| CEOS EO HANDBOOK – MEASUREMENT INSTRUMENTS
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Measurements > Atmosphere >
Trace gases (excluding ozone) >
CO Total Column
  | Measurement Definition*: 2D field of total amount of CO molecules per unit area in an atmospheric column extending from the Earth’s surface to the upper edge of the atmosphere - Measuring Units molecules.cm-2, Uncertainty Units % |
| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
IASI
Infrared Atmospheric Sounding Interferometer | Operational
+/-10 % | 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 | |
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 | |
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* Description adapted from WMO.
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