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


Measurement Definition*: CO = Carbon monoxide. Requested from surface to low stratosphere (layers: LT, HT, LS) + Total column - Physical unit: [ ppm ] - Accuracy unit: [ % ].
InstrumentStatus/
Accuracy
Instrument DescriptionMeasurement TechnologyTimeline
ACE-FTS
Atmospheric Chemistry Experiment (ACE) Fourier Transform Spectrometer
Operational
Measure and understand the chemical processes that control the distribution of ozone in the Earth's atmosphere, especially at high altitudes.n/a
AIRS
Atmospheric Infra-red Sounder
Operational
High spectral resolution measurement of temperature and humidity profiles in the atmosphere. Long-wave Earth surface emissivity. Cloud diagnostics. Trace gas profiles. Surface temperatures.n/a
IASI
Infrared Atmospheric Sounding Interferometer
Operational
Measures tropospheric moisture and temperature, column integrated contents of ozone, carbon monoxide, methane, nitrous oxide and other minor gases which affect tropospheric chemistry. Also measures sea surface and land temperature.n/a
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
MOPITT
Measurements Of Pollution In The Troposphere
Operational
Measurements of CO in the troposphere, running 24/7, 365d of the year.High-resolution nadir-scanning SW spectrometer
SMR
Submillimetre Radiometer
Operational
Measures global distributions of ozone and species of importance for ozone chemistry ClO, HNO3, H2O, N2O, (HO2, H2O2). Measures temperature in the height range 15 - 100 km.n/a
TANSO-FTS-2
Thermal And Near infrared Sensor for carbon Observation - Fourier Transform Spectrometer-2
Operational
CO2, CH4, and CO distribution.High-resolution nadir-scanning IR spectrometer
UVNS (Sentinel-5 precursor)
TROPOMI
Operational
Supporting atmospheric composition and air quality monitoring services.High-resolution nadir-scanning SW spectrometer
IASI-NG
Infrared Atmospheric Sounding Interferometer - New Generation
Being developed
Measures profiles of atmospheric temperature, humidity, ozone, carbon monoxide, columns of methane, nitrous oxide, and other minor gases, and sea, ice, and land surface temperature and emissivity.n/a
Scanning Spectrometer (GeoCarb)
Scanning Spectrometer (GeoCarb)
Being developed
+/-0.01 ppm
GeoCarb Mission employs a 4-channel slit imaging spectrometer that measures reflected IR sunlight at wavelengths 1.61µm and 2.06µm for XCO2, and 2.32µm for XCH4 and XCO. The fourth channel, 0.76µm, measures O2 column concentration and SIF, and it also provides valuable information on aerosol and cloud contamination. The North/South (N/S) extent of the scan is fixed at a 4.4° field of view, which maps to 25° latitude or 2800 km at the Sub-Satellite Point (SSP). There are 1016 N/S samples with 4.1 km spatial resolution, spaced 2.7 km apart on center. The measurements are acquired in an East to West (E/W), 0.3825s step, and 4.08s stare (integration) mode, with 3 km sampling EW steps and 5.4 km resolution at SSP.High-resolution nadir-scanning SW spectrometer
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.High-resolution nadir-scanning SW spectrometer
UVN
UV-VIS-NIR Sounder
Approved
Measurements of atmospheric trace gases, mainly O3, NO2, SO2, H2CO. The product list is not yet approved, the accuracy summary column lists the breakthrough user requirements.High-resolution nadir-scanning SW spectrometer
CO Sensor (ASCENDS)
CO Sensor (ASCENDS)
Proposed
Measure the total column CO concentration.n/a
IR Correlation Radiometer (GeoCape)
IR Correlation Radiometer (GeoCape)
Proposed
The near-IR and thermal-IR data will describe vertical CO, an excellent tracer of long-range transport of pollution. Identifying large scale vegetation burning events. Characterizing the oxidizing capacity of the atmosphere.n/a
IR Spectrometer (GACM)
IR Spectrometer (GACM)
Proposed
Daytime column measurements of CO in SWIR at 2.4 µm.High-resolution nadir-scanning IR spectrometer
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
TANSO-FTS-3
Thermal And Near infrared Sensor for carbon Observation - Fourier Transform Spectrometer-3
Proposed
CO2, CH4, and CO distribution. High-resolution nadir-scanning IR spectrometer
TGSP
Trace Gas Spectrometer
Proposed
Trace gas measurements.n/a
TES
Tropospheric Emission Spectrometer
No longer operational
3D profiles on a global scale of all infra-red active species from surface to lower stratosphere. Measures greenhouse gas concentrations, tropospheric ozone, acid rain precursors, gas exchange leading to stratospheric ozone depletion.High-resolution nadir-scanning IR spectrometer
* Description adapted from WMO.
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