Contact Stewart G. Cober:

Phone & Address


Member of the Air Quality Research Management Committee

Member of the Northern Contaminants Program Management Committee

Member of the Canadian Meteorological and Oceanographic Society


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


Stewart G. Cober

Chief - Air Quality Processes Research

CURRENT S&T / RESEARCH - 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


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



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.

Expertise Categories associated with this S&T Expert:

Environmental Policy
          Weather Modification Information Act
          Icing / deicing
     Radar & Monitoring
Weather & Meteorology
     Cloud physics
          Cloud processes
          Satellite technology
     Severe Weather
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