THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
Measurements > Atmosphere >
Trace gases (excluding ozone) >
Atmospheric Chemistry - SO2 (column/profile)


Measurement Definition*: SO2 = Sulfur dioxide. Requested from surface to lower stratosphere (layers: LT, HT, LS) + Total column - Physical unit: [ ppm ] for profile, units of [1.3×1015 cm-2 ] for total column - Accuracy unit: [ % ] for profile, [1.3×1015 cm-2 ] for total column.
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
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.n/a
UVNS (Sentinel-5 precursor)
TROPOMI
Operational
Supporting atmospheric composition and air quality monitoring services.n/a
GEMS
Geostationary Environmental Monitoring Spectrometer
Being developed
Measurements of atmospheric chemistry, precursors of aerosols and ozone in particular, in high temporal and spatial resolution over Asia.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
Microwave limb sounder (GACM)
Microwave limb sounder (GACM)
Proposed
Limb-viewing measurements of O3, N2O, temperature, water vapour, CO, HNO3, ClO, and volcanic SO2 in the.n/a
UV Spectrometer (GACM)
UV Spectrometer (GACM)
Proposed
Daytime measurements of O3, NO2, SO2, CH2O, and aerosols.n/a
UV/Vis Near IR Wide Imaging Spectrometer (Geo-Cape)
UV/Vis Near IR Wide Imaging Spectrometer (Geo-Cape)
Proposed
Measures natural and human-produced gases and aerosols in the atmosphere, including those that react in sunlight to form polluting low-level ozone.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.
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