Olivia E Clifton, Donna Schwede, Christian Hogrefe, Jesse O Bash, Sam Bland, Philip Cheung, Mhairi Coyle, Lisa Emberson, Johannes Flemming, Erick Fredj, Stefano Galmarini, Laurens Ganzeveld, Orestis Gazetas, Ignacio Goded, Christopher D Holmes, László Horváth, Vincent Huijnen, Qian Li, Paul A Makar, Ivan Mammarella, Giovanni Manca, J William Munger, Juan L Pérez-Camanyo, Jonathan Pleim, Limei Ran, Roberto San Jose, Sam J Silva, Ralf Staebler, Shihan Sun, Amos P K Tai, Eran Tas, Timo Vesala, Tamás Weidinger, Zhiyong Wu, Leiming Zhang
A primary sink of air pollutants and their precursors is dry deposition. Dry deposition estimates differ across chemical transport models, yet an understanding of the model spread is incomplete. Here, we introduce Activity 2 of the Air Quality Model Evaluation International Initiative Phase 4 (AQMEII4). We examine 18 dry deposition schemes from regional and global chemical transport models as well as standalone models used for impact assessments or process understanding. We configure the schemes as single-point models at eight Northern Hemisphere locations with observed ozone fluxes...
September 6, 2023: Atmospheric Chemistry and Physics