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A random walk model of dispersion in the diabatic surface layer
Author(s) -
Ley Anne J.,
Thomson D. J.
Publication year - 1983
Publication title -
quarterly journal of the royal meteorological society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.744
H-Index - 143
eISSN - 1477-870X
pISSN - 0035-9009
DOI - 10.1002/qj.49710946212
Subject(s) - diabatic , random walk , similarity (geometry) , stability (learning theory) , dispersion (optics) , surface layer , mathematics , statistical physics , surface (topology) , constant (computer programming) , layer (electronics) , meteorology , atmospheric sciences , physics , statistics , geometry , thermodynamics , materials science , optics , computer science , composite material , artificial intelligence , machine learning , adiabatic process , image (mathematics) , programming language
A two‐dimensional random walk atmospheric dispersion model applicable to a passive pollutant within the surface layer in all stability conditions is described. Numerical concentration profiles from the model are shown to be in good agreement with experimental data. Lagrangian statistics from the model are compared with Lagrangian similarity theory, and the variation of the similarity constant c with stability is studied. The similarity properties of the root‐mean‐square cloud height σ 2 are also investigated.