Solar abundance analysis using the Liège disk-center atlas. Abundances are shown for analyses using 3D NLTE (orange circles), as well as ⟨ 3D ⟩ models in both LTE (blue squares) and NLTE (black crosses), and 1D models in LTE (magenta diamonds). The average abundance from each analysis is indicated by the horizontal dashed lines. The height of the crosses indicate the statistical uncertainty in measuring the abundance from each line in the solar spectrum. Below, the sensitivity to changes in stellar parameters is shown for each line, indicating the effect of increasing T_eff by 100 K, log g by 0.3 dex, and v_mic by 0.3 km s^-1. Adopting the weights from Scott et al. (2015) and including estimates of systematic uncertainties, the final 3D NLTE abundance is A(Al) = 6.43 ± 0.03.