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Çѱ¹¼öÀÚ¿øÇÐȸ / v.42, no.1, 2009³â, pp.33-50
±âÈĺ¯È­°¡ °æ¾Èõ À¯¿ªÀÇ ¼ö¹®¿ä¼Ò¿¡ ¹ÌÄ¡´Â ¿µÇâ Æò°¡
( Assessing Future Climate Change Impact on Hydrologic Components of Gyeongancheon Watershed )
¾È¼Ò¶ó;¹Ú¹ÎÁö;¹Ú±Ù¾Ö;±è¼ºÁØ; °Ç±¹´ëÇб³ ´ëÇпø »çȸȯ°æ½Ã½ºÅÛ°øÇаú;°Ç±¹´ëÇб³ ´ëÇпø »çȸȯ°æ½Ã½ºÅÛ°øÇаú;°Ç±¹´ëÇб³ ´ëÇпø »çȸȯ°æ½Ã½ºÅÛ°øÇаú;°Ç±¹´ëÇб³ »ý¸íȯ°æ°úÇдëÇÐ »çȸȯ°æ½Ã½ºÅÛ°øÇаú;
 
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º» ¿¬±¸¿¡¼­´Â SLURP Àå±â ¼ö¹®¸ðÇüÀ» ÀÌ¿ëÇÏ¿© ¹Ì·¡±âÈÄ¿Í ¿¹ÃøµÈ ÅäÁöÀÌ¿ëÀÚ·á ¹× ½Ä»ýÀÇ È°·Âµµ¸¦ °í·ÁÇÑ »óÅ¿¡¼­ ÇÏõÀ¯¿ªÀÇ ¼ö¹®¿ä¼Ò¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ºÐ¼®ÇÏ¿´´Ù. °æ¾Èõ »ó·ùÀ¯¿ª($260.4;km^2$)À» ´ë»óÀ¯¿ªÀ¸·Î ¼±Á¤ÇÏ¿© 4°³³â(1999-2002) µ¿¾ÈÀÇ ÀϺ° À¯Ãâ·® ÀڷḦ ¹ÙÅÁÀ¸·Î ¸ðÇüÀÇ º¸Á¤(1999-2000)°ú °ËÁõ(2001-2002)À» ½Ç½ÃÇÏ¿´´Ù. ¸ðÇüÀÇ º¸Á¤ ¹× °ËÁ¤ °á°ú Nash-Sutcliffe ¸ðÇüÈ¿À²Àº 0.79¿¡¼­ 0.60ÀÇ ¹üÀ§·Î $R^2$´Â 0.77¿¡¼­ 0.60ÀÇ ¹üÀ§·Î ³ªÅ¸³µ´Ù. ¹Ì·¡ ±âÈÄÀÚ·á´Â IPCC(Intergovernmental Panel on Climate Change)¿¡¼­ Á¦°øÇÏ´Â A2, A1B, B1 ±âÈĺ¯È­½Ã³ª¸®¿À ÀÇ MIROC3.2 hires, ECHAM5-OM ¸ðµ¨ÀÇ °á°ú °ªÀ» ÀÌ¿ëÇÏ¿´´Ù. ¸ÕÀú °ú°Å 30³â ±âÈÄÀÚ·á(1977-2006, baseline)¸¦ ¹ÙÅÁÀ¸·Î °¢ ¸ðµ¨º° 20C3M(20th Century Climate Coupled Model)ÀÇ ¸ðÀÇ °á°ú °ªÀ» ÀÌ¿ëÇÏ¿© °­¼ö¿Í ¿Âµµ¸¦ º¸Á¤ ÇÑ µÚ Change Factor Method·Î downscaling ÇÏ¿´´Ù. ¹Ì·¡ ±âÈÄÀÚ·á´Â 2020s(2010-2039), 2050s(2040-2069), 2080s(2070-2099)ÀÇ ¼¼ ±â°£À¸·Î ³ª´©¾î ºÐ¼®ÇÏ¿´´Ù. ºÒÈ®½Ç¼ºÀ» ÁÙÀ̰íÀÚ °³¼±µÈ CA-Markov±â¹ýÀ¸·Î ¹Ì·¡ ÅäÁöÀÌ¿ëÀ» ¿¹ÃøÇÏ¿´À¸¸ç, ¿ùº° NDVI¿Í ¿ùÆò±Õ±â¿Â°£ÀÇ ¼±Çü ȸ±Í½ÄÀ» µµÃâÇÏ¿© ¹Ì·¡ÀÇ ½Ä»ýÁö¼ö Á¤º¸¸¦ ÃßÁ¤ÇÏ¿´´Ù. ¸ðÇüÀÇ Àû¿ë°á°ú, ¹Ì·¡ À¯Ãâ·®Àº MIROC3.2 hires´Â A1B(2080s) ½Ã³ª¸®¿À¿¡¼­ ¿¬ À¯Ãâ·®ÀÌ 21.4% Áõ°¡, ECHAM5-OMÀº A1B(2050s) ½Ã³ª¸®¿À¿¡¼­ 8.9% Áõ°¡ÇÏ¿´´Ù. Áõ¹ß»ê·®Àº MIROC3.2 hires°¡ 3%, ECHAM5-OMÀº 16% Áõ°¡ÇÏ¿´´Ù. ¹Ì·¡ Åä¾ç¼öºÐ·®Àº ÇöÀç¿¡ ºñÇØ ¾à 1% Á¤µµ Áõ°¡ÇÏ¿´´Ù.
The impact on hydrologic components considering future potential climate, land use change and vegetation cover information was assessed using SLURP (Semi-distributed Land-Use Runoff Process) continuous hydrologic model. The model was calibrated (1999 - 2000) and validated (2001 - 2002) for the upstream watershed ($260.4;km^2$) of Gyeongancheon water level gauging station with the coefficient of determination and Nash-Sutcliffe efficiency ranging from 0.77 to 0.60 and 0.79 to 0.60, respectively. Two GCMs (MIROC3.2hires, ECHAM5-OM) future weather data of high (A2), middle (A1B) and low (B1) emission scenarios of the IPCC (Intergovernmental Panel on Climate Change) were adopted and the data was corrected by 20C3M (20th Century Climate Coupled Model) and downscaled by Change Factor (CF) method using 30 years (1977 - 2006, baseline period) weather data. Three periods data of 2010 - 2039 (2020s), 2040 - 2069 (2050s), 2070 - 2099 (2080s) were prepared. To reduce the uncertainty of land surface conditions, future land use and vegetation canopy prediction were tried by CA-Markov technique and NOAA NDVI-Temperature relationship respectively. MIROC3.2 hires and ECHAM5-OM showed increase tendency in annual streamflow up to 21.4 % for 2080 A1B and 8.9 % for 2050 A1B scenario respectively. The portion of future predicted ET about precipitation increased up to 3 % in MIROC3.2 hires and 16 % in ECHAM5-OM respectively. The future soil moisture content slightly increased compared to 2002 soil moisture.
 
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ÅäÁöÀ̿뺯ȭ;±âÈĺ¯È­;Ãà¼Ò±â¹ý;¼ö¹®¿ä¼Ò;SLURP;Land Use Change;Climate Change;GCMs;Downscaling;Hydrologic components;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.1, 2009³â, pp.33-50
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200904751484421)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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