Our Research

The Global Systems Division (GSD) of the Earth System Research Laboratory (ESRL) is a leader in the applied research, directed development, and technology transfer of environmental data, products, and services that enhance environmental understanding with the outcome of supporting commerce, protecting life and property, and promoting a scientifically literate public.

Numerical Weather Prediction

GSD leads the nation in developing local-to-global scale weather, air quality, and climate data assimilation and prediction models. These modeling systems deliver forecasts and predictions of weather, including severe weather events, within the next few minutes to weeks away.

Evaluation and Decision Support

GSD develops state-of-the-art environmental forecast, decision support, visualization, and evaluation to provide scientifically robust forecast assessment tools, concepts, and analyses to support the weather decision-making process.

Advanced Technology and Outreach

GSD provides revolutionary high-performance computing technology to meet the needs of NOAA environmental modeling systems and decision support tools, and develops innovative ways to display complex information in ways that help people of all ages and education to learn about and understand our diverse and complex world. GSD has forged the basis of virtually all high performance computing methods used in NOAA operations and research.

Global Observing Systems Analysis - GOSA

GSD researchers are performing in-depth Observing System Simulation Experiments (OSSEs) and Observing System Experiments (OSEs) to quantitatively evaluate the benefits of current and future observing systems for improving weather forecasts from numerical models.


  • HRRR Image

    HRRR Image

    High-Resolution Rapid Refresh (HRRR) experimental 9-hour forecast of thunderstorms for April 27, 2011 in the southeast U.S. The Tuscaloosa tornadic storm was predicted with county-scale accuracy. Source: NOAA ESRL

  • AWIPSII Workstation

    AWIPS Workstation Image

    Advanced Weather Interactive Processing System (AWIPS)-II

  • SOS®

    SOS Image

    Elementary students are treated to the SOS® demonstration.