Aspect ratio as a function of orbital distance for the discs with high α-viscosity values (top left), namely α = 10⁻², 5 × 10⁻³ and low α-viscosity values (bottom left), namely α = 10⁻³,  5 × 10⁻⁴ and 5 ×10⁻⁴, for the two grain size distributions (BOD in dark blue, MRN in reddish pink). The iceline moves inwards as α decreases, due to reduced viscous heating. The wiggles that can be seen in parts of the low α discs are caused by convection. Right plots: temperature as a function of orbital distance for the discs with high α-viscosity values (top), namely α = 10⁻², 5 × 10⁻³ and for low α-viscosity values (bottom), namely α = 10⁻³,  5 × 10⁻⁴ and 10⁻⁴.