GMAO - GMAO FTP

Earth Sciences Division Sciences and Exploration

Reanalysis Long-term, model-based analyses of multiple datasets using a fixed assimilation system are a major focus in the GMAO. Building on the success of the atmospheric reanalyses conducted with GEOS, current research and development activities are directed at producing a major Earth System Reanalysis, including atmosphere, land, ocean, and ice.
Weather Analysis & Prediction To support NASA's satellite missions and field experiments, GMAO generates near-real-time atmospheric products using GEOS and distributes them to a broad community of users.
Seasonal-Decadal Analysis & Prediction GMAO uses coupled Earth-System models and analyses, along with a broad range of satellite observations, to study and predict phenomena that evolve on seasonal to decadal timescales.
Global Mesoscale Modeling Current computing capacity enables GMAO to simulate the entire globe at spatial resolutions previously only possible with regional models. These “global mesoscale model” simulations serve for forefront evaluations of model performance and form the basis for Observing System Simulation Experiments.
Observing System Science GMAO's mission to provide modeling support for NASA's satellite observations encompasses the need to examine the impacts of different observation types in weather and climate prediction. It also requires the ability to simulate potential new observation types, in order to assess their cost benefit, based on their likely impacts on prediction.
Explore

Home
GMAO FTP

gmaoftp
ylim5
s2sv3_usf
20220101
ens4

File Name	File Type	Last Modified	Size	Actions
GEOSS2S3.202201.nc4	NC4	04-03-2026 13:49:00	123.01 MB
GEOSS2S3.202202.nc4	NC4	04-03-2026 13:48:57	111.11 MB

Privacy Policy & Important Notices
NASA's Accessibility Statement
Contact Us
Website Question & Feedback

Responsible NASA Official: Steven Pawson
Web Curator: Thang H Do
Page Last Updated: