气候变化领域集成服务门户(CCPortal): Measurement report: Quantifying source contribution of fossil fuels and biomass-burning black carbon aerosol in the southeastern margin of the Tibetan Plateau

CCPortal

DOI	10.5194/acp-21-973-2021
	Measurement report: Quantifying source contribution of fossil fuels and biomass-burning black carbon aerosol in the southeastern margin of the Tibetan Plateau
	Liu H.; Wang Q.; Xing L.; Zhang Y.; Zhang T.; Ran W.; Cao J.
发表日期	2021
ISSN	1680-7316
起始页码	973
结束页码	987
卷号	21 期号:2
英文摘要	Anthropogenic emissions of black carbon (BC) aerosol are transported from Southeast Asia to the southwestern Tibetan Plateau (TP) during the pre-monsoon; however, the quantities of BC from different anthropogenic sources and the transport mechanisms are still not well constrained because there have been no high-time-resolution BC source apportionments. Intensive measurements were taken in a transport channel for pollutants from Southeast Asia to the southeastern margin of the TP during the pre-monsoon to investigate the influences of fossil fuels and biomass burning on BC. A receptor model that coupled multi-wavelength absorption with aerosol species concentrations was used to retrieve site-specific Ångström exponents (AAEs) and mass absorption cross sections (MACs) for BC. An "aethalometer model" that used those values showed that biomass burning had a larger contribution to BC mass than fossil fuels (BCbiomassCombining double low line57 % versus BCfossilCombining double low line43 %). The potential source contribution function indicated that BCbiomass was transported to the site from northeastern India and northern Burma. The Weather Research and Forecasting model coupled with chemistry (WRF-Chem) indicated that 40 % of BCbiomass originated from Southeast Asia, while the high BCfossil was transported from the southwest of the sampling site. A radiative transfer model indicated that the average atmospheric direct radiative effect (DRE) of BC was +4.6 ± 2.4 W m-2, with +2.5 ± 1.8 W m-2 from BCbiomass and +2.1 ± 0.9 W m-2 from BCfossil. The DRE of BCbiomass and BCfossil produced heating rates of 0.07 ± 0.05 and 0.06 ± 0.02 K d-1, respectively. This study provides insights into sources of BC over a transport channel to the southeastern TP and the influence of the cross-border transportation of biomass-burning emissions from Southeast Asia during the pre-monsoon. © 2021 Copernicus GmbH. All rights reserved.
语种	英语
scopus关键词	aerosol; biomass burning; black carbon; fossil fuel; quantitative analysis; radiative transfer; China; India; Myanmar; Qinghai-Xizang Plateau
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/247202
作者单位	State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; Key Laboratory of Aerosol Chemistry and Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China; University of Chinese Academy of Sciences, Beijing, 100049, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, China; School of Geography and Tourism, Shaanxi Normal University, Xi'an, 710119, China
推荐引用方式 GB/T 7714	Liu H.,Wang Q.,Xing L.,et al. Measurement report: Quantifying source contribution of fossil fuels and biomass-burning black carbon aerosol in the southeastern margin of the Tibetan Plateau[J],2021,21(2).
APA	Liu H..,Wang Q..,Xing L..,Zhang Y..,Zhang T..,...&Cao J..(2021).Measurement report: Quantifying source contribution of fossil fuels and biomass-burning black carbon aerosol in the southeastern margin of the Tibetan Plateau.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(2).
MLA	Liu H.,et al."Measurement report: Quantifying source contribution of fossil fuels and biomass-burning black carbon aerosol in the southeastern margin of the Tibetan Plateau".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.2(2021).