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Çѱ¹¼öÀÚ¿øÇÐȸ / v.26, no.1, 1993³â, pp.51-62
¿¬À¯Ãâ·® ÃßÁ¤¸ðÇüÀÇ °³¼±¹æ¾È
( A Study on the Improvement of Annual Runoff Estimation Model )
ÀÌ»óÈÆ; Á¤È¸¿ø, ¼ö¿ø´ëÇб³ ȯ°æ°øÇаú;
 
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¿¬À¯Ãâ·®¿¡ ¿µÇâÀ» ¹ÌÄ¡´Â °¡Àå Á÷Á¢ÀûÀÎ ÀÎÀÚ´Â °­¼ö·®Àε¥ ȸ±ÍºÐ¼®À» ÀÌ¿ëÇÑ ÀÌÀüÀÇ ¿¬±¸¿¡¼­´Â À¯Ãâ·üÀÌ 20% ¹Ì¸¸ ¶Ç´Â 100% ÀÌ»óÀÎ °æ¿ì¿¡´Â °­¼ö¿Í À¯·®ÀÚ·á´Â ÀÌ»óÁ¡(outlier)À¸·Î¼­ ºÐ¼®¿¡¼­ Á¦¿Ü½ÃŲ °á°ú °­¼ö·®Àº µ¶¸³º¯¼ö·Î¼­ ÀÇÀǰ¡ ¾ø°í ´ë½Å À¯¿ª¸éÀûÀ» Áß¿äÇÑ µ¶¸³º¯¼ö·Î Æ÷ÇÔ½ÃÄ×´Ù. º» ¿¬±¸¿¡¼­´Â À¯Ãâ·ü´ë½Å (¿¬°­¼ö·®-¿¬À¯Ãâ·®)À» ¿¬Áõ¹ß»ê·®ÀÇ ÁÁÀº ÃßÁ¤Ä¡·Î °£ÁÖÇÏ°í ¿ì¸®³ª¶ó¿¡¼­ °¡´ÉÇÑ ¿¬Áõ¹ß»êÀÇ ¹üÀ§¸¦ ¹þ¾î³ª´Â ÀڷḦ Á¦¿Ü½Ã۰í ȸ±ÍºÐ¼®À» ÇÑ °á°ú ¼ö¹®ÇÐÀûÀÎ À̷п¡ ºÎÇÕµÇ¸ç °áÁ¤°è¼ö°¡ ³ôÀº ´ÙÀ½°ú °°Àº ȸ±ÍºÐ¼®½ÄÀ» ¾ò¾ú´Ù. R=-518.25+0.8834P ´Ü, R: À¯Ãâ°í(mm) P: ¿¬°­¼ö·®(mm) ÀÌ È¸±ÍºÐ¼®½ÄÀº cross-validationÀ» °ÅÄ£ °á°ú °è¼ö°¡ ¸Å¿ì ¾ÈÁ¤µÇ¾î À־ ¿ì¸®³ª¶óÀÇ ¹Ì°èÃø Áß¼Ò¼ö°Ô¿¡¼­ »ç¿ëÇÒ ¼ö ÀÖ´Â ÁÁÀº ¿¬À¯Ãâ·® ÃßÁ¤¸ðµ¨·Î¼­ Á¦¾ÈÇÑ´Ù.
The most significant factor in estimating annual runoff must be the precipitation. But in the previous study, the watershed area instead of precitation was included as an independent variable in regression model in the process of checking accurate data. The criterion of accurate data was the runoff ratio in the range of 20% to 100%. In this study the valid range of evapotranspiration was adopted as a criterion of accurate data and the same data were reexamined. It came up with following model which has a high coefficient of determination and conforms to hydrologic theory. R=-518.25+0.8834P where, R: runoff depth(mm) P: precipitation(mm) This regression model was found to be stable by cross-validation and is proposed as annual runoff estimation model applicable to ungaged small and medium watersheds in Korea.
 
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Çѱ¹¼öÀÚ¿øÇÐȸÁö / v.26, no.1, 1993³â, pp.51-62
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1738-9488
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199311920094324)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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