气候变化领域集成服务门户(CCPortal): Strong particle production and condensational growth in the uppertroposphere sustained by biogenic VOCs from the canopy of the Amazon Basin

CCPortal

DOI	10.5194/acp-23-251-2023
	Strong particle production and condensational growth in the uppertroposphere sustained by biogenic VOCs from the canopy of the Amazon Basin
	Liu, Yunfan; Su, Hang; Wang, Siwen; Wei, Chao; Tao, Wei; Poehlker, Mira L.; Poehlker, Christopher; Holanda, Bruna A.; Krueger, Ovid O.; Hoffmann, Thorsten; Wendisch, Manfred; Artaxo, Paulo; Poeschl, Ulrich; Andreae, Meinrat O.; Cheng, Yafang
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	251
结束页码	272
卷号	23 期号:1 页码:22
英文摘要	Nucleation and condensation associated with biogenic volatile organic compounds (BVOCs) are important aerosol formation pathways, yet their contribution to the upper-tropospheric aerosols remains inconclusive, hindering the understanding of aerosol climate effects. Here, we develop new schemes describing these organic aerosol formation processes in the WRF-Chem model and investigate their impact on the abundance of cloud condensation nuclei (CCN) in the upper troposphere (UT) over the Amazon Basin. We find that the new schemes significantly increase the simulated CCN number concentrations in the UT (e.g., up to & SIM; 400 cm-3 at 0.52 % supersaturation) and greatly improve the agreement with the aircraft observations. Organic condensation enhances the simulated CCN concentration by 90 % through promoting particle growth, while organic nucleation, by replenishing new particles, contributes an additional 14 %. Deep convection determines the rate of these organic aerosol formation processes in the UT through controlling the upward transport of biogenic precursors (i.e., BVOCs). This finding emphasizes the importance of the biosphere-atmosphere coupling in regulating upper-tropospheric aerosol concentrations over the tropical forest and calls for attention to its potential role in anthropogenic climate change.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000913506000001
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/273410
作者单位	Max Planck Society; Max Planck Society; Max Planck Society; University of California System; University of California San Diego; Scripps Institution of Oceanography; Johannes Gutenberg University of Mainz; Leibniz Institut fur Tropospharenforschung (TROPOS); Leipzig University; Universidade de Sao Paulo
推荐引用方式 GB/T 7714	Liu, Yunfan,Su, Hang,Wang, Siwen,et al. Strong particle production and condensational growth in the uppertroposphere sustained by biogenic VOCs from the canopy of the Amazon Basin[J],2023,23(1):22.
APA	Liu, Yunfan.,Su, Hang.,Wang, Siwen.,Wei, Chao.,Tao, Wei.,...&Cheng, Yafang.(2023).Strong particle production and condensational growth in the uppertroposphere sustained by biogenic VOCs from the canopy of the Amazon Basin.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(1),22.
MLA	Liu, Yunfan,et al."Strong particle production and condensational growth in the uppertroposphere sustained by biogenic VOCs from the canopy of the Amazon Basin".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.1(2023):22.