MERRA-2 inst3_2d_gas_Nx: 2d,3-Hourly,Instantaneous,Single-Level,Assimilation,Aerosol Optical Depth Analysis 0.625 x 0.5 degree V5.12.4 (M2I3NXGAS) at GES DISC
M2I3NXGAS (or  inst3_3d_gas_Nx) is an instantaneous 2-dimensional 3-hourly data collection in Modern-Era Retrospective analysis for Research and Applications version 2 (MERRA-2).  This collection consists of assimilation of aerosol optical depth analysis and aerosol optical depth analysis increment.  The data field is …