气候变化领域集成服务门户(CCPortal): Contribution of brown carbon to the light absorption and radiative effect of carbonaceous aerosols from biomass burning emissions in Chiang Mai, Thailand

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DOI	10.1016/j.atmosenv.2021.118544
	Contribution of brown carbon to the light absorption and radiative effect of carbonaceous aerosols from biomass burning emissions in Chiang Mai, Thailand
	Zhang Y.; Peng Y.; Song W.; Zhang Y.-L.; Ponsawansong P.; Prapamontol T.; Wang Y.
发表日期	2021
ISSN	1352-2310
卷号	260
英文摘要	Chiang Mai suffers from adverse haze associated with heavy biomass burning (BB) during almost every dry season (February to April). As an important source of light-absorbing carbonaceous aerosols (black carbon and brown carbon), BB can have strong radiative effects on local and regional climate. However, studies on characterizing the impacts of BB aerosols on climate in Chiang Mai are quite limited. In this study, we use a global chemical transport model (GEOS-Chem) coupled with the rapid radiative transfer model for GCMs (RRTMG) to estimate the radiative forcing (RF) of BB aerosols in Chiang Mai. Brown carbon (BrC) is included as an absorber and treated as an individual tracer in the model. To our best knowledge, this is the first study to estimate the BrC RF in Chiang Mai. As evaluated, our simulations that were assigned with medium- and high-absorbing kBrC (BrC imaginary refractive index) well reproduces the absorption coefficient of ambient BrC in Chiang Mai. Based on our estimations, 33–40% of total carbonaceous aerosol absorption at 440 nm is attributed to BrC and 60–67% to BC during dry season. As estimated, BrC contributes 14 ± 3% to the instantaneous RF of total carbonaceous aerosol (IRFCAs) at the top of atmosphere (TOA) and 16 ± 3% to IRFCAs at surface. Moreover, including BrC in model strengthens (reduces) the surface (TOA) cooling effect of total organic carbon by 9 ± 5% (9 ± 3%), indicating the warming effect of BrC in the atmosphere in Chiang Mai. © 2021 The Author(s)
关键词	Biomass burning Brown carbon Radiative forcing Southeast asia
语种	英语
scopus关键词	Aerosols; Biomass; Bromine compounds; Drought; Light absorption; Organic carbon; Radiative transfer; Refractive index; Absorption effects; Biomass-burning; Brown carbons; Carbonaceous aerosol; Chiang Mai; Dry seasons; Radiative effects; Radiative forcings; Southeast Asia; Top of atmospheres; Atmospheric radiation; carbon; absorption coefficient; aerosol; biomass; biomass burning; brown carbon; dry season; radiative forcing; top of atmosphere; total organic carbon; aerosol; Article; atmosphere; carbon dynamics; carbon sequestration; chemical model; concentration (parameter); controlled study; cooling; dry season; light absorption; light refraction; molecular size; particulate matter 10; particulate matter 2.5; radiation scattering; radiative forcing; rainy season; refraction index; simulation; surface property; temporal analysis; total organic carbon; warming; wet deposition; Chiang Mai [Northern Region]; Northern Region [Thailand]; Thailand
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248342
作者单位	Ministry of Education Key Laboratory for Earth System Modeling, Department of Earth System Science, Tsinghua University, Beijing, China; Yale–NUIST Center on Atmospheric Environment, International Joint Laboratory on Climate and Environment Change (ILCEC), Nanjing University of Information Science and Technology, Nanjing, China; Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand; Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, United States
推荐引用方式 GB/T 7714	Zhang Y.,Peng Y.,Song W.,et al. Contribution of brown carbon to the light absorption and radiative effect of carbonaceous aerosols from biomass burning emissions in Chiang Mai, Thailand[J],2021,260.
APA	Zhang Y..,Peng Y..,Song W..,Zhang Y.-L..,Ponsawansong P..,...&Wang Y..(2021).Contribution of brown carbon to the light absorption and radiative effect of carbonaceous aerosols from biomass burning emissions in Chiang Mai, Thailand.ATMOSPHERIC ENVIRONMENT,260.
MLA	Zhang Y.,et al."Contribution of brown carbon to the light absorption and radiative effect of carbonaceous aerosols from biomass burning emissions in Chiang Mai, Thailand".ATMOSPHERIC ENVIRONMENT 260(2021).