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Çѱ¹¼öÀÚ¿øÇÐȸ / v.38, no.3, 2005³â, pp.223-233
GIS¸¦ ÀÌ¿ëÇÑ Åä»çÀÌ¼Û ¹× ÅðÀûºÐÆ÷ ¿¹Ãø±â¹ý °³¹ß
( Modelling of Sediment Transportation and Deposition in GIS )
¼Õ±¤ÀÍ; ¿µ³²´ëÇб³ Åä¸ñµµ½Ãȯ°æ°øÇкÎ;
 
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º» ¿¬±¸¿¡¼­´Â ºÐÆ÷Çü ¸ðÇü°ú ¼¿ÀÇ À¯ÀÔ, À¯Ãâ ¹× Àú·ù·®¿¡ ´ëÇÑ Áú·®º¸Á¸ÀÇ ¹ýÄ¢À» ÀÌ¿ëÇÏ¿© Åä»çÀÇ ÀÌ¼Û ¹× ÅðÀûºÐÆ÷¿¹Ãø±â¹ýÀ» °³¹ßÇÏ¿´´Ù. ¸ðÇüÀº (a) Åä»çħ½Ä ¿¹Ãø (b) È帧¹æÇâ ¹× À¯Ãâ·® »êÁ¤ ±×¸®°í (c) Åä»ç¿¡ ´ëÇÑ Áú·®º¸Á¸ÀÇ ¹ýÄ¢¿¡ µû¸¥ ¼¿º° Åä»çÀ̵¿·® »êÁ¤ÀÇ ¼¼ ´Ü°è·Î ±¸¼ºµÇ¾ú´Ù. Åä¾çħ½ÄÀº ¹ü¿ëÅä¾ç¼Õ½Ç°ø½Ä(USLE)À» Ȱ¿ëÇÏ¿´À¸¸ç ºÐÆ÷Çü ¸ðÇü¿¡¼­ÀÇ °æ»çÀå(L) »êÁ¤Àº ÀϹæÇâ(SF)°ú ´Ù¹æÇâ È帧 ¾Ë°í¸®Áò(MF)À» »ç¿ëÇÏ¿´´Ù. °æ»ç(S) »êÁ¤À» À§Çؼ­´Â Maximum Downhill Slope Method (MDS) and the Neighborhood Method (NBH) ±â¹ýÀ» Ȱ¿ëÇÏ¿´°í ¼¿º° Åä¾çÀÇ À̵¿Àº Ferroµî(1998)°ú Swift (2000)ÀÇ Åä»çÀü´Þ·ü(DR)°³³äÀ» Àû¿ëÇÏ¿´´Ù. °³¹ßµÈ ¸ðÇüÀº ½ÃÇèÀ¯¿ªÀÇ ½ÇÃø Åä»ç·®°úÀÇ ºñ±³°ËÅ並 ÅëÇÏ¿© °ËÁõÇÏ¿´´Ù. 3°³ÀÇ ³ó¾÷¿ë Àú¼öÁö À¯¿ª¿¡ Àû¿ëÇÑ °á°ú, FerroÀÇ Åä»çÀü´Þ·ü »êÁ¤°ø½Ä°ú MDS, MF ±â¹ýÀ» ÀÌ¿ëÇÑ ÇØ¼®ÀÌ Àú¼öÁöÀÇ ¿î¿µ±â·Ï°ú °¡Àå À¯»çÇÑ °á°ú¸¦ Á¦½ÃÇÑ´Ù´Â »ç½ÇÀ» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù.
In this study, a two-dimensional model for identifying areas of erosion and deposition over a basin was developed based on the mass balance principle in a distributed model. The program consists of three steps: (a) estimation of soil erosion; (b) determination of flow amount and direction; and (c) estimation of mass balance. Soil erosion was estimated with USLE. A single-direction (SF) and a multi-direction flow algorithm (MF) were applied to estimate slope length (L). The Maximum Downhill Slope Method (MDS) and the Neighborhood Method (NBH) were used to estimate the slope degree (S). Sediment transport resulting from eroded soil was estimated using Ferro's (1998) and Swift's (2000) sediment delivery ratio (DR). The model was validated by comparing the predicted sediment yields for three basins with measured data. The developed algorithm showed that Ferro's DR method combined with the MDS and MF produced the best agreement with the dredging records of three agricultural reservoir basins in Korea.
 
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Åä»çÀ̼Û;Åä»çÀü´Þ·ü;Åä»çħ½Ä ¹× ÅðÀûºÐÆ÷;Sediment transportation;Sediment delivery ratio;Erosion and deposition distribution;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.38, no.3, 2005³â, pp.223-233
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200531234572317)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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