Maps of the pressure scaling factor of the planetary boundary condition. The upper panel shows the pressure scaling factor, f_pres along the planet surface, in the case where the value at the antistellar point (φ_p = 180°, θ_p = 90°) is 10% of the value at the substellar point (φ_p = 0,θ_p = 90°). The lower panel shows a slice through the planet, in which the observer is located in the –x and the star in the + x-direction. For models with a lower degree of anisotropy, a similar distribution is used, only with a different minimum value on the night side .