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Çѱ¹¼öÀÚ¿øÇÐȸ / v.37, no.6, 2004³â, pp.479-485
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ÀÏ´ÜÀ§ ¿Âµµ¿¡ ±âÃÊÇÑ Áõ¹ß»ê·®ÀÇ »êÁ¤
( Calculation of Evapotranspiration Based on Daily Temperature ) |
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| ÀÌ ¿¬±¸¿¡¼´Â Àϱ³Â÷¸¦ ÀÌ¿ëÇÏ¿© ÀÏÆò±Õ Áõ¹ß»ê·®À» »êÁ¤ÇÑ´Ù. À̸¦ À§ÇÏ¿© Thornton°ú Running(1999)ÀÇ ÀÏÆò±Õ ÅÂ¾ç º¹»ç¿ »êÁ¤À» À§ÇÑ °æÇè½ÄÀ» ÀÌ¿ëÇÏ¿© ž纹»ç¿À» °è»êÇÏ¿© À̸¦ ÇöÀå ÀÚ·á¿Í ºñ±³ÇÑ °á°ú ºñ±³Àû Á¤È®ÇÑ ¹üÀ§ ³»¿¡ ÀÖ´Ù´Â °ÍÀ» È®ÀÎÇÏ¿´´Ù. ÀÌ·¸°Ô »êÁ¤µÈ ÀÏÆò±Õ ÅÂ¾ç º¹»ç¿À» Áõ¹ß»ê·®ÀÇ °è»êÀ» À§ÇØ Priestly Taylor °ø½Ä°ú Penman °ø½Ä¿¡ Àû¿ëÇÔÀ¸·Î½á ÇöÀå¿¡¼ÀÇ Á¤È®¼º°ú »ç¿ë°¡´É¼ºÀ» È®ÀÎÇØ º¸°íÀÚ ÇÏ¿´´Ù. ±× °á°ú·Î ÅÂ¾ç º¹»ç¿¿¡ ÁßÁ¡À» µÐ Priest-Taylor °ø½ÄÀº °ú´ÙÃßÁ¤ÇÏ´Â °æÇâÀ» º¸À̳ª, Penman °ø½ÄÀº ºñ±³Àû Á¤È®ÇÑ Áõ¹ß»ê·®ÀÇ »êÁ¤À» º¸¿© ÁÜÀ¸·Î½á ±â»ó °üÃø ÀÚ·á°¡ dzºÎÇÏÁö ¾ÊÀº Áö¿ª¿¡¼ÀÇ »ç¿ë°¡´É¼ºÀ» º¸¿©ÁÖ¾ú´Ù. ¶Ç °è»êµÈ Áõ¹ß»ê·®À» ÀÏ´ÜÀ§ ¿Âµµ¸¸À» ÀÌ¿ëÇÏ¿© Áõ¹ß»ê·®À» »êÁ¤ÇÏ´Â Hargreaves °ø½Ä°ú ºñ±³ÇÏ¿© °¢ °ø½ÄÀÇ Àå´ÜÁ¡À» °øÇÐÀû Ãø¸é¿¡¼ ¾Ë¾Æº¸°íÀÚ ÇÏ¿´´Ù. |
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| This study presents the calculation of evapotranspiration using estimated daily incoming solar radiation based on maximum daily temperature and minimum daily temperature. The Thornton and Running method(1999) was used to estimate daily incoming solar radiation and then the resulting solar radiation was compared with the measurements. It showed that the estimated daily solar radiation was within reasonable accuracy. In turn, the estimated daily solar radiation was applied to calculate the daily evapotranspiration using the Priestly-Taylor equation and Penman equation and the general results were that evapotranspiration was overestimated in the Priestly-Taylor equation but that Penman was a good estimator with this approach. It is encouraging that it is possible to use this approach, because the required historical data for its estimation are not extensively available and it is not easy to access the meteorological stations in most areas. The calculated eyapotranspiration was compared with that of Hargreaves which was based on daily temperature, and gives us some intuition in terms of engineering. |
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| Ű¿öµå |
| Áõ¹ß»ê·®;ž纹»ç¿;Penman °ø½Ä;Priestly-Taylor °ø½Ä;Hargreaves °ø½Ä;evapotranspiration;solar radiation;Penman equation;Priestly-Taylor equation;Hargreaves equation; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.37, no.6, 2004³â, pp.479-485
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200411922350148)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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