activity
20242026
collaborators

8 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

An update to ECMWF's machine-learned weather forecast model AIFS

Gabriel Moldovan, Ewan Pinnington, Ana Prieto Nemesio +18

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 thr…

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…