Hcl (Column/Profile)
Measurement Instruments
Measurement Definition: HCl = Hydrogen chloride. Requested from mid-troposphere to TOA (layers: HT, LS, HS&M) - Physical unit: [ ppm ] - Accuracy unit: [ % ].
| 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. | n/a |  |
| MLS (EOS-Aura) | Operational | Measures lower stratospheric temperature and concentration of H2O, O3, ClO, HCl, OH, HNO3, N2O and SO2. | Limb-scanning MW spectrometer | |