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:
Molchanov, et al.
Monitoring the Radiative Properties of Ozone under Thermal Nonequilibrium Conditions in Aviation Systems
Technical Physics Letters, 52(), 413, ; doi: 10.1134/S1063785026600638
Dhomse, et al.
TCOM-CFC11 and TCOM-CFC12: a gap-free, observationally constrained global dataset of stratospheric CFC-11 and CFC-12 profiles (v2.0)
Earth System Science Data, 18(), 6171, ; doi: 10.5194/essd-18-6171-2026
Bruno, et al.
Hydrological drivers of hydrogen cyanide wildfire emissions from Indonesian peat fires during the 2015, 2019, and 2023 El Niño events
Atmospheric Chemistry and Physics, 26(), 12925, ; doi: 10.5194/acp-26-12925-2026
Auffarth, et al.
Consistency between zonal mean stratospheric and total column ozone trends (2000–2024)
Atmospheric Chemistry and Physics, 26(), 13359, ; doi: 10.5194/acp-26-13359-2026
Camarca, et al.
Callisto from JWST: CO2-rich Terrain on the Leading Hemisphere and Global Patterns of H2O Ice
Planetary Science Journal, 7(), 210, ; doi: 10.3847/PSJ/ae9608
Pedatella, et al.
High Resolution Simulations of the Chemistry and Dynamics of the Mesosphere and Lower Thermosphere During the 2018-2019 Sudden Stratosphere Warming
Journal of Geophysical Research: Atmospheres, 131(), e2026JD046764, ; doi: 10.1029/2026JD046764
Bézard, et al.
An unidentified absorption feature at 5.11 μm on the surfaces of Titan and Pluto from JWST spectroscopy
Astronomy and Astrophysics, 711(), A294, ; doi: 10.1051/0004-6361/202660810
Zhu, et al.
Decadal doubling of Siberian methane emissions due to warming-induced fires and methanogenesis
Science, 393(), 615, ; doi: 10.1126/science.aea5828
Bernath, et al.
Global Characterization of Stratospheric Sulfate Aerosols by the Atmospheric Chemistry Experiment (ACE)
Journal of Geophysical Research: Atmospheres, 131(), e2025JD046214, ; doi: 10.1029/2025JD046214
Wang, et al.
Influence of model vertical resolution on simulation of methane in the lowermost stratosphere
Atmospheric and Oceanic Science Letters, None(), 100873, ; doi: 10.1016/j.aosl.2026.100873
Wang, et al.
First ground-based FTIR observations of stratospheric ClONO2 at a mid-latitude China site and comparison with satellite data
Atmospheric Environment, 382(), 122137, ; doi: 10.1016/j.atmosenv.2026.122137
Bhusal, et al.
An Updated Infrared Solar Spectrum from ACE-FTS and a CH Rovibrational Line List
The Astrophysical Journal, 1005(), 223, ; doi: 10.3847/1538-4357/ae77f2
Bhusal, et al.
Variation in composition and size distribution of stratospheric sulfate aerosol derived from Atmospheric Chemistry Experiment (ACE)
Journal of Quantitative Spectroscopy and Radiative Transfer, 362(), 110012, ; doi: 10.1016/j.jqsrt.2026.110012