콘텐츠 본문
논문 국내 국내전문학술지(KCI급) 영산강ㆍ섬진강 유역 기저유출 평가 및 유역 특성과 기저유출의 상관성 검토
- 학술지 구분 국내전문학술지(KCI급)
- 게재년월 2025-06
- 저자명 주진철 ㆍ이동휘 ㆍ채경인 ㆍ김수련 ㆍShi Kangwei ㆍ정광욱 ㆍ정인균
- 학술지명 Soil Groundwater Environ
- 발행처명 한국지하수토양환경학회
- 발행국가 국내
- 논문언어 한국어
- 전체저자수 7
- 연구분야 공학 > 환경공학
- 키워드 #Watershed charac- teristics #Parameter sensitivity #Graphical method #Digital filter #Baseflow index (BFI) #Baseflow
논문 초록 (Abstract)
This study evaluated the applicability and reliability of various baseflow separation methods in the Yeongsan and Seomjin watersheds, and investigated the relationship between watershed characteristics and the baseflow index (BFI). Both graphical approaches (HYSEP-FIM, SIM, LMM, UKIH-Min, PART) and digital filter methods (Lyne-Hollick 1·2-Pass, Chapman, CM, Eckhardt, EWMA) were applied to estimate BFI, and their performance was assessed using statistical indicators including NSE, KGE, PBIAS, and RSR. Sensitivity analysis revealed that BFI results were highly dependent on parameter settings, particularly for digital filters, with the Eckhardt method demonstrating the most stable and reliable performance, thus identified as the optimal method. Correlation analyses between watershed characteristics (e.g., area, elevation, slope, land use) and BFI showed statistically significant relationships in some main river reaches, while tributary basins exhibited complex interactions requiring multivariate analysis. These findings provide a methodological foundation for future baseflow estimation, and serve as essential baseline data for watershed-scale hydrologic modeling, ecological flow assessment, and integrated water resources planning.
