Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016JD026328 |
Reference data set of volcanic ash physicochemical and optical properties | |
Vogel, A.1,2; Diplas, S.3,4; Durant, A. J.2,5; Azar, A. S.3; Sunding, M. F.3; Rose, W. I.5; Sytchkova, A.6; Bonadonna, C.7; Kruger, K.2; Stohl, A.1 | |
2017-09-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:17 |
文章类型 | Article |
语种 | 英语 |
国家 | Norway; USA; Italy; Switzerland |
英文摘要 | Uncertainty in the physicochemical and optical properties of volcanic ash particles creates errors in the detection and modeling of volcanic ash clouds and in quantification of their potential impacts. In this study, we provide a data set that describes the physicochemical and optical properties of a representative selection of volcanic ash samples from nine different volcanic eruptions covering a wide range of silica contents (50-80 wt % SiO2). We measured and calculated parameters describing the physical (size distribution, complex shape, and dense-rock equivalent mass density), chemical (bulk and surface composition), and optical (complex refractive index from ultraviolet to near-infrared wavelengths) properties of the volcanic ash and classified the samples according to their SiO2 and total alkali contents into the common igneous rock types basalt to rhyolite. We found that the mass density ranges between rho = 2.49 and 2.98 g/cm(3) for rhyolitic to basaltic ash types and that the particle shape varies with changing particle size (d < 100 mu m). The complex refractive indices in the wavelength range between lambda = 300 nm and 1500 nm depend systematically on the composition of the samples. The real part values vary from n = 1.38 to 1.66 depending on ash type and wavelength and the imaginary part values from k = 0.00027 to 0.00268. We place our results into the context of existing data and thus provide a comprehensive data set that can be used for future and historic eruptions, when only basic information about the magma type producing the ash is known. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416387300032 |
WOS关键词 | MOUNT-ST-HELENS ; 2011 GRIMSVOTN ERUPTION ; REFRACTIVE-INDEX ; REDOUBT VOLCANO ; CRATER PEAK ; SHAPE ; PARTICLES ; DEPOSITION ; VOLUME ; CLOUDS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33310 |
专题 | 气候变化 |
作者单位 | 1.Norwegian Inst Air Res, Atmosphere & Climate Dept, Kjeller, Norway; 2.Univ Oslo, Dept Geosci, Meteorol & Oceanog Sect, Oslo, Norway; 3.SINTEF Mat & Chem, Oslo, Norway; 4.Univ Oslo, Dept Chem, Ctr Mat Sci & Nanotechnol, Oslo, Norway; 5.Michigan Technol Univ, Geol & Min Engn & Sci, Houghton, MI 49931 USA; 6.ENEA Casaccia CRE, Opt Components Grp, Energy Technol Dept, Rome, Italy; 7.Univ Geneva, Dept Earth Sci, Geneva, Switzerland |
推荐引用方式 GB/T 7714 | Vogel, A.,Diplas, S.,Durant, A. J.,et al. Reference data set of volcanic ash physicochemical and optical properties[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(17). |
APA | Vogel, A..,Diplas, S..,Durant, A. J..,Azar, A. S..,Sunding, M. F..,...&Stohl, A..(2017).Reference data set of volcanic ash physicochemical and optical properties.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(17). |
MLA | Vogel, A.,et al."Reference data set of volcanic ash physicochemical and optical properties".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.17(2017). |
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