The Canadian Ozone Watch and UV-B advisory programs

Abstract

The Ozone Watch, initiated in March, 1992, is a weekly bulletin describing the state of the ozone layer over Canada. The UV-B advisory program, which started in May, 1992, produces daily forecasts of clear-sky UV-B radiation. The forecast procedures use daily ozone measurements from the eight-station monitoring network, the output from the Canadian operational forecast model and a UV-B algorithm based on three years of spectral UV-B measurements with the Brewer spectrophotometer.

Authors

• Kerr, J. B. Atmospheric Environment Service
• Mcelroy, C. T. Atmospheric Environment Service
• Tarasick, D. W. Atmospheric Environment Service
• Wardle, D. I. Atmospheric Environment Service