• COVID‐19 Crisis Reduces Free Tropospheric Ozone Across the Northern Hemisphere 

      Steinbrecht, WolfgangORCIDiD; Kubistin, DagmarORCIDiD; Plass‐Dülmer, Christian; Davies, Jonathan; Tarasick, David W.ORCIDiD; Gathen, Peter von derORCIDiD; Deckelmann, HolgerORCIDiD; Jepsen, Nis; Kivi, RigelORCIDiD; Lyall, Norrie; Palm, MatthiasORCIDiD; Notholt, JustusORCIDiD; Kois, BogumilORCIDiD; Oelsner, PeterORCIDiD; Allaart, Marc; Piters, Ankie; Gill, Michael; Van Malderen, RoelandORCIDiD; Delcloo, Andy W.ORCIDiD; Sussmann, Ralf; Mahieu, Emmanuel; Servais, Christian; Romanens, Gonzague; Stübi, ReneORCIDiD; Ancellet, Gerard; Godin‐Beekmann, Sophie; Yamanouchi, ShomaORCIDiD; Strong, KimberlyORCIDiD; Johnson, BryanORCIDiD; Cullis, PatrickORCIDiD; Petropavlovskikh, IrinaORCIDiD; Hannigan, James W.ORCIDiD; Hernandez, Jose‐Luis; Diaz Rodriguez, Ana; Nakano, Tatsumi; Chouza, Fernando; Leblanc, Thierry; Torres, Carlos; Garcia, Omaira; Röhling, Amelie N.; Schneider, MatthiasORCIDiD; Blumenstock, Thomas; Tully, MattORCIDiD; Paton‐Walsh, Clare; Jones, NicholasORCIDiD; Querel, RichardORCIDiD; Strahan, SusanORCIDiD; Stauffer, Ryan M.ORCIDiD; Thompson, Anne M.ORCIDiD; Inness, Antje; Engelen, RichardORCIDiD; Chang, Kai‐Lan; Cooper, Owen R.ORCIDiD (Geophysical Research Letters, 2021-02-26)
      Throughout spring and summer 2020, ozone stations in the northern extratropics recorded unusually low ozone in the free troposphere. From April to August, and from 1 to 8 kilometers altitude, ozone was on average 7% ...