Welcome to the homepage for the Atmospheric Chemistry Experiment
The Atmospheric Chemistry Experiment (ACE) is a satellite mission on-board the Canadian satellite SCISAT that takes measurements of the Earth's atmosphere.
The measurements consist of spectra and images that are used to investigate chemical and dynamical processes in our atmosphere, with a particular emphasis on ozone depletion in the Arctic stratosphere.
Dr. Peter Bernath from the Department of Chemistry at the University of Waterloo is the Mission Scientist.
Recent Publications using ACE data:
Clouser, et al.
A systematic comparison of ACE-FTS δD retrievals with airborne in situ sampling
Atmospheric Measurement Techniques, 19(), 1147, ; doi: 10.5194/amt-19-1147-2026
Fu, et al.
Global stratospheric methane loss from satellite observations
Proceedings of the National Academy of Sciences, 123(), e2529774123, ; doi: 10.1073/pnas.2529774123
Gkouvelis, et al.
A Closed-form Analytical Theory of Nonisobaric Transmission Spectroscopy for Exoplanet Atmospheres
The Astrophysical Journal, 997(), 307, ; doi: 10.3847/1538-4357/ae3246
Gurganus, et al.
Constraining the Stratospheric Sulfate Budget in Global Models: Insights from In Situ OCS Measurements During 2023 SABRE and Comparison with Satellite, Balloon and Surface Data
Geophysical Research Letters, 53(), e2025GL117405, ; doi: 10.1029/2025GL117405
Richards, et al.
Validation of SNPP OMPS limb profiler version 2.6 ozone profile retrievals against correlative satellite and ground based measurements
Atmospheric Measurement Techniques, 19(), 529, ; doi: 10.5194/amt-19-529-2026
Vervalcke, et al.
Atmospheric lifetime of sulphur hexafluoride (SF6) and five other trace gases in the BASCOE model driven by three reanalyses
Atmospheric Chemistry and Physics, 26(), 391, ; doi: 10.5194/acp-26-391-2026
Konopka, et al.
Isentropic mixing vs. convection in CLaMS-3.0/MESSy: evaluation using satellite climatologies and in situ carbon monoxide observations
Atmospheric Chemistry and Physics, 25(), 17973, ; doi: 10.5194/acp-25-17973-2025
Li, et al.
Assessing the Accuracy of Global HFC-134a Satellite Observations from Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) via Aircraft, Balloon, and Model Comparisons
Environmental Science & Technology, 60(), 959, ; doi: 10.1021/acs.est.5c13191
Wyatt, et al.
Atmospheric Chemistry Experiment (ACE) v.5.3 winds: validation and model comparisons
Atmospheric Measurement Techniques, 18(), 7387, ; doi: 10.5194/amt-18-7387-2025
Dodangodage, et al.
Atmospheric ethylene (C2H4) observations from the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS)
Journal of Quantitative Spectroscopy and Radiative Transfer, 346(), 109603, ; doi: 10.1016/j.jqsrt.2025.109603