Detection of Spatial Correlations among Aerosol Particles
| Autor: | Alexander B. Kostinski, Jonna Kannosto, Will Cantrell, Michael L. Larsen |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Independent and identically distributed random variables
business.industry Attenuation Poisson distribution Space (mathematics) Pollution Electromagnetic radiation Aerosol symbols.namesake Coagulation rate Optics symbols Environmental Chemistry General Materials Science Statistical physics business Cluster analysis Physics::Atmospheric and Oceanic Physics Mathematics |
| Zdroj: | Aerosol Science and Technology. 37:476-485 |
| ISSN: | 1521-7388 0278-6826 |
| DOI: | 10.1080/02786820300958 |
| Popis: | Most approaches for evaluating rates of fundamental processes in aerosol science depend upon the implicit assumption that aerosol particles are independently and identically distributed in space. The validity of this assumption has not been examined in several decades, despite the fact that the presence of correlations can be shown to alter theoretical expressions significantly for such phenomena as attenuation of electromagnetic radiation and coagulation rate. Here, we provide evidence that the classification of the positions of aerosol particles as a Poisson process--even under stationary conditions--is often in error. In particular, small-scale aerosol clustering is experimentally demonstrated. Some consequences of these findings are discussed. |
| Databáze: | OpenAIRE |
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