Inferring absorbing organic carbon content from AERONET data

被引:162
作者
Arola, A. [1 ]
Schuster, G. [2 ]
Myhre, G. [3 ]
Kazadzis, S. [4 ]
Dey, S. [5 ]
Tripathi, S. N. [6 ,7 ]
机构
[1] Finnish Meteorol Inst, Kuopio 70211, Finland
[2] NASA, Langley Res Ctr Hampton, Hampton, VA 23681 USA
[3] Ctr Int Climate & Environm Res Oslo CICERO, N-0318 Oslo, Norway
[4] Natl Observ Athens, Inst Environm Res & Sustainable Dev, Athens 15236, Greece
[5] Univ Illinois, Dept Atmospher Sci, Urbana, IL USA
[6] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20770 USA
[7] Indian Inst Technol, Dept Civil Engn, Kanpur 208016, Uttar Pradesh, India
关键词
AEROSOL OPTICAL-PROPERTIES; BIOMASS BURNING EMISSIONS; BLACK CARBON; LIGHT-ABSORPTION; BROWN CARBON; SPECTRAL DEPENDENCE; INDUSTRIAL-CITY; NORTHERN INDIA; MASS; RETRIEVAL;
D O I
10.5194/acp-11-215-2011
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Black carbon, light-absorbing organic carbon (often called "brown carbon") and mineral dust are the major light-absorbing aerosols. Currently the sources and formation of brown carbon aerosol in particular are not well understood. In this study we estimated the amount of light-absorbing organic carbon and black carbon from AERONET measurements. We find that the columnar absorbing organic carbon (brown carbon) levels in biomass burning regions of South America and Africa are relatively high (about 15-20 mg m(-2) during biomass burning season), while the concentrations are significantly lower in urban areas in US and Europe. However, we estimated significant absorbing organic carbon amounts from the data of megacities of newly industrialized countries, particularly in India and China, showing also clear seasonality with peak values up to 30-35 mg m(-2) during the coldest season, likely caused by the coal and biofuel burning used for heating. We also compared our retrievals with the modeled organic carbon by the global Oslo CTM for several sites. Model values are higher in biomass burning regions than AERONET-based retrievals, while the opposite is true in urban areas in India and China.
引用
收藏
页码:215 / 225
页数:11
相关论文
共 45 条
[1]   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
[2]   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
[3]   Emission of trace gases and aerosols from biomass burning [J].
Andreae, MO ;
Merlet, P .
GLOBAL BIOGEOCHEMICAL CYCLES, 2001, 15 (04) :955-966
[4]  
[Anonymous], ABSORPTION SCATTERIN
[5]   Estimation of the mass absorption cross section of the organic carbon component of aerosols in the Mexico City Metropolitan Area [J].
Barnard, J. C. ;
Volkamer, R. ;
Kassianov, E. I. .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2008, 8 (22) :6665-6679
[6]   Spectral absorption properties of atmospheric aerosols [J].
Bergstrom, R. W. ;
Pilewskie, P. ;
Russell, P. B. ;
Redemann, J. ;
Bond, T. C. ;
Quinn, P. K. ;
Sierau, B. .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2007, 7 (23) :5937-5943
[7]   Light absorption by carbonaceous particles: An investigative review [J].
Bond, TC ;
Bergstrom, RW .
AEROSOL SCIENCE AND TECHNOLOGY, 2006, 40 (01) :27-67
[8]   Spectral dependence of visible light absorption by carbonaceous particles emitted from coal combustion [J].
Bond, TC .
GEOPHYSICAL RESEARCH LETTERS, 2001, 28 (21) :4075-4078
[9]   Spatial and seasonal distributions of carbonaceous aerosols over China [J].
Cao, J. J. ;
Lee, S. C. ;
Chow, J. C. ;
Watson, J. G. ;
Ho, K. F. ;
Zhang, R. J. ;
Jin, Z. D. ;
Shen, Z. X. ;
Chen, G. C. ;
Kang, Y. M. ;
Zou, S. C. ;
Zhang, L. Z. ;
Qi, S. H. ;
Dai, M. H. ;
Cheng, Y. ;
Hu, K. .
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2007, 112 (D22)
[10]   Light absorption by organic carbon from wood combustion [J].
Chen, Y. ;
Bond, T. C. .
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2010, 10 (04) :1773-1787