MERRA-2 meteorological re-analysis

This web service, available worldwide thanks to the interactive maps below, delivers time series of Temperature, Relative Humidity, Pressure, Wind speed and direction, Rainfall, Snowfall, Snow depth and Global Horizontal Irradiation (GHI).
Time steps range is from 1min and up to 1month (original data are hourly). Spatial resolution of approx. 50 km. Data are available since Jan. 1980 and are regularly updated with approx. one month of delay.

MERRA-2 was introduced in 2016 to replace the original MERRA dataset because of advances made in assimilation system (MERRA stands for Modern-Era Retrospective analysis for Research and Applications).

You must be logged in and have a running subscription to access the whole dataset. Please contact us at if you need more information.

PS: free access to 2004/2006 data thanks to the MERRA-2 *DEMO* webservice. 


This page is reserved to users who subscribed to Merra service for pay.

You may access for free to our demo service
or contact our sales departement to subscribe to this service.

Merra2 - More informations

Main publication is Gelaro et al. 2017.
In agreement with the recommendations of NASA, please use the following description to cite the data in your publications (don't forget to replace Data, Access, and Date):
Global Modeling and Assimilation Office (GMAO) (2015), MERRA-2 tavg1_2d_slv_Nx: 2d,1-Hourly,Time-Averaged,Single-Level,Assimilation,Single-Level Diagnostics V5.12.4, Greenbelt, MD, USA, Goddard Earth Sciences Data and Information Services Center (GES DISC), Accessed [Data Access Date] DOI:10.5067/VJAFPLI1CSIV

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