Challenges_2026

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Challenges_2026

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Discover the ECMWF Code for Earth 2026 challenges

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<img src='https://raw.githubusercontent.com/ECMWFCode4Earth/Challenges_2026/main/Code for Earth logo (ECMWF).png ' alt='ESoWC 2022' align='left' width='15%'></img>
# ECMWF Code for Earth 2026

**ECMWF Code for Earth is an innovation programme run by the [European Centre for Medium-Range Weather Forecasts (ECMWF)](https://www.ecmwf.int/).** Its aim is to drive innovation and open source developments in the Earth sciences community - supporting developments in weather and climate, the two Copernicus services ([Copernicus Climate Change Service](https://climate.copernicus.eu/) and [Copernicus Atmosphere Monitoring Service](https://atmosphere.copernicus.eu/)), [Destination Earth](https://www.ecmwf.int/destine) and the [EU’s Africa Regional Centres of Excellence Programme (ArcX)](https://international-partnerships.ec.europa.eu/policies/programming/programmes/africa-regional-centres-excellence-programme-arcx_en), in line with the EU’s Global Gateway strategy.

In 2026, the programme is further strengthened through support from key challenge partners — [ENTSO‑E](https://www.entsoe.eu/), [AfriClimate AI](https://africlimate.ai), and [ICPAC/IGAD Climate Prediction and Application Centre](https://www.icpac.net).

Since 2018, each summer, developer teams work together with experienced mentors from ECMWF and partner organisations on innovative projects. These projects are related to the broad scope of activities at ECMWF, including data science, weather, climate or other earth sciences, visualisation and more.
For eligibility of participation, please check the [Code for Earth Terms & Conditions](http://codeforearth.ecmwf.int/terms-and-conditions).

## Mid-term Webinars
The Code for Earth 2026 Mid-Term Webinars are a great opportunity to follow the journey of our teams as they present the progress, insights, and challenges from the first half of the Coding Phase.

Over the course of two sessions, each lasting 90 minutes, the selected teams will showcase their projects to the public, sharing their goals, technical updates, early achievements, and the obstacles they’re tackling head-on.

### 🗓️ Webinar 1

Date: Thursday, 16 July 2026             
Time: 14:30 – 16:00 CEST

### 🗓️ Webinar 2

Date: Wednesday, 22 July 2026             
Time: 14:30 – 16:00 CEST

➡️ Register [here](https://codeforearth.ecmwf.int/mid-term-webinars/)

## Code for Earth 2026 Projects
Congratulations to all the teams that have been selected to be part of Code for Earth 2026:

