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ECMWF @ecmwf.int · 27/09/2026

Polytope is our data-access system for extracting specific features directly from large datasets. It can substantially reduce transfer volumes & simplify workflows, changing the user experience. www.ecmwf.int/en/about/media-centre…

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ECMWF @ecmwf.int · 25/09/2026

🌍🌐 Registration for Course 3 of our ML training series under the EU DestinE initiative is now open. Explore explainability, foundation models, hybrid modelling, downscaling, coupled Earth systems and AI forecasting pipelines. 📅 5 October | Online Register now: learning.ecmwf.int/course/view....

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ECMWF @ecmwf.int · 23/09/2026

🌍🌐 Our new animation explores the development of the AI-based sea ice component, a key step towards a fully driven machine learning (ML)-driven Earth system model within the Destination Earth (DestinE) initiative of the European Commission. Watch the full animation: destine.ecmwf.int/video/destin...

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ECMWF @ecmwf.int · 22/09/2026

Code for Earth Final Day 2026 takes place tomorrow! It will feature live presentations from all 14 developer teams, sharing their final results and takeaways while turning climate data into working tools. Livestream & programme here ➡️ codeforearth.ecmwf.int/code-for-ear…

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ECMWF @ecmwf.int · 21/09/2026

Users of ECMWF data now have the option of signing up for direct delivery of the ERA5T reanalysis data via ECMWF's Product Requirements Catalogue. ERA5T is an initial release version of ERA5, issued every day, 5 days behind real time. Read more ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 19/09/2026

Code for Earth is an innovation programme run by ECMWF. Next week, Code for Earth 2026 celebrates its final milestone with an event featuring live presentations from the 14 participating teams. Register to participate online ➡️ codeforearth.ecmwf.int/code-for-ear…

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ECMWF @ecmwf.int · 18/09/2026

That's a wrap for the 2026 Annual Seminar! Thank you to all our speakers for sharing their expertise, and to everyone who joined us throughout the week. Missed a session? Recordings and presentation slides are now available:  ecmwfevents.com/i/annual-seminar-20…

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ECMWF @ecmwf.int · 18/09/2026

📢 1 week left to register! The workshop on software strategies for sustainable physical modelling will explore how we can build sustainable, adaptable and innovative modelling systems. 🗓️ Deadline: 25 September 2026 ➡️https://events.ecmwf.int/event/529/

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ECMWF @ecmwf.int · 18/09/2026

Final day at our Annual Seminar This week’s journey: 🛰️ DA: foundation of modern forecasting 🤖 ML: improving systems 🌍 AI: exploring what comes next This morning from 09:00 BST we look at the future of data assimilation in the age of AI. Join live ➡️ ecmwfevents.com/i/annual-seminar-20…

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ECMWF @ecmwf.int · 17/09/2026

The State of Global Water Resources 2025 report of the @wmo-global.bsky.social is out now. ECMWF supported the report’s assessment of river discharge conditions worldwide with river flow data from two global modelling systems: GloFAS and ecLand-CaMa. ➡️ wmo.int/resources/pu... #StateOfWater

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ECMWF @ecmwf.int · 17/09/2026

What if AI could transform observations into forecasts without traditional Data Assimilation (DA) steps? At our Annual Seminar experts explore the next frontier: 🤖 ML systems beyond DA enhancement 🌍 New approaches to Earth system prediction Watch live: ecmwfevents.com/i/annual-seminar-20…

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ECMWF @ecmwf.int · 16/09/2026

Today at the Annual Seminar we explore the observations behind better forecasts. Topics include: 🛰️ Next-generation satellites 🌍 Future observation systems Better observations are the foundation for better predictions. Watch live from 09:00 BST ➡️ ecmwfevents.com/i/annual-sem...

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ECMWF @ecmwf.int · 15/09/2026

ECMWF's supercomputing & cloud services are two parts of one ecosystem. The high-performance computing facility runs our operational forecasting systems and prepares future ones. Our cloud services facilitate access to data, experimenting and developing applications. www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 15/09/2026

Our Annual Seminar continues today at 09:00 BST. Join us to explore how Data Assimilation continues to evolve to support better forecasts. Follow live from 09:00 BST ➡️ ecmwfevents.com/i/annual-sem...

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ECMWF @ecmwf.int · 14/09/2026

Data Assimilation remains a cornerstone of operational forecasting. Find out more by following our Annual Seminar which starts today at 13:30 BST. 💻 Watch live ➡️ ecmwfevents.com/i/annual-sem... Programme ➡️ ecmwfevents.com/i/annual-sem...

