CAJ | 학술논문

To investigate the performance of fully- and semi-distributed hydrologic models in simulating the process of transforma- tion from rainfall to runoff in mountain areas, the fully-distributed models Basin Pollution Calculation Center (BPCC) and HEC- HMS are calibrated for the Zhenjiangguan watershed located in the upper stream of Minjiang River Southwest China using stream- flow observations at the basin outlet. Semi-automatical optimization method is implemented to both models to improve simulated re- sults by removing artificial errors. Based on the consistency of the simulated hydrographs with the observed ones, the statistical coe- fficients such as the relative error, the probability distribution and the correlation coefficient, are further introduced to evaluate qua- ntitatively the performance of the two models. Analyses indicate that the hydrographs simulated by the BPCC are relatively closer to the observed ones than those simulated by the HEC-HMS in view of the spatial heterogeneity in terrain, soil texture, land cover and meteorological conditions in mountain areas.