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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 315 20

  2. eccodes eccodes Public

    ECMWF's GRIB and BUFR decoding/encoding library

    C++ 270 111

  3. ecmwf-opendata ecmwf-opendata Public

    A package to download ECMWF open data

    Python 339 55

  4. ecflow ecflow Public

    ECMWF's workflow manager

    C++ 65 25

  5. anemoi-core anemoi-core Public

    Core packages for Anemoi.

    Python 163 119

Repositories

Showing 10 of 172 repositories
  • ecflow Public

    ECMWF's workflow manager

    ecmwf/ecflow's past year of commit activity
    C++ 65 Apache-2.0 25 2 7 Updated Oct 7, 2026
  • ecmwf/earthkit-climate's past year of commit activity
    Python 7 Apache-2.0 4 16 9 Updated Oct 6, 2026
  • anemoi-core Public

    Core packages for Anemoi.

    ecmwf/anemoi-core's past year of commit activity
    Python 163 Apache-2.0 119 86 (7 issues need help) 50 Updated Oct 6, 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 7 Updated Oct 6, 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++ 9 Apache-2.0 15 1 14 Updated Oct 6, 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 21 Apache-2.0 11 48 10 Updated Oct 6, 2026
  • earthkit-data Public

    A format-agnostic Python interface for geospatial data

    ecmwf/earthkit-data's past year of commit activity
    Python 122 Apache-2.0 35 57 14 Updated Oct 6, 2026
  • covjsonkit Public

    A library for encoding and decoding coverageJSON files/objects of meteorlogical features such as vertical profiles and time series.

    ecmwf/covjsonkit's past year of commit activity
    Python 6 Apache-2.0 4 5 9 Updated Oct 6, 2026
  • bits-broker Public
    ecmwf/bits-broker's past year of commit activity
    Rust 1 Apache-2.0 0 18 2 Updated Oct 6, 2026
  • eckit Public

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

    ecmwf/eckit's past year of commit activity
    C++ 30 Apache-2.0 27 9 11 Updated Oct 6, 2026