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ECMWF @ecmwf.int · 10/09/2026

Next week, join scientists and experts from around the world as they discuss “Advancing the assimilation of Earth system observations with new methodology and Machine Learning” at the ECMWF Annual Seminar 2026. 📺 Livestream starts Monday, 14 September, at 13:30 BST. ➡️ events.ecmwf.int/e/AS2026

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ECMWF @ecmwf.int · 08/09/2026

🌍 A year into the AI Weather Quest, benchmarking weekly, real-time AI-based sub-seasonal forecasts from international teams, join our fifth 𝗪𝗠𝗢 𝗔𝗜 𝗪𝗲𝗯𝗶𝗻𝗮𝗿: 𝗔𝗻𝗻𝘂𝗮𝗹 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 𝗮𝗻𝗱 𝗔𝘄𝗮𝗿𝗱𝘀. 📅 24 September, 13:00 UTC, online 🔗 events.ecmwf.int/event/581/

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ECMWF @ecmwf.int · 08/09/2026

The spatio-temporal downscaler is a flow-matching model, a generative ML technique, trained using the Anemoi framework. It is trained on ERA5 and transforms fields with low spatial and temporal resolution into higher-resolution, hourly sequences. ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 07/09/2026

🌍🌐 Course 2 of our Machine Learning for Earth Systems Modelling series has concluded and Course 3 is coming next. Developed under the EU’s Destination Earth initiative, the final course explores ML applications across weather, climate and Earth system modelling. ➡️ destine.ecmwf.int/news/machine...

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ECMWF @ecmwf.int · 07/09/2026

This summer the Copernicus Atmosphere Monitoring Service (CAMS), which is implemented by ECMWF, released the Assessment Report on European Air Quality 2025. On the International Day of Clean Air for blue skies, take a look at some of the key findings ⬇️ atmosphere.copernicus.eu/cams-release...

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ECMWF @ecmwf.int · 07/09/2026

ECMWF is taking part in this year’s Annual Meeting of the European Meteorological Society in Utrecht, the Netherlands, and online. Our staff are participating in a broad range of sessions, covering topics from AI and physics-based forecasting to hydrology. ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 07/09/2026

ECMWF is preparing for its next HPC facility, planned for installation in 2027. It will be designed to support physics-based and AI-based forecasts and provide resources for training machine-learning models, reflecting the growing role of AI in weather forecasting. www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 04/09/2026

The summer 2026 issue of the ECMWF Newsletter is now available. As well as news about ECMWF staff and events, it features articles about new developments and the use that can be made of ECMWF products. www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 03/09/2026

🌍🌐 New Climate Digital Twin (Climate DT) impact sector data is now available through the EU’s DestinE initiative. The data covers renewable energy, wildfires, hydrology and extreme precipitation. Read more: destine.ecmwf.int/news/climate...

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ECMWF @ecmwf.int · 03/09/2026

Satellites have transformed weather forecasting. At ECMWF, they provide the vast majority of observational information behind Earth-system analyses and reanalyses. Find out how ECMWF turns satellite data into trusted weather predictions ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 01/09/2026

Today Dr Jørn Kristiansen has taken up his position as Deputy Director-General of ECMWF, with responsibility for the Operational Delivery and Digital Infrastructure portfolio, and as Director of Forecasts.  ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 31/08/2026

ECMWF's HPC system has around 1 million processors and 248 Graphics Processing Units that can perform many calculations in parallel. Around 1.5 exabytes (1,500,000,000,000,000,000 bytes) of data are currently stored, equivalent to roughly 175 billion music tracks. www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 27/08/2026

Every year, floods affect more people worldwide than any other natural hazard. Accurate streamflow forecasts are essential to issue timely warnings and protect lives. We're introducing Artificial Intelligence for Floods (AIFL), a global streamflow forecasting model. www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 27/08/2026

Over the last 30 years, lakes globally have warmed by ~0.22°C per decade. In Europe, the rate of warming is faster, at ~0.33°C per decade. On #WorldLakeDay, take a closer look at the findings on European lakes in the European State of the Climate 2025. ➡️ climate.copernicus.eu/esotc/2025/l...

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ECMWF @ecmwf.int · 26/08/2026

🌍🌐 A new paper presents AQUA (Application for QUality Assessment), the open-source framework developed to support the automated evaluation of simulations produced by the European Commission’s DestinE Climate Change Adaptation Digital Twin (Climate DT). Read more: destine.ecmwf.int/news/new-pap...

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ECMWF @ecmwf.int · 24/08/2026

🌍🌐 Explore the latest Climate Digital Twin (Climate DT) simulations and learn how to access the data. In a new recording, ECMWF scientists present the latest developments of the Climate DT of the European Commission’s Destination DestinE initiative. ️Watch now: destine.ecmwf.int/news/watch-c...

