Macroturbulence fluctuations of air impurities concentration and refractive index in the bottom layer

Andrei A. Jouravlev; Guerman M. Teptin

doi:10.1117/12.497205

27 March 2003 Macroturbulence fluctuations of air impurities concentration and refractive index in the bottom layer

Andrei A. Jouravlev, Guerman M. Teptin

Proceedings Volume 5026, Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part I: Radiation Propagation in the Atmosphere and Ocean; (2003) https://doi.org/10.1117/12.497205
Event: Ninth Joint International symposium on Atmospheric and Ocean Optics, 2002, Tomsk, Russian Federation

Abstract

Spatial variability of impurity concentration and refraction index in the bottom layer for the turbulence scales interval 1-6 km is investigated in this paper. This work is based on the data of continuous monitoring of urban air parameters. Structural functions of impurty concentrations and that of calculated refraction index were plotted to measuring. Approximation of the obtained structural functions by power-behaved dependence showed that in the reseached range the exponent has the value (0,4-0,6) and decreases with increasing of the distance. Experimentally obtained results correspond well with theory of large-scale turbulence. The separate research has shown, that in scales range 1-3.5 kms exponent located in the range (0,6-1), and in the range 3,5-6 kms-(0.01-0.22). Thus the impurities with the horizontal scales of 1-6 km in the bottom layer are located in the boundary of buoyancy range and of the large-scale turbulence range.

Citation Download Citation

Andrei A. Jouravlev and Guerman M. Teptin "Macroturbulence fluctuations of air impurities concentration and refractive index in the bottom layer", Proc. SPIE 5026, Ninth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics. Part I: Radiation Propagation in the Atmosphere and Ocean, (27 March 2003); https://doi.org/10.1117/12.497205

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KEYWORDS

Refractive index

Turbulence

Water

Aerosols

Gases

Molecules

Correlation function

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