cpc-air: Condensation particle counter aboard aircraft

The condensation particle counter (CPC) measures sub-micron aerosol particle number concentration by condensing fluid onto particles and causing them to grow to sizes that are easily detectable by optical scattering. The condensing liquid is typically an alcohol (e.g., butanol) or water.

Depending on the CPC type, typical CPC instruments can count particles with sizes that range from 3 to 3000 nanometers (ultrafine CPC) or from 10 to 3000 nanometers (fine CPC).



  • Fixed
  • AMF1
  • AMF2
  • AMF3


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Kuang C and F Mei. 2019. Condensation Particle Counter (CPC) Instrument Handbook - Airborne Version. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-227.

Yeom J, S Yum, F Mei, B Schmid, J Comstock, L Machado, and M Cecchini. 2019. "Impact of secondary droplet activation on the contrasting cloud microphysical relationships during the wet and dry seasons in the Amazon." Atmospheric Research, , 10.1016/j.atmosres.2019.104648. ONLINE.


Shilling J, M Pekour, E Fortner, P Artaxo, S de Sá, J Hubbe, K Longo, L Machado, S Martin, S Springston, J Tomlinson, and J Wang. 2018. "Aircraft observations of the chemical composition and aging of aerosol in the Manaus urban plume during GoAmazon 2014/5." Atmospheric Chemistry and Physics, 18(14), 10.5194/acp-18-10773-2018.
Research Highlight


Maahn M, G de Boer, J Creamean, G Feingold, G McFarquhar, W Wu, and F Mei. 2017. "The observed influence of local anthropogenic pollution on northern Alaskan cloud properties." Atmospheric Chemistry and Physics, 17(23), doi:10.5194/acp-17-14709-2017.
Research Highlight

Cecchini M, L Machado, M Andreae, S Martin, R Albrecht, P Artaxo, H Barbosa, S Borrmann, D Fütterer, T Jurkat, C Mahnke, A Minikin, S Molleker, M Pöhlker, U Pöschl, D Rosenfeld, C Voigt, B Wenzierl, and M Wendisch. 2017. "Sensitivities of Amazonian clouds to aerosols and updraft speed." Atmospheric Chemistry and Physics, 17(16), 10.5194/acp-2017-89.

Fridlind A, X Li, D Wu, M van Lier-Walqui, A Ackerman, W Tao, G McFarquhar, W Wu, X Dong, J Wang, A Ryzhkov, P Zhang, M Poellot, A Neumann, and J Tomlinson. 2017. "Derivation of aerosol profiles for MC3E convection studies and use in simulations of the 20 May squall line case." Atmospheric Chemistry and Physics, 17(9), 10.5194/acp-17-5947-2017.
Research Highlight


Martin ST, P Artaxo, L Machado, AO Manzi, RA Souza, C Schumacher, J Wang, T Biscaro, J Brito, A Calheiros, K Jardine, A Medeiros, B Portela, SS de Sa, K Adachi, AC Aiken, R Albrecht, L Alexander, MO Andreae, HM Barbosa, P Buseck, D Chand, JM Comstock, DA Day, M Dubey, J Fan, J Fast, G Fisch, E Fortner, S Giangrande, M Gilles, AH Goldstein, A Guenther, J Hubbe, M Jensen, JL Jimenez, FN Keutsch, S Kim, C Kuang, A Laskin, K McKinney, F Mei, M Miller, R Nascimento, T Pauliquevis, M Pekour, J Peres, T Petaja, C Pohiker, U Poschi, L Rizzo, B Schmid, JE Shilling, MA Silva Dias, JN Smith, JM Tomlinson, J Tota, and M Wendisch. 2016. "The Green Ocean Amazon Experiment (GoAmazon2014/5) Observes Pollution Affecting Gases, Aerosols, Clouds, and Rainfall over the Rain Forest." Bulletin of the American Meteorological Society, 98(5), 10.1175/bams-d-15-00221.1.

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