Time Variability of Turbulent Diffusion Coefficients Tensor for an Aerosol in Atmospheric Boundary Layer

  • К.Ю. Суковатов Institute for Water and Environmental Problems of the Siberian Branch of the RAS (Barnaul, Russia) Email: skonstantiny@gmail.com
  • Н.Н. Безуглова Institute for Water and Environmental Problems of the Siberian Branch of the RAS (Barnaul, Russia) Email: bezuglovan@gmail.com
DOI_disc_logo https://doi.org/10.14258/izvasu(2017)4-10
Keywords: atmospheric boundary layer, turbulent diffusion coefficients tensor, aerosol

Abstract

In this paper, data obtained by ultrasonic anemometer AMK-03 are presented and analyzed. Wind speed turbulent fluctuations and other turbulence characteristics are measured on 25 m height for urban territory. Data for anti-cyclone days and days with unstable atmospheric stratification conditions have been selected. Correlation functions for turbulent wind speed fluctuations, turbulent diffusion coefficients tensor, and its dispersion are calculated. The results of calculations of the vertical diagonal component of turbulent diffusion coefficients tensor are compared with Monin-Obukhov formulation results. Analysis demonstrates that for the most cases obtained values are close and lies within the standard deviation value of the vertical diagonal component. The correlation link between turbulent diffusion coefficients tensor components and turbulent kinetic energy, turbulence intensity, and turbulent fluxes are found. It is concluded that time variability of turbulent diffusion coefficients tensor components and other characteristics of turbulent mixing in a surface layer of atmosphere are well correlated.

DOI 10.14258/izvasu(2017)4-10

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Author Biographies

К.Ю. Суковатов, Institute for Water and Environmental Problems of the Siberian Branch of the RAS (Barnaul, Russia)
кандидат физико-математических наук, научный сотрудник лаборатории физики атмосферно-гидросферных процессов
Н.Н. Безуглова, Institute for Water and Environmental Problems of the Siberian Branch of the RAS (Barnaul, Russia)
кандидат физико-математических наук, старший научный сотрудник лаборатории физики атмосферно-гидросферных процессов

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How to Cite
Суковатов К., Безуглова Н. Time Variability of Turbulent Diffusion Coefficients Tensor for an Aerosol in Atmospheric Boundary Layer // Izvestiya of Altai State University, 1, № 4(96) DOI: 10.14258/izvasu(2017)4-10. URL: http://izvestiya.asu.ru/article/view/%282017%294-10.
Issue
No 4(96) (2017): Известия Алтайского государственного университета
Section
Статьи

Copyright (c) 2017 К.Ю. Суковатов, Н.Н. Безуглова

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