Measurements and Applications
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
Full Name
Atmospheric Chemistry Experiment (ACE) Fourier Transform Spectrometer
Status
Operational
Instrument Agencies
Maturity
Instrument Type
Atmospheric chemistry 
Geometry
Occultation
Instrument Technology
Limb-scanning IR spectrometer
Sampling
Sounding
Data Access
Open Access
Data Format
NetCDF
Accuracy
Depends on species, meets requirements for climate variables
Waveband
SWIR - TIR: 2 - 5.5 µm, 5.5 - 13 µm (0.02 cm-1 resolution)
| SWIR (~1.3 µm - ~3.0 µm) |
| MWIR (~3.0 µm - ~6.0 µm) |
| TIR (~6.0 µm - ~15.0 µm) |
| Category | Parameter |
| Aerosols | Aerosol Extinction / Backscatter (column/profile)  |
| Aerosol absorption optical depth (HT, LS, HS&M) |
| Atmospheric Temperature Fields | Atmospheric temperature (LS, HS&M) |
| Height of tropopause |
| Temperature of tropopause |
| Atmospheric Winds | Wind profile (horizontal) |
| Cloud particle properties and profile | Cloud liquid water (column/profile) |
| Ozone | O3 Mole Fraction |
| Trace gases (excluding ozone) | CH4 Mole Fraction |
| CO2 Mole Fraction |
| CO Mole Fraction |
| CFC-11 (HT, LS) |
| CFC-12 (HT, LS) |
| NO (HS&M) |
| NO2 Mole Fraction |
| N2O (HT, LS, HS&M) |
| HNO3 (HT, LS, HS&M) |
| HCl (HT, LS, HS&M) |
| ClONO2 (HT, LS, HS&M) |
| C2H2 (HT) |
| C2H6 (HT, LS) |
| HCFC-22 (HT, LS) |
| N2O5 (LS, HS&M) |
| SF6 (HT, LS) |
| C3H6O Mole Fraction |
| CCl4 Mole Fraction |
| CF4 Mole Fraction |
| CFC-113 Mole Fraction |
| CH3Cl Mole Fraction |
| CH3CN Mole Fraction |
| CH3OH Mole Fraction |
| CHF3 Mole Fraction |
| COCl2 Mole Fraction |
| COClF Mole Fraction |
| COF2 Mole Fraction |
| H2CO Mole Fraction |
| H2O Mole Fraction |
| H2O2 Mole Fraction |
| HCFC-141b Mole Fraction |
| HCFC-142b Mole Fraction |
| HCN Mole Fraction |
| HCOOH Mole Fraction |
| HF Mole Fraction |
| HFC-125 Mole Fraction |
| HFC-134a Mole Fraction |
| HFC-32 Mole Fraction |
| HO2NO2 Mole Fraction |
| HOCl Mole Fraction |
| N2 Mole Fraction |
| O2 Mole Fraction |
| OCS Mole Fraction |