Steady state density structure of all simulated disk (as listed in Table 1). The dark green line denotes the boundary where ρ_p,ice/ρ_g = 10⁻². The region enclosed by the green line filled with blue shading represents the ice density normalized to ρ₀ ≈ 3.4 × 10⁻¹¹ cm g⁻³ (the midplane gas density at r₀ of the unperturbed disk), while the region interior to the snowline indicates the vapor density with red shading. The ice (blue) and vapor (pink) mass fluxes are plotted with streamlines, whose thickness denotes the magnitude of the flux normalized to ρ₀c_s,0. The mass flows in the vertical direction, which are especially vigorous in the active-nqL and active runs, contribute towards an increased pile-up of ice in the snowline region.