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Çѱ¹¼öÀÚ¿øÇÐȸ / v.42, no.1, 2009³â, pp.9-19
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SWAT-MODFLOW °áÇÕ¸ðÇüÀÇ Åä¾ç¼ö-ÁöÇϼö ¿¬°á¼º °³¼±
( Enhancement of Coupling between Soil Water and Groundwater in Integrated SWAT-MODFLOW Model ) |
| ±è³²¿ø;ÀÌÁ¤¿ì;Á¤ÀϹ®;¿øÀ¯½Â; Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼ö¹®¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼ö¹®¿¬±¸½Ç;Çѱ¹°Ç¼³±â¼ú¿¬±¸¿ø ¼ö¹®¿¬±¸½Ç;±¹ÅäÇØ¾çºÎ ÇѰȫ¼öÅëÁ¦¼Ò ÇÏõÁ¤º¸¼¾ÅÍ;
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| º» ¿¬±¸´Â ÁöÇϼöÀ§ÀÇ ½Ã°£ÀûÀÎ º¯È°¡ ÁöÇ¥¼ö À¯Ãâ, Áõ¹ß»ê, Åä¾ç ¼öºÐ µî ´Ù¸¥ ¼ö¹®¼ººÐ¿¡ ¹ÌÄ¡´Â °³º°Àû ¿µÇâÀ» Æò°¡ÇÑ °ÍÀÌ´Ù. À̸¦ À§ÇÏ¿© ±â °³¹ßµÈ ¿ÏÀü¿¬µ¿Çü ÁöÇ¥¼ö-ÁöÇϼö ÅëÇÕ¸ðÇüÀÎ SWAT-MODFLOW ¸ðÇü¿¡¼ Åä¾çÃþÀÇ ¼öºÐ°ú ¾èÀº ´ë¼öÃþÀÇ ÁöÇϼöÀÇ °áÇÕ°úÁ¤À» »õ·Ó°Ô °³¼±ÇÏ¿© Åä¾ç¼öºÐ°ú ÁöÇϼö°£ÀÇ º¸´Ù Çö½ÇÀûÀÎ »óÈ£ÀÛ¿ëÀÌ °¡´ÉÇϵµ·Ï °¡º¯ Åä¾çÃþ ±¸Á¶ ±â¹ý(The variable soil layer construction technique, VSLT)À» °³¹ß, SWAT-MODFLOW¿¡ žÀç½ÃÄ×´Ù. ÀÌ ±â¹ý¿¡¼´Â ¸ðÀÇµÈ ÁöÇϼöÀ§°¡ Åä¾ç ¿µ¿ª³»·Î »ó½ÂÇϸé, Åä¾çÃþ ¾Æ·¡ÀÇ ÁöÇϼöÀ§¸¦ ¾èÀº ´ë¼öÃþÀÇ ÀϺηΠ°£ÁÖÇÔÀ¸·Î½á ÇØ´çÇÏ´Â Åä¾çÃþµéÀÌ Ãʱ⿡ Á¤ÀÇµÈ Åä¾ç ¿µ¿ª¿¡¼ ¹èÁ¦µÇ¾î MODFLOW¸ðÇüÀÇ Áö¹è¸¦ ¹Þ°Ô µÈ´Ù. ¹«½Éõ À¯¿ª¿¡ ´ëÇÑ ½ÃÇè Àû¿ëÀ» ÅëÇØ º» ¿¬±¸¿¡¼ VSLT¸¦ °í·ÁÇÏ¿© °³¼±ÇÑ SWAT-MODFLOW ¸ðÇüÀº Åä¾çÃþ³» ÁöÇϼöÀ§ÀÇ º¯µ¿ ¿µÇâÀ» º¸´Ù Çö½ÇÀûÀ¸·Î °í·ÁÇÒ ¼ö ÀÖÀ» »Ó ¾Æ´Ï¶ó ÁöÇϼöÀ§ º¯µ¿¿¡ µû¸¥ ÁöÇ¥¸é À¯Ãâ, Åä¾ç¼öºÐ, Áõ¹ß»ê µî ¼ö¹®¼ººÐÀÇ °ø°£ºÐÆ÷¿¡ ¹ÌÄ¡´Â ¿µÇâÀÇ Á¤·®Àû Æò°¡¿¡µµ Ȱ¿ëÀÌ °¡´É ÇÒ °ÍÀ¸·Î ÆÇ´ÜµÈ´Ù. |
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| This study presents the effects of temporally varied groundwater table on hydrological components such as surface runoff, evapotranspiration, and soil water content. To this end, the SWAT-MODFLOW model in which the groundwater module of SWAT is replaced with MODFLOW model has been used with a modification to enhance the coupling between the water content in soil profile and the groundwater in shallow aquifer. The variable soil layer construction technique (VSLT) is developed in the present work to represent the direct interaction of soil water and groundwater more realistically, and then the VSLT is incorporated into SWAT-MODFLOW model. In VSLT, when the simulated groundwater table rises within the soil zone, the soil layers below the water table is regarded as a portion of the shallow aquifer, so that those layers are excluded from the initially defined soil zone and are governed by the MODFLOW. From the simulation tests for the Musim river basin, the improved SWAT-MODFLOW model with VSLT is found to correctly evaluate the spatial distributions of overland flow, soil moisture, evapotranspiration according to the groundwater table variation. |
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| Ű¿öµå |
| °¡º¯ Åä¾çÃþ ±¸Á¶ ±â¹ý;Åä¾ç¼ö-ÁöÇϼö »óÈ£ÀÛ¿ë;hydrological components;SWAT-MODFLOW;interaction of soil water and groundwater;VSLT; |
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Çѱ¹¼öÀÚ¿øÇÐȸ³í¹®Áý / v.42, no.1, 2009³â, pp.9-19
Çѱ¹¼öÀÚ¿øÇÐȸ
ISSN : 1226-6280
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200904751484416)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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