Goddard Earth Observing System

High resolution map showing wildfire smoke and desert dust over Africa and the Atlantic, sea salt particles in cyclones over the world ocean and sulphate particle pollution from industrial sites over Europe, North America and China
GEOS-5 simulation depicting the global distribution of atmospheric aerosols: desert dust (orange), sea salt (blue), wildfire smoke (green), and sulfate particles (white)

The Goddard Earth Observing System (GEOS) is an Earth system model and data assimilation system developed at the Global Modeling and Assimilation Office (GMAO) at NASA's Goddard Space Flight Center. The model uses the Earth System Modeling Framework (ESMF), enabling a modular and flexible approach and the investigation of many different aspects of Earth science. In particular, questions related to coupled processes involving the atmosphere, ocean, and/or land have been researched using GEOS. This work spans a range of spatiotemporal scales and include the representation of dynamical, physical, chemical and biological processes.

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