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 Weather Data Meteosat Metop Sentinel Tags MSG IASI Europe GOME-2 SEVIRI Atmosphere Metop-C Metop-A Metop-B North America, Central America & Caribbean GOES Date 2020 2014 2004 SHOW ALL Sort by Start Date Order Ascending Descending 3 results Case study 15 August-22 September 2020 Impact of California 2020 fires on atmospheric composition Using satellite data to investigate the atmospheric impact of the 2020 California fires. Case study 1 April 02:56 UTC–2 April 2014 02:58 High air pollution in parts of Western Europe Metop GOME-2 observed elevated levels of NO2 total column concentration over Europe. Case study 21 May 2011 00:00 UTC and 2 November 2004 00:00 UTC Grimsvötn volcanic ash and SO2 plumes EUMETSAT satellites follow Grímsvötn volcanic ash and sulphur dioxide plumes.