐÀû Ư¼º
( Hack's Law and the Geometric Properties of Catchment Plan-form ) |
±èÁÖö;ÀÌ»óÁø; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¿ø;
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º» ¿¬±¸¿¡¼´Â Áý¼öÆò¸éÀÇ ½ÅÀåµµ¿¡ ´ëÇÑ °ËÅä¿Í ÇÔ²² ÀÚ¿¬À¯¿ªÀÇ ÀÚ±âÀ¯»ç¼º ¹× ÀÚ±â»ó»ç¼ºÀ» °í·ÁÇÏ¿© HackÀÇ ¹ýÄ¢¿¡ ´ëÇÑ Ã¼°èÀûÀÎ Á¢±ÙÀ» ¼öÇàÇÏ¿© º¸¾Ò´Ù. DEMÀ¸·ÎºÎÅÍ ÃßÃâµÈ ´ë»óÀ¯¿ªÀÇ Áý¼öÆò¸éµéÀº HackÀÇ ¹ýÄ¢¿¡ ´ëÇÑ µÎ °¡¼³ÀÌ »óÈ£ÀÛ¿ëÀ» ÇÒ °æ¿ì ³ªÅ¸³¯ ¼ö ÀÖ´Â À¯¿ª Çü»óµé¿¡ ´ëÇÑ ¸ðÁý´Üó·³ ³ªÅ¸³µ´Ù. À¯¿ª¸éÀû¿¡ µû¸¥ Áý¼öÆò¸é ½ÅÀåµµÀÇ º¯È¸¦ µµ½ÃÇØ º» °á°ú À¯·Î¿¬ÀåÀ» ±â¹ÝÀ¸·Î ÇÑ °íÀüÀûÀÎ ÁöÇüÀÎÀڵ麸´Ù´Â °ü¼ºÀû·üÀ» ±â¹ÝÀ¸·Î ÇÑ ½ÅÀåµµ°¡ º¸´Ù Á÷°üÀûÀÎ °á°ú¸¦ ÁÙ ¼ö ÀÖÀ» °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. HackÀÇ ¹ýÄ¢¿¡ ´ëÇÑ Áö¼ö h´Â Gray (1951)ÀÇ ¿¬±¸°á°ú¿Í À¯»çÇÏ°Ô »êÁ¤µÊÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. ÇÏÁö¸¸ ´ë»óÀ¯¿ªµé¿¡ ´ëÇÑ HurstÀÇ Áö¼ö H´Â 0.96À¸·Î ³ªÅ¸³ª º» ¿¬±¸¿¡¼ °í·ÁÇÑ Áý¼öÆò¸éµéÀº ±Ô¸ð¿¡ µû¶ó µî¹æ¼º ¼ºÀå·üÀ» °¡Áö°í ÀÖ´Â °ÍÀ¸·Î »ç·áµÇ¾ú´Ù. À̷κÎÅÍ º» ¿¬±¸ÀÇ ´ë»óÀ¯¿ªµéÀÇ Çü»óÀº Áý¼öÆò¸éÀÇ ÀÚ±âÀ¯»ç¼ºº¸´Ù´Â À¯·Î¿¬ÀåÀÇ ÀÚ±â»ó»ç¼º¿¡ ´õ ¿µÇâÀ» ¹Þ´Â °ÍÀ¸·Î Ãß·ÐÇÒ ¼ö ÀÖ¾ú´Ù. |
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This study makes a systematic approach to Hack's law considering self-affinity and self-similarity of natural basins as well as the elongation of corresponding catchment-plan forms. Catchment-plan forms extracted from DEM appear to be the population come from the interactions of 2 hypotheses on Hack's law. It is judged that the elongation measures based on inertia moments are more intuitive than the ones based on main channel lengths. The exponent of Hack's law, h, seems to be similar to the result of Gray's study (1961). However Hurst exponent, H, being 0.96 imply that catchment-plan forms considered in this study have isotropic increasing properties with scale. From this point of view it is inferred that the shapes of the basins in this study would be more affected from self-similarity of main channel lengths than self-affinity of catchment-plan forms. |
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Ű¿öµå |
HackÀÇ ¹ýÄ¢;Áý¼öÆò¸é;½ÅÀåµµ;ÀÚ±âÀ¯»ç¼º;ÀÚ±â»ó»ç¼º;Hack's law;catchment plan-form;elongation;self-affinity;self-similarity; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.9, 2009³â, pp.691-702
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200927941501026)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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