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:
Lellouch, et al.
Pluto's atmosphere gas and haze composition from JWST/MIRI spectroscopy
Astronomy & Astrophysics, 696(), A147, ; doi: 10.1051/0004-6361/202453619
Prather, et al.
Calibrating the Tropospheric Air and Ozone Mass
AGU Advances, 6(), e2025AV001651, ; doi: 10.1029/2025AV001651
Kumar, et al.
A Composite of the Effects of Major Sudden Stratospheric Warming Events on Carbon Dioxide Radiative Cooling in the Mesosphere-Lower-Thermosphere
Journal of Geophysical Research: Space Physics, 130(), e2025JA033941, ; doi: 10.1029/2025JA033941
Grooß, et al.
Chlorine peroxide reaction explains observed wintertime hydrogen chloride in the Antarctic vortex
Communications Earth & Environment, 6(), 496, ; doi: 10.1038/s43247-025-02499-4
Bourguet, et al.
Semi-empirical estimates of stratospheric circulation and the lifetimes of chlorofluorocarbons and carbon tetrachloride
Communications Earth & Environment, 6(), 531, ; doi: 10.1038/s43247-025-02500-0
Knowland, et al.
Stratospheric Water Vapor Beyond NASA's Aura MLS: Assimilating SAGE III/ISS Profiles for a Continued Climate Record
Geophysical Research Letters, 52(), e2024GL112610, ; doi: 10.1029/2024GL112610
Lee, et al.
The Influence of Australian Bushfire on the Upper Tropospheric CO and Hydrocarbon Distribution in the South Pacific
Remote Sensing, 17(), 2092, ; doi: 10.3390/rs17122092
Dubé, et al.
Chlorinated very short-lived substances offset the long-term reduction of inorganic stratospheric chlorine
Communications Earth & Environment, 6(), 487, ; doi: 10.1038/s43247-025-02478-9
Sheese, et al.
Quantifying the sources of increasing stratospheric water vapour concentrations
Atmospheric Chemistry and Physics, 25(), 5199, ; doi: 10.5194/acp-25-5199-2025
Saunders, et al.
Age of air from ACE-FTS measurements of sulfur hexafluoride
Atmospheric Chemistry and Physics, 25(), 4185, ; doi: 10.5194/acp-25-4185-2025
Gurganus, et al.
Highlighting the Impact of Anthropogenic OCS Emissions on the Stratospheric Sulfur Budget With In Situ Observations
Journal of Geophysical Research: Atmospheres, 130(), e2024JD042588, ; doi: 10.1029/2024JD042588
Zhang, et al.
Record-High Ozone in the Austral Mid-Latitude Tropopause Region Driven by Dynamical and Chemical Effects of the 2019 Sudden Stratospheric Warming
Geophysical Research Letters, 52(), e2025GL115588, ; doi: 10.1029/2025GL115588
Bernath, et al.
Global Satellite-Based Atmospheric Profiles from Atmospheric Chemistry Experiment SciSat Level 2 Processed Data, v5.2, 2004-2024
Federated Research Data Repository, None(), None, ; doi: 10.20383/103.01245
Dodangodage, et al.
HFC-23 from updated Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) retrievals
Journal of Quantitative Spectroscopy and Radiative Transfer, 338(), 109416, ; doi: 10.1016/j.jqsrt.2025.109416