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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 570 287

  2. netcdf-java netcdf-java Public

    The Unidata netcdf-java library

    Java 179 79

  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 46 28

  4. MetPy MetPy Public

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

    Python 1.4k 441

  5. awips2 awips2 Public

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

    Java 203 82

  6. IDV IDV Public

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

    Java 87 37

Repositories

Showing 10 of 135 repositories
  • tds Public

    THREDDS Data Server

    Unidata/tds’s past year of commit activity
    Java 78 BSD-3-Clause 28 28 (1 issue needs help) 1 Updated Nov 27, 2025
  • cftime Public

    Time-handling functionality from netcdf4-python.

    Unidata/cftime’s past year of commit activity
    Python 90 MIT 42 14 (1 issue needs help) 2 Updated Nov 25, 2025
  • IDV Public

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

    Unidata/IDV’s past year of commit activity
    Java 87 37 11 6 Updated Nov 25, 2025
  • 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 203 MIT 82 83 0 Updated Nov 25, 2025
  • netcdf Public

    NetCDF Users Group (NUG)

    Unidata/netcdf’s past year of commit activity
    Makefile 6 MIT 13 23 4 Updated Nov 24, 2025
  • netcdf-c Public

    Official GitHub repository for netCDF-C libraries and utilities.

    Unidata/netcdf-c’s past year of commit activity
    C 570 BSD-3-Clause 287 282 27 Updated Nov 24, 2025
  • 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 1,377 BSD-3-Clause 441 318 (11 issues need help) 46 Updated Nov 24, 2025
  • python-awips Public

    A framework for querying AWIPS meteorological datasets from an EDEX Data Server.

    Unidata/python-awips’s past year of commit activity
    Python 47 23 6 1 Updated Nov 24, 2025
  • 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 236 BSD-3-Clause 73 70 (2 issues need help) 13 Updated Nov 24, 2025
  • MetPy-benchmark Public

    Benchmarks for the MetPy project

    Unidata/MetPy-benchmark’s past year of commit activity
    1 MIT 1 0 0 Updated Nov 22, 2025
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