| Project title | Team | Mentors |
| ---------- | --------------- | -------------- |
| [**Tabula Caloris**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/3) | Jean-Baptiste Filippi Ronan Paugam | [Joe McNorton](https://github.com/joemcnorton) [Edward Comyn-Platt](https://github.com/EddyCMWF) [Mark Parrington](https://github.com/mparrington) [Chris Barnard](https://github.com/enyfeo) [Matt Menary](https://github.com/mattofficeuk) | 
| [**PowerClimate Vision – Interactive Dashboard for Pan-European Climate-Energy Projections**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/15) | Alexandru Dumitrescu Vlad Amihaesei | [Aron Zuicker](https://github.com/azentsoe) [Laurent Dubus](https://github.com/ldubus) Ahmed Elshami Katharina Gruber Hanno Mueller [Nube Gonzalez Reviriego](https://github.com/NubeGR) [Niclas Rieger](https://github.com/nicrie) |
| [**Project Atlantis: -A Scalable STAC/Zarr Pipeline for ML-Ready Multi-Source Flood Inundation Observations**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/2) | Stylianos Lagaras Ioannis Kalfas | [Calum Baugh](https://github.com/calumbaugh) [Gianpaolo Balsamo](https://github.com/gpbalsamo) [Kenza Tazi](https://github.com/kenzaxtazi) [Andreas Grafberger](https://github.com/andreas-grafberger) |
| [**AIr-wise: AI-Based Uncertainty-Aware Air Quality Assessment**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/4)| Judongyang Zhou Linfeng Li | [Panagiotis Kountouris](https://github.com/orgs/ECMWFCode4Earth/people/pakoun) [Mark Parrington](https://github.com/mparrington) Jonilda Kushta Melanie Ades [Miha Razinger](https://github.com/miha-at-ecmwf) |
| [**TriHydrA: A Three-Layer Verification Framework for Streamflow Anomaly Detection**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/5) | Tarannum Tabassum | [Maliko Tanguy](https://github.com/ecMaliko) [Gwyneth Matthews](https://github.com/GwynethMatthews) [Kenza Tazi](https://github.com/kenzaxtazi) [Maria Luisa Taccari](https://github.com/mlttac) [Nikolaos Mastrantonas](https://github.com/NikosMastrantonas) |
| [**CausaLCEI — A Regime-Conditioned Causal Compound Event Index for Energy System Stress**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/12) | Irene Schicker Sebastian Lehner Annemarie Lexer | Alberto Troccoli Penny Boorman Kristian Nielsen Letizia Lusito [Stefano Cordeddu](https://github.com/stefanocordeddu) [Gianpaolo Balsamo](https://github.com/gpbalsamo) Christoph Rudiger Joaquin Munoz-Sabater |
| [**Weather to Grid: Subseasonal Energy Forecasting using ML**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/14) | Quentin Nicolas Emma Scharfmann Nora Zilibotti Vishnupriya Selvakumar | [Edward Comyn-Platt](https://github.com/EddyCMWF) Clara Ducher [Chiara Gagnazzo](https://github.com/chiaracagnazzo) [Fiona Spuler](https://github.com/fiona511) [Ben Aslan](https://github.com/deepfloe) |
| [**VAE toolbox**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/14) | [Alexander Hempel](https://github.com/AlexioHe) Antonia Bahr | [Edward Comyn-Platt](https://github.com/EddyCMWF) Clara Ducher [Chiara Gagnazzo](https://github.com/chiaracagnazzo) [Fiona Spuler](https://github.com/fiona511) [Ben Aslan](https://github.com/deepfloe) |
| [**GeoBridge**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/1) | Ilias Machairas Konstantinos Fokeas | [Angel Lopez Alos](https://github.com/ALopAGH) Samuel Almond |
| [**CLAM: A Reproducible WRF/WPS Template for Local Area NWP on the European Weather Cloud**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/8) | Iliija Jovicic | [Roberto Cuccu](https://github.com/ecusrc) [Bojan Kasic](https://github.com/bkasic) [Alon Shtivelman](https://github.com/ecalonsh) |
| [**AtmoLens**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/11) | Debjit Majumder | [Sebastian Steinig](https://github.com/sebsteinig) [Miha Razinger](https://github.com/miha-at-ecmwf) [Mark Parrington](https://github.com/mparrington) [Cathy Wing Yi Li](https://github.com/cathyli-ecmwf) [Auke Visser](https://github.com/visseraj) |
| [**Mvula: Compressing ECMWF’s AIFS for Edge Deployment**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/13) | Chimwemwe Chanda Mthetho Sovara Samuel Mathekga Gabriel Elim Fima Sichone | [Shruti Nath](https://github.com/snath-xoc) [Rendani Mbuvha](https://github.com/rendanim) [Mario Santa Cruz](https://github.com/JPXKQX) |
| [**GIK-IceChain — Zero-Cost Cloud-Native Pipeline for Retrospective Flood Risk Decision Support in East Africa**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/16) | Donald Feudjio KEMEKOUM Dylan Vincess DONGMO Njie Kemi Steve | [Nishadh Kalladath](https://github.com/nishadhka) Masilin Gudoshava Ahmed Amdihun Anthony Mwanthi Katherine Egan [Jessica Keune](https://github.com/jkeune) [Hillary Koros](https://github.com/HillaryKoros) |
| [**MUST**](https://github.com/ECMWFCode4Earth/Challenges_2026/issues/16) | Brian Koome Betty Linda Adongo Lester Kiluma Mark Ochieng Allan Oware Christine Maswi Lekeni Shukare Mikael Ashorn | [Nishadh Kalladath](https://github.com/nishadhka) Masilin Gudoshava Ahmed Amdihun Anthony Mwanthi Katherine Egan [Jessica Keune](https://github.com/jkeune) [Hillary Koros](https://github.com/HillaryKoros) |

## Browse the roadmap here below!

### 1. Call for Participation: 24 Feb - 9 April 2026
Browse through the Code for Earth 2026 challenges and ask questions. Together with ECMWF mentors, you can tailor your submission. Submit your proposal by 9 April 2026. For eligibility of participation, please check the [Code for Earth Terms & Conditions](http://codeforearth.ecmwf.int/terms-and-conditions).

### 2. Announcement of selected proposals: 29 Apr 2026
The Code for Earth 2026 teams will be announced on 29 April 2026. You can follow Code for Earth on [Linkedln](https://www.linkedin.com/company/ecmwf-code-for-earth) and [Bluesky](https://bsky.app/profile/codeforearth.bsky.social) and subscribe to the newsletter to get all updates.

### 3. Coding phase: 01 May  - 31 Aug 2026
The four-month long coding period starts on 01 May 2026 and ends on 31 August 2026. During this time, the selected teams will work with their Code for Earth mentors. These are experts in earth sciences like weather, climate and climate change, atmosphere and air quality or in technology areas like AI/ML, cloud computing, applied data science or open source software development.

### 4. Code for Earth Final day: September 2026
The Code for Earth Final Day is a celebratory completion of the programme. This year the event will be hosted at ECMWF's Headquarters in Reading, UK.
Teams will be invited to present their project results.

## Important links
* [Submit your proposal for the 2026 edition of Code for Earth!](https://codeforearth.ecmwf.int/submit-your-proposal-for-code-for-earth-2026/)
* [Code for Earth website](https://codeforearth.ecmwf.int)
* [Code for Earth Terms & Conditions](https://codeforearth.ecmwf.int/terms-of-use/)
* [Code for Earth Frequently Asked Questions](https://codeforearth.ecmwf.int/faqs/)
* Follow Code for Earth on [LinkedIn](https://www.linkedin.com/company/ecmwf-code-for-earth), [YouTube](https://www.youtube.com/channel/UCWLn6evyZ6tTktvUSTE1Xow) and [Bluesky](https://bsky.app/profile/codeforearth.bsky.social)
* ECMWF Newsletter: [Code for Earth 2025: Innovation, collaboration and impact](https://www.ecmwf.int/en/newsletter/185/news/code-earth-2025-innovation-collaboration-and-impact)

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