Monitoring atmospheric composition & climate
International day for the preservation of the ozone layer

Antarctic_2003-2011_14Sept.pngOn 16 September, the world celebrates the International Day for the Preservation of the Ozone Layer and the benefits brought about by the Montreal Protocol 24 years ago. The stratospheric ozone service of MACC ( aims at monitoring stratospheric ozone and the chemical substances that destroy it in real time with networks of ground-based instruments, satellites and forecasting models. MACC is following the evolution of the ozone hole year after year, both over the Arctic and over the Antarctic. To illustrate its evolution this year and compare it with previous years, MACC partner BIRA-IASB has put together an animation showing the amount of ozone day after day during the months of August and September for the years 2003 till 2011 using the output of the near-real-time forecasting system of MACC, IFS-MOZART. For more information see our dedicated stratospheric ozone pages.