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KMID : 1024520130220050515
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Journal of the Environmental Sciences
2013 Volume.22 No. 5 p.515 ~ p.522
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Simulation of Groundwater Variation Characteristics of Hancheon Watershed in Jeju Island using Integrated Hydrologic Modeling
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Kim Nam-Won
Na Han-Na
Chung Il-Moon
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Abstract
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To investigate groundwater variation characteristics in the Hancheon watershed, Jeju Island, an integrated hydrologic component analysis was carried out. For this purpose, SWAT-MODFLOW which is an integrated surface-groundwater model was applied to the watershed for continuous watershed hydrologic analysis as well as groundwater modeling. First, ephemeral stream characteristics of Hancheon watershed can be clearly simulated which is unlikely to be shown by a general watershed hydrologic model. Second, the temporally varied groundwater recharge can be properly obtained from SWAT and then spatially distributed groundwater recharge can be made by MODFLOW. Finally, the groundwater level variation was simulated with distributed groundwater pumping data. Since accurate recharge as well as abstraction can be reflected into the groundwater modeling, more realistic hydrologic component analysis and groundwater modeling could be possible.
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KEYWORD
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Integrated hydrologic analysis, SWAT-MODFLOW, Recharge, Pumping
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