Base density profiles for a vertical slice at R ≈ 20 AU: gas in blue (identical values in both plots), total dust (for a_max = 1 mm) in orange and individual dust species used for modelling the wind in grey, according to Sect. 2.1.2. Left: resultsfor a globally ‘fixed’ dust-to-gas ratio of 0.01, and right: for the ‘variable’ dust scale height dependent on a₀. The disk-wind interface (green dotted line) is characterised by a sharp drop-off of both gas and dust densities. This drop-off is particularly pronounced for the ‘fixed’ total dust density at the disk surface, since we have no grains > 11.5 μm in the wind.