摘要：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).
