Fig. 3
From: Volcanic plume measurements using a UAV for the 2014 Mt. Ontake eruption
Flight routes for the campaigns on November 20 and 21, 2014, plotted in the same map as in Fig. 1b. See text for details. Points p–s are position corresponding to the respective times during the SO2 flux flights in Fig. 5a, b. Solid circles A and B correspond to taking off and landing points in Fig. 1b