The GMAO Research Site

The Global Modeling and Assimilation Office (GMAO) supports NASA's Earth Science mission. Activities in Earth System modeling and data assimilation aim to maximize the impact of satellite observations on analyses and predictions of the atmosphere, ocean, land and cryosphere.

Science Snapshots
Science Snapshot Archive »
GEOS-S2S-2 Predicts 2024 Mongolia Dzud thumbnail

GEOS-S2S-2 Predicts 2024 Mongolia Dzud

Mongolia saw dangerously low temperatures in February, known locally as a 'dzud.' The GMAO's flagship seasonal and sub-seasonal model saw this weeks in advance.
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March 2024 Sudan Heat Wave Through GEOS-S2S-2 thumbnail

March 2024 Sudan Heat Wave Through GEOS-S2S-2

A heat wave in March 2024 engulfed parts of Africa in temperatures over 45 degrees Celsius. The GEOS-S2S-2 model saw this 3 weeks in advance.
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April 2024 Solar Eclipse - 3-Day Cloud Cover Forecast thumbnail

April 2024 Solar Eclipse - 3-Day Cloud Cover Forecast

The 2024 Solar Eclipse is on April 8! See what the GMAO's weather models predict for the viewing conditions. Spoiler alert: they may not agree with the climatology.
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MJO Propagation and Associated Moist Dynamics in Version 3 of GEOS-S2S Forecast System thumbnail

MJO Propagation and Associated Moist Dynamics in Version 3 of GEOS-S2S Forecast System

The GEOS-S2S Version 3 (GEOS-S2S-3) model is set to replace Version 2. Among the processes better captured with this update are the Madden-Julian Oscillation (MJO). Take a look at the development behind this improvement.
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