Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Metop Atmospheric composition Land Data Sentinel Tags GOME-2 Metop-B Metop Sentinel-3 IASI Metop-A Europe Asia S America Date 2020 2019 SHOW ALL Sort by Start Date Order Ascending Descending 2 results 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 19 August 2019 23:02 UTC–21 August 01:02 UTC The chemical fingerprint of Amazonian fires Observations of formaldehyde Metop-B GOME-2 instrument on 19-20 August 2019.