Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL074740 |
Distinguishing Remobilized Ash From Erupted Volcanic Plumes Using Space-Borne Multiangle Imaging | |
Flower, Verity J. B.1,2; Kahn, Ralph A.1 | |
2017-10-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:20 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Volcanic systems are composed of a complex combination of ongoing eruptive activity and secondary hazards, such as remobilized ash plumes. Similarities in the visual characteristics of remobilized and erupted plumes, as imaged by satellite-based remote sensing, complicate the accurate classification of these events. The stereo imaging capabilities of the Multiangle Imaging Spectroradiometer (MISR) were used to determine the altitude and distribution of suspended particles. Remobilized ash shows distinct dispersion, with particles distributed within similar to 1.5 km of the surface. Particle transport is consistently constrained by local topography, limiting dispersion pathways downwind. The MISR Research Aerosol retrieval algorithm was used to assess plume particle microphysical properties. Remobilized ash plumes displayed a dominance of large particles with consistent absorption and angularity properties, distinct from emitted plumes. The combination of vertical distribution, topographic control, and particle microphysical properties makes it possible to distinguish remobilized ash flows from eruptive plumes, globally. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416761600079 |
WOS关键词 | REMOTE-SENSING OBSERVATIONS ; MINERAL DUST TYPES ; DARK WATER ; MISR ; RETRIEVALS ; SENSITIVITY ; IDENTIFY ; ABILITY ; OCEAN |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/28070 |
专题 | 气候变化 |
作者单位 | 1.NASA, Goddard Space Flight Ctr, Climate & Radiat Lab, Div Earth Sci, Greenbelt, MD 20771 USA; 2.Univ Space Res Assoc, Columbia, MD 21046 USA |
推荐引用方式 GB/T 7714 | Flower, Verity J. B.,Kahn, Ralph A.. Distinguishing Remobilized Ash From Erupted Volcanic Plumes Using Space-Borne Multiangle Imaging[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(20). |
APA | Flower, Verity J. B.,&Kahn, Ralph A..(2017).Distinguishing Remobilized Ash From Erupted Volcanic Plumes Using Space-Borne Multiangle Imaging.GEOPHYSICAL RESEARCH LETTERS,44(20). |
MLA | Flower, Verity J. B.,et al."Distinguishing Remobilized Ash From Erupted Volcanic Plumes Using Space-Borne Multiangle Imaging".GEOPHYSICAL RESEARCH LETTERS 44.20(2017). |
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