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MERRA-2 tavgC_3d_ltm_Np: 3d, Long Term Mean 3-Dimensional Meteorological Fields V1 (M2TCNPLTM) at GES DISC

The Modern Era Retrospective analysis for Research and Applications, Version 2 (MERRA-2) contains a wealth of information that can be used for weather and climate studies. By combining the assimilation of observations with a frozen version of the Goddard Earth Observing System (GEOS), a global analysis is produced at an hourly temporal resolution spanning from January 1980 through present (Gelaro et al., 2017). It can be difficult to parse through a multidecadal dataset such as MERRA-2 to evaluate the interannual variability of weather that occurs on a daily timescale, let alone determine the occurrence of an extreme weather event. This data collection is a climatological long term mean and standard deviation representing the interannual variability on a monthly timescale. Find the product File Specific, Readme, References, and data tools under "Documentation" tab. Sign up for the MERRA-2 mailing list to receive announcements on the latest data information, tools and services that become available, data announcements from GMAO MERRA-2 project and more! Contact the GES DISC User Services ( to be added to the list.

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