Observations and retrievals of volcanic ash clouds using ground- and satallite-based sensors

Mereu, Luigi; Scollo, Simona; Bonadonna, Costanza; Corradini, Stefano; Donnadieu, Franck; Montopoli, Mario; Vulpiani, Gianfranco; Barsotti, Sara; Freret-Lorgeril, Valentin; Gudmundsson, Magnús Tumi; Kylling, Arve; Ripepe, Maurizio