Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Ocean Sentinel Climate Data Metop Tags OLCI Europe Polar ASCAT Sentinel-3 Metop Asia Climate Use Cases Date 2020 2017 SHOW ALL Sort by Start Date Order Ascending Descending 2 results Case study 25 September 2020 13:35 UTC Arctic sea ice minimum 2020 In September 2020 the Arctic sea ice extent shrunk to the second lowest on record. Case study 2 March 2017, 28 April, 7 May, 16 July, 30 July, 11 August and 21 August 2018 Phytoplankton blooms spotted by Sentinel-3 Images of the variety of species of phytoplankton that bloom in the world’s oceans and lakes in 2017 & 2018.