Laboratory for Air Pollution/Environmental Technology, Empa – Swiss Federal Laboratory for Materials Science and Technology, Überlandstraße 129, Dübendorf 8600, Switzerland
Laboratory for Air Pollution/Environmental Technology, Empa – Swiss Federal Laboratory for Materials Science and Technology, Überlandstraße 129, Dübendorf 8600, Switzerland
Jonas Ravelid
Laboratory for Air Pollution/Environmental Technology, Empa – Swiss Federal Laboratory for Materials Science and Technology, Überlandstraße 129, Dübendorf 8600, Switzerland
Philipp Scheidegger
Laboratory for Air Pollution/Environmental Technology, Empa – Swiss Federal Laboratory for Materials Science and Technology, Überlandstraße 129, Dübendorf 8600, Switzerland
André Kupferschmid
Transport at Nanoscale Interfaces, Empa – Swiss Federal Laboratory for Materials Science and Technology, Überlandstraße 129, Dübendorf 8600, Switzerland
Herbert Looser
Laboratory for Air Pollution/Environmental Technology, Empa – Swiss Federal Laboratory for Materials Science and Technology, Überlandstraße 129, Dübendorf 8600, Switzerland
Laboratory for Air Pollution/Environmental Technology, Empa – Swiss Federal Laboratory for Materials Science and Technology, Überlandstraße 129, Dübendorf 8600, Switzerland
Laboratory for Air Pollution/Environmental Technology, Empa – Swiss Federal Laboratory for Materials Science and Technology, Überlandstraße 129, Dübendorf 8600, Switzerland
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Total article views: 6,514 (including HTML, PDF, and XML)
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Total article views: 5,793 (including HTML, PDF, and XML)
Thereof 5,584 with geography defined
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Total article views: 721 (including HTML, PDF, and XML)
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We describe a lightweight (2 kg) mid-IR laser spectrometer for airborne, in situ atmospheric methane (CH4) measurements. The instrument, based on an open-path circular multipass cell, provides fast response (1 Hz) and sub-parts-per-billion precision. It can easily be mounted on a drone, giving access to highly resolved 4D (spatial and temporal) data. The performance was assessed during field deployments involving artificial CH4 releases and vertical concentration gradients in the PBL.
We describe a lightweight (2 kg) mid-IR laser spectrometer for airborne, in situ atmospheric...
