MERRA-2 tavgU_2d_chm_Nx: 2d,diurnal,Time-Averaged,Single-Level,Assimilation,Carbon Monoxide and Ozone Diagnostics 0.625 x 0.5 degree V5.12.4 (M2TUNXCHM) at GES DISC
M2TUNXCHM (or  tavgU_2d_chm_Nx) is a time-averaged 2-dimensional monthly diurnal means data collection in Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2).  This collection consists of assimilated carbon monoxide and ozone diagnostics, such as properties of carbon monoxide (column …