Earth
Rain shadow: why one side of a mountain is dry
Track moist air over a mountain: condensation removes water on ascent and dry warming lowers humidity on descent.
Try this
Follow the air parcel from left to right. Compare temperature and relative humidity before and after the mountain.
The model and its limits
Pseudoadiabatic mountain crossing: condensate is removed on ascent, descent is dry adiabatic. Time is accelerated 180 times. No terrain-scale weather prediction.
Equations used in the module
Equations q_initial = q_vapour + q_precipitated Gamma_d = g / c_p
