Articles | Volume 11, issue 6
Atmos. Meas. Tech., 11, 3491–3509, 2018
https://doi.org/10.5194/amt-11-3491-2018
Atmos. Meas. Tech., 11, 3491–3509, 2018
https://doi.org/10.5194/amt-11-3491-2018

Research article 19 Jun 2018

Research article | 19 Jun 2018

Fast time response measurements of particle size distributions in the 3–60 nm size range with the nucleation mode aerosol size spectrometer

Christina Williamson et al.

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Cited articles

ATom Science Team: Moffett Field, CA, NASA Ames Earth Science Project Office (ESPO), https://doi.org/10.5067/Aircraft/ATom/TraceGas_Aerosol_ Global_Distribution, 2017. 
Baron, P. A., and Willeke, K.: Aerosol measurement : principles, techniques, and applications, 2nd edn., Wiley, New York, xxiii, 1131 pp., 2001. 
Borrmann, S., Kunkel, D., Weigel, R., Minikin, A., Deshler, T., Wilson, J. C., Curtius, J., Volk, C. M., Homan, C. D., Ulanovsky, A., Ravegnani, F., Viciani, S., Shur, G. N., Belyaev, G. V., Law, K. S., and Cairo, F.: Aerosols in the tropical and subtropical UT/LS: in-situ measurements of submicron particle abundance and volatility, Atmos. Chem. Phys., 10, 5573–5592, https://doi.org/10.5194/acp-10-5573-2010, 2010. 
Brock, C. A., Schröder, F., Karcher, B., Petzold, A., Busen, R., and Fiebig, M.: Ultrafine particle size distributions measured in aircraft exhaust plumes, J. Geophys. Res.-Atmos., 105, 26555–26567, https://doi.org/10.1029/2000jd900360, 2000. 
Brock, C. A., Williamson, C., Kupc, A., Froyd, K., Erdesz, F., Wagner, N., Richardson, M., Schwarz, J. P., Gao, R.-S., Katich, J., Compuzano-Jost, P., Nault, B., Schroder, J., Jimenez, J. L., Weinzierl, B., Dollner, M., Bui, T., and Murphy, D. M.: Aerosol size distribution measurements during the Atmospheric Tomography (ATom) mission: Methods, uncertainties, and data products, Atmos. Meas. Tech., in preparation, 2018. 
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We describe the operating principle, design and performance of the Nucleation Mode Aerosol Size Spectrometer (NMASS), an instrument composed of 5 condensation particle counters measuring size selected particle concentrations between 3 and 60 nm. An inversion to recover size distributions from the data is evaluated. Calibrations of a 2-NMASS system for measuring size distributions on the NASA Atmospheric Tomography Mission, and examples of its in-flight performance are presented.