The global influence of dust mineralogical composition on heterogeneous ice nucleation in mixed-phase clouds

By C. Hoose, Ulrike Lohmann, R. Erdin, I. Tegen. 2008

179 citations recorded by the source corpus.

Mineral dust is the dominant natural ice nucleating aerosol. Its ice nucleation efficiency depends on the mineralogical composition. We show the first sensitivity studies with a global climate model and a three-dimensional dust mineralogy. Results show that, depending on the dust mineralogical composition, coating with soluble material from anthropogenic sources can lead to quasi-deactivation of natural dust ice nuclei. This effect counteracts the increased cloud glaciation by anthropogenic black carbon particles. The resulting aerosol indirect effect through the glaciation of mixed-phase clouds by black carbon particles is small (+0.1 W m−2 in the shortwave top-of-the-atmosphere radiation in the northern hemisphere).

Subfields: Atmospheric Science, Earth-Surface Processes, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/09bf50710702a89a213ac899cdb0e04d73a88ce9

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Citations in the corpus

In situ detection of biological particles in cloud ice-crystals (2009, background): “These dust mixing state results demonstrate that it cannot always be assumed that long-range transported dust is always aged, or reacted; this has implications for the treatment of the anthropogenic indirect aerosol effect within mixed-phase cloud model”
Experimental study on the ice nucleation ability of size-selected kaolinite particles in the immersion mode (2010, background): “Appropriate theoretical descriptions resolving the dependence of ice nucleation on particle size can help to improve the parameterization of heterogeneous ice nucleation in modeling studies, since, in general, no size dependence of heterogeneous ice nucleation is accounted for in general circulation”
Deactivation of ice nuclei due to atmospherically relevant surface coatings (2009, background): “The effects of deactivation of dust by coatings is just beginning to be explored with global models (Hoose et al 2008) and, to our knowledge, is not included in current estimates of indirect aerosol forcing.”
On the effect of dust particles on global cloud condensation nuclei and cloud droplet number (2011, background): “…the dust impacts on cloud droplet number assume that dust acts as CCN only when soluble material exists in the particles (and controls its hygroscopicity) [e.g., Hoose et al., 2008b; Kelly et al., 2007; Lee et al., 2009; Manktelow et al., 2010; Pringle et al., 2010a, 2010b; Solomos et al., 2011].”
A Classical-Theory-Based Parameterization of Heterogeneous Ice Nucleation by Mineral Dust, Soot, and Biological Particles in a Global Climate Model (2010, methodology): “Parameterizations that are used in large-scale models are mostly empirical (Lohmann 2002; Lohmann and Diehl 2006; Hoose et al. 2008; Morrison and Gettelman 2008; Phillips et al. 2008; Storelvmo et al. 2008a).”
Toward a Minimal Representation of Aerosols in Climate Models: Comparative Decomposition of Aerosol Direct, Semidirect, and Indirect Radiative Forcing (2012, background): “Aerosol effects on ice crystal nucleation might also be important (Lohmann and Feichter 2005; Hoose et al. 2008; Liu et al. 2009).”
Different contact angle distributions for heterogeneous ice nucleation in the Community Atmospheric Model version 5 (2014, background): “In 60 order to reduce the complexity encountered in natural mineral dusts, many laboratory 61 studies, on the one hand, have often used commercially available minerals, in 62 particular kaolinite, illite and montmorillonite (Hoose et al., 2008b; Hoose and 63 Möhler, 2012).”