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Putting users first: the common language behind ECMWF’s data

20 July 2026

For more than four decades, ECMWF has used the MARS language to describe weather and climate data in scientifically meaningful terms.

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Data you can trust: how ECMWF builds quality into every forecast

7 July 2026

Every day, ECMWF delivers vast amounts of weather and climate data that inform decisions worldwide. But in a system that never pauses, how do we ensure that data remain reliable, consistent and trusted at every stage?

From wind to waves: how ECMWF forecasts ocean waves

8 June 2026

On World Oceans Day, explore how ECMWF forecasts ocean waves by capturing the changing interactions between winds, ocean currents and sea ice.

More than data: services enabling Europe’s growing user community

28 May 2026

ECMWF’s growing data ecosystem helps hundreds of thousands of users worldwide access, understand and apply complex Earth system information at scale.

Driving innovation in data provision – the Data Stores Service

19 May 2026

ECMWF’s Data Stores Service provides a unified gateway to weather, climate and environmental data, enabling fast, scalable and cloud-based access for research, analysis and operational applications worldwide.

Data without friction – ECMWF’s multi-faceted approach to improving data usability

11 May 2026

ECMWF makes vast Earth system data findable and usable by applying FAIR principles, standards, and tools, enabling seamless discovery, access, and integration for diverse users.

Data sovereignty in practice: ECMWF infrastructure for European services

23 April 2026

ECMWF operates a Europe-based sovereign computing and data ecosystem that delivers global-scale weather and climate intelligence through open platforms, high-performance computing, and secure, distributed infrastructure.

Minutes matter: how ECMWF delivers time-critical data at global scale

9 April 2026

ECMWF delivers vast volumes of critical weather and climate data in near real time, enabling timely warnings, decisions and responses worldwide.

Data friction and the user experience: a framework for improvement

30 March 2026

ECMWF’s shift to open data highlights how reducing ‘data friction’ – from licensing to formats – unlocks greater value, expands access, and supports sustainable, scalable use of high‑quality weather information.

The living archive: inside ECMWF’s exabyte-scale meteorological data repository

23 March 2026

From gigabytes to exabytes, MARS has evolved into a living archive powering forecasting, research and European programmes, delivering vast volumes of meteorological data to a global user community.

Powering the AI weather revolution: from ERA5 to AI-ready pipelines

16 March 2026

AI is transforming weather and climate prediction and Europe is leading the way with high-quality datasets, shared infrastructure, and operational frameworks.

ECMWF's data infrastructure and services: ready for the era of Common European Data Spaces

3 March 2026

Umberto Modigliani, Emma Pidduck and Stephan Siemen explain how ECMWF’s modern data infrastructure, open services and cloud‑based systems position the Centre to support and lead Europe’s emerging Common European Data Spaces.

Fact sheet: Sub-seasonal and seasonal predictions

22 July 2025

ECMWF issues sub-seasonal weather predictions up to 46 days ahead. They are ensemble forecasts, and they show predicted week-to-week changes in the weather. Seasonal predictions are ensemble forecasts, too, and they are mainly issued up to seven months ahead.

Unlocking the black box: the potential of explainable AI in geoscience

21 July 2025

The lack of transparency in many AI models in geoscience poses a barrier to their adoption. Revealing the factors that influence their actions, referred to as ‘Explainable Artificial Intelligence’ (XAI), demystifies how they work.

Fact sheet: Earth system data assimilation

15 July 2025

The quality of weather forecasts crucially depends on our ability to accurately estimate the current state of the Earth system. This Q&A explains how Earth system data assimilation enables us to make such estimates.

ECMWF at the Living Planet Symposium 2025

20 June 2025

We are participating in the 2025 Living Planet Symposium from 23 to 27 June. Find out about our booth and which sessions our staff are involved in as speakers, poster presenters and conveners.

ECMWF at the EGU General Assembly 2025

25 April 2025

We are participating in the European Geosciences Union (EGU) General Assembly from 27 April to 2 May. Find out which sessions our staff are involved in as speakers, poster presenters and conveners.

Fact sheet: ECMWF and the EU’s Destination Earth initiative

18 December 2024

Destination Earth (DestinE) is an ambitious initiative of the European Union to develop a highly accurate digital twin of the Earth system by 2030. ECMWF is one of three entrusted entities to implement it by delivering digital twins and the Digital Twin Engine.

Storm Boris and European flooding September 2024

23 October 2024

In this article we look at the exceptional rainfall and flooding associated with storm Boris and discuss how well the forecasts from ECMWF and the European Flood Awareness System anticipated the event.

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