气候变化领域集成服务门户(CCPortal): A global climatology of ice-nucleating particles under cirrus conditions derived from model simulations with MADE3 in EMAC

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DOI	10.5194/acp-22-15887-2022
	A global climatology of ice-nucleating particles under cirrus conditions derived from model simulations with MADE3 in EMAC
	Beer, Christof G.; Hendricks, Johannes; Righi, Mattia
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	15887
结束页码	15907
卷号	22 期号:24 页码:21
英文摘要	Atmospheric aerosols can act as ice-nucleating particles (INPs), thereby influencing the formation and the microphysical properties of cirrus clouds, resulting in distinct climate effects. In addition to mineral dust and soot particles, laboratory experiments suggest crystalline ammonium sulfate and glassy organic particles as effective INPs in the cirrus regime. However, the impact of these new particle types at the global scale is still highly uncertain. Here, we present and analyse a global climatology of INPs derived from model simulations performed with a global aerosol-climate model coupled to a two-moment cloud microphysical scheme and a parametrization for aerosol-induced ice formation in cirrus clouds. This global INP climatology comprises mineral dust and soot particles as well as crystalline ammonium sulfate and glassy organics, including a simplified formulation of the particle phase state for the latter. By coupling the different INP types to the microphysical cirrus cloud scheme, their ice nucleation potential under cirrus conditions is analysed, considering possible competition mechanisms between different INPs. The simulated INP concentrations in the range of about 1 to 100 L-1 agree well with in situ observations and other global model studies. We show that INP concentrations of glassy organics and crystalline ammonium sulfate are strongly related to the ambient conditions which often inhibit the glassy or crystalline phase respectively. Our model results suggest that glassy organic particles probably only have a minor influence, as INP concentrations are mostly low in the cirrus regime. On the other hand, crystalline ammonium sulfate often shows large INP concentrations, has the potential to influence ice nucleation in cirrus clouds, and should be taken into account in future model applications.
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:000900437200001
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/273412
作者单位	Helmholtz Association; German Aerospace Centre (DLR)
推荐引用方式 GB/T 7714	Beer, Christof G.,Hendricks, Johannes,Righi, Mattia. A global climatology of ice-nucleating particles under cirrus conditions derived from model simulations with MADE3 in EMAC[J],2022,22(24):21.
APA	Beer, Christof G.,Hendricks, Johannes,&Righi, Mattia.(2022).A global climatology of ice-nucleating particles under cirrus conditions derived from model simulations with MADE3 in EMAC.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(24),21.
MLA	Beer, Christof G.,et al."A global climatology of ice-nucleating particles under cirrus conditions derived from model simulations with MADE3 in EMAC".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.24(2022):21.