| CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
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Measurements > Atmosphere >
Trace gases (excluding ozone) >
BrO (column/profile)
  | Measurement Definition*: BrO = Bromine monoxide. Requested from surface to TOA (layers: LT, HT, LS, HS&M) - Physical unit: [ ppm ] - Accuracy unit: [ % ]. |
| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
MLS (EOS-Aura)
Microwave Limb Sounder (EOS-Aura) | Operational
| Measures lower stratospheric temperature and concentration of H2O, O3, ClO, HCl, OH, HNO3, N2O and SO2. | Limb-scanning MW spectrometer | |
NACHOS Hyperspectral Imager
NACHOS Hyperspectral Imager | Operational
| | n/a | |
OSIRIS
Optical Spectrograph and Infra-Red Imaging System | Operational
| Detects aerosol layers and abundance of species such as O3, NO2, OClO, BrO and NO. Consists of spectrograph and IR imager. | n/a | |
UVNS (Sentinel-5 precursor)
TROPOMI | Operational
| Supporting atmospheric composition and air quality monitoring services. | 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 | |
UVN (Sentinel-4)
UV-visible- near infrared imaging spectrometer (Sentinel-4) | Proposed
| Supporting atmospheric composition and air quality monitoring services. | n/a | |
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* Description adapted from WMO.
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