Modern-Era Retrospective Analysis for Research and Applications Global Modeling Initiative I

MERRA-2 GMI is a simulation for the atmospheric composition community, driven by MERRA-2 winds, temperature, and pressure and coupled to the Global Modeling Initiative's (GMI) stratosphere-troposphere chemical mechanism run at ~50 km horizontal resolution and output onto the native MERRA-2 grid (0.625o lon x 0.5o lat). It is part of a joint collaboration between the Atmospheric Chemistry and Dynamics Laboratory (ACDL) and the Goddard Modeling and Data Assimilation Office (GMAO) at NASA Goddard Space Flight Center.