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- Title
A numerical comparison of different methods for determining the particle formation rate.
- Authors
Vuollekoski, H.; Sihto, S.-L.; Kerminen, V.-M.; Kulmala, M.; Lehtinen, K. E. J.; Swietlicki, E.
- Abstract
Different methods of determining formation rates of 3 nm particles are compared, basing on analysis of simulated data, but the results are valid for analyses of experimental particle size distribution data as well, at least within the accuracy of the applied model. The study shows that the method of determining formation rates indirectly from measured number concentration data of 3-6 nm particles is generally in good agreement with the theoretical calculation with a systematic error of 0-20 %. While this accuracy is often enough, a simple modification to the approximative equation for the formation rate is recommended. A brief study on real atmospheric data implied that in some cases the accuracy gain may be significant.
- Subjects
PARTICLE size determination; NUMERICAL analysis; PARTICLE size distribution; ACCURACY; ENVIRONMENTAL sciences; ATMOSPHERIC physics
- Publication
Atmospheric Chemistry & Physics, 2012, Vol 12, Issue 5, p2289
- ISSN
1680-7316
- Publication type
Article
- DOI
10.5194/acp-12-2289-2012