activity
20242026
collaborators

9 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-ph2026

AIFS-COMPO: A Global Data-Driven Atmospheric Composition Forecasting System

Paula Harder, Johannes Flemming, Mihai Alexe +3

We introduce AIFS-COMPO, a skilful medium-range data-driven global forecasting system for aerosols and reactive gases. Building on the ECMWF Artificial Intelligence Forecast System…

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…