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Dispersion in the Atmosphere

  • Leif PerssonEmail author
  • Lennart Thaning
Chapter
Part of the Integrated Analytical Systems book series (ANASYS)

Abstract

When a bioaerosol is introduced to the atmosphere, the concentration will decrease when the aerosol is transported and diluted by wind and turbulence. Other processes, like deposition and biological decay will also act to diminish the concentration. Many important aspects of this take place in the turbulent atmospheric boundary layer i.e. basically within the lowest km the atmosphere. After a brief review of the subdivision of the atmospheric into different layers, we demonstrate by using results from a relatively simple dispersion model for the boundary layer, how different processes affect the resulting concentration. Finally we discuss the implications of sparse and highly fluctuating observed data on the meteorological modeling process. We discuss phenomenological and behavioral models, and we classify errors into model error, input data error and numerical error. We discuss the payoff between the explanatory power and the difficulties of estimating parameters for a detailed model.

Keywords

Wind Speed Planetary Boundary Layer Convective Boundary Layer Stable Boundary Layer Planetary Boundary Layer Height 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag New York 2014

Authors and Affiliations

  1. 1.Division of CBRN Defence and SecurityFOI—Swedish Defence Research AgencyUmeåSweden

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