2009

MCELROY, Charles - Experimental Studies, Environment Canada

Dr. McElroy is one of Canada's foremost atmospheric scientists. He is a co-inventor of the Brewer ozone spectrophotometer, now used for ozone measurements world-wide, and the UV index, which is used to inform the public of the safety of remaining outside in sunlight. He has developed techniques for measuring ozone and other gases from the ground, from aircraft and from space. He has developed instruments used by astronauts on the space shuttle and the MAESTRO instrument on Canada's SCISAT satellite. He has sat on numerous national and international committees, and received numerous awards.

STEWART, Ronald - Department of Environment and Geography, University of Manitoba

Professor Stewart is a global leading expert on precipitation processes within winter storms. As the scientific leader for the Canadian Atlantic Storms Program, the Beaufort and Arctic Storms Experiment and the Mackenzie GEWEX Study and now co-lead for the Storm Studies in the Arctic experiment and the Drought Research Initiative, he has led the way in Canadian research with extensive publications, special issues of journals and books, and supervision of graduate students. He has been President of the Canadian Meteorological and Oceanographic Society. He plays leading roles internationally, including the Global Energy and Water Cycle Experiment and now its new initiative on climate extremes.