Articles | Volume 8, issue 1
https://doi.org/10.5194/amt-8-33-2015
https://doi.org/10.5194/amt-8-33-2015
Research article
 | 
06 Jan 2015
Research article |  | 06 Jan 2015

Dual-channel photoacoustic hygrometer for airborne measurements: background, calibration, laboratory and in-flight intercomparison tests

D. Tátrai, Z. Bozóki, H. Smit, C. Rolf, N. Spelten, M. Krämer, A. Filges, C. Gerbig, G. Gulyás, and G. Szabó

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Cited articles

Bell, A. G.: On the production and reproduction of sound by light: the photophone, Am. J. Sci., 20, 305–324, 1880.
Bell, A. G.: Upon the production of sound by radiant energy, Philosophical Magazine and Journal of Science, 11, 510–528, 1881.
Bozóki, Z., Pogány, A., and Szabó, G.: Photoacoustic instruments for practical applications: present, potentials, and future challenges, Appl. Spectrosc. Rev., 46, 1–37, https://doi.org/10.1080/05704928.2010.520178, 2011.
Bozóki, Z., Tátrai, D., and Szabó, G.: Method and arrangement for wavelength monitoring of wavelength tunable light source and stabilizing based on absorption spectroscopic detecting; Hungarian patent, HU1100719 (A2), 2013.
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Airborne hygrometry is very important in climate research, and the interest in knowing not only water vapor concentration but (cirrus) cloud content as well is increasing. The authors provide a photoacoustic spectroscopy-based dual-channel hygrometer system that can be a good solution for such measurements. The instrument was proven to operate properly from ground level up to the lower stratosphere, giving the possibility even for cirrus cloud studies.
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