Adjusting to measured snow depths

The simulated snow depth may be adjusted to measured snow depths, ∆z_snow,meas. The correction can be applied either continuously or occasionally (see switch SnowAdjustment). Snow depth observations are then either interpolated to every time step or used as discrete observations.

The amount of water added or subtracted to the snow pack is considered as a precipitation adjustment, P_SnowAdjust:

                          (4.66)

 

 

where the density of the adjusted snow, ρ_snow,adjust, is taken as the density of the precipitation if the snow depth correction is positive and greater than ε_samin m day^-1. Otherwise it is taken as the density of the simulated snow pack.