Fig. 3
From: Rapid emergency assessment of ash and gas hazard for future eruptions at Santorini Volcano, Greece
The directional persistence of low altitude winds exhibited by the datasets used in modelling: ECMWF ERA-Interim (used by TEPHRA2) and NCEP-NCAR (used by VOL-CALPUFF), for two representative 60° sectors: towards the south and towards the southeast