Datasets
A subset of ECMWF real-time forecast data from the IFS and AIFS models is made available to the public free of charge. Their use is governed by the Creative Commons CC-BY-4.0 licence and the ECMWF Terms of Use.
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ECMWF is now running version 2 of its Artificial Intelligence Forecasting System (AIFS). The AIFS consists of a deterministic model, AIFS Single, and an ensemble model, AIFS ENS.
The deterministic model has been running operationally since 25 February 2025 and was upgraded from AIFS Single v1.1 to AIFS Single v2 on 12 May 2026. Further details can be found on the dedicated Implementation of AIFS Single v1 page.
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These products are available to the African Center of Meteorological Application for Development (ACMAD) countries.
Based on HRESThe products outlined below are disseminated via EUMETCast
Please refer to WMO Additional products for the equivalent products available on a global domain via the ECMWF's DCPC FTP server.
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Interval/period: Wed, 01/01/2003 - Sun, 12/31/2017
carbon dioxide
methane
tropospheric ozone
stratospheric ozone
interactions between anthropogenic aerosols and radiation
interactions between anthropogenic aerosols and clouds
Interval/period: Wed, 01/01/2003 - Sun, 12/31/2017
Interval/period: Wed, 01/01/2003 - Thu, 10/31/2024
Interval/period: Wed, 01/01/2003 - Sun, 12/31/2023
irradiation, as well as direct normal irradiation, on a latitude/longitude grid
covering land surfaces and coastal areas of Europe, Africa, Oceania, Eastern
South America, the Middle East and South-East Asia. It is created from 15 minute
resolved timeseries at each grid point. These timeseries were calculated by the
CAMS Solar Radiation Time Series Service and use information on aerosol, ozone
Interval/period: Sat, 01/01/2005 - Sun, 12/31/2023
Interval/period: Tue, 01/01/2013 - Tue, 12/31/2024
Interval/period: Wed, 01/01/2003 - Wed, 12/03/2025
Interval/period: Sat, 01/01/2000 - Thu, 12/31/2020
Interval/period: Wed, 01/01/2003 - Thu, 12/31/2020
Interval/period: Wed, 01/01/2003 - Thu, 12/31/2020
Interval/period: Mon, 01/01/1979 - Wed, 12/31/2025
ECMWF has adopted an open data policy, with the objective of expanding free and equitable access to high‑quality numerical weather prediction data for the global meteorological community. This shift supports the socio‑economic benefits of weather and climate information and aligns with WMO policies on international data exchange and capacity development for National Meteorological and Hydrological Services (NMHSs).
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Interval/period: Thu, 01/01/2004 - Tue, 06/30/2026
CAMS produces specific daily air quality analyses and forecasts for the European
domain at significantly higher spatial resolution (0.1 degrees, approx. 10km)
than is available from the global analyses and forecasts. The production is
based on an ensemble of eleven air quality forecasting systems across Europe. A
median ensemble is calculated from individual outputs, since ensemble products
Interval/period: Tue, 06/27/2023 - Wed, 07/01/2026
stations after optimisation using a statistical post-processing method called
Model Output Statistics (MOS). The unoptimised "raw" forecasts are also
provided in the same format.
The MOS method uses machine learning with predictive variables including
background air quality observation datasets, ECMWF meteorological forecasts and
the "raw" CAMS European air quality ensemble median forecast. The result is
Interval/period: Wed, 01/17/2024 - Wed, 07/01/2026
Interval/period: Thu, 01/01/2015 - Wed, 07/01/2026
CAMS Global atmospheric composition forecast production system is used to produce the daily forecasts of pollutants, aerosols and greenhouse gases across the globe. Satellite observations of atmospheric composition are merged with a detailed computer simulation of the atmosphere using a method called data assimilation. The resulting analyses, i.e.
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Interval/period: Fri, 03/01/2024 - Wed, 07/01/2026