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Çѱ¹¼öÀÚ¿øÇÐȸ / v.32, no.6, 1999³â, pp.721-730
°ÝÀÚ±â¹ÝÀÇ ÀÏ Áõ¹ß»ê·® ÃßÁ¤¸ðÇü °³¹ß
( GRID-based Daily Evapotranspiration Prediction Model (GRIDET) )
äȿ¼®;±è¼ºÁØ;Á¤°ü¼ö; Çѱ¹¼öÀÚ¿ø°ø»ç ¼öÀÚ¿ø¿¬±¸¼Ò;°Ç±¹´ëÇб³ ³ó°øÇаú;Ãæ³²´ëÇб³ °ø°ú´ëÇÐ;
 
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º» ³í¹®¿¡¼­´Â Morton(1983)ÀÇ º¸¿Ï°ü°è½ÄÀ» ÀÌ¿ëÇÏ¿© Áõ¹ß»ê·®ÀÇ ½Ã.°ø°£Àû ºÐÆ÷ ¾ç»óÀ» °è»êÇÒ ¼ö ÀÖ´Â °ÝÀÚ±â¹ÝÀÇ ÀÏ Áõ¹ß»ê·® ÃßÁ¤ ¸ðÇüÀ» °³¹ßÇÏ¿´´Ù. º» ¸ðÇüÀº C ¾ð¾î·Î °³¹ßµÇ¾úÀ¸¸ç, ASCII ÇüÅÂÀÇ ¼öġǥ°íÀÚ·á¿Í ÅäÁöÇǺ¹µµ°¡ ÀÔ·ÂÀÚ·á·Î ÀÌ¿ëµÇ¾î À¯¿ª¿¡ ´ëÇÑ ÀÏ Áõ¹ß»ê·®À» °è»êÇÏ°Ô µÈ´Ù. ¶ÇÇÑ, Áõ¹ß»ê·®¿¡ ´ëÇÑ ½Ã°£Àû º¯È­ ¾ç»ó°ú °ø°£Àû ºÐÆ÷ ¾ç»óÀ» GRASS¿¡¼­ ³ªÅ¸³¾ ¼ö ÀÖµµ·Ï ±¸¼ºÇÏ¿´´Ù. ¸ðÇüÀÇ Àû¿ë¼º °ËÁõÀ» À§Çؼ­ ´ëû´ï »ó·ùÁö¿ª¿¡ À§Ä¡ÇÑ º¸Ã»ÃµÀÇ ÀϺΠÁö¿ª(76.5$ extrm{km}^2$)¿¡ ´ëÇØ¼­ Àû¿ëÇÏ¿´´Ù. Àû¿ë°á°ú, º¸Ã»Ãµ À¯¿ªÀÇ ÀÌÆò±³ ÁöÁ¡¿¡¼­ 1995³âµµ Áõ¹ß»ê¶ûÀº 766.1mm·Î ³ªÅ¸³µÀ¸¸ç, °æ»ç¸é°ú ¸éÀû¿¡ ´ëÇÑ Àϻ緮 º¸Á¤ ÈÄ ¾à22%°¡ Áõ°¡ ÇÏ´Â °ÍÀ¸·Î ³ªÅ¸³µ´Ù.
A Grid-based daily evapotranspiration(ET) prediction model which calculates temporal and spatial ET with a complementary relationship of Morton(1983) was developed. The model was programmed by C-language and uses ASCII formatted map data of DEM(Digital Elevation Model) and land use. Daily ET within the watershed is calculated and the results of temporal variations and spatial distributions of ET are presented by using GRASS(Geographic Resources Analysis Support System). To verify the applicability of the model, it was applied to the part of Bocheong stream basin (76.5$ extrm{km}^2$) located in the upstream of Dacheong Dam watershed. The result shows that the estimated evapotranspiration in 1995 was 766.1mm and 22% increased after correction radiation for slope and area.
 
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Áõ¹ß»ê;°ÝÀÚ±â¹Ý;¼öġǥ°íÀÚ·á;Áö¸®Á¤º¸½Ã½ºÅÛ;evapotranspiration;grid-based;DEM;GIS;GRASS;
 
Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.32, no.6, 1999³â, pp.721-730
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911920063426)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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