Radial proflies of the surface density (panel a), the temperature (panel b) and the pressure scale height (panel c) within 1 AU for one representative point in time each during the TI development in the MREF* and M3* models. In panel a, dashed lines represent the gas surface density, Σ_g, solid lines show the dust surface density, Σ_d, and the dotted lines depict the respective fits to the dust surface density, Σ_d,fit, in the high-state region, evaluated with Eq. (25). Σ_d and E_d,fit are multiplied by 1000 to compensate for the baseline dust-to-gas mass ratio ƒ₀ and make the values comparable to Σ_g. The solid lines in panel b correspond to the midplane temperature, while the dashed lines represent the dust sublimation temperature.