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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 187 10

  2. eccodes eccodes Public

    ECMWF's GRIB and BUFR decoding/encoding library

    C++ 250 97

  3. ecmwf-opendata ecmwf-opendata Public

    A package to download ECMWF open data

    Python 296 46

  4. ecflow ecflow Public

    ECMWF's workflow manager

    C++ 57 17

  5. anemoi-core anemoi-core Public

    Core packages for Anemoi.

    Python 114 82

Repositories

Showing 10 of 155 repositories
  • anemoi-datasets Public

    Datasets for Machine Learning weather forecasting models

    ecmwf/anemoi-datasets’s past year of commit activity
    Python 64 Apache-2.0 59 71 (1 issue needs help) 14 Updated Feb 25, 2026
  • fdb Public

    Fdb is a domain-specific object store for meteorological objects

    ecmwf/fdb’s past year of commit activity
    C++ 42 Apache-2.0 13 16 9 Updated Feb 25, 2026
  • anemoi-inference Public

    Inference of Machine Learning weather forecasting models

    ecmwf/anemoi-inference’s past year of commit activity
    Python 35 Apache-2.0 29 14 (2 issues need help) 5 Updated Feb 25, 2026
  • anemoi-core Public

    Core packages for Anemoi.

    ecmwf/anemoi-core’s past year of commit activity
    Python 114 Apache-2.0 82 133 (6 issues need help) 36 Updated Feb 25, 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++ 7 Apache-2.0 11 1 5 Updated Feb 25, 2026
  • pproc Public
    ecmwf/pproc’s past year of commit activity
    Python 0 Apache-2.0 0 0 1 Updated Feb 25, 2026
  • WeatherGenerator Public

    The repository of the WeatherGenerator project

    ecmwf/WeatherGenerator’s past year of commit activity
    Python 106 Apache-2.0 57 305 (8 issues need help) 60 Updated Feb 25, 2026
  • atlas-fesom Public

    This is a Atlas plugin that adds support for FESOM grids and mesh generation. The plugin registers known FESOM grids and is responsible for retrieving and reading binary data files that store the coordinates for these grids.

    ecmwf/atlas-fesom’s past year of commit activity
    C++ 0 Apache-2.0 0 0 0 Updated Feb 25, 2026
  • forecast-in-a-box Public

    Forecast-In-A-Box is a prototype system to integrate ECMWF ML Models and products into a self contained box

    ecmwf/forecast-in-a-box’s past year of commit activity
    TypeScript 8 Apache-2.0 5 30 10 Updated Feb 25, 2026
  • qubed Public

    A data structure for efficiently representing and querying complex-tree datacubes.

    ecmwf/qubed’s past year of commit activity
    Python 10 Apache-2.0 1 7 9 Updated Feb 25, 2026