‘Artificial Intelligence and Machine Learning to improve surface weather forecasts’ – webinar – 9 November 2021

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On November 9th from 3.30 pm to 5 pm (CET), IFAB, in collaboration with ECMWF, will present the research project “Empirical modeling of 2m temperature and 10m wind”.


Francesco Ubertini, IFAB President

Sanzio Bassini, IFAB Technical-Scientific Coordinator
Florence Rabier, ECMWF Director-General
Carlo Cacciamani, ItaliaMeteo Director

Peter Dueben, ECMWF Coordinator for Machine Learning and AI Activities
Fenwick Cooper , ECMWF Visiting scientist


Live stream event. The event will be held in English.

About the project:

The research project, realised by ECMWF (European Centre for Medium-Range Weather Forecasts) and supported by IFAB (International Foundation Big Data and Artificial Intelligence for Human Development) aims to reduce errors in the surface weather forecasts. Three machine learning algorithms are applied to model errors in the ECMWF operational 0-48 hour forecasts of temperature at 2m above the surface and wind at 10m above the surface. A reduction in global root-mean-squared error of between 5 and 15%, depending upon season, is observed. 1 year of training data and 3 months of verification data between December 2019 and May 2021 is used for each of four seasons. The three machine learning algorithms used are linear regression (of cubic polynomial functions), the random forest and a 3-layer neural network. Each algorithm returns similar error reduction perhaps indicating that they are all approximating the same physics. Examining errors at individual stations indicates large scale regions where error reduction is robust. Large regions where error reduction was non-existent or increased and individual stations where the error substantially increased also exist. Atmospheric variability, excessive model extrapolation and reduced station data quality are identified as three possible explanations.

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