Complex refractive indices and single scattering albedo of global dust 1 aerosols in the shortwave spectrum and relationship to size and iron content 2 and size 3

1 LISA, UMR CNRS 7583, Université Paris‒Est‒Créteil, Université de Paris, Institut Pierre Simon La7 place (IPSL), Créteil, France 8 Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), UMR7583, CNRS, Université Pa9 ris Est Créteil et Université Paris Diderot, Institut Pierre et Simon Laplace, Créteil, France 10 2 Laboratoire des Sciences du Climat et de l’Environnement, CEA CNRS UVSQ UP Saclay, 91191, Gif 11 sur Yvette, France 12 3 PM_TEN srl, Piazza della Vittoria 7/14, 16121, Genoa, Italy 13 4 Plateforme RX UFR de chimie, Université Paris Diderot, Paris, France 14 5 Max Planck Institute for Chemistry, P.O. Box 3060, 55020, Mainz, GermanyBiogeochemistry Depart15 ment, Max Planck Institute for Chemistry, P.O. box 3060, 55020, Mainz, Germany 16 6 Geology and Geophysics Department, King Saud University, Riyadh, Saudi Arabia 17 7 Institut für Angewandte Geowissenschaften, Technische Universität Darmstadt, Schnittspahnstr. 9, 18 64287 Darmstadt, Germany 19 8 Science Ddepartment, College of Basic Education, Public Authority for Applied Education and Train20 ing, Al-‒Ardeya, Kuwait 21 9 Climatology Research Group, Unit for Environmental Science and Management, North-‒West Univer22 sity, Potchefstroom, South Africa 23 10 Walden University, Minneapolis, Minnesota, USA 24 11 Parsons Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA 25 26 Correspondence to: C. Di Biagio (claudia.dibiagio@lisa.u-‒pec.fr) 27 28 29