Hydrologic component analysis was conducted to investigate water budget characteristics the Oedocheon watershed, Jeju Island. For this purpose, integrated SWAT-MODFLOW model was applied to this watershed for continuous surface water-groundwater modeling. Pasture and forest-deciduous are the major land use types and these affect general hydrologic component ratio. The spatio-temporal groundwater recharge can be obtained from SWAT and then distributed groundwater recharge can be reproduced by MODFLOW. The groundwater level variation was simulated with distributed groundwater pumping data. The water budget in this watershed was compared with the previous estimated result by Jeju-Do(2013). As this result considered discharge to the coastal side, the discrepancy was found. However, it was found that the overall tendency of both analyses were similar.

Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. SWAT-K모형
  2.2. 외도천의 특성 및 기상자료 구축
  2.3. 공간특성 입력 자료 구축
  2.4. 수리지질 자료 구축
 3. 결과분석
  3.1. 지표수 유출분석
  3.2. 지하수 함양 분석
  3.3. 지하수 유동 분석
  3.4. 통합 물수지 분석
 4. 결 론
 REFERENCE

• 김남원(한국건설기술연구원 수자원 · 하천연구소) | Nam Won Kim (Hydro Science and Eng. Res. Inst. Korea Institute of Civil Eng. and Building Technology)
• 정일문(한국건설기술연구원 수자원 · 하천연구소) | Il-Moon Chung (Hydro Science and Eng. Res. Inst. Korea Institute of Civil Eng. and Building Technology) Corresponding author
• 나한나(한국건설기술연구원 수자원 · 하천연구소) | Hanna Na (Hydro Science and Eng. Res. Inst. Korea Institute of Civil Eng. and Building Technology)