Continental-Scale Analysis of Atmospheric Deposition Over North America and Europe Using the AQMEII Database

Participants in the Air Quality Model Evaluation International Initiative (AQMEII) have conducted three rounds of model evaluation and intercomparison activities over Europe and North America since 2010, resulting in a large dataset of modeled meteorology, air quality and deposition fields for 2006–2010 that is available to the community for ongoing research on model evaluation. This study presents a brief analysis of some of the deposition fields generated during these past phases of AQMEII, quantifying both model-to-model variability and the level of agreement with available wet deposition measurements. We also discuss potential future AQMEII work focused on evaluating deposition and using modeled deposition fields for applications such as producing maps of estimated total deposition.