Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Atmospheric Composition Data Meteosat Metop Tags GOME-2 Meteosat Second Generation (MSG) IASI SEVIRI Africa Metop-A Europe Asia GOES Date 2008 Date August November SHOW ALL Sort by Start Date Order Ascending Descending 2 results Case study 3 November 2008 18:00 UTC EUMETSAT Science Blog Large SO2 plume from Erta Ale volcano Large SO2 plume from Erta Ale crossed the Red Sea towards Yemen in Nov 2008. Case study 14 August 2008 00:00 UTC EUMETSAT Science Blog SO2 plumes from the Kasatochi eruption Sulphur dioxide (SO2) plumes from the Kasatochi eruption circled the whole northern hemisphere over more than 20 days.