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Çѱ¹¼öÀÚ¿øÇÐȸ / v.38, no.7, 2005³â, pp.517-526
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½Ã°ø°£Àû º¯µ¿¼ºÀ» °í·ÁÇÑ ÁöÇϼö ÇԾ緮ÀÇ ÃßÁ¤ ¹æ¾È
( Method of Estimating Groundwater Recharge with Spatial-Temporal Variability ) |
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In Korea, the methods of estimating groundwater recharge can categorized into two groups. One is baseflow separation method by means of groundurater recession curve, the other is water level fluctuation method by using the data from groundwater monitoring wells. Baseflow separation method is based on annual recharge and lumped concept, and water-table fluctuation method is largely dependent on monitoring wells rather than water budget in watershed. However, groundwater recharge rate shows the spatial-temporal variability due to climatic condition, land use and hydrogeological heterogeneity, these methods have various limits to deal with these characteristics. For this purpose, the method of estimating daily recharge rate with spatial variability based on distributed rainfall-runoff model is suggested in this study. Instead of representative recharge rate of large watershed, the subdivided recharge rate with heterogeneous characteristics can be computed in daily base. The estimated daily recharge rate is an advanced quantity reflecting the heterogeneity of hydrogeology, climatic condition, land use as well as physical behaviour of water in soil layers. Therefore, the newly suggested method could be expected to enhance existing methods. |
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Ű¿öµå |
ÁöÇϼö ÇÔ¾ç;°¿ì-À¯Ãâ¸ðÇü;½Ã°ø°£Àû º¯µ¿¼º;Groundwater recharge;rainfall-runoff model;spatial-temporal variability; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.38, no.7, 2005³â, pp.517-526
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200531234566249)
¾ð¾î : Çѱ¹¾î |
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³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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