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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 584 289

  2. netcdf-java netcdf-java Public

    The Unidata netcdf-java library

    Java 186 82

  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 446

  5. awips2 awips2 Public

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

    Java 210 82

  6. IDV IDV Public

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

    Java 89 39

Repositories

Showing 10 of 141 repositories
  • netcdf4-python Public

    netcdf4-python: python/numpy interface to the netCDF C library

    Unidata/netcdf4-python’s past year of commit activity
    Cython 823 MIT 271 153 2 Updated Mar 6, 2026
  • unidata-jekyll-theme Public

    A jekyll theme for Unidata documentation

    Unidata/unidata-jekyll-theme’s past year of commit activity
    CSS 0 3 4 0 Updated Mar 5, 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 210 MIT 82 83 0 Updated Mar 5, 2026
  • netcdf-c Public

    Official GitHub repository for netCDF-C libraries and utilities.

    Unidata/netcdf-c’s past year of commit activity
    C 584 BSD-3-Clause 289 291 29 Updated Mar 5, 2026
  • tds Public

    THREDDS Data Server

    Unidata/tds’s past year of commit activity
    Java 79 BSD-3-Clause 28 31 (1 issue needs help) 1 Updated Mar 5, 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 Mar 4, 2026
  • gempak Public

    Analysis and product generation for meteorological data.

    Unidata/gempak’s past year of commit activity
    C 81 BSD-3-Clause 32 45 1 Updated Mar 4, 2026
  • netcdf-java Public

    The Unidata netcdf-java library

    Unidata/netcdf-java’s past year of commit activity
    Java 186 BSD-3-Clause 82 75 (2 issues need help) 0 Updated Mar 3, 2026
  • edal-java Public Forked from Reading-eScience-Centre/edal-java

    Environmental Data Abstraction Layer libraries and ncWMS.

    Unidata/edal-java’s past year of commit activity
    Java 3 33 0 0 Updated Mar 3, 2026
  • 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 1,397 BSD-3-Clause 446 319 (11 issues need help) 42 Updated Mar 2, 2026
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