hzambran
commented
7 months ago The pbias was not proposed by Moriasi et al. (2007), but rather it was proposed by:
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Yapo, P. O.; Gupta, H. V.; Sorooshian S. (1996). Automatic calibration of conceptual rainfall-runoff models: sensitivity to calibration data. Journal of Hydrology. v181 i1-4. 23-48. doi:10.1016/0022-1694(95)02918-4.
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Sorooshian, S., Q. Duan, and V. K. Gupta. 1993. Calibration of rainfall-runoff models: Application of global optimization to the Sacramento Soil Moisture Accounting Model, Water Resources Research, 29 (4), 1185-1194, doi:10.1029/92WR02617.
The use Qsim - Jobs, which is much easier to interpret that the other way around.
According to Moriasi et al. (2007)-MODEL EVALUATION GUIDELINES FOR SYSTEMATIC QUANTIFICATION OF ACCURACY IN WATERSHED SIMULATIONS, the pbias equation needs to subtract simulated data from observed value. Thank you