Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 3
Articles | Volume 19, issue 3
https://doi.org/10.5194/amt-19-1093-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/amt-19-1093-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 3
Research article
 | 
16 Feb 2026
Research article |  | 16 Feb 2026

Characterization and operation of a multi-channel Condensation Particle Counter (mc-CPC) for aircraft-based measurements

Sarah Richter, Timo Keber, Martin Heinritzi, Lisa Beck, Laurin Merkel, Sarah Kirchhoff, Jann Schrod, Patrick Weber, and Joachim Curtius

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Short summary
We constructed and characterized a Fluorinert multi-channel Condensation Particle Counter for aircraft applications that comprises three channels and a pressure regulation system to measure nucleation mode particles in the upper troposphere. The cutoffs were determined at several ambient and internal pressures and sample flows. During the first aircraft campaign TPEx we were able to identify possible new particle formation events.
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The tropopause region in a changing atmosphere (TPChange)...