Articles | Volume 8, issue 12
Atmos. Meas. Tech., 8, 5213–5222, 2015
https://doi.org/10.5194/amt-8-5213-2015
Atmos. Meas. Tech., 8, 5213–5222, 2015
https://doi.org/10.5194/amt-8-5213-2015
Research article
10 Dec 2015
Research article | 10 Dec 2015

Dual-wavelength light-scattering technique for selective detection of volcanic ash particles in the presence of water droplets

Z. Jurányi et al.

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Short summary
Volcanic eruption can be a serious security risk for airplanes. We develop a new aerosol sensor for the reliable detection of volcanic ash on airplanes. We introduce here the laboratory prototype of this instrument, which is able to distinguish between water droplets and volcanic ash particles by measuring the scattered light at two distinct wavelengths simultaneously. The different optical behaviour of volcanic ash and water at these wavelengths makes this differentiation possible.