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ECMWF @ecmwf.int · 24/08/2026

ECMWF has operated a world-class HPC facility since 1978, when its first CRAY-1 supercomputer was installed. Today, its facility in Bologna comprises four energy-efficient Atos BullSequana XH2000 clusters. It took over production of operational forecasts in 2022. www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 21/08/2026

🌍 Join us on 24 September for the AI Weather Quest: Annual Highlights and Awards webinar, part of the WMO AI Webinar series. The ECMWF AI Weather Quest benchmarks ML models for weeks 3–4 forecasts. Hear first-year insights, rankings and what comes next. Register: events.ecmwf.int/event/581/

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ECMWF @ecmwf.int · 20/08/2026

📢 2 weeks to go! Abstract submissions for our workshop on software strategies for sustainable physical modelling close 4 September. We’re looking for contributions on HPC, programming languages, ML, open-source software, testing and more. 📍 Reading | 23–27 Nov 2026 ➡️ events.ecmwf.int/event/529/

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ECMWF @ecmwf.int · 20/08/2026

HourGlass is a new data-driven probabilistic temporal downscaling method developed by @met.no and ECMWF. It reconstructs the likely evolution of the atmosphere between forecast times, generating hourly forecasts that remain consistent with the original prediction. ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 19/08/2026

The Copernicus Atmosphere Monitoring Service produces global forecasts of atmospheric composition, including ozone concentration. It found that recent heatwaves saw concentrations as high as 180μg/m3. A typical European summer ozone concentration is 40-60μg/m3. ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 14/08/2026

From 14 to 18 September, our Annual Seminar will explore the evolution of Data Assimilation (DA) and you can follow live: 🛰️ Traditional DA powering operational forecasting 🤖 ML improving existing approaches 🚀 AI systems shaping the future Full programme ➡️ ecmwfevents.com/i/annual-sem...

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ECMWF @ecmwf.int · 13/08/2026

The urban heat island effect causes urban areas to remain warmer than their rural surroundings. For a forecasting system to capture this effect, it needs to know where the cities are. AIFS v3 is set to include a static field representing urban extents. ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 10/08/2026

Member and Co-operating States are central to ECMWF’s strategic direction and collaborative model. To maintain productive working relationships and ensure services continue to meet user needs, ECMWF has a long tradition of visiting its Member and Co-operating States. www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 07/08/2026

🌍🌐 Our latest user story explores how the Climate DT of the EU's DestinE initiative is helping strengthen flood and drought preparedness through the HydroLand application. Read how HydroLand is helping turn data into practical information for climate adaptation ➡️ destine.ecmwf.int/strengthenin...

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ECMWF @ecmwf.int · 05/08/2026

Applications are now open for three in-person ECMWF training courses taking place in Reading in January 2027. Covering data assimilation, satellite observations and the use of ECMWF forecast products, the courses combine expert-led lectures with practical sessions. ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 04/08/2026

Introducing the IFS Assistant, a new AI tool to help users of ECMWF's Integrated Forecasting System (IFS). It is designed to help users find and understand information across the IFS codebase and documentation. Read more about the IFS Assistant ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 03/08/2026

ECMWF and @cam.ac.uk have collaborated on a new approach to forecasting the intensity of tropical cyclones (TCs) called AIFS-TC. This approach starts with the Artificial Intelligence Forecasting System (AIFS) forecast and learns how to correct its intensity errors. ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 27/07/2026

The Assessment Report on European Air Quality 2025 from the Copernicus Atmosphere Monitoring Service (CAMS), which is implemented by ECMWF, shows that air quality across Europe continues to improve. However, the report also highlights that pollution episodes persist. ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 24/07/2026

In June and early July, ECMWF held a series of major events bringing together national meteorological and hydrological services, research institutions, universities, European agencies, policymakers, industry partners and users. Read about recent ECMWF events here ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 23/07/2026

The Machine Learning Project (MLP) is a joint effort between ECMWF and 17 national meteorological services. The unifying software framework facilitating the MLP is the open-source ML framework #Anemoi. Read more about the MLP & Anemoi ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 22/07/2026

🌍🌐 The European Commission's Destination Earth (DestinE) initiative is pushing the boundaries of Earth-system modelling and AI. This is made possible thanks to strategic access to supercomputers provided through @eurohpc-ju.bsky.social. Read more ➡️ destine.ecmwf.int/news/harness...

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ECMWF @ecmwf.int · 21/07/2026

At ECMWF, rather than asking users to understand where data is stored or how systems are organised, the MARS language enables them to describe the data they need and the underlying systems handle everything else. Read more about the MARS language ➡️ www.ecmwf.int/en/about/med...

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ECMWF @ecmwf.int · 21/07/2026

🌍🌐 ECMWF is inviting proposals for communication services to help promote our contribution to the EU’s DestinE initiative. The contract will cover a broad range of communication services, with a focus on event management and (social) media monitoring. Find out more ➡️ www.ecmwf.int/en/about/sup...

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ECMWF @ecmwf.int · 20/07/2026

Using AIFS-DOP, ECMWF scientists have produced a prototype global reanalysis using Earth system observations alone. The results point to the potential of observation-driven machine learning to complement future operational reanalysis production. Read more ➡️ www.ecmwf.int/en/about/med...

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