DOI: 10.1002/2014GL061317
论文题名: The immersion mode ice nucleation behavior of mineral dusts: A comparison of different pure and surface modified dusts
作者: Augustin-Bauditz S. ; Wex H. ; Kanter S. ; Ebert M. ; Niedermeier D. ; Stolz F. ; Prager A. ; Stratmann F.
刊名: Geophysical Research Letters
ISSN: 0094-9701
EISSN: 1944-9432
出版年: 2014
卷: 41, 期: 20 起始页码: 7375
结束页码: 7382
语种: 英语
英文关键词: clay minerals
; feldspar
; ice nuclei
; immersion freezing
; mineral dust
; sulfuric acid coating
Scopus关键词: Clay minerals
; Coatings
; Experiments
; Feldspar
; Freezing
; Ice
; Kaolinite
; Minerals
; Nucleation
; Sulfuric acid
; Aerosol-cloud interaction
; Arizona test dust
; Crustal materials
; Ice nuclei
; Immersion freezing
; Mineral dust
; Mineral dust particles
; Surface-modified
; Dust
; clay mineral
; data set
; dust
; experimental study
; freezing
; ice
; nucleation
; sulfuric acid
; Arizona
; United States
英文摘要: In this study we present results from immersion freezing experiments with size-segregated mineral dust particles. Besides two already existing data sets for Arizona Test Dust (ATD), and Fluka kaolinite, we show two new data sets for illite-NX, which consists mainly of illite, a clay mineral, and feldspar, a common crustal material. The experiments were carried out with the Leipzig Aerosol Cloud Interaction Simulator. After comparing the different dust samples, it became obvious that the freezing ability was positively correlated with the K-feldspar content. Furthermore, a comparison of the composition of the ATD, illite-NX, and feldspar samples suggests that within the K-feldspars, microcline is more ice nucleation active than orthoclase. A coating with sulfuric acid leads to a decrease in the ice nucleation ability of all mineral dusts, with the effect being more pronounced for the feldspar sample. Key Points The freezing ability of mineral dusts correlated with the K-feldspar contentAmong feldspars, microcline shows a better ice nucleation ability than orthoclaseAfter coating, all investigated dusts feature a similar ice nucleation ability ©2014. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911393945&doi=10.1002%2f2014GL061317&partnerID=40&md5=c06c8b354c7dba7764884e98a6b9127c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6965
Appears in Collections: 气候减缓与适应
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作者单位: Leibniz Institute of Tropospheric Research, Leipzig, Germany
Recommended Citation:
Augustin-Bauditz S.,Wex H.,Kanter S.,et al. The immersion mode ice nucleation behavior of mineral dusts: A comparison of different pure and surface modified dusts[J]. Geophysical Research Letters,2014-01-01,41(20).