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Integrated Modeling
Virtual Institute

A framework for NASA's state-of-the-art Earth system models to advance Earth understanding and deliver actionable insights for societal benefit

globe on black background shows ocean currents flowing on the western sides of the Earth’s oceans.
Watching the Rivers Flow on Greenland
Monthly Terrestrial Water Storage Anomaly over North America from January 2003 through December 2019.

Integrated Modeling Virtual Institute

NASA's state-of-the-art models merge trusted observations and advanced computing power to simulate complex interactions between Earth processes and unlock new understanding of how our planet functions as a unified global system. While satellite data provide a critical view of what is currently happening on Earth, scientists develop and use innovative models to further understand why changes occur, how they affect communities, and what will happen tomorrow, next week, and even in years to come. Users, from government to academia to commercial sectors, rely upon these insights to inform real-world applications and decision-making.

The Integrated Modeling Virtual Institute (IMVI) leverages decades of NASA expertise and capabilities to provide a unified modeling framework, underpinning a more integrated and efficient portfolio of modeling tools and data products. To support NASA's Earth science modeling strategy, IMVI focuses on enhancing interdisciplinary collaboration, strengthening strategic partnerships, and delivering leading-edge products for the agency and society.

Initially, IMVI prioritizes the coordination of activities and complementary strengths across core capabilities, including process models (such as land, atmosphere, ocean, and ice), global Earth system models, and scientific computing. By further building upon NASA's unique leadership in advanced analysis and predictions of the Earth system, IMVI accelerates scientific discovery, drives technological innovation, and maximizes benefits for stakeholders and the public.

Two graphs describing the transition from Independent models to Integrated Models with IMVI The first chart individually lists different models and the systems they are modeling. The second chart is a transition from that to four connected circles with an Earth image in the center creating a Venn Diagram.  The four circles are Atmosphere, Ice, Ocean, and Land- with the inner circle being Earth System and Core Integration.
NASA/GSFC

Advancing Earth understanding through core modeling competencies

NASA's advanced Earth system models are a critical national asset, fusing trusted global observations, disciplinary expertise, and innovative techniques to deliver state-of-the-art tools and data products characterizing the Earth’s past, present, and future. IMVI builds upon this leadership to push new boundaries in scientific discovery and maximize the impact of space-based Earth observation.

By coupling process-specific analysis (for example, the movement of sunlight through the atmosphere or water through soil) with global system models, IMVI advances holistic understanding of how complex Earth systems interact. Unique expertise in data assimilation — the process of merging observational data into computer models to improve forecast accuracy — support continued improvement for NASA's Earth projection and prediction capabilities.

Visualization showcasing aerosols as modeled by NASA's Goddard Earth Observing System (GEOS) for the period from August 1 to September 14, 2024. Aerosols are tiny solid or liquid particles suspended in the atmosphere that can travel vast distances, affecting air quality and visibility far from their original sources. This visualization is based on NASA's Goddard Earth Observing System (GEOS) model, which provides realistic, high-resolution weather and aerosol data that enables customized environmental prediction and advances in AI research.
NASA/GMAO & SVS

The Integrated Modeling Virtual Institute (IMVI) harnesses the power of NASA's state-of-the-art Earth system models to push the boundaries of scientific discovery. By enabling deeper understanding of complex Earth processes and enhancing predictive capabilities, IMVI supports real-world applications like weather forecasting, resource management, and artificial intelligence technologies."

DR. KAREN St. Germain

NASA Earth Science Division Director

IMVI Project Leadership

Argyro KavvadaProgram Manager, Integrated Earth System Modeling
Lesley OttProject Scientist, Integrated Virtual Modeling Institute
Joel McCorkelProject Manager, Integrated Virtual Modeling Institute
NASA/GSFC