For the hydrological sensitivity analysis method, calibration was conducted in all six catchments during each baseline period, and Table 4 lists relevant fitted parameters and calibration results. The fitted n varied between 1.29 and 1.61, reflecting different properties of the six catchments. With sensitivity coefficients β uniformly larger than γ, it reveals that the change in runoff is more sensitive to precipitation than to PET within this region. The calibration results for all catchments are generally satisfactory according to the two criteria (BIAS and CC).

Table 4

Parameters and calibration results for the hydrological sensitivity analysis method

DPLCTGXINHCXXHB
Parameters n 1.38 1.45 1.29 1.61 1.57 1.59
β 0.64 0.65 0.72 0.72 0.64 0.63
γ −0.25 −0.25 −0.37 −0.32 −0.26 −0.27
Calibration CC 0.95 0.94 0.88 0.91 0.9 0.89
Results BIAS (%) −0.97 −0.49 −0.45 −0.17 −0.94 −0.62
DPLCTGXINHCXXHB
Parameters n 1.38 1.45 1.29 1.61 1.57 1.59
β 0.64 0.65 0.72 0.72 0.64 0.63
γ −0.25 −0.25 −0.37 −0.32 −0.26 −0.27
Calibration CC 0.95 0.94 0.88 0.91 0.9 0.89
Results BIAS (%) −0.97 −0.49 −0.45 −0.17 −0.94 −0.62

Close Modal