RUSSIAN JOURNAL OF EARTH SCIENCES VOL. 10, ES1005, doi:10.2205/2007ES000275, 2008

Discussion and Conclusion

[16]  Equation (2) can be solved exactly. The final result is expressed in terms of some integrals that can be easily calculated numerically by any primitive program as well as all moments of the particle size distribution. Figures 1, 2, 3, and 4 give the examples of our calculations. The simplicity of our results is again, a consequence of the linearity of the model. Another useful consequence of the linearity is the fact that the shape of size spectra is independent of the total particle number concentration. The latter is proportional to the productivity of the particle source and can also be introduced as a fitting parameters. There are many other fitting parameters in this model like the periodical functions describing the particle source and the diurnal variations of the concentration of condensable gases. So many parameters in hands do not depreciate the model. Their introduction is an eventual step.

[17]  As has been mentioned above, the full model of aerosol evolution in the atmosphere includes two interacting blocks: i. the chemical block describing formation of condensable gases and ii. the aerosol block. We separated these blocks by paying for this a good price: we introduced the concentrations of condensable gases and the fresh particle source as external parameters. But in return we acquired the linearity of the model. The point is that the aerosol-trace gases interaction make the full model nonlinear. Meanwhile, as we explained in Section 2 the aerosol process governing the time evolution of the nucleation mode is linear.


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Citation: Lushnikov, A. A., Yu. S. Lyubovtseva, and M. Kulmala (2008), A model of nucleation bursts, Russ. J. Earth Sci., 10, ES1005, doi:10.2205/2007ES000275.

Copyright 2008 by the Russian Journal of Earth Sciences

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