Interpreting recent changes in atmospheric methane using satellite observations of gravity

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• Professor Paul Palmer, School of GeoSciences, University of Edinburgh
• Wednesday 18 November 2009, 14:15-15:15
• Unilever Lecture Theatre, Department of Chemistry.

If you have a question about this talk, please contact Dr Francis Pope.

Note unusual day

The atmospheric growth rate of methane, determined by a balance between natural and anthropogenic sources and sinks, levelled off late in the 20th century but has recently started to increase. Our understanding of these changes in growth rate is poor, hampered by incomplete knowledge of sources and sinks and by sparse in situ data coverage. I will outline a new approach to isolate methane contributions from wetlands, the largest single methane source that represents 20-40% of the total emissions budget, using an innovative combination of space-based data. I will discuss the implications of our results for understanding recent changes in atmospheric methane.

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

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