Polar stratospheric clouds (PSCs) play a key role in polar ozone depletion. In the Arctic. PSCs can occur on the mesoscale due to orographically induced gravity waves. Here we present a detailed study of a mountain wave PSC event on 25-27 January 2000 over Scandinavia. https://parisnaturalfoodes.shop/product-category/age-defying-day-creme/