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An update to ECMWF's machine-learned weather forecast model AIFS
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An update to ECMWF's machine-learned weather forecast model AIFS
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An update to ECMWF's machine-learned weather forecast model AIFS
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Paper
An update to ECMWF's machine-learned weather forecast model AIFS
2025
Overview
We present an update to ECMWF's machine-learned weather forecasting model AIFS Single with several key improvements. The model now incorporates physical consistency constraints through bounding layers, an updated training schedule, and an expanded set of variables. The physical constraints substantially improve precipitation forecasts and the new variables show a high level of skill. Upper-air headline scores also show improvement over the previous AIFS version. The AIFS has been fully operational at ECMWF since the 25th of February 2025.
Publisher
Cornell University Library, arXiv.org
Subject
