The following new observations have been activated in the operational ECMWF assimilation systems during July – September 2023.
| Observations | Main impact | Activation date |
|---|---|---|
| Ozone retrievals from NOAA-20 OMPS | Ozone analysis in numerical weather prediction | 5 July 2023 |
| Radiances from NOAA-21 ATMS | Temperature, humidity, dynamics | 23 August 2023 |
| Radio occultation bending angles from PlanetIQ | Temperature in upper troposphere/lower stratosphere | 12 September 2023 |