| CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
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Measurements > Atmosphere >
Trace gases (excluding ozone) >
OClO (column/profile)
  | Measurement Definition*: OClO = chlorate. Physical unit: [ ppm ] - Accuracy unit: [ % ]. |
| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
SAGE-III
Stratospheric Aerosol and Gas Experiment | Operational
| Limb-viewing measurements of aerosol, O3, H20, NO2, OClO, NO3, temperature and pressure in the stratosphere, upper troposphere, and mesosphere using solar occultation, lunar occultation and limb scatter measurement techniques. | n/a | |
UVNS (Sentinel-5)
Ultra-violet Visible Near-infrared Shortwave-infrared spectrometer | Being developed
| Supporting atmospheric composition and air quality monitoring services. Measurements of atmospheric trace gases, primarily O3, NO2, SO2, HCHO, CH4 and CO. | n/a | |
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* Description adapted from WMO.
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