Methane mapping with an airplane

What is it about?

We describe a method to measure methane in the air using a sensor mounted in an airplane, and we outline a procedure for systematically surveying a large area. The methane in the air originates from sources at ground level, and through sophisticated mathematical modelling we can determine the location of the source(s) and the rate of methane emission from the source(s).

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Why is it important?

Methane is an important greenhouse gas, so it is useful to know where methane is coming from (natural, industrial, etc.) and how much methane is being emitted. We have shown how a large area can be rapidly mapped using an airplane, and how accurate source locations and emission rates can be determined. These results can be used for environmental monitoring as well as for hydrocarbon exploration.