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Çѱ¹¼öÀÚ¿øÇÐȸ / v.39, no.11, 2006³â, pp.969-976
RADARSAT SAR ¿µ»óÀ» ÀÌ¿ëÇÑ ³óÃÌÁö¿ª ¼ÒÇÏõÁÖº¯ÀÇ Ä§¼öÇÇÇØÁö¿ª ÃßÁ¤ ¿¬±¸
( A Study on the Extraction of Flood Inundated Scar of Rural Small Stream Area Using RADARSAT SAR Images )
À̹̼±;¹Ú±Ù¾Ö;±è¼ºÁØ; °Ç±¹´ëÇб³ ´ëÇпø Áö¿ª°Ç¼³È¯°æ°øÇаú;°Ç±¹´ëÇб³ ´ëÇпø Áö¿ª°Ç¼³È¯°æ°øÇаú;°Ç±¹´ëÇб³ »ý¸íȯ°æ°úÇдëÇÐ »çȸȯ°æ½Ã½ºÅÛ°øÇÐ;
 
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º» ¿¬±¸ÀÇ ¸ñÀûÀº È«¼ö¹ü¶÷ ½Ã¿¡µµ ħ¼ö»óȲÀÇ ÆÄ¾ÇÀÌ °¡´ÉÇÑ RADARSAT SAR ¿µ»óÀ» ÀÌ¿ëÇÏ¿© ¾È¼ºÃµ ³óÃÌÀ¯¿ªÀÇ È«¼ö¿¡ ÀÇÇÑ Ä§¼öÁö¿ªÀ» ÃßÁ¤ÇϰíÀÚ ÇÏ¿´´Ù. ºÐ¼®¿¡ »ç¿ëµÈ ¿µ»óÀº ¾È¼ºÃµÀ¯¿ª¿¡ 1998³â 8¿ù 9ÀÏ¿¡ ¹ß»ýÇÑ È«¼öÇÇÇØ½Ã±â¸¦ Áß½ÉÀ¸·Î È«¼ö Àü, Á÷ÈÄ, ÈÄÀÇ ¼¼ ½Ã±â ¿µ»óÀ» ¼±Á¤ÇÏ¿´´Ù. 5m DEMÀ» ÀÌ¿ëÇÏ¿© Á¤»çº¸Á¤À» ½Ç½ÃÇÑ ÈÄ, ¼¼ ¿µ»óÀÇ RGB ÇÕ¼º¹æ¹ýÀ» ½Ç½ÃÇÑ °á°ú ħ¼öµÈ Áö¿ªÀÇ °ø°£Àû À§Ä¡¸¦ ÆÄ¾ÇÇÒ ¼ö ÀÖ¾úÀ¸¸ç, ¿µ»ó°£ÀÇ ¿¬»ê¹æ¹ýÀÎ Ratio ¹æ¹ýÀ» Àû¿ëÇÏ¿© º¸´Ù Á¤È®ÇÑ Ä§¼ö¿µ¿ªÀ» ÃßÃâÇÒ ¼ö ÀÖ¾ú´Ù. ħ¼öÁö¿ªÀº ¼ºÈ¯Ãµ°ú ÇÐÁ¤ÃµÀÇ ÇÕ·ùÁöÁ¡ ºÎ±ÙÀÇ ³ó°æÁö·Î ÃßÁ¤ÇÒ ¼ö ÀÖ¾úÀ¸¸ç, ħ¼ö¿µ¿ªÀº ÇÏõÀ¸·ÎºÎÅÍ µµ·Î ¹× ³ó·ÎÀÇ °æ°è±îÁö ÁøÇàµÇ¾úÀ½À» È®ÀÎÇÒ ¼ö ÀÖ¾ú´Ù. º» ¿¬±¸ÀÇ °á°ú´Â ³óÃÌÁö¿ªÀÇ ¼Ò±Ô¸ð·Î »êÀçÇÏ¿© ¹ß»ýÇÑ Ä§¼öÁö¿ªÀÇ ÀڷḦ ÀÛ¼ºÇϰí, ±× °á°ú¸¦ Á¤·®ÀûÀ¸·Î Á¦½ÃÇÏ´Â ¹æ¹ýÀ¸·Î Ȱ¿ëµÉ ¼ö ÀÖÀ» °ÍÀÌ´Ù.
The purpose of this study is to trace the flood inundation area around rural small stream by using RADARSAT image because it has the ability of acquiring data during storm period irrespective of rain and cloud. For the storm August 9, 1998 in the Anseong-cheon watershed, three RADARSAT images before, just after and after the storm were used. After ortho-rectification using 5 m DEM, two methods of RGB composition and ratio were tried and found the inundated area in the tributary stream, the Seonghwan-cheon and the Hakjeong-cheon. The inundated area had occurred at the joint area of two streams, thus the floodwater overflowed bounding discharge capacity of the stream. The progression of damage areas were stopped by the local road and farm road along the paddy. The result can be used to acquire the flood inundation data scattered as a small scale in rural area.
 
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ħ¼öÇÇÇØÁö¿ª;¼ÒÇÏõ;RADARSAT SAR ¿µ»ó;Á¤»çº¸Á¤;RGB ÇÕ¼º¹æ¹ý;Ratio ¹æ¹ý;flood inundation area;rural small stream;RADARSAT images;ortho-rectification;RGB composition;ratio;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.39, no.11, 2006³â, pp.969-976
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200604623537845)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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