O3 Tropospheric Column
Measurement Instruments
Measurement Definition: 2D field of total amount of O3 molecules per unit area in an atmospheric column extending from the Earth’s surface to the tropopause - Measuring Units moles.cm-2, Uncertainty Units %
| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
| UVN (Sentinel-4) | Being developed +/-40 % | Supporting atmospheric composition and air quality monitoring services. | n/a |  |
| UVNS (Sentinel-5) | Being developed +/-16 % | Supporting atmospheric composition and air quality monitoring services. Measurements of atmospheric trace gases, primarily O3, NO2, SO2, HCHO, CH4, CO, CHOCHO as well as Aerosols and UV Index. | n/a | |