| Instrument | Status/
Accuracy | Instrument Description | Measurement Technology | Timeline |
| ACE-FTS | Operational | Measure and understand the chemical processes that control the distribution of ozone in the Earth's atmosphere, especially at high altitudes. Monitoring the Canadian Environmental Protection Act (CEPA), the UN Montreal Protocol, and Paris Climate Agreement. Contribute to GoC Methane Pledge | Limb-scanning IR spectrometer |  |
| AHSI | Operational | Greenhouse Gases (CO2, CH4, N2O, etc), Atmospheric Pollutants (NO2, SO2, HCHO, etc) | n/a | |
| EMI-2 | Operational | Ozone profile and total-column or gross profile of other species. Tracked species: BrO, ClO H2O, HCHO, NO, NO2, O3, SO2 and aerosol | n/a | |
| GEMS | Operational | Measurements of atmospheric chemistry, precursors of aerosols and ozone in particular, in high temporal and spatial resolution over Asia. | n/a | |
| LMI | Operational | Lightning mapping for locating thunder storms in flooding season, CMOS camera operating 0.77 µm to count flashes and intensity. | n/a | |
| MAESTRO | Operational | Chemical processes involved in the depletion of the ozone layer, and now including a high quality water vapour data product. | Limb-scanning SW spectrometer | |
| OMS-L | Operational | Ozone total column vertical profile measurements. | Limb-scanning SW spectrometer | |
| OMS-N | Operational | OMSN uses ultraviolet-to-visible hyperspectral measurements to detect atmospheric components such as O₃, SO, NO₂, HCHO and aerosols. | High-resolution nadir-scanning SW spectrometer | |
| SAGE-III | Operational | Limb-viewing measurements of aerosol, O3, H20, NO2, OClO, NO3, temperature and pressure in the stratosphere, upper troposphere, and mesosphere using solar occultation, lunar occultation and limb scatter measurement techniques. | Limb-scanning SW spectrometer | |
| Spectrometer (TEMPO) | Operational | Hourly measurements of air pollution over North America, from Mexico City to the Canadian oil sands, at high spatial resolution. Measurements in ultraviolet and visible wavelengths will provide a suite of products including the key elements of tropospheric air pollution chemistry. Will be part of the first global geostationary constellation for pollution monitoring, along with European and Korean missions now in development. | High-resolution nadir-scanning SW spectrometer | |
| TROPOMI | Operational | Supporting atmospheric composition and air quality monitoring services. | High-resolution nadir-scanning SW spectrometer | |
| UVN (Sentinel-4) | Operational | Supporting atmospheric composition and air quality monitoring services. | n/a | |
| UVNS (Sentinel-5) | Operational | 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. | High-resolution nadir-scanning SW spectrometer | |
| ACGS-2 | Being developed | CO2 and CH4 monitoring. | n/a | |
| ALTIUS Instrument | Being developed | A high-resolution 2D imager that observes ozone from side-on, at Earth's limb or atmospheric boundary. This limb-sounding technique allows ozone to be viewed at different altitudes, thereby providing vertical profiles of different ozone concentrations. The instrument uses three independent spectral imagers that operate in the ultraviolet, visible and near-infrared, achieving global coverage in a three-day revisit cycle. | n/a | |
| EnSAC | Being developed | Monitoring CH4, NO2, CO2 | n/a | |
| H3Imager | Being developed | Target GHG emission hot spots from localised sources with a 50 km swath and 500 m resolution. | n/a | |
| Hot Spot Tracer | Being developed | Monitoring elements: CO2, CH4, NO2 | n/a | |
| Uwhigo | Being developed | Monitor greenhouse gases (GHGs) and nitrogen dioxide | n/a | |
| HiRDLS | No longer operational | 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 | |