APPLICATION OF THE HYPE MODEL FOR KINOKAWA RIVER BASIN AIMING AT WATER AND NUTRIENT RUNOFF ANALYSIS

Abstract

 HYPE(hydrological predictions for the environment) model was applied for Kinokawa river basin in order to evaluate an applicability of HYPE for Japanese watershed. Firstly, a fundamental HYPE in Kinokawa was constructed by using landuse, soil, topology information based on Swedish HYPE. Secondly, a calibration based on Markov Chain Monte Carlo method was performed in order to improve prediction accuracy of Kinokawa river flow rate. Then, point and non-point sources of nitrogen and phosphorus were implemented aming at runoff analysis. According to the comparison of simulated and observed nutrient load, it was shown that the accuracy of nutrient load predicted by HYPE was reasonable. In conclusion, it was suggested that HYPE was available for Japanese watershed aiming at water and nutrient runoff analysis.