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DOI	10.1029/2023GL107833
	Strong Aerosol Absorption and Its Radiative Effects in Lhasa on the Tibetan Plateau
	Wang, Shuo; Zhao, Weixiong; Liu, Qianqian; Zhou, Jiacheng; Crumeyrolle, Suzanne; Xu, Xuezhe; Zhang, Chong; Ye, Chunxiang; Zheng, Yu; Che, Huizheng; Zhang, Weijun
发表日期	2024
ISSN	0094-8276
EISSN	1944-8007
起始页码	51
结束页码	6
卷号	51 期号:6
英文摘要	Knowledge of aerosol radiative effects in the Tibetan Plateau (TP) is limited due to the lack of reliable aerosol optical properties, especially the single scattering albedo (SSA). We firstly reported in situ measurement of SSA in Lhasa using a cavity enhanced albedometer (CEA) at lambda = 532 nm from 22nd May to 11th June 2021. Unexpected strong aerosol absorbing ability was observed with an average SSA of 0.69. Based on spectral absorptions measured by Aethalometer (AE33), black carbon (BC) was found to be the dominated absorbing species, accounting for about 83% at lambda = 370 nm, followed by primary and secondary brown carbon (BrCpri and BrCsec). The average direct aerosol radiative forcing at the top of atmosphere (DARFTOA) was 2.83 W/m2, indicating aerosol warming effect on the Earth-atmosphere system. Even though aerosol loading is low, aerosol heating effect plays a significant role on TP warming due to strong absorbing ability. The Tibetan Plateau (TP) has experienced rapid warming over the past decades, but the key factors affecting TP climate change haven't yet been clearly understood. Aerosol single scattering albedo (SSA) is a key optical parameter determining aerosol warming or cooling effect; however, reliable SSA measurement is scarce in TP. This study firstly reported in situ measurement of SSA in Lhasa and explored the direct radiative effect of aerosol on TP warming. Strong aerosol absorption, mainly contributed by black carbon (BC), was observed with an average SSA value of 0.69 in this city. Besides Lhasa, other sites over TP were also reported with low SSA (<= 0.77) from surface measurement. The strong aerosol absorption could cause heating effect on the Earth-atmosphere system. To relieve TP warming, reasonable pollutant emission control strategies should be taken urgently to weaken aerosol absorbing ability. Unexpected low aerosol single scattering albedo was observed in Lhasa via in situ measurement of multiple optical parameters simultaneously Black carbon was the dominant contributor (similar to 83%) to aerosol absorption at 370 nm, followed by primary and secondary brown carbon The strong absorption in Lhasa exerted positive direct aerosol radiative forcing (warming effect) at the top of atmosphere
英文关键词	aerosol optical properties; single scattering albedo; in situ measurement; aerosol absorption contributions; direct aerosol radiative forcing; Tibetan Pleateau warming
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001189272800001
来源期刊	GEOPHYSICAL RESEARCH LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/305601
作者单位	Chinese Academy of Sciences; Hefei Institutes of Physical Science, CAS; Anhui Institute of Optics & Fine Mechanics (AIOFM), CAS; Chinese Academy of Sciences; University of Science & Technology of China, CAS; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute for Earth Sciences & Astronomy (INSU); Universite de Lille; Peking University; China Meteorological Administration; Chinese Academy of Meteorological Sciences (CAMS); China Meteorological Administration; Chinese Academy of Meteorological Sciences (CAMS)
推荐引用方式 GB/T 7714	Wang, Shuo,Zhao, Weixiong,Liu, Qianqian,et al. Strong Aerosol Absorption and Its Radiative Effects in Lhasa on the Tibetan Plateau[J],2024,51(6).
APA	Wang, Shuo.,Zhao, Weixiong.,Liu, Qianqian.,Zhou, Jiacheng.,Crumeyrolle, Suzanne.,...&Zhang, Weijun.(2024).Strong Aerosol Absorption and Its Radiative Effects in Lhasa on the Tibetan Plateau.GEOPHYSICAL RESEARCH LETTERS,51(6).
MLA	Wang, Shuo,et al."Strong Aerosol Absorption and Its Radiative Effects in Lhasa on the Tibetan Plateau".GEOPHYSICAL RESEARCH LETTERS 51.6(2024).