Understanding 20th century surface temperature variability

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• David W J Thompson, Colorado State University
• Thursday 22 May 2008, 14:15-15:15
• Meeting Room 2, Centre for Mathematical Sciences.

If you have a question about this talk, please contact Dr Glenn Carver.

The prevailing view of 20th century temperature variability is that the Earth warmed from 1910 to 1940, cooled slightly from 1940 to 1970, and warmed markedly from 1970 onward. In this talk I will exploit a physically-based filtering methodology which provides an alternative interpretation of 20th century global-mean temperature variability. The results clarify the consistency between the century- long monotonic rise in greenhouse gases and global-mean temperatures, provide new insights into the climatic impact of volcanic eruptions, and highlight a glaring but previously overlooked error in the time series of global-mean temperatures.

This talk is part of the Centre for Atmospheric Science seminars, Chemistry Dept. series.

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