气候变化领域集成服务门户(CCPortal): Sensitivities to biological aerosol particle properties and ageing processes: Potential implications for aerosol-cloud interactions and optical properties

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DOI	10.5194/acp-21-3699-2021
	Sensitivities to biological aerosol particle properties and ageing processes: Potential implications for aerosol-cloud interactions and optical properties
	Zhang M.; Khaled A.; Amato P.; Delort A.-M.; Ervens B.
发表日期	2021
ISSN	1680-7316
起始页码	3699
结束页码	3724
卷号	21 期号:5
英文摘要	Primary biological aerosol particles (PBAPs), such as bacteria, viruses, fungi, and pollen, represent a small fraction of the total aerosol burden. Based on process model studies, we identify trends in the relative importance of PBAP properties, e.g., number concentration, diameter, hygroscopicity, surface tension, and contact angle, for their aerosol-cloud interactions and optical properties. While the number concentration of PBAPs likely does not affect total cloud condensation nuclei (CCN) concentrations globally, small changes in the hygroscopicity of submicron PBAPs might affect their CCN ability and thus their inclusion into clouds. Given that PBAPs are highly efficient atmospheric ice nuclei (IN) at span classCombining double low line inline-formula iT /i span classCombining double low line inline-formula span classCombining double low line inline-formula - 10 span classCombining double low line inline-formula gC , we suggest that small changes in their sizes or surface properties due to chemical, physical, or biological processing might translate into large impacts on ice initiation in clouds. Predicted differences in the direct interaction of PBAPs with radiation can be equally large between different species of the same PBAP type and among different PBAP types. Our study shows that not only variability of PBAP types but also their physical, chemical, and biological ageing processes might alter their CCN and IN activities to affect their aerosol-cloud interactions and optical properties. While these properties and processes likely affect radiative forcing only on small spatial and temporal scales, we highlight their potential importance for PBAP survival, dispersion, and transport in the atmosphere. /p. © 2021 Georg Thieme Verlag. All rights reserved.
语种	英语
scopus关键词	aerosol; cloud condensation nucleus; concentration (composition); optical property; radiative forcing
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/247071
作者单位	Université Clermont Auvergne, CNRS, Institut de Chimie de Clermont-Ferrand, Clermont-Ferrand, 63000, France
推荐引用方式 GB/T 7714	Zhang M.,Khaled A.,Amato P.,et al. Sensitivities to biological aerosol particle properties and ageing processes: Potential implications for aerosol-cloud interactions and optical properties[J],2021,21(5).
APA	Zhang M.,Khaled A.,Amato P.,Delort A.-M.,&Ervens B..(2021).Sensitivities to biological aerosol particle properties and ageing processes: Potential implications for aerosol-cloud interactions and optical properties.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(5).
MLA	Zhang M.,et al."Sensitivities to biological aerosol particle properties and ageing processes: Potential implications for aerosol-cloud interactions and optical properties".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.5(2021).