气候变化领域集成服务门户(CCPortal): The temperature dependence of ice-nucleating particle concentrations affects the radiative properties of tropical convective cloud systems

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DOI	10.5194/acp-21-5439-2021
	The temperature dependence of ice-nucleating particle concentrations affects the radiative properties of tropical convective cloud systems
	E. Hawker R.; K. Miltenberger A.; M. Wilkinson J.; A. Hill A.; J. Shipway B.; Cui Z.; J. Cotton R.; S. Carslaw K.; R. Field P.; J. Murray B.
发表日期	2021
ISSN	1680-7316
起始页码	5439
结束页码	5461
卷号	21 期号:7
英文摘要	Convective cloud systems in the maritime tropics play a critical role in global climate, but accurately representing aerosol interactions within these clouds persists as a major challenge for weather and climate modelling. We quantify the effect of ice-nucleating particles (INPs) on the radiative properties of a complex tropical Atlantic deep convective cloud field using a regional model with an advanced double-moment microphysics scheme. Our results show that the domain-mean daylight outgoing radiation varies by up to 18 W m-2 depending on the chosen INP parameterisation. The key distinction between different INP parameterisations is the temperature dependence of ice formation, which alters the vertical distribution of cloud microphysical processes. The controlling effect of the INP temperature dependence is substantial even in the presence of Hallett-Mossop secondary ice production, and the effects of secondary ice formation depend strongly on the chosen INP parameterisation. Our results have implications for climate model simulations of tropical clouds and radiation, which currently do not consider a link between INP particle type and ice water content. The results also provide a challenge to the INP measurement community, as we demonstrate that INP concentration measurements are required over the full mixed-phase temperature regime, which covers around 10 orders of magnitude. © Author(s) 2021.
语种	英语
scopus关键词	air temperature; cloud microphysics; concentration (composition); convective cloud; convective system; nucleation; particulate matter; quantitative analysis; tropical meteorology; Atlantic Ocean; Atlantic Ocean (Tropical)
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/246991
作者单位	Institute for Climate and Atmospheric Science, University of Leeds, Leeds, LS2 9JT, United Kingdom; Met Office, Exeter, EX1 3PB, United Kingdom; Institute for Atmospheric Physics, Johannes Gutenberg University Mainz, Mainz, 55128, Germany
推荐引用方式 GB/T 7714	E. Hawker R.,K. Miltenberger A.,M. Wilkinson J.,et al. The temperature dependence of ice-nucleating particle concentrations affects the radiative properties of tropical convective cloud systems[J],2021,21(7).
APA	E. Hawker R..,K. Miltenberger A..,M. Wilkinson J..,A. Hill A..,J. Shipway B..,...&J. Murray B..(2021).The temperature dependence of ice-nucleating particle concentrations affects the radiative properties of tropical convective cloud systems.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(7).
MLA	E. Hawker R.,et al."The temperature dependence of ice-nucleating particle concentrations affects the radiative properties of tropical convective cloud systems".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.7(2021).