National Aeronautics and Space Administration

Documentation

• MERRA-2 Overview: The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2), Ronald Gelaro, et al., 2017, J. Clim., doi: 10.1175/JCLI-D-16-0758.1
• The American Meteorological Society has a special collection of articles relevant to MERRA-2. This collection, coordinated by Mike Bosilovich, is available at http://journals.ametsoc.org/collection/MERRA2.
• MERRA-2 File Specification - This document has a comprehensive list of datasets available, as well as description of the horizontal and vertical grids.
• File Specification for MERRA-2 Climate Statistics Products - This document describes the gridded climate statistics files produced using output from the MERRA-2 reanalysis.
• Supplementary Description of Differences between ANA and ASM Data Collections.
• These GMAO Technical Memoranda evaluate different aspects of the MERRA-2 system:
  • #43, Bosilovich et al. – MERRA-2: Initial Evaluation of the Climate
  • #45, Randles et al. – The MERRA-2 Aerosol Assimilation
  • #46, McCarty et al. – MERRA-2 Input Observations: Summary and Assessment
• These GMAO Technical Memoranda document aspects of the MERRA-2 system:
  • Description of the observation corrected precipitation process used in MERRA-2:
    Reichle, R., Q. Liu, R. Koster, C. Draper, S. Mahanama, and G. Partyka, 2017. Land Surface Precipitation in MERRA-2. J. Clim. doi:10.1175/JCLI-D-16-0570.1 Link.
  • Description of the GEOS-5 model changes between the MERRA and MERRA-2 systems: Molod, A., Takacs, L., Suarez, M., and Bacmeister, J., 2015: Development of the GEOS-5 atmospheric general circulation model: evolution from MERRA to MERRA2, Geosci. Model Dev., 8, 1339-1356, doi:10.5194/gmd-8-1339-2015. Link.
  • Description of the mass constraint used in MERRA-2:
    Takacs, L. L., M. Suarez, and R. Todling, 2015. Maintaining Atmospheric Mass and Water Balance Within Reanalysis. NASA/TM–2014-104606, Vol. 37 Document.