A MODEL OF NUCLEATION BURSTS
Rubrics: ORIGINAL ARTICLES
Authors:
1.
Department of Physical Sciences, University of Helsinki, Helsinki, Finland
2.
Geophysical Center, Russian Academy of Sciences, Moscow, Russia
3.
Department of Physical Sciences, University of Helsinki, Helsinki, Finland
Type:
Article
Pages:
from 1
to 4
Status:
Published
Received:
25.02.2008
Accepted:
25.02.2008
Published:
25.02.2008
Language:
English
Keywords:
nucleation burst, atmospheric aerosols, nucleation mode, condensational growth.
Abstract (English):
A simple linear (with respect to aerosol particle size distribution) model of nucleation bursts in the atmosphere is proposed. The model includes two sources of nonvolatile species, one of which nucleates producing the aerosol particles and the other one condenses onto the particles giving rise to their growth. The most important consequence of the linearity is that the particle size distribution can be presented as a superposition of different regimes. In particular, if the source-enhanced regime is combined with a free one, the latter produces a runaway mode in the particle size distribution appears. The model serves for estimating the CCN productivity by nucleation bursts.
A simple linear (with respect to aerosol particle size distribution) model of nucleation bursts in the atmosphere is proposed. The model includes two sources of nonvolatile species, one of which nucleates producing the aerosol particles and the other one condenses onto the particles giving rise to their growth. The most important consequence of the linearity is that the particle size distribution can be presented as a superposition of different regimes. In particular, if the source-enhanced regime is combined with a free one, the latter produces a runaway mode in the particle size distribution appears. The model serves for estimating the CCN productivity by nucleation bursts.
Keywords:
nucleation burst, atmospheric aerosols, nucleation mode, condensational growth.
nucleation burst, atmospheric aerosols, nucleation mode, condensational growth.
1. Kulmala, Nature, v. 404, 2000., doi:https://doi.org/10.1038/35003550
2. Lushnikov, J. Aerosol Sci., v. 31, 2000., doi:https://doi.org/10.1016/S0021-8502(99)00553-4
3. Lushnikov, Phys. Rev. E, v. 70, no. 046413, 2004.
4. Phillips, J. Phys. Fluids, v. 18, 1975.
