About seasonal dynamics of the vertical profiles of single scattering albedo of submicron aerosol in the lower troposphere

被引：0
|
作者：
Kozlov, V [1 ]
Panchenko, M [1 ]
Shmargunov, V [1 ]
机构：
[1] Russian Acad Sci, Inst Atmospher Opt, SB, Tomsk 634055, Russia
来源：
TENTH JOINT INTERNATIONAL SYMPOSIUM ON ATMOSPHERIC AND OCEAN OPTICS/ATMOSPHERIC PHYSICS, PT 2: LASER SENSING AND ATMOSPHERIC PHYSICS | 2004年 / 5397卷
关键词：
submicron aerosol; soot; single scattering albedo; relative content of soot; vertical profiles;
D O I：
10.1117/12.548568
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Analysis of the vertical profiles of the concentrations of aerosol and soot obtained in 1999-2002 in the troposphere of West Siberia up to 7 km is carried out. The peculiarities of the dynamics of the single scattering albedo (SSA) and the relative content of soot (RCS) for dry aerosol are studied. The year-to-year stability of the vertical profiles and their seasonal dynamics is observed. The values of albedo increase mainly with height that is caused by the decrease of RCS. Significant seasonal variability of the vertical profiles is observed, closely related to temperature stratification of the boundary layer of the atmosphere. The greatest dynamics of the albedo is observed in cold season. In fall-winter seasons albedo varies with height from 0.75 to 0.98, the respective variations of RCS are from 0.15 to 0.01. The greatest variations of the aerosol absorption characteristics with height are observed at the heights below I km. In warm season the ranges of variations of albedo narrow to 0.9-0.98, and the range of RCS becomes 0.06-0.01. Seasonal differences in the albedo and the relative content of soot are mainly observed in the lower layer of the troposphere below I kin. Seasonal differences at the heights above 1 km are weakly pronounced.
引用
收藏
页码：66 / 71
页数：6
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