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 Metop Weather Meteosat Sentinel Tags GOME-2 IASI Metop-B MSG OLCI SEVIRI Sentinel-3 Metop-C Metop-A Metop Europe Asia GOES Date 2021 2020 2014 SHOW ALL Sort by Start Date Order Ascending Descending 3 results Case study 9-12 April 2021 Major eruption of La Soufrière volcano Major eruption of the Caribbean volcano La Soufrière in early April 2021. Case study Jan, Feb, March 2007-2020 Pollution levels drop during COVID-19 lockdown The COVID-19 lockdown in early 2020 had a visible effect on pollution. 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.