Articles | Volume 9, issue 10
Atmos. Meas. Tech., 9, 5135–5162, 2016
https://doi.org/10.5194/amt-9-5135-2016

Special issue: ML-CIRRUS – the airborne experiment on natural cirrus...

Atmos. Meas. Tech., 9, 5135–5162, 2016
https://doi.org/10.5194/amt-9-5135-2016

Research article 20 Oct 2016

Research article | 20 Oct 2016

Thermodynamic correction of particle concentrations measured by underwing probes on fast-flying aircraft

Ralf Weigel et al.

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Short summary
The subject of our study concerns measurements with optical array probes (OAPs) on fast-flying aircraft such as the G550 (HALO or HIAPER). At up to Mach 0.7 the effect of air compression upstream of underwing-mounted instruments and particles' inertia need consideration for determining ambient particle concentrations. Compared to conventional practices the introduced correction procedure eliminates ambiguities and exhibits consistency over flight speeds between 50 and 250 m s.