| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
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. | Limb-scanning IR spectrometer |  |
AHSI
The Advanced Hyperspectral Imager | Operational
| Greenhouse Gases (CO2, CH4, N2O, etc), Atmospheric Pollutants (NO2, SO2, HCHO, etc) | n/a | |
AIRS
Atmospheric Infra-red Sounder | Operational
+/-1.2 % | 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 | |
EMIT
Earth Surface Mineral Dust Source Investigation | Operational
| Imaging spectroscopy from the visible to short wavelength infrared (VSWIR) to determine surface mineral compostion in the Earth's arid land dust source regions. | High-resolution nadir-scanning SW spectrometer | |
GAS
Greenhouse gases Absorption Spectrometer | Operational
| Measures greenhouse gases. | High-resolution nadir-scanning SW spectrometer | |
HSI
Hyperspectral Imager | Operational
| Detailed monitoring and characterization of rock and soil targets, vegetation, inland and coastal waters on a global scale. | n/a | |
HYC
HYperspectral Camera | Operational
| Hyperspectral data for complex land ecosystem studies. | n/a | |
IASI
Infrared Atmospheric Sounding Interferometer | Operational
+/-20 % | 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 | |
IKFS-2
IR-Fourier spectrometer | Operational
| Atmospheric temperature/humidity profiles, data on cloud parameters, water vapour & ozone column amounts, surface temperature. | High-resolution nadir-scanning IR spectrometer | |
iSIM-90 imager
iSIM-90 imager | Operational
| | n/a | |
OMI
Ozone Measuring Instrument | Operational
| Mapping of ozone columns, key air quality components (NO2, SO2, BrO, OClO and aerosols), measurements of cloud pressure and coverage, global distribution and trends in UV-B radiation. | High-resolution nadir-scanning SW spectrometer | |
TANSO-FTS
Thermal And Near infrared Sensor for carbon Observation - Fourier Transform Spectrometer | Operational
+/-0.5 % | CO2 and CH4 distribution. | High-resolution nadir-scanning IR spectrometer | |
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 | |
TROPOMI
TROPOMI | Operational
+/-2 % | Supporting atmospheric composition and air quality monitoring services. | High-resolution nadir-scanning SW spectrometer | |
ACX
GeoXO Atmospheric Composition Instrument | Being developed
| | n/a | |
AIRMO Spectrometer
AIRMO Spectrometer | Being developed
| Precise and close to real-time data on CH4 and CO2 emissions | High-resolution nadir-scanning IR spectrometer | |
CO2I
Integrated CO2 & NO2 Imaging spectrometer | Being developed
| Pushbroom scanning spectrometer to provide relatively high spatial resolution CO2, CH4 and NO2 observations in support of estimating anthropogenic emissions of CO2 and CH4 in Copernicus. In addition, high quality NO2 and solar-induced fluorescence will be operationally delivered. | High-resolution nadir-scanning SW spectrometer | |
CWFMS
Canadian Wildland Fire Monitoring Sensor | Being developed
| Measurements are: Fire Radiative Power (FRP), hotspot locations, rate of spread, burned area mapping. Data products generated: 1) Fire maps, showing location, extent, and timing of forest fire events; 2) Fire characteristics, such as fire line intensity, rate of spread and fuel consumption; 3) Plume dynamics through smoke transport maps and plume heights; 4) Mass of carbon released into atmosphere. | n/a | |
IASI-NG
Infrared Atmospheric Sounding Interferometer - New Generation | Being developed
+/-12 % | 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. Provides information on aeorols and cloud: fractional coverage, phase, cloud top height (input to Polar AMVs) and particle size. Prime applications: NWP, AC/AQ, climate. Secondary applications: NWC, land/ocean surface monitoring. IASI-NG will resume IASI role as internationl standard for satellite inter-calibration (GSICS). | n/a | |
Micro-LiDaR
Micro-LiDAR | Being developed
| | n/a | |
TANSO-3
Total Anthropogenic and Natural emissions mapping SpectrOmeter-3 | Being developed
| Global and regional concentration mapping of CO2, CH4, and NO2 for global monitoring of GHG concentrations, verification of emission inventories, and detection of emissions from large sources. | High-resolution nadir-scanning IR spectrometer | |
UVSQ-Sat NG Spectrometer
UVSQ-Sat NG Spectrometer | Being developed
| This NIR Spectrometer fits within a volume of less than 1 unit (10 × 10 × 10 cm) and has a 15 mm aperture. It is composed of a 300 groves/mm grating and an Indium Gallium Arsenide (InGaAs) linear image sensor equipped with a Peltier thermoelectric cooler, offering integration times ranging from 0.5 to 4 s. Improved results (GHG observations) can be achieved if the Uvsq-Sat NG NIR Spectrometer temperature is maintained below −5 °C. | n/a | |
IPDA LIDAR
Integrated Path Differential Absorption Light Detection and Ranging Instrument | Approved
+/-2 % | 'Active' optical remote sensing instrument for atmospheric parameters or trace gases. Global information on atmospheric Methane
concentration (Methane column density
measurements). | n/a | |
IKFS-3
Advanced Fourier spectrometer | Proposed
| Atmospheric temperature/humidity profiles, data on cloud parameters, water vapour & ozone column amounts, surface temperature. | High-resolution nadir-scanning IR spectrometer | |
ScepterSat Instrument
ScepterSat Instrument | Proposed
| | n/a | |
TGSP
Trace Gas Spectrometer | Proposed
| Trace gas measurements. | n/a | |
HiRDLS
High Resolution Dynamics Limb Sounder | No longer operational
+/-1 % | Measures atmospheric temperature, concentrations of ozone, water vapour, methane, NOx, N2O, CFCs and other minor species, aerosol concentration, location of polar stratospheric clouds and cloud tops. Currently not collecting data on Aqua. | Limb-scanning IR spectrometer | |
TES
Tropospheric Emission Spectrometer | No longer operational
+/-0.7 % | 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 | |