气候变化领域集成服务门户(CCPortal): The Influence of Chemical and Mineral Compositions on the Parameterization of Immersion Freezing by Volcanic Ash Particles

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DOI	10.1029/2020JD033356
	The Influence of Chemical and Mineral Compositions on the Parameterization of Immersion Freezing by Volcanic Ash Particles
	Umo N.S.; Ullrich R.; Maters E.C.; Steinke I.; Benker N.; Höhler K.; Wagner R.; Weidler P.G.; Hoshyaripour G.A.; Kiselev A.; Kueppers U.; Kandler K.; Dingwell D.B.; Leisner T.; Möhler O.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:17
英文摘要	Volcanic ash (VA) from explosive eruptions contributes to aerosol loadings in the atmosphere. Aside from the negative impact of VA on air quality and aviation, these particles can alter the optical and microphysical properties of clouds by triggering ice formation, thereby influencing precipitation and climate. Depending on the volcano and eruption style, VA displays a wide range of different physical, chemical, and mineralogical properties. Here, we present a unique data set on the ice nucleation activity of 15 VA samples obtained from different volcanoes worldwide. The ice nucleation activities of these samples were studied in the Aerosol Interaction and Dynamics in the Atmosphere (AIDA) cloud simulation chamber as well as with the Ice Nucleation Spectrometer of the Karlsruhe Institute of Technology (INSEKT). All VA particles nucleated ice in the immersion freezing mode from 263 to 238K with ice nucleation active site (INAS) densities ranging from ∼105 to 1011 m−2, respectively. The variabilities observed among the VA samples, at any given temperature, range over 3.5 orders of magnitude. The ice-nucleating abilities of VA samples correlate to varying degrees with their bulk pyroxene and plagioclase contents as a function of temperature. We combined our new data set with existing literature data to develop an improved ice nucleation parameterization for natural VA in the immersion freezing mode. This should be useful for modeling the impact of VA on clouds. © 2021. The Authors.
英文关键词	aerosol; chemical composition; cloud chamber; ice nucleation; mineralogy; mixed-phase clouds; parameterization; volcanic ash
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237022
作者单位	Institute of Meteorology and Climate Research - Atmospheric Aerosol Research, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany; School of Earth and Environment, Institute for Climate and Atmospheric Science, University of Leeds, Leeds, United Kingdom; Department of Chemistry, University of Cambridge, Cambridge, United Kingdom; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, WA, Richland, United States; Institute of Applied Geosciences, Technical University Darmstadt, Darmstadt, Germany; Institute of Functional Interfaces, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany; Department of Tropospheric Research, Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Eggenstein-Leopoldshafen, Germany; Department of Earth and Environmental Sciences, Ludwig-Maximilians-Universität (LMU), Munich, Germany
推荐引用方式 GB/T 7714	Umo N.S.,Ullrich R.,Maters E.C.,et al. The Influence of Chemical and Mineral Compositions on the Parameterization of Immersion Freezing by Volcanic Ash Particles[J],2021,126(17).
APA	Umo N.S..,Ullrich R..,Maters E.C..,Steinke I..,Benker N..,...&Möhler O..(2021).The Influence of Chemical and Mineral Compositions on the Parameterization of Immersion Freezing by Volcanic Ash Particles.Journal of Geophysical Research: Atmospheres,126(17).
MLA	Umo N.S.,et al."The Influence of Chemical and Mineral Compositions on the Parameterization of Immersion Freezing by Volcanic Ash Particles".Journal of Geophysical Research: Atmospheres 126.17(2021).