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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 606 303

  2. netcdf-java netcdf-java Public

    The Unidata netcdf-java library

    Java 200 87

  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 50 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 452

  5. awips2 awips2 Public

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

    Java 227 84

  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
  • tds Public

    THREDDS Data Server

    Unidata/tds's past year of commit activity
    Java 83 BSD-3-Clause 27 27 (1 issue needs help) 1 Updated Oct 1, 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 34 0 0 Updated Oct 1, 2026
  • threddsIso Public

    A THREDDS Data Server extension which generates NCML, a metadata rubric, and ISO 19115.

    Unidata/threddsIso's past year of commit activity
    XSLT 6 16 13 2 Updated Oct 1, 2026
  • netcdf-cxx4 Public

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

    Unidata/netcdf-cxx4's past year of commit activity
    C++ 152 57 58 2 Updated Oct 1, 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 Oct 1, 2026
  • netcdf-c Public

    Official GitHub repository for netCDF-C libraries and utilities.

    Unidata/netcdf-c's past year of commit activity
    C 606 BSD-3-Clause 303 264 24 Updated Oct 1, 2026
  • tdm-docker Public

    Dockerized TDM

    Unidata/tdm-docker's past year of commit activity
    Shell 4 BSD-3-Clause 7 0 1 Updated Oct 1, 2026
  • thredds-docker Public

    Dockerized THREDDS

    Unidata/thredds-docker's past year of commit activity
    Dockerfile 40 BSD-3-Clause 32 4 1 Updated Oct 1, 2026
  • tomcat-docker Public

    Security-hardened Tomcat container for thredds-docker.

    Unidata/tomcat-docker's past year of commit activity
    Shell 67 BSD-3-Clause 69 1 1 Updated Oct 1, 2026
  • netcdf-test-action Public

    Action to use in a netCDF Test Environment

    Unidata/netcdf-test-action's past year of commit activity
    Dockerfile 3 BSD-3-Clause 2 0 0 Updated Oct 1, 2026