Sediment flux from the morphodynamics of elongating linear dunes Antoine Lucas, Cl ´ ement Narteau, S´ ebastien Rodriguez, Olivier Rozier, Yann Callot, Amandine Garcia, Sylvain Courrech du Pont September 14, 2015 Supplementary Information Contents 1 Field measurements in the Fachi-Bilma erg (1976) 2 2 Imagery analysis over the Fachi-Bilma erg from 1957 to 2014 5 3 Modeling linear dune growth and sediment flux assessment 13 1 GSA Data Repository 2015346