Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Satellites Weather Meteosat Metop Atmospheric Composition Tags GOME-2 Meteosat Second Generation (MSG) Metop-A SEVIRI IASI Metop-B Europe Date 2014 SHOW ALL Sort by Start Date Order Ascending Descending 1 result Case study 1 April 02:56 UTC–2 April 2014 02:58 High air pollution in parts of Western Europe On 1 April GOME-2 instruments on Metop-A and -B observed elevated levels of NO2 total column concentration over parts of Europe.