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

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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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Short summary
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.