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Mean absolute values of ozone bias (in ppbv) relative to the DC‐8 aircraft measurements at 650 hPa for individual phases for the model calculation (blue), reanalysis (red), Atmospheric Infrared Sounder/Ozone Monitoring Instrument (AIRS/OMI) data assimilation (green), and reanalysis with assimilating AIRS/OMI data (orange).
