What question did this study set out to answer?

The aim is to evaluate the scientific benefits and user requirements for the EPS-Aeolus program.

April 16, 2026

Scientific activities at EUMETSAT for the proposed EPS-Aeolus programme

TFThomas FlamentEuropean Organisation for the Exploitation of Meteorological Satellites RBRégis BordeEuropean Organisation for the Exploitation of Meteorological Satellites SJSauli JoroEuropean Organisation for the Exploitation of Meteorological Satellites

Puntos clave

The aim is to evaluate the scientific benefits and user requirements for the EPS-Aeolus program.
Analyzed scientific studies related to EPS-Aeolus and its planned satellites.
Tested the impact of simulated data on numerical weather prediction systems.
Estimated improvements in forecasting accuracy with new system data.
Forecast improvements from EPS-Aeolus are expected to be twice those of ESA's Aeolus data.
Consistent enhancements in prediction accuracy were observed through estimation studies.

Resumen

EPS-Aeolus is the EUMETSAT proposed program to follow-up the successful Earth Explorer Aeolus launched by ESA in 2018. EPS-Aeolus will exploit Aeolus-2 satellites designed by ESA. This paper presents the scientific aspects of the future system, focusing on the scientific studies and the current user requirements. Studies focused on the expected benefits of a future EPS-Aeolus system, by testing the added value of simulated data in Numerical Weather Prediction (NWP) systems. The two impacts estimation studies showed consistent improvement in the forecasts, expected to be roughly twice as large as the improvement brought by the assimilation of ESA's Aeolus data. The user requirements are based on recommendations from ESA's Aeolus Science Advisory Group and EUMETSAT's EPS-SG requirements.

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