The influence of future changes in springtime Arctic ozone on stratospheric and surface climate ...

• Main Authors: Chiodo, Gabriel, Friedel, Marina, Seeber, Svenja, Domeisen, Daniela, Stenke, Andrea, Sukhodolov, Timofei, Zilker, Franziska
• Format: Article in Journal/Newspaper
• Language: English
• Published: ETH Zurich 2023
• Subjects: Arctic
• Online Access: https://dx.doi.org/10.3929/ethz-b-000640104; http://hdl.handle.net/20.500.11850/640104

Stratospheric ozone is expected to recover by the mid-century due to the success of the Montreal Protocol in regulating the emission of ozone-depleting substances (ODSs). In the Arctic, ozone abundances are projected to surpass historical levels due to the combined effect of decreasing ODSs and elevated greenhouse gases (GHGs). While long-term changes in stratospheric ozone have been shown to be a major driver of future surface climate in the Southern Hemisphere during summertime, the dynamical and climatic impacts of elevated ozone levels in the Arctic have not been investigated. In this study, we use two chemistry climate models (the SOlar Climate Ozone Links - Max Planck Ocean Model (SOCOL-MPIOM) and the Community Earth System Model - Whole Atmosphere Community Climate Model (CESM-WACCM)) to assess the climatic impacts of future changes in Arctic ozone on stratospheric dynamics and surface climate in the Northern Hemisphere (NH) during the 21st century. Under the high-emission scenario (RCP8.5) examined ... : Atmospheric Chemistry and Physics, 23 (18) ...