Stewart G. Cober

Chief - Air Quality Processes Research
Environment and Climate Change Canada

Current research and/or projects

Responsible for managing the Air Quality Processes Research Section of Environment Canada. The researchers in this section advance knowledge and understanding of the chemical and physical processes that govern the emission, transport, transportation and deposition of air pollutants.

The research activities support the following initiatives:

  • Clean Air Regulatory Agenda
  • Chemicals Management Plan
  • Canada-Alberta Joint Oil Sands Monitoring Program
  • Northern Contaminants Program

Professional activities / interests

Environment Canada spokesperson for clouds, formation of rain and snow, aircraft icing and weather modification (including cloud seeding, hail suppression and precipitation enhancement)

Education and awards

Ph.D. Atmospheric Physics, Department of Physics, University of Toronto, 1991. Thesis title: An experimental investigation of the heat and mass transfer of graupel

Queen Elizabeth II diamond jubilee medal for meritorious service

Canada 125 medal for meritorious service

Canadian Decoration and bar for military service

Key publications

Cober, S.G. and G.A. Isaac, 2012. Characterization of aircraft icing environments with supercooled large drops for application to commercial aircraft certification. J. Appl. Meteor. Clim., 51, 265-284.

Korolev A. V., E. F. Emery, J.W. Strapp, S. G. Cober, G. A. Isaac, M. Wasey, D. Marcotte, 2011: Small ice particles in tropospheric clouds: fact or artifact? Airborne Icing Instrumentation Evaluation Experiment. Bull. Amer. Meteor. Soc., 92, 967-973.

Joe, P., C. Doyle, A. Wallace, S.G. Cober, B. Scott, G.A. Isaac, T. Smith, J. Mailhot, B Snyder, S. Belair, Q. Jansen and B. Denis. 2010: Weather services, science advances, and the Vancouver 2010 Olympic and Paralympic winter games. Bull. Amer. Meteor. Soc. 91: 31-36.

Cober, S.G., B. Bernstein, R. Jeck, E. Hill, G.A. Isaac, J. Riley and A. Shah. 2009. Data and analysis for the development of an engineering standard for supercooled large drop conditions. Tech. Rep. DOT/FAA/AR-09/10, Federal Aviation Administration, 89 pp.

Cober, S.G., G.A. Isaac, A.V. Korolev and J.W. Strapp. 2001. Assessing cloud-phase conditions. J. Appl. Meteor. 40: 1967-1983.