Model estimates of the dynamics of solar radiation absorption vertical structure and temperature effects under background conditions and in extreme smoke haze from data of airborne observations
T.B. Zhuravleva, M.V. Panchenko, V.S. Kozlov, I.M. Nasrtdinov, V.V. Pol’kin, S.A. Terpugova, D.G. Chernov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
Keywords: эмпирическая модель аэрозоля, фоновые условия, дымная мгла, численное моделирование, суммарное поглощение солнечной радиации, температурные эффекты, aerosol empirical model, background conditions, smoke haze, numerical simulation, daily absorption of solar radiation, thermal effects
Abstract
Quantitative estimates of the distribution of absorbed solar radiation and temperature effects in the background atmosphere and under conditions of extreme smoke haze in Siberia from empirical data and numerical modeling are presented. Vertical profiles of the aerosol characteristics are formed on the basis of an empirical model constructed from the results of airborne sounding of the angular scattering coefficient and the concentration of absorbing substance at different altitudes. It is shown that under smoke haze conditions the radiative effect of aerosol particles with a high soot content on the daily influx of solar radiation in the central part of the smoke layer exceeds 50%. The change in air temperature due to the absorption of solar radiation during the daylight time is approximately 2.5-5.5 K at variations in the smoke aerosol optical thickness in the range 2 £ smoke(0.55 m) £ 4.
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