The solution to the transport equations at different points in time, for the fiducial model parameters listed in Table 1. At t = 10⁵yr, approximately 90% of the steady-state peak in the ice surface density has formed. a) Surface densities Σ of ice (solid lines) and vapor (dashed lines). The dotted line corresponds to the steady-state advection-only vapor surface density profile. b) Midplane pebbles-to-gas ratio ρ_peb/ρ_gas. c) Typical pebble mass m_p. d) Typical pebble internal density ρ_•,p.