Several thousands of ozone vertical profiles collected in the course of the MOZAIC programme (Measurements of Ozone. Water Vapour. Carbon Monoxide and Nitrogen Oxides by In-Service Airbus Aircraft) from August 1994 to February 2002 are investigated to bring out climatological and interannual variability aspects. The study is centred on the most frequently visited MOZAIC airports. https://chefesquipmenters.shop/product-category/merchandising-display-refrigerators/