Sensor · Spaceborne

Atmospheric Infrared Ultra-spectral spectrometer

SWIR/MWIR/TIR atmospheric infrared ultra-spectral limb/solar-occultation spectrometer on GF-5 for atmospheric chemistry profiles including O3, H2O, NO, N2O, NO2, CO, and CO2.

Sensor

AIUS is a passive optical atmospheric sounder on Gaofen-5/GF-5 that uses SWIR, MWIR, and TIR spectroscopy for atmospheric chemistry profiling.^[1] It measures species including O3, H2O, NO, N2O, NO2, CO, and CO2, with a 2.4-13.3 um spectral range and 0.03 cm-1 spectral resolution.^[1] The instrument performs atmospheric limb and solar-occultation sounding, demonstrated on Gaofen-5.^[1]

Where this fits, supply chain

Compositional position

Gaofen-5 (GF-5) ——— this payload

this ——— Gaofen-5 (GF-5) (Ended) flies on

Methods this sensor implements

Demonstrated

Atmospheric limb soundingvia Gaofen-5 (GF-5)
AIUS is an infrared limb/solar-occultation ultra-spectral sounder for atmospheric chemistry profiles.

Capable, undemonstrated

None on record.

Topics this relates to

Stratospheric ozone Atmospheric limb sounding(demonstrated)well suited

Air quality Atmospheric limb sounding(demonstrated)adequate

Shipping emissions Atmospheric limb sounding(demonstrated)adequate

CO2 Atmospheric limb sounding(demonstrated)marginal

Sources

[1]WMO OSCAR instrument record: AIUSagency doc2026-06-16
[2]CEOS MIM mission summary: GF-5agency doc2026-06-16
[3]Assessment of Spectra of the Atmospheric Infrared Ultraspectral Sounderpeer reviewed2026-06-16

Cite https://eo-atlas.org/products/sensor/aius Markdown twin → Field definitions →