Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.epsl.2018.04.023 |
Electric properties of dust devils | |
Franzese, Gabriele1,2; Esposito, Francesca1; Lorenz, Ralph3; Silvestro, Simone1; Popa, Ciprian Ionut1; Molinaro, Roberto1; Cozzolino, Fabio1; Molfese, Cesare1; Marty, Laurent1; Deniskina, Natalia1 | |
通讯作者 | Franzese, Gabriele |
来源期刊 | EARTH AND PLANETARY SCIENCE LETTERS |
ISSN | 0012-821X |
EISSN | 1385-013X |
出版年 | 2018 |
卷号 | 493页码:71-81 |
英文摘要 | Dust devils are one of the most effective phenomena able to inject dust grains into the atmosphere. On Mars, they play an important role to maintain the haze and can significantly affect the global dust loading, especially outside the dust storm season. Despite dust devils having been studied for a century and a half, many open questions regarding their physics still exist. In particular, the nature of the dust lifting mechanisms inside the vortices, the development of the induced electric field and the exact contribution to the global atmospheric dust budget are still debated topics. In this paper, we analyze the dust devil activity observed in the Moroccan Sahara desert during a 2014 field campaign. We have acquired the most comprehensive field data set presently available for the dust devils: including meteorological, atmospheric electric field and lifted dust concentration measurements. We focus our attention on the electric field induced by vortices, using this as the principal detection parameter. We present, for the first time, the statistical distribution of dust devil electric field and its relationships with the pressure drop, the horizontal and vertical vortex velocity and the total dust mass lifted. We also compare the pressure drop distribution of our sample with the ones observed on the martian surface showing the similarity of the dust devils samples and the usefulness of this study for the next martian surface missions. (C) 2018 Published by Elsevier B.V. |
英文关键词 | dust devils dust lifting process atmospheric electricity Earth Mars meteorology |
类型 | Article |
语种 | 英语 |
国家 | Italy ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000433643200007 |
WOS关键词 | SIZE DISTRIBUTION ; FIELD ; VORTICES ; ELECTRIFICATION ; DIRECTIONS ; DISCHARGE ; MOTION |
WOS类目 | Geochemistry & Geophysics |
WOS研究方向 | Geochemistry & Geophysics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/208603 |
作者单位 | 1.Ist Nazl Astrofis, Osservatorio Astron Capodimonte, Naples, Italy; 2.Univ Naples Federico II, Dept Phys E Pancini, Naples, Italy; 3.Johns Hopkins Univ, Appl Phys Lab, 11100 Johns Hopkins Rd, Laurel, MD 20723 USA |
推荐引用方式 GB/T 7714 | Franzese, Gabriele,Esposito, Francesca,Lorenz, Ralph,et al. Electric properties of dust devils[J],2018,493:71-81. |
APA | Franzese, Gabriele.,Esposito, Francesca.,Lorenz, Ralph.,Silvestro, Simone.,Popa, Ciprian Ionut.,...&Deniskina, Natalia.(2018).Electric properties of dust devils.EARTH AND PLANETARY SCIENCE LETTERS,493,71-81. |
MLA | Franzese, Gabriele,et al."Electric properties of dust devils".EARTH AND PLANETARY SCIENCE LETTERS 493(2018):71-81. |
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