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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 606 311

  2. netcdf-java netcdf-java Public

    The Unidata netcdf-java library

    Java 200 88

  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 52 30

  4. MetPy MetPy Public

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

    Python 1.5k 459

  5. awips2 awips2 Public

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

    Java 232 83

  6. IDV IDV Public

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

    Java 92 38

Repositories

Showing 10 of 132 repositories
  • 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 232 MIT 83 81 2 Updated Nov 6, 2026
  • netcdf-cxx4 Public

    Official GitHub repository for netCDF-C++ libraries and utilities.

    Unidata/netcdf-cxx4's past year of commit activity
    C++ 153 58 58 2 Updated Nov 6, 2026
  • netcdf-java Public

    The Unidata netcdf-java library

    Unidata/netcdf-java's past year of commit activity
    Java 200 BSD-3-Clause 88 71 (2 issues need help) 2 Updated Nov 6, 2026
  • tds Public

    THREDDS Data Server

    Unidata/tds's past year of commit activity
    Java 83 BSD-3-Clause 27 26 (1 issue needs help) 1 Updated Nov 5, 2026
  • usg-vm-stacks Public

    Configuration for services/servers running on the NSF Jetstream2 Cloud as part of the NSF Unidata Science Gateway

    Unidata/usg-vm-stacks's past year of commit activity
    Shell 0 BSD-3-Clause 2 2 0 Updated Nov 5, 2026
  • TdsConfig Public

    Contents of TDS configuration directories for several variants including a TDS serving all Unidata IDD data

    Unidata/TdsConfig's past year of commit activity
    Jupyter Notebook 7 12 11 (1 issue needs help) 0 Updated Nov 5, 2026
  • ldm-docker Public

    Dockerized LDM

    Unidata/ldm-docker's past year of commit activity
    Tcl 16 BSD-3-Clause 14 1 0 Updated Nov 5, 2026
  • 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 92 38 11 6 Updated Nov 5, 2026
  • UDUNITS-2 Public

    API and utility for arithmetic manipulation of units of physical quantities

    Unidata/UDUNITS-2's past year of commit activity
    C 71 42 57 2 Updated Nov 4, 2026
  • cftime Public

    Time-handling functionality from netcdf4-python.

    Unidata/cftime's past year of commit activity
    Python 98 MIT 50 15 (1 issue needs help) 1 Updated Nov 4, 2026
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