Gridded data for the AQ-Bench dataset

This is a gridded version of the AQ-Bench variables. The AQ-Bench dataset and its documentation is available via Betancourt et al. (2021): "AQ-Bench: a benchmark dataset for machine learning on global air quality metrics" https://doi.org/10.5194/essd-13-3013-2021. This gridded data is used in the corresponding mapping study by Betancourt et al. 2022: "Global, high-resolution mapping of tropospheric ozone – explainable machine learning and impact of uncertainties ", https://doi.org/10.5194/gmd-15-4331-2022.