CHOCHO (column/profile) Measurements Made by Earth Observation Satellites

CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS

Measurements > Atmosphere >
Trace gases (excluding ozone) >
CHOCHO (column/profile)

Measurement Definition*: 2D field of total amount of CHOHO molecules per unit area in an atmospheric column extending from the Earth’s surface to the upper edge of the atmosphere. Physical unit: [ ppm ], Accuracy unit: [%]

Instrument	Status/ Accuracy	Instrument Description	Measurement Technology	Timeline
UVN (Sentinel-4) UV-visible- near infrared imaging spectrometer (Sentinel-4)	Being developed	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, CO, CHOCHO as well as Aerosols and UV Index.	n/a

* Description adapted from WMO.