Vol. 25, issue 12, article # 1

Uzhegov V. N., Pkhalagov Yu. A., Kabanov D. M., Sakerin S. M. Coarse aerosol and its role in shaping the height of the homogeneous aerosol atmosphere. // Optika Atmosfery i Okeana. 2012. V. 25. No. 12. P. 1023-1027 [in Russian].
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Large array of simultaneous measurements of spectral aerosol extinction coefficientsβ(λ) (surface layer) and the aerosol optical thickness τа(λ) of the atmosphere in the range λ=0,45÷3,9 μm is analyzed. In many cases, situations revealed, where the height of the homogeneous aerosol atmosphere Н0(λ) = τа(λ)/β(λ) increases with increasing wavelength in the infrared region of the spectrum. It is suggested that such anomalous spectral dependence of the Н0(λ) is associated with the presence in the boundary layer of clear atmosphere of the visually indistinguishable coarse aerosol of different nature (soil or liquid-drop). It is shown that for detection of such aerosol in the cloud-free atmosphere it is necessary to perform simultaneous measurement of β(λ) and τа(λ) at wavelength λ> 2μm.


spectral transparency of the terrestrial atmosphere, the ratio of aerosol extinction, aerosol optical thickness of the atmosphere, the height of the homogeneous aerosol atmosphere