Vol. 26, issue 08, article # 1

Shmirko K.A., Pavlov A.N., Stolyarchuk S.Yu., Bukin O.A., Bobrikov A.A., Pol'kin V.V., Nguen Suan.An'. Variations of aerosol microphysical parameters in the ground atmospheric layer of the transitional zone "land-ocean". // Optika Atmosfery i Okeana. 2013. V. 26. No. 08. P. 619-627 [in Russian].
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Abstract:

This article provides the results of investigations of aerosol microphysical properties variations in the lower part of the atmosphere in the Primorye coastal area. The analyzed data were obtained during the period from 01.08.2010 till 31.12.2012 at the lidar station of the Institute of Automation and Control Processes FEB RAS. Typical values of mass concentration of submicron aerosols, black carbon and particle size distribution functions were obtained for different seasons. During the winter with strong north winds and low relative humidity values (50±20)% a dry continental aerosol dominates at the region of investigation and numerical aerosol concentration (Na) has higher values between 100 and 120 cm-3. During the summertime when south winds dominate and relative humidity reaches values of 98%, Na has low values of (5±5) in June, 2011 and (44±20) cm-3 in July, 2011. Diurnal variations of mass and numerical concentrations of atmospheric aerosols and black carbon are well-defined in winter. Modal radius of fine aerosol particles has values of 0.275μm in summertime and 0.375μm in wintertime and for the coarse aerosol particles modal radius reaches 1.05 and 2.5μm in winter and summertime, consequently. The more stable seasonal and diurnal variations were obtained from black carbon mass concentration measurements. Its values vary in the range from (0.5 0.5) at the early summer to (3.0±2.0) g/m3 in winter. It was shown that diurnal variations of MBC in Tomsk and Primorye coastal area have the same shape, but in the last case the amplitude of variations is bigger.

Keywords:

atmospheric aerosol, transitional zone "land-ocean", Primorye

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