Vitali Fioletov

Research Scientist - Ozone and UV studies

Current research and/or projects

Studying changes in the ozone layer and surface ultraviolet radiation

  • Estimation of long-term ozone changes and trends from ground-based and satellite observations; Studying the relationship between stratosferic ozone and other factors
  • Ozone and UV radiation measurement algorithms; Ground-based and satellite data validation
  • Factors affecting surface UV radiation, UV climatology, variability and trends; UV-related data products (UV Index, vitamin D production)
  • Real-time ozone and UV monitoring over Canada and the world

Professional activities / interests

Lead Author of the WMO/UNEP Ozone Assessment-2006; author, contributing author, contributor of multiple WMO Ozone Assessments, IPCC and Arctic Climate Impact Assessments

Research Scientist responsible for the WMO World Ozone and Ultraviolet radiation Data Centre (WOUDC)

Author and co-author of 40+ scientific papers. Research grant, scientific assessment, and journal paper reviews

Education and awards

EPA Stratospheric Ozone Protection Award (as a member of the Ozone Science Tiger Team)

Natural Sciences and Engineering Research Council (NSERC) Postdoctoral Fellowship

Ph. D. Atmospheric Physics, Central Aerological Observatory, Moscow, Russia; M. Sc. Mathematics (Hons.), Moscow State University

Key publications

Fioletov, V.E. 2008. Ozone climatology, trends, and substances that control ozone. Atmos.-Ocean. (In press).

Fioletov V.E. and T.G. Shepherd. 2003. Seasonal persistence of midlatitude total ozone anomalies. Geophys. Res. Lett. 30: 1417-1421.

Fioletov V.E., M.G. Kimlin, N. Krotkov, L.J.B. McArthur, J.B. Kerr, D.I. Wardle, J.R. Herman, R. Meltzer, T.W. Mathews and J. Kaurola. 2004. UV index climatology over the US and Canada from ground-based and satellite estimates. J. Geophys. Res. 109: D22308, doi:10.1029/2004JD004820.

Fioletov, V.E., J.B. Kerr, D.I. Wardle, N.A. Krotkov and J.R. Herman. 2002. Comparison of Brewer UV irradiance measurements with TOMS satellite retrievals. Optical Engineering. 41(12): 3051-3061.

Fioletov, V.E., G.E. Bodeker, A.J. Miller, R.D. McPeters and R. Stolarski. 2002. Global and zonal total ozone variations estimated from ground based and satellite measurements: 1964-2000. J. Geophys. Res. 107(D22):4647, doi:10.1029/2001JD001350.

Fioletov, V.E., J.B. Kerr, D.I. Wardle, J. Davies, E.W. Hare, C.T. McElroy and D.W. Tarasick. 1997. Long-term ozone decline over the Canadian Arctic to early 1997 from ground-based and balloon observations. Geophys. Res. Lett. 24: 2705-2708.

Research facility

4905 Dufferin Street
Toronto, ON M3H 5T4


Member of the IAMAS International Ozone Comission

Member of the WMO Scientific Advisory Group on Ultraviolet Radiation

Member of the International Science Advisory Panel for Integrated Global Atmospheric Chemistry Observations (IGACO)-Ozone