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 Tags SEVIRI Europe GOME-2 MSG Africa IASI Metop-A Metop-B Date 2014 Date February April SHOW ALL Sort by Start Date Order Ascending Descending 3 results 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 27 February 2014 00:00 UTC to 2 March 20:00 UTC Cyclone transports dust across Mediterranean Sea to Turkey A deep trough over northern Africa triggered a major dust outbreak in Feb 2014. Case study 19 February 2014 00:00 UTC Coloured snow and rain over parts of Europe Cloud of dust from Tunisia brought coloured snow to Italy & rain to other parts of Europe.