Contact Stewart G. Cober:

Phone & Address


Member of the Canadian Meteorological and Oceanographic Society

Member of the Aircraft Icing Research Alliance

Member of the International Ice Protection and Harmonization Working Group


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

Canada 125 medal for meritorious service


Stewart G. Cober

Chief - Air Quality Processes Research

CURRENT S&T / RESEARCH - Contributing to the application of cloud and precipitation physics to severe weather, nowcasting, weather forecasting, aviation meteorology, climate change and remote sensing

  • Characterization of aircraft icing environments in order to develop standards for application to international commercial aircraft in-flight icing certification regulations
  • Supporting development of nowcasting systems for short-term forecasting of high-impact weather phenomena, and the application of these systems to large airports and the Vancouver 2010 Olympics
  • Supporting development of fog detection and forecasting methodologies and application to the operational public, marine and aviation forecasting programs
  • Supporting development of validation methodologies for observing systems on specialized satellites that can measure cloud properties, so that the satellite-based observations can be applied to meteorological and climate research objectives
  • Supporting application of reseach-aircraft based in situ measurements of cloud properties to atmospheric science research objectives


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

Lead for the development of a technical transfer process in Environment Canada, for the effective technical transfer of recent advances in processes and observationally based meteorological research into the operational forecasting program

Lead of the Environment Canada National Lab for Aviation Meteorology


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