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Proceedings Paper

Peculiarities of the diurnal dynamics of the aerosol optical thickness of the atmosphere in IR wavelength range and its physical interpretation
Author(s): Yu. A. Pkhalagov; V. N. Uzhegov; S. M. Sakerin; D. M. Kabanov; S. L. Odintsov
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Paper Abstract

Analysis is carried out of the diurnal dynamics of the aerosol optical thickness of the atmosphere τA(λ) and the aerosol extinction coefficients in the near-ground layer α(λ) in the wavelength range λ = 0.44 - 1.06 μm, as well as of the vertical turbulent heat flux, measured simultaneously in June 2004 in the region of Tomsk. It is revealed that aerosol extinction in the near-ground layer in the range λ = 1.06 μm under conditions of small cloud fraction continuously increases during a day, but the aerosol optical thickness increases before 12-2 p.m., and then rapidly decreases. Probably, this fact is one of the factors of weak correlation between variations of the aerosol extinction of optical radiation on a near-ground path and in the atmospheric column. It is shown that the diurnal dynamics of τA(1.06) well correlates with the dynamics of the vertical turbulent heat flux.

Paper Details

Date Published: 21 April 2006
PDF: 5 pages
Proc. SPIE 6160, Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics, 61601M (21 April 2006); doi: 10.1117/12.675331
Show Author Affiliations
Yu. A. Pkhalagov, Institute of Atmospheric Optics (Russia)
V. N. Uzhegov, Institute of Atmospheric Optics (Russia)
S. M. Sakerin, Institute of Atmospheric Optics (Russia)
D. M. Kabanov, Institute of Atmospheric Optics (Russia)
S. L. Odintsov, Institute of Atmospheric Optics (Russia)


Published in SPIE Proceedings Vol. 6160:
Twelfth Joint International Symposium on Atmospheric and Ocean Optics/Atmospheric Physics

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