지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Much attention has been needed in water resource management at the watershed due to drought and flooding issues caused by climate change in recent years. Increase in air temperature and changes in precipitation patterns due to climate change are affecting hydrologic cycles, such as evaporation and soil moisture. Thus, these phenomena result in increased runoff at the watershed. The Soil and Water Assessment Tool (SWAT) model has been used to evaluate rainfall-runoff at the watershed reflecting effects on hydrology of various weather data such as rainfall, temperature, humidity, solar radiation, wind speed. For bias-correction of RCP data, at least 30 year data are needed. However, for most gaging stations, only precipitation data have been recorded and very little stations have recorded other weather data. In addition, the RCP scenario does not provide all weather data for the SWAT model. In this study, two scenarios were made to evaluate whether it would be possible to estimate streamflow using measured precipitation and long-term average values of other weather data required for running the SWAT. With measured long-term weather data (scenario 1) and with long-term average values of weather data except precipitation (scenario 2), the estimate streamflow values were almost the same with NSE value of 0.99. Increase/decrease by ${\pm}2%$, ${\pm}4%$ in temperature and humidity data did not affect streamflow. Thus, the RCP precipitation data for Hongcheon watershed were bias-corrected with measured long-term precipitation data to evaluate effects of climate change on streamflow. The results revealed that estimated streamflow for 2055s was the greatest among data for 2025s, 2055s, and 2085s. However, estimated streamflow for 2085s decreased by 9%. In addition, streamflow for Spring would be expected to increase compared with current data and streamflow for Summer will be decreased with RCP data. The results obtained in this study indicate that the streamflow could be estimated with long-term precipitation data only and effects of climate change could be evaluated using precipitation data as shown in this study.
목차
등록된 정보가 없습니다.
참고문헌 (26)
참고문헌 신청
Alcamo, J. / 1997 / Global Change and Global Scenarios of Water Use and Availability: An Application of WaterGAP1.0 :1~47
Arnold, J. G. / 1992 / Spatial Scale Variability in Model Development and Parameterization
Arnold, J. G. / 1998 / Large Area Hydrologic Modeling and Assessment: Part I: Model Development / Journal of American Water Resources Association 34(1):73~89
Beasely, D. B. / 1980 / ANS-WERS - A Model for Watershed Planning / Transactions of the ASAE 23:938~939
Bichnell, B. R. / 2001 / Hydrologic Simulation Program - Fortran (HSPF) User's Manual for Version 12. U.S. Environmental Protection Agency / National Exposure Research Laboratory :1~843
Arnold, J. G. / 1992 / Spatial Scale Variability in Model Development and Parameterization
Arnold, J. G. / 1998 / Large Area Hydrologic Modeling and Assessment: Part I: Model Development / Journal of American Water Resources Association 34(1):73~89
Beasely, D. B. / 1980 / ANS-WERS - A Model for Watershed Planning / Transactions of the ASAE 23:938~939
Bichnell, B. R. / 2001 / Hydrologic Simulation Program - Fortran (HSPF) User's Manual for Version 12. U.S. Environmental Protection Agency / National Exposure Research Laboratory :1~843
이 논문의 저자 정보
최근 본 자료
댓글(0)
0