Operational GEM-MACH model evaluation against air quality surface observation networks across Canada and the United States for 2013-16 and 2021/22

Surface model-observation CSV files are archived for years 2013 to 2016 (gem-mach_2013-16_v1.tar.gz) and 1 June 2021 to 31 May 2022 (gem-mach_2021-22_v1.tar.gz). File name descriptions are provided in gem-mach_file_naming_conventions_v1.pdf. This evaluation is discussed in the following paper: Moran, M. D., Lupu, A., Savic-Jovcic, V., Zhang, J., Zheng, Q., Boutzis, E. I., Mashayekhi, R., Stroud, C., Ménard, S., Chen, J., Menelaou, K., Munoz-Alpizar, R., Kornic, D., and Manseau, P. M.: Operational chemical weather forecasting with the ECCC Regional Air Quality Deterministic Prediction System version 023 (RAQDPS023) – Part 2: Prospective and retrospective performance evaluations, Geosci. Model Dev. (under review), 2025.