1. COVID‐19 Crisis Reduces Free Tropospheric Ozone Across the Northern Hemisphere. Issue 5 (26th February 2021) Authors: Steinbrecht, Wolfgang; Kubistin, Dagmar; Plass‐Dülmer, Christian; Davies, Jonathan; Tarasick, David W.; von der Gathen, Peter; Deckelmann, Holger; Jepsen, Nis; Kivi, Rigel; Lyall, Norrie; Palm, Matthias; Notholt, Justus; Kois, Bogumil; Oelsner, Peter; Allaart, Marc; Piters, Ankie; Gill, Michael; ... Journal: Geophysical research letters Issue: Volume 48:Issue 5(2021) Page Start: n/a Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