• Study of the seasonal ozone variations at European high latitudes 

      Werner, R.; Stebel, Kerstin; Hansen, Georg Heinrich; Hoppe, Ulf-Peter; Gausa, Michael; Kivi, R.; Gathen, P. von der; Orsolini, Yvan; Kilifarska, N. (Journal article; Peer reviewed, 2011)
      The geographic area at high latitudes beyond the polar circle is characterized with long darkness during the winter (polar night) and with a long summertime insolation (polar day). Consequentially, the polar vortex is ...