1/2 The latest #Ozone analysis from @CopernicusECMWF #AtmosphereMonitoring Service @ECMWF for 21 April shows that O3 values over Svalbard are about 200 DU higher today than they were a week ago as O3-rich air is being transported north. pic.twitter.com/X9PPxIbNP8

— Antje Inness (@AntjeInness) April 21, 2020