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@ecmwf

European Centre for Medium-Range Weather Forecasts

Providing software to work with meteorological data and services

Welcome to ECMWF GitHub!

ECMWF is the European Centre for Medium-Range Weather Forecasts.

Have a look at some of our popular topics:

  • earthkit for weather and climate tools in Python
  • anemoi for developing machine learning weather forecasting models
  • ecflow for workflow management
  • mars for data handling software and services

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  1. earthkit earthkit Public

    Python tools to work with weather and climate data

    Python 319 21

  2. eccodes eccodes Public

    ECMWF's GRIB and BUFR decoding/encoding library

    C++ 274 112

  3. ecmwf-opendata ecmwf-opendata Public

    A package to download ECMWF open data

    Python 341 55

  4. ecflow ecflow Public

    ECMWF's workflow manager

    C++ 65 25

  5. anemoi-core anemoi-core Public

    Core packages for Anemoi.

    Python 170 125

Repositories

Showing 10 of 174 repositories
  • anemoi-core Public

    Core packages for Anemoi.

    ecmwf/anemoi-core's past year of commit activity
    Python 170 Apache-2.0 125 86 (7 issues need help) 51 Updated Oct 24, 2026
  • open-ecpds Public

    OpenECPDS boosts the efficiency and productivity of data services by using proven and innovative technologies. It offers a portable, adaptable application for diverse environments, with a user-friendly tool for managing data acquisition, dissemination with push/pull mechanisms, and a notification system, all using standard protocols.

    ecmwf/open-ecpds's past year of commit activity
    Java 12 Apache-2.0 2 0 1 Updated Oct 24, 2026
  • ci-infrastructure Public

    This repository contains the necessary python scripts, github actions, and docker images to orchestrate the CI at ECMWF. It is responsible for the caching and reuse of artifacts or triggering a downstream job.

    ecmwf/ci-infrastructure's past year of commit activity
    Python 0 Apache-2.0 1 10 5 Updated Oct 24, 2026
  • ecflow Public

    ECMWF's workflow manager

    ecmwf/ecflow's past year of commit activity
    C++ 65 Apache-2.0 25 3 11 Updated Oct 24, 2026
  • metkit Public

    Toolkit for manipulating and describing meteorological objects, implementing the MARS language and associated processing and semantics.

    ecmwf/metkit's past year of commit activity
    C++ 10 Apache-2.0 17 2 14 Updated Oct 24, 2026
  • eckit Public

    A C++ toolkit that supports development of tools and applications at ECMWF.

    ecmwf/eckit's past year of commit activity
    C++ 31 Apache-2.0 28 8 14 Updated Oct 24, 2026
  • fckit Public

    A Fortran toolkit for interoperating Fortran with C/C++

    ecmwf/fckit's past year of commit activity
    Fortran 48 Apache-2.0 21 8 9 Updated Oct 23, 2026
  • atlas Public

    A library for numerical weather prediction and climate modelling

    ecmwf/atlas's past year of commit activity
    C++ 152 Apache-2.0 50 20 13 Updated Oct 23, 2026
  • anemoi Public
    ecmwf/anemoi's past year of commit activity
    Python 152 Apache-2.0 23 12 2 Updated Oct 23, 2026
  • WeatherGenerator Public

    The repository of the WeatherGenerator project

    ecmwf/WeatherGenerator's past year of commit activity
    Python 147 Apache-2.0 78 474 (9 issues need help) 175 Updated Oct 23, 2026