David A. Plummer

Research Scientist - Atmospheric Chemistry - Climate Change Research

I develop a numerical representation of chemical reactions that happens in the atmosphere. The 'chemistry' is included in the ECCC climate model and allows us to study interactions between climate change and issues like the stratospheric ozone layer and air pollution.

Current research and/or projects

My research contributes to Government of Canada capabilities to understand and project the future state of the climate system, with a focus on the stratospheric ozone layer and short-lived climate pollutants.

Research and/or project statements

Development of atmospheric chemistry as a component of the Canadian Earth System Model to improve Environment Canada's capacity to understand and project the future physical and chemical state of the atmosphere.  

Continued development of stratospheric chemical processes in the Canadian Climate model to investigate the future evolution of the ozone layer as atmospheric concentrations of ozone depleting substances decrease due to actions taken under the Montreal Protocal and as climate changes.

Continued development of tropospheric chemical processes in the Canadian Climate model to investigate how climate change and future emissions of ozone precursor species will affect ozone and related chemical processes such as atmospheric oxidation and nitrogen deposition.

Contribution of model simulations to international intercomparison projects to support research and assessment activities including the IPCC and WMO/UNEP Scientific Assessment of Ozone Depletion.

Professional activities / interests

Co-chair of the Chemistry Climate Model Initiative

Panel reviewer for the WMO/UNEP Scientific Assessment of Ozone Depletion: 2014 and 2018


Education and awards

Ph.D. Earth and Space Science, York University, Toronto, 1999

Key publications

Abalos, M., C. Orbe, D. E. Kinnison, D. Plummer, L. D. Oman, P. Jöckel, O. Morgenstern, R. R. Garcia, G. Zeng, K. A. Stone and M. Dameris, Future trends in stratosphere-to-troposphere transport in CCMI models, Atmos. Chem. Phys., 20, 6883 - 6901, https://doi.org/10.5194/acp-20-6883-2020, 2020.

Checa-Garcia, R., M. I. Hegglin, D. Kinnison, D. A. Plummer and K. P. Shine, Historical tropospheric and stratospheric ozone radiative forcing using the CMIP6 database, Geophys. Res. Lett., 45, 3264 - 3273, https://doi.org/10.1002/2017GL076770, 2018.

Shepherd, T. G., D. A. Plummer, J. F. Scinocca, M. I. Hegglin, V. E. Fioletov, M. C. Reader, E. Remsberg, T. Von Clarmann and H. J. Wang. 2014. Reconciliation of halogen-induced ozone loss with the total-column ozone record, Nature Geoscience, 7, 443-449, doi:10.1038/ngeo2155. (http://www.nature.com/ngeo/journal/v7/n6/full/ngeo2155.html)

Reader, M. C., D. A. Plummer, J. F. Scinocca and T. G. Shepherd. 2013. Contributions to twentieth century total column ozone change from halocarbons, tropospheric ozone precursors, and climate change, Geophysical Research Letters, 40, 6276-6281, doi:10.1002/2013GL057776. (http://onlinelibrary.wiley.com/doi/10.1002/2013GL057776/abstract)

Kelly, J., P. A. Makar and D. A. Plummer. 2012. Projections of mid-century summer air-quality for North America: effects of changes in climate and precursor emissions, Atmospheric Chemistry and Physics, 12, 5367-5390, doi:10.5194/acp-12-5367-2012. (http://www.atmos-chem-phys.net/12/5367/2012/)

Plummer, D. A., J. F. Scinocca, T. G. Shepherd, M. C. Reader and A. I. Jonsson. 2010. Quantifying the contributions to stratospheric ozone changes from ozone depleting substances and greenhouse gases, Atmospheric Chemistry and Physics, 10, 8803-8820, doi:10.5194/acp-10-8803-2010. (http://www.atmos-chem-phys.net/10/8803/2010/)

Research facility

2121, route Transcanadienne
Dorval, QC H9P 1J3