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Locating and quantifying gas emission sources using remotely obtained concentration data

Methods for detecting, locating and quantifying sources of gas emissions to the atmosphere using remotely obtained gas concentration data, applicable to gases of environmental concern, are of considerable interest. This talk considers characterisation of ground emissions of methane from remote airborne measurements of methane, and summarises related ground- and satellite-based approaches. Atmospheric point concentration measurements are modelled as the sum of a spatially and temporally smooth atmospheric background concentration, and localised exceptional sources of interest. Appropriate statistical forms for model components are specified, and Bayesian inference made using reversible-jump MCMC.