Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 15, issue 5
Articles | Volume 15, issue 5
https://doi.org/10.5194/amt-15-1395-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-15-1395-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 5
Research article
 | 
16 Mar 2022
Research article |  | 16 Mar 2022

The NO2 camera based on gas correlation spectroscopy

Leon Kuhn, Jonas Kuhn, Thomas Wagner, and Ulrich Platt

Video supplement

A GCS NO₂ Camera image series of the emissions of the Großkraftwerk Mannheim (coloured) L. Kuhn https://doi.org/10.5446/55859

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Short summary
We present a novel instrument for imaging measurements of NO2 with high spatiotemporal resolution based on gas correlation spectroscopy, called the GCS NO2 camera. The instrument works by placing two gas cells (cuvettes) in front of two photosensor arrays, one filled with air and one filled with a high concentration of NO2, acting as a non-dispersive spectral filter. NO2 images are then generated on the basis of the signal ratio of the two channels in the spectral region of 430–445 nm.
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