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Short summary
We present a spectral imager capable of measuring the 2-D distribution of NO2 above well-delimited emission sources (power plant, city, etc.) with an unprecedent spatiotemporal resolution. Tests at a coal-fired power plant demonstrated its capability to observe dynamic processes such as the conversion from NO to NO2 in the early plume. Potential applications are pollution sources monitoring, reactive plume chemistry models validation, ships and volcanic emissions tracking, etc.
Articles | Volume 9, issue 12
Atmos. Meas. Tech., 9, 6025–6034, 2016
https://doi.org/10.5194/amt-9-6025-2016
Atmos. Meas. Tech., 9, 6025–6034, 2016
https://doi.org/10.5194/amt-9-6025-2016

Research article 15 Dec 2016

Research article | 15 Dec 2016

The AOTF-based NO2 camera

Emmanuel Dekemper et al.

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Cited articles

Bluth, G. J. S., Shannon, J. M., Watson, I. M., Prata, A. J., and Realmuto, V. J.: Development of an ultra-violet digital camera for volcanic SO2 imaging, J. Volcanol. Geoth. Res., 161, 47–56, https://doi.org/10.1016/j.jvolgeores.2006.11.004, 2007.
Chang, I. C.: Noncollinear acousto-optic filter with large angular aperture, Appl. Phys. Lett., 25, 370–372, https://doi.org/10.1063/1.1655512, 1974.
Chowdhury, B., Karamchandani, P., Sykes, R., Henn, D., and Knipping, E.: Reactive puff model SCICHEM: Model enhancements and performance studies, Atmos. Environ., 117, 242–258, https://doi.org/10.1016/j.atmosenv.2015.07.012, 2015.
Dekemper, E., Loodts, N., Van Opstal, B., Maes, J., Vanhellemont, F., Mateshvili, N., Franssens, G., Pieroux, D., Bingen, C., Robert, C., De Vos, L., Aballea, L., and Fussen, D.: Tunable acousto-optic spectral imager for atmospheric composition measurements in the visible spectral domain, Appl. Optics, 51, 6259–6267, https://doi.org/10.1364/AO.51.006259, 2012.
Flagan, R. C. and Seinfeld, J. H.: Fundamentals of Air Pollution Engineering, Prentice Hall, Englewood Cliffs, USA, 1988.
Publications Copernicus
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Short summary
We present a spectral imager capable of measuring the 2-D distribution of NO2 above well-delimited emission sources (power plant, city, etc.) with an unprecedent spatiotemporal resolution. Tests at a coal-fired power plant demonstrated its capability to observe dynamic processes such as the conversion from NO to NO2 in the early plume. Potential applications are pollution sources monitoring, reactive plume chemistry models validation, ships and volcanic emissions tracking, etc.
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