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Çѱ¹¼öÀÚ¿øÇÐȸ / v.40, no.5, 2007³â, pp.373-382
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( Analysis of Drainage Structure Based on the Geometric Characteristics of Drainage Density and Source-Basin ) |
| ±èÁÖö;±èÀçÇÑ; Ãæ³²´ëÇб³ºÎ¼Ó »ê¾÷±â¼ú¿¬±¸¼Ò;Ãæ³²´ëÇб³ Åä¸ñ°øÇаú;
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| ¼ö·Î°¡ ½ÃÀ۵Ǵ ÁöÁ¡ÀÇ Á¤È®ÇÑ À§Ä¡¸¦ ã´Â °ÍÀº ±¸¸ªÁö »ç¸é»óÀÇ ¹°ÀÇ µ¿Àû°Åµ¿À¸·Î ÀÎÇÏ¿© ¸Å¿ì ¾î·Æ´Ù. ÀÌ·¯ÇÑ ¸ñÀûÀ» À§ÇÏ¿©, ±èÁÖö°ú ±èÀçÇÑ(2007)Àº DEMÀ» ÀÌ¿ëÇÑ °æ»ç¿Í ¸éÀû »çÀÌÀÇ ±Ô¸ð¿¡ µû¸¥ °Åµ¿Æ¯¼º¿¡ µû¶ó ½ÇÁ¦ À¯¿ª³» ¼ö·Î¸ÁÀ» Á¦½ÃÇÑ ¹Ù ÀÖ´Ù. º» ¿¬±¸´Â À̵éÀÇ ¿¬±¸ ¼º°úÀÇ ¿¬ÀåÀ¸·Î¼, ¹è¼ö¹Ðµµ¿Í ¼ö¿øÀ¯¿ªÀÇ ±âÇÏÇÐÀû Ư¼ºÀ» ±â¹ÝÀ¸·Î ÇÏ¿© DEMÀ¸·ÎºÎÅÍ µ¿Á¤µÈ °¡¼³¼ö·Î¸ÁÀÇ ½Å·Ú¼ºÀ» Æò°¡ÇÏ¿© º¸¾Ò´Ù. ±× °á°ú °æ»ç-¸éÀûÇѰè±âÁØ¿¡ ÀÇÇÑ °¡¼³¼ö·Î¸ÁÀÌ ÀÚ¿¬À¯¿ªÀÇ ¹è¼ö±¸Á¶¸¦ ¸Å¿ì Àß ¹¦»çÇϰí ÀÖÀ½À» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. ¶ÇÇÑ ÁöÇüÇÐÀû µ¿Áú¼ºÀ» °¡Áø Áö¿ª³» ¼ö¿øÀ¯¿ªÀÇ Çü»óµé »çÀÌ¿¡´Â ÈǸ¢ÇÑ ±âÇÏÇÐÀû »ó»ç¼ºÀÌ Á¸ÀçÇÔÀ» Ãß·ÐÇÒ ¼ö ÀÖ¾ú´Ù. ¸éÀûÇѰè±âÁØÀº ¼ö¿øÀ¯¿ªÀÇ Çü»óÀ» ±¸¼ÓÇÏ¿© ¿Ö°îµÈ ¹è¼ö±¸Á¶¸¦ ¾ß±âÇÒ ¼öµµ ÀÖ¾ú´Ù. ±×·³¿¡µµ ºÒ±¸Çϰí DEMÀ¸·ÎºÎÅÍ µ¿Á¤µÈ °¡¼³¼ö·Î¸ÁµéÀÌ °ø°£ ä¿ò ±¸Á¶¸¦ Àß Ç¥ÇöÇϰí ÀÖ´Â Á¡ÀÌ Æ¯È÷ ÁÖ¸ñµÈ´Ù. |
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| The exact resolution of channel initiation points is not so easy because of the dynamic behaviors of water movement on the hillslope. To this end, Kim, Joocheol and Kim, Jaehan(2007) have represented the channel network in real world basins for slope-area regimes using DEM. This study is its sequential content and then proposes the reliabilities of the hypothetical channel networks identified from DEM, which are assessed based on the geometric characteristics of drainage density and source-basin. The resulting drainage structures on the natural basin can be found to be depicted remarkably depending on the hypothetical channel network applied by slop-area threshold criterion. In addition, it is shown that there is a wonderful geometric similarity between the shapes of source- basin in a geomorphologically homogeneous region. Area threshold criterion could have restricted the shape of source-basin, so that it might bring about the incorrect drainage structures. But the hypothetical channel networks identified from DEM deserves special emphasis on expressing the space-filling structures nonetheless. |
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| Ű¿öµå |
| ¼ö·Î¸Á;¹è¼ö¹Ðµµ;¼ö¿øÀ¯¿ª;channel network;drainage density;source-basin; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.40, no.5, 2007³â, pp.373-382
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200727500008710)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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