ECV Products and Requirements for Ozone
These products and requirements reflect the Implementation Plan 2016 (GCOS-200). GCOS is reviewing and will update the requirements until 2022. More information on: gcos.wmo.int.
| PRODUCT | DEFINITION | FREQ. | RESOLUTION | REQUIRED MEASUREMENT UNCERTAINTY | STABILITY | STANDARDS/ REFERENCES |
| Total column ozone | Molecules of O3 in the atmosphere from surface to TOA (Dobson units) | 4hr | 20-50km/ NA | Max(2%;5DU) | 1% | |
| Tropospheric Ozone | Dry air mole fraction of O3 in the troposphere (Mol/mol) | 4hr | 20-50km/ 5km | 10-15% | 2% | |
| Ozone profile in upper troposphere and lower stratosphere | Dry air mole fraction of O3 in upper troposphere and lower stratosphere (Mol/mol) | 4hr | 100-200km/ 1-2km | 10% | 2% | |
| Ozone profile in upper strato-and mesosphere | Dry air mole fraction of O3 in upper strato- and mesosphere (Mol/mol) | daily | 100-200km/ 3km/ | 5-20% | 2% |
