activity
20202026
most citedUsing machine learning to correct model error in data assimilation and forecast applications

156 citations · 162 across the 10 of their papers we have counts for

collaborators

10 papers

physics.ao-ph2026

Global reanalysis from observations alone with machine learning

Peter Lean, Ewan Pinnington, Patrick Laloyaux +9

Earth system reanalysis datasets are foundational for weather and climate research and provide the gridded training data used by most machine learning weather prediction systems. H…

physics.ao-ph2026

AIFS-DOP: End-to-End Medium-Range Weather Prediction from Observations Alone with Machine Learning

Ewan Pinnington, Peter Lean, Mihai Alexe +8

We introduce the Artificial Intelligence Forecasting System for Direct Observation Prediction (AIFS-DOP). AIFS-DOP is trained on a 40-year harmonized dataset of gridded observation…

physics.ao-ph2025

Using data assimilation tools to dissect GraphDOP

Patrick Laloyaux, Mihai Alexe, Eulalie Boucher +5

The Data Assimilation (DA) community has been developing various diagnostics to understand the importance of the observing system in accurately forecasting the weather. They usuall…

physics.ao-ph2025

Learning Coupled Earth System Dynamics with GraphDOP

Eulalie Boucher, Mihai Alexe, Peter Lean +7

Interactions between different components of the Earth System (e.g. ocean, atmosphere, land and cryosphere) are a crucial driver of global weather patterns. Modern Numerical Weathe…

physics.ao-ph2025

Learning from nature: insights into GraphDOP's representations of the Earth System

Peter Lean, Mihai Alexe, Eulalie Boucher +5

Through a series of experiments, we provide evidence that the GraphDOP model - trained solely on meteorological observations, using no prior knowledge - develops internal represent…

physics.ao-ph2024★ 3 cited

GraphDOP: Towards skilful data-driven medium-range weather forecasts learnt and initialised directly from observations

Mihai Alexe, Eulalie Boucher, Peter Lean +11

We introduce GraphDOP, a new data-driven, end-to-end forecast system developed at the European Centre for Medium-Range Weather Forecasts (ECMWF) that is trained and initialised exc…

stat.ML2022★ 3 cited

Online model error correction with neural networks in the incremental 4D-Var framework

Alban Farchi, Marcin Chrust, Marc Bocquet +2

Recent studies have demonstrated that it is possible to combine machine learning with data assimilation to reconstruct the dynamics of a physical model partially and imperfectly ob…

stat.AP2022

Estimating Model Error Covariances with Artificial Neural Networks

Massimo Bonavita, Patrick Laloyaux

Methods to deal with systematic model errors are an increasingly important component of modern data assimilation systems and their effectiveness has increased in recent years thank…

stat.ML2021

A comparison of combined data assimilation and machine learning methods for offline and online model error correction

Alban Farchi, Marc Bocquet, Patrick Laloyaux +2

Recent studies have shown that it is possible to combine machine learning methods with data assimilation to reconstruct a dynamical system using only sparse and noisy observations…

stat.ML2020★ 156 cited

Using machine learning to correct model error in data assimilation and forecast applications

Alban Farchi, Patrick Laloyaux, Massimo Bonavita +1

The idea of using machine learning (ML) methods to reconstruct the dynamics of a system is the topic of recent studies in the geosciences, in which the key output is a surrogate mo…