Global daily IFS-COMPO atmospheric compossition model simulations (Huijnen et al., 2019; https://doi.org/10.5194/gmd-12-1725-2019) of carbon monoxide total columns (CO-TC) for August and September 2024. IFS-COMPO model resolution is 0.5 degrees. Model CO-TCs are collocated with Sentinel-5p CO-TCs which are resampled and averaged onto the IFS-COMPO model grid provided that at least 50% of the model grid is covered by Sentinel-5p CO-TC data (Douros et al., 2023; https://doi.org/10.5194/GMD-16-509-2023). Files include IFS-COMPO CO-TCs with and without applying the Sentinel-5p CO averaging kernel, the associated resampled and averaged Sentinel-5p CO-TCs and the differences between IFS-COMPO CO-TC (with averaging kernel) and Sentinel-5p CO-TC (data array names: model_kernel, model_ref, retrieval, retrieval_min_model_kernel). Note that GFA and TUD emission data can be found at www.sense4fire.eu, GFAS emission data via the COPERNICUS Data Store https://ads.atmosphere.copernicus.eu/datasets/cams-global-fire-emissions-gfas · daily NetCDF files · August and September 2024 · 0.5° degree spatial resolution The NetCDF files variables · lon longitude in degrees East · lat latitude in degrees North · model_kernel CO modelled total column, modified with S5p averaging kernel · model_ref CO modelled total column, NO kernel application (“reference”) · retrieval CO total column (S5p retrievals) · retrieval_min_model_kernel CO total column difference between total S5p and IFS-COMPO (S5p averaging kernel applied) · time YYYY-MM-DD Each tar file below consists of two months of daily collocated CIFS (= IFS-COMPO) model output for four model simulations runs identifiable with a unique identifiers: TROPOMIvsCIFS_b2jj_CO_2024_08_09_daily.tar TROPOMIvsCIFS_b2ld_CO_2024_08_09_daily.tar TROPOMIvsCIFS_b2mk_CO_2024_08_09_daily.tar TROPOMIvsCIFS_b2my_CO_2024_08_09_daily.tar* b2jj GFASv1.4 near real time emissions b2ld S4F-GFA b2mk S4F-GFA Amazon August-September 2024 factor 1.5 north of 15S b2my TUD-S4F August-September 2024