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CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
Measurements
>
Atmosphere
>
Trace gases (excluding ozone)
>
CHOCHO (column/profile)
Measurement Definition*: CHOCHO = Physical unit: [ ppm ] - Accuracy unit: [ % ].
Instrument
Status/
Accuracy
Instrument Description
Measurement Technology
Timeline
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
* Description adapted from WMO.