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NSF Unidata

Our mission is to transform the geosciences community, research, and education by providing innovative data services and tools.
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What is NSF Unidata?

U.S. National Science Foundation Unidata is a diverse community of education and research institutions with the common goal of sharing geoscience data and the tools to access and visualize that data. For more than 35 years, NSF Unidata has been providing data, software tools, and support to enhance Earth-system education and research. Funded primarily by the U.S. National Science Foundation, NSF Unidata is one of the University Corporation for Atmospheric Research (UCAR)'s Community Programs (UCP).

NSF Unidata's GitHub repositories contain code for software projects created or maintained by developers at the NSF Unidata Program Center. We actively encourage contributions to these projects in the form of issues and pull requests.

Participant Code of Conduct

If you're interested in contributing, please take a look at NSF Unidata's Contributor Code of Conduct.

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  1. netcdf-c netcdf-c Public

    Official GitHub repository for netCDF-C libraries and utilities.

    C 579 288

  2. netcdf-java netcdf-java Public

    The Unidata netcdf-java library

    Java 184 81

  3. LDM LDM Public

    The Unidata Local Data Manager (LDM) system includes network client and server programs designed for event-driven data distribution, and is the fundamental component of the Unidata Internet Data Di…

    C 47 29

  4. MetPy MetPy Public

    MetPy is a collection of tools in Python for reading, visualizing and performing calculations with weather data.

    Python 1.4k 445

  5. awips2 awips2 Public

    Weather forecasting display and analysis package developed by NWS/Raytheon, released as open source software by Unidata.

    Java 208 82

  6. IDV IDV Public

    The Integrated Data Viewer (IDV) from Unidata is a framework for analyzing and displaying geoscience data.

    Java 88 37

Repositories

Showing 10 of 141 repositories
  • MetPy Public

    MetPy is a collection of tools in Python for reading, visualizing and performing calculations with weather data.

    Unidata/MetPy’s past year of commit activity
    Python 1,390 BSD-3-Clause 445 317 (11 issues need help) 41 Updated Feb 1, 2026
  • MetPy-benchmark Public

    Benchmarks for the MetPy project

    Unidata/MetPy-benchmark’s past year of commit activity
    1 MIT 1 0 0 Updated Jan 31, 2026
  • awips2 Public

    Weather forecasting display and analysis package developed by NWS/Raytheon, released as open source software by Unidata.

    Unidata/awips2’s past year of commit activity
    Java 208 MIT 82 83 0 Updated Jan 31, 2026
  • siphon Public

    Siphon - A collection of Python utilities for retrieving atmospheric and oceanic data from remote sources, focusing on being able to retrieve data from Unidata data technologies, such as the THREDDS data server.

    Unidata/siphon’s past year of commit activity
    Python 239 BSD-3-Clause 74 71 (2 issues need help) 11 Updated Jan 30, 2026
  • docker-nctests Public

    Docker configuration files for building netCDF regression testing containers.

    Unidata/docker-nctests’s past year of commit activity
    Shell 5 2 0 0 Updated Jan 29, 2026
  • netcdf Public

    NetCDF Users Group (NUG)

    Unidata/netcdf’s past year of commit activity
    CSS 6 MIT 13 22 2 Updated Jan 29, 2026
  • netcdf-c Public

    Official GitHub repository for netCDF-C libraries and utilities.

    Unidata/netcdf-c’s past year of commit activity
    C 579 BSD-3-Clause 288 272 22 Updated Jan 27, 2026
  • 2026-ams-studentconference Public

    Exploring Meteorological Datasets with NSF Unidata AWIPS & MetPy - AMS Student Conference Workshop

    Unidata/2026-ams-studentconference’s past year of commit activity
    Jupyter Notebook 0 1 0 0 Updated Jan 25, 2026
  • tds Public

    THREDDS Data Server

    Unidata/tds’s past year of commit activity
    Java 79 BSD-3-Clause 29 31 (1 issue needs help) 1 Updated Jan 23, 2026
  • science-gateway Public

    Unidata Science Gateway on the NSF Jetstream2 Cloud

    Unidata/science-gateway’s past year of commit activity
    Jupyter Notebook 20 BSD-3-Clause 13 6 8 Updated Jan 22, 2026
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