CEOS EO HANDBOOK – INSTRUMENT SUMMARY - ALTIUS Instrument -
Full Name ALTIUS Instrument Status Being developed
Instrument Agencies ESA Maturity
Instrument Type Atmospheric chemistry Geometry
Instrument Technology Sampling
Data Access Data Format
Measurements and Applications 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.
Resolution Summary
Swath Summary
Accuracy Summary
Waveband Summary
UV (~0.01 µm - ~0.40 µm)
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
Instrument Measurements
Measurements Overview
CategoryParameter
OzoneO3 Mole Fraction
Thematic Links Global Climate Observing System Essential Climate Variables (GCOS ECVs)
ECVDescriptionProduct(s)ECV Inventory 3.0 Record(s)
Ozone click here click here search ECV Inventory records
Instrument Missions
ALTIUS - Atmospheric Limb Tracker for Investigation of the Upcoming Stratosphere (ALTIUS) (2025 - 2028)