Inversion of Stokes profiles in hydrostatic equilibrium for different values of the gas pressure top boundary condition, P_g(z_max = 2048 km). Left column: Stokes parameters, from top to bottom, I, Q, U, and V, for the simulated case, 𝕀^syn(λ) (solid-black lines), the inversion with dyn cm⁻² (, solid red lines) and the inversion with dyn cm⁻² (, dash blue lines). Middle column: thermodynamic parameters used for the simulated data (X^syn(z)) together with the ones obtained for each inversion ( and , following the same color code). Right column: same thermodynamic parameters (, , and ), but setting a common height origin for the three cases h(τ₅ = 1)=1000 km. In the upper-center and -right panels we include horizontal lines with ticks for, from left to right, the heights at which lgτ₅ = 0, −1, −2, −3 for each atmosphere (following the same color code).