Radial profiles of the passive run. (a): vertically-integrated surface density of total gas, ice, silicate and vapor. The grey line shows the expected vapor surface density from the unperturbed viscous solution (Equation (2)), where f_i/g is the ice-to-gas flux ratio. The blue shade denotes the region that contains M_ice. (b): the solid/vapor-to-gas ratio in the midplane. The positions of peak solid-to-gas ratio (r_pk) and the midplane snowline (r_snow,mid) are highlighted; (c): vertically- integrated radial mass fluxes of ice, vapor, water, H-He and silicate, where ℱ_water = ℱ_vap + ℱ_ice. The dashed lines denote the imposed gas (Ṁ_acc) and ice ( f_i/g Ṁ_acc) fluxes, respectively.