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초록

This study was carried out to set up a predictive system of water quality in the
Han River watershed by using an Hydrological Simulation Program - Fortran(HSPF)
model. The HSPF model was built using various data types including topographical
data, meteorological data, and hydrological results. The established HSPF model was
then verified and calibrated against water quality(DO, temperature, BOD, T-N, T-P) and
water flow data obtained from the Ministry of Environment(six sites, 2010∼2015). To
evaluate the results of validation and calibration of water quality and water flow, the
percentage difference was used. The water flow results in all sites were classified as
“Very Good” and water quality results were classified as more than “Good”. It was
confirmed that the simulated data well reflected the observed data, and that the
established HSPF model was adequate for simulating watershed characteristics