African dust source regions for observed dust outbreaks over the Subtropical Eastern North Atlantic region, above 25°N

► New hybrid Lagrangian-Eulerian receptor model for dust sources identification. ► Sources for Marine Boundary Layer of the Subtropical Eastern North Atlantic. ► Two indexes based on simulated dust with DREAM model and on TOMS AI respectively. ► Sahara is the most important dust source. The Bodelé depression has a minor impact. ► A seasonal variability in source areas is found.