Contribution of brown carbon and lensing to the direct radiative effect of carbonaceous aerosols from biomass and biofuel burning emissions

被引:178
作者
Saleh, Rawad [1 ]
Marks, Marguerite [1 ]
Heo, Jinhyok [1 ]
Adams, Peter J. [1 ]
Donahue, Neil M. [1 ]
Robinson, Allen L. [1 ]
机构
[1] Carnegie Mellon Univ, Ctr Atmospher Particle Studies, Pittsburgh, PA 15213 USA
基金
美国国家科学基金会;
关键词
D O I
10.1002/2015JD023697
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
We present global direct radiative effect (DRE) calculations of carbonaceous aerosols emitted from biomass/biofuel burning addressing the interplay between two poorly constrained contributions to DRE: mixing state of black carbon (lensing) and light absorption by organic aerosol (OA) due to the presence of brown carbon (BrC). We use the parameterization of Saleh et al. (2014) which captures the variability in biomass/biofuel OA absorption. The global mean effect of OA absorption is +0.22 W/m(2) and +0.12 W/m(2) for externally and internally mixed cases, while the effect of lensing is +0.39 W/m(2) and +0.29 W/m(2) for nonabsorbing and absorbing OA cases, signifying the nonlinear interplay between OA absorption and lensing. These two effects can be overestimated if not treated simultaneously in radiative transfer calculations. The combined effect of OA absorption and lensing increases the global mean DRE of biomass/biofuel aerosols from -0.46 W/m(2) to +0.05 W/m(2) and appears to reduce the gap between existingmodel-based and observationally constrained DRE estimates. We observed a strong sensitivity to these parameters in key regions, where DRE shifts from strongly negative (<-1 W/m(2)) to strongly positive (>+1 W/m(2)) when accounting for lensing and OA absorption.
引用
收藏
页码:10285 / 10296
页数:12
相关论文
共 79 条
[1]   Shapes of soot aerosol particles and implications for their effects on climate [J].
Adachi, Kouji ;
Chung, Serena H. ;
Buseck, Peter R. .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2010, 115
[2]   Emission factors for open and domestic biomass burning for use in atmospheric models [J].
Akagi, S. K. ;
Yokelson, R. J. ;
Wiedinmyer, C. ;
Alvarado, M. J. ;
Reid, J. S. ;
Karl, T. ;
Crounse, J. D. ;
Wennberg, P. O. .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2011, 11 (09) :4039-4072
[3]   Brown carbon spheres in East Asian outflow and their optical properties [J].
Alexander, Duncan T. L. ;
Crozier, Peter A. ;
Anderson, James R. .
SCIENCE, 2008, 321 (5890) :833-836
[4]  
Anderson G.P., 1986, AIR FORCE GEOPHYS LA
[5]   Black carbon or brown carbon?: The nature of light-absorbing carbonaceous aerosols [J].
Andreae, M. O. ;
Gelencser, A. .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2006, 6 :3131-3148
[6]  
[Anonymous], CLIMATE SYSTEM
[7]   Development of an online radiative module for the computation of aerosol optical properties in 3-D atmospheric models: validation during the EUCAARI campaign [J].
Aouizerats, B. ;
Thouron, O. ;
Tulet, P. ;
Mallet, M. ;
Gomes, L. ;
Henzing, J. S. .
GEOSCIENTIFIC MODEL DEVELOPMENT, 2010, 3 (02) :553-564
[8]   A global modeling study on carbonaceous aerosol microphysical characteristics and radiative effects [J].
Bauer, S. E. ;
Menon, S. ;
Koch, D. ;
Bond, T. C. ;
Tsigaridis, K. .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2010, 10 (15) :7439-7456
[9]   Evaluation of aerosol mixing state classes in the GISS modelE-MATRIX climate model using single-particle mass spectrometry measurements [J].
Bauer, Susanne E. ;
Ault, Andrew P. ;
Prather, Kimberly A. .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2013, 118 (17) :9834-9844
[10]   Global modeling of tropospheric chemistry with assimilated meteorology: Model description and evaluation [J].
Bey, I ;
Jacob, DJ ;
Yantosca, RM ;
Logan, JA ;
Field, BD ;
Fiore, AM ;
Li, QB ;
Liu, HGY ;
Mickley, LJ ;
Schultz, MG .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2001, 106 (D19) :23073-23095