The following new observations have been activated in the operational ECMWF assimilation systems during October 2025 – March 2026.
| Observations | Main impact | Activation date |
|---|---|---|
|
Radio occultation bending angles from PlanetIQ YAM-8 |
Temperature and winds in upper troposphere/lower stratosphere |
13 Nov 2025 |
|
All-Sky Radiances (ASRs) from Meteosat-12 (replacing Meteosat-10) |
Tropospheric humidity and wind |
20 Nov 2025 |
|
Radio occultation bending angles from Metop-D |
Temperature and winds in upper troposphere/lower stratosphere |
11 March 2026 |