Running SWY 3.9.0 and 3.9.1_post464, I tried to calibrate modeled to observed (seperated) quickflow for a sub-watershed in my area of interest but calculated mean monthly QF [m³/s] did not change at all when trying values from 0 to 1 for beta_i (also tried TWI of 6.86, AOI average) and gamma, but resulted in slightly lower qf-values for trying advanced modus (monthly alpha table and climate zones) - btw mod_qf and obs_qf are fairly similar being in the same order of magnitude yet not close to observed-seperated quickflow values.
- One issue I encountered, that while in the handbook it states that beta_i can be used to apply calculated Topographic Wetness Index (TWI) which for me resulted in 6.86 but I can only enter values [0,1] (same for gamma [0,1] allowed only)!?
- Any idea why no changes in quickflow values occured when changing beta_i or/and gamma values?
I would be glad for assistance/advice, I tried 14 different parameter combinations and dont know further…