Tuesday 25 February 2025, A new version of the deterministic model of the artificial intelligence forecasting system (AIFS) has been published and operationally implemented. This update marks a turning point in ECMWF's history, since AIFS Single v1 is the first AIFS model to be rendered fully operational (¹).
In addition to its operational nature, AIFS Single v1 now replaces the previous experimental version v0.2.1. The new version brings changes to the AIFS deterministic model, including :
- Improved performance for high-altitude atmospheric variables.
- Improved results for total precipitation.
- Additional Output Variables, including winds from 100 meters high, snowfall, solar radiation and terrestrial variables such as soil moisture and temperature.
AIFS is the first fully operational open weather forecasting model using machine learning technology with the highest number of parameters. It includes essential fields for users, such as wind and temperature, as well as details on the types of precipitation, From snow to rain. The AIFS grid is currently spaced 28 km."
AIFS v1 model is now used in Weather4D and SailGrib, the available GRIB data remain unchanged. It is updated four times a day.
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(¹) ECMWF's AI forecasts become operational
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