I'm working on a project in a high-mountain area where I have a reservoir covering more than 4,000 hectares that holds over 20,000 m³ of water.
name conds alts acts
flood_season 5 5 5
var obj obj_num lim_var lim_op lim_const alt1 alt2 alt3 alt4 alt5
vol res 0 pvol * 1.00000 < > - > -
vol res 0 pvol * 1.30000 - < > - -
vol res 0 evol * 1.00000 - - < < >
month null 0 null - 1.00000 - > > < -
month null 0 null - 6.00000 - < < > -
act_typ obj obj_num name option const const2 fp outcome
release res 0 below_principal rate 0.20000 0.00000 null y n n n n
release res 0 non_flood<1.3 rate 10.00000 0.00000 pvol n y n n n
release res 0 non_flood>1.3 rate 30.00000 0.00000 pvol n n y n n
release res 0 flood rate 45.00000 0.00000 pvol n n n y n
release res 0 over_emergency rate 85.00000 0.00000 evol n n n n y
However, we're seeing discrepancies in the first few decades of the simulation compared to what was observed and simulated during the months of low inflow.

Is it possible to improve the simulation to resolve the issue? How could this be done?