Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9460485 | Journal of Aerosol Science | 2005 | 24 Pages |
Abstract
A numerical model for atmospheric aerosol nucleation bursts is presented as a tool for the analysis of measurements. It includes a minimum of physical assumptions and 94 user-controlled parameters. The model is based on computationally efficient parametrization of submodels, which allow considering the ion-induced and homogeneous nucleation, depletion of nanoparticles and ions on the pre-existing aerosol, the nano-Köhler growth function, the molecule-particle interception geometry, quantum retardation of sticking, the electric charges of particles, the molecular dipole moments, and the polarization interaction. The evolution of the size distribution is computed using a sectional model with several thousands of sections. Computing time on an ordinary PC is counted in seconds in case of a typical task with several thousands of time steps and several thousands of size sections.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
H. Tammet, M. Kulmala,