Effects of atmospheric transformations of the organic fraction of biomass burning aerosol on the radiative forcing: a box model analysis

被引：0
作者：
Konovalov, Igor B. [1 ]
Golovushkin, Nikolai A. [1 ]
Zhuravleva, Tatyana B. [2 ]
Nastrdinov, Ilmir M. [2 ]
Lvova, Daria A. [1 ]
Beekmann, Matthias [3 ]
机构：
[1] Russian Acad Sci, Inst Appl Phys, 46 Ulyanov Str, Nizhnii Novgorod 603950, Russia
[2] VE Zuev Inst Atmospher Opt SB RAS, Acad Zuev Sq 1, Tomsk 634055, Russia
[3] Univ Paris, Inst Pierre Simon Lapl, Univ Paris Est Creteil, Lab Interuniv Syst Atmospher LISA,CNRS,UMR 7583, F-94010 Creteil, France
来源：
27TH INTERNATIONAL SYMPOSIUM ON ATMOSPHERIC AND OCEAN OPTICS, ATMOSPHERIC PHYSICS | 2021年 / 11916卷
基金：
俄罗斯基础研究基金会;
关键词：
Biomass burning; organic aerosol; radiative forcing; volatility basis set; microphysical model; Mie theory calculations; radiative transfer; OPTICAL-PROPERTIES; TRACE GASES; EMISSIONS; EVOLUTION; ABSORPTION; SCATTERING; PARTICLES; PLUMES; CLOUDS;
D O I：
10.1117/12.2603383
中图分类号：
P4 [大气科学（气象学）];
学科分类号：
0706 ; 070601 ;
摘要：
We present the first results of our numerical study aimed at identifying the possible effects of the atmospheric evolution of biomass burning (BB) aerosol on the aerosol direct radiative forcing (DRF). We used a microphysical box model, which implements different parameterizations of the organic aerosol evolution within the volatility basis set framework, along with the Mie theory and radiative transfer calculations to simulate the dynamics of the physical, optical and radiative properties of polydisperse carbonaceous aerosol in an isolated BB smoke plume. We found that atmospheric transformations of the organic fraction of BB aerosol can result in major changes in the BB aerosol DRF. These changes are related to the underlying variations in the aerosol optical depth and single scattering albedo in a nonlinear manner and are especially strong in optically dense plumes.
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页数：9
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