Analysis

New camera can measure levels of methane in the air

2nd December 2015
Enaie Azambuja
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A camera, developed by researchers from Stockholm University and Linköping University, can photograph and film methane in the air around us. It can be an important part of the efforts to measure and monitor greenhouse gases. A study was recently published in Nature Climate Change.

There is a lot of uncertainty regarding the sources and sinks of methane in the landscape. A newly developed camera from Stockholm University and Linköping University can help to address these issue. The ability of the camera to both photograph and film methane has been demonstrated in a study that was recently published in Nature Climate Change, with the contribution of professors Göran Olofsson and Patrick Crill.

The advanced hyperspectral infrared camera weighs 35 kilos and measures 50 x 45 x 25 centimeters. It is optimized to measure the same radiation that methane absorbs and which makes methane such a powerful greenhouse gas. The camera can be used to measure emissions from many environments including sewage sludge deposits, combustion processes, animal husbandry and lakes. For each pixel in the image the camera records a high-resolution spectrum, which makes it possible to quantify the methane separately from the other gases.

The camera was developed by a team that combined knowledge from many different fields of expertise, including astronomy, biogeochemistry, engineering and environmental sciences. So far the camera has been used from the ground and now it has been developed to be airborne for more large-scale methane mapping. 

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