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. While these products emphasize the traditional aspects of weather analysis and forecasting, they have a broader scope that includes aerosols and trace gases. To enhance the quality of these near-real-time products, GMAO conducts research and development activities into atmospheric data assimilation and forecast model development.

GEOS-FP Products
The GEOS "Forward Processing" (FP) system generates analyses, assimilation products, and ten-day forecasts with the most up-to-date validated version of GEOS that is available. The FP system allows GMAO scientists to test their forefront modeling and analysis developments in a near-real-time system.

» See GEOS FP Weather Analyses and Forecasts.
example GEOS WxMap
GEOS-CF: Composition Forecasts
The GEOS "Composition Forecasting" (CF) system generates real-time distributions of atmospheric constituents, including five-day forecasts, with a horizontal resolution of about 25km. The system uses a contemporary atmospheric chemistry module and observation-based emissions estimates to provide a unique dataset for research studies based on NASA’s observations of atmospheric composition.

» Read more about GEOS-CF.

» See GEOS-CF Forecasts.
example GEOS-CF Map
GEOS FP-IT: a stable system to support instrument teams

The GEOS "Forward Processing for Instrument Teams" (FP-IT) system generates analyses and assimilation products, but no forecasts. GEOS FP-IT processing uses a "semi-frozen" GEOS system to ensure long-term continuity and reproducibility, which is a requirement of the main users — the NASA Instrument Teams who use these analyses in their data processing algorithms. Reprocessing of historical periods using the FP-IT system is conducted as needed, in coordination with Instrument Teams.

GEOS product generation uses HEC resources at Goddard Space Flight Center's NASA Center For Climate Simulation (NCCS).