Intercomparison of desert dust optical depth from satellite measurements - Carboni, E; Thomas, G; Sayer, A; Siddans, R; Poulsen, C; Grainger, R; Ahn, C; Antoine, D; Bevan, S; Braak, R; Brindley, H; DeSouza-Machado, S; et al. (Atmospheric Measurement Techniques, 2012)