Begin Main Content

MERRA is a NASA reanalysis for the satellite era using a major new version of the Goddard Earth Observing System Data Assimilation System Version 5 (GEOS-5). The Project focuses on historical analyses of the hydrological cycle on a broad range of weather and climate time scales and places the NASA EOS suite of observations in a climate context. [ Read More. ]

Sign Up for the MERRA Mailing List

Sign up for the MERRA listserv to receive announcements on the latest data information, tools and services that become available, data announcements from GMAO and more! Contact the GES DISC User Services to be added to the list.

[ CLICK IMAGE BELOW TO ANIMATE ]   ·   [ VIEW LARGE ANIMATION ]   ·   [ STOP ANIMATION ]

This visualization shows the development of the severe President's Day 1979 snow storm. The color contours are the sea level pressure (hPa), the color wind barbs are the surface layer winds (m/s values are colored according to the right side color bar), and total cloud fraction is shaded from black (no cloud) to white (complete cloud cover). This is generated from MERRA data currently available at the GES DISC.

OpenGrADS Recipes for MERRA Data

A collection of "recipes" for working with MERRA data using GrADS is available on the OpenGrADS.org web site. These how-to guides are part of the OpenGrADS "CookBooks".

<< GMAO Projects Page