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THE CLIMATE SEVERITY INDEX FOR CANADA

THE CLIMATE SEVERITY INDEX FOR CANADA. Recalculated for recently observed climate change and a scenario of future climate. The CSI of Phillips and Crowe. An arbitrary index, with a scale of 0 to 100, designed to measure the impact of climate on Canadians, with regard to: human comfort

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THE CLIMATE SEVERITY INDEX FOR CANADA

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  1. THE CLIMATE SEVERITY INDEX FOR CANADA Recalculated for recently observed climate change and a scenario of future climate

  2. The CSI of Phillips and Crowe • An arbitrary index, with a scale of 0 to 100, designed to measure the impact of climate on Canadians, with regard to: • human comfort • psychological well-being • climatic hazards to human life, health and well-being • For 146 Canadian locations

  3. CSI Ingredients • winter discomfort • January wind chill, winter length and severity • summer discomfort • humidex, summer length, warmth and dampness • psychological factors • darkness, sunshine, wet days, fog • hazards • wind, thunderstorms, blowing snow, snowfall • outdoor mobility • snowfall, visibility, freezing precipitation

  4. Original CSI Map of Canada

  5. The CSI and Observed Climate Change (1) • The original CSI was based on the climate for 1941-1970 (for 146 stations) • We now have climate data for 1953-1995 (for a few stations) • The recent climate has warmed and gotten wetter. What has that done to the CSI?

  6. Recalculation of the CSI • CSI recalculated for 15 stations using hourly data for • 1953-1970 (to compare with original) • 1953-1980 (to add more recent data) • 1961-1995 (most recent climate window) • Using only daily data (because scenarios of future climate do not provide hourly data)

  7. The CSI Recalculated

  8. The CSI and Future Climate • CSI calculated on the model grid using model outputs from one run of the Canadian CGCM for one scenario of increasing GHGs and aerosols for • 1961-1995 (present climate) • 2010-2039 (the 2020s) • 2040-2069 (the 2050s) • 2070-2099 (the 2080s)

  9. CSI 1961-1995

  10. CSI 2010-2039

  11. CSI 2040-2059

  12. CSI 2070-2099

  13. A Scenario of Future CSI

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