Articles | Volume 15, issue 24
https://doi.org/10.5194/acp-15-13993-2015
https://doi.org/10.5194/acp-15-13993-2015
Research article
 | 
18 Dec 2015
Research article |  | 18 Dec 2015

Spring and summer contrast in new particle formation over nine forest areas in North America

F. Yu, G. Luo, S. C. Pryor, P. R. Pillai, S. H. Lee, J. Ortega, J. J. Schwab, A. G. Hallar, W. R. Leaitch, V. P. Aneja, J. N. Smith, J. T. Walker, O. Hogrefe, and K. L. Demerjian

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AR by Fangqun Yu on behalf of the Authors (24 Nov 2015)  Author's response   Manuscript 
ED: Publish as is (24 Nov 2015) by Veli-Matti Kerminen
AR by Fangqun Yu on behalf of the Authors (04 Dec 2015)
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Short summary
The role of low-volatility organics in new particle formation (NPF) in the atmosphere is assessed. An empirical formulation in which formation rate is a function of the concentrations of sulfuric acid and low-volatility organics significantly overpredicts NPF in the summer. Two different schemes predict quite different nucleation rates (including their spatial patterns), concentrations of cloud condensation nuclei, and aerosol first indirect radiative forcing in North America.
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