Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-2947-2019 |
Fine dust emissions from active sands at coastal Oceano Dunes, California | |
Huang, Yue1; Kok, Jasper F.1; Martin, Raleigh L.1; Swet, Nitzan2; Katra, Itzhak2; Gill, Thomas E.3; Reynolds, Richard L.4; Freire, Livia S.5 | |
2019-03-07 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:5页码:2947-2964 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Israel; Brazil |
英文摘要 | Sand dunes and other active sands generally have a low content of fine grains and, therefore, are not considered to be major dust sources in current climate models. However, recent remote sensing studies have indicated that a surprisingly large fraction of dust storms are generated from regions covered by sand dunes, leading these studies to propose that sand dunes might be globally relevant sources of dust. To help understand dust emissions from sand dunes and other active sands, we present in situ field measurements of dust emission under natural saltation from a coastal sand sheet at Oceano Dunes in California. We find that saltation drives dust emissions from this setting that are on the low end of the range in emissions produced by non-sandy soils for similar wind speed. Laboratory analyses of sand samples suggest that these emissions are produced by aeolian abrasion of feldspars and removal of clay-mineral coatings on sand grain surfaces. We further find that this emitted dust is substantially finer than dust emitted from non-sandy soils, which could enhance its downwind impacts on human health, the hydrological cycle, and climate. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460622900002 |
WOS关键词 | ROAD VEHICULAR ACTIVITY ; SIZED QUARTZ SILT ; MINERAL-DUST ; WIND EROSION ; AEROSOL PRODUCTION ; OPTICAL-PROPERTIES ; AEOLIAN SALTATION ; REFRACTIVE-INDEX ; ICE NUCLEATION ; PARTICLE-SIZE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/30449 |
专题 | 地球科学 |
作者单位 | 1.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA; 2.Ben Gurion Univ Negev, Dept Geog & Environm Dev, IL-84105 Beer Sheva, Israel; 3.Univ Texas El Paso, Dept Geol Sci, El Paso, TX 79968 USA; 4.Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA; 5.Univ Fed Parana, Grad Program Environm Engn, BR-80060 Curitiba, PR, Brazil |
推荐引用方式 GB/T 7714 | Huang, Yue,Kok, Jasper F.,Martin, Raleigh L.,et al. Fine dust emissions from active sands at coastal Oceano Dunes, California[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(5):2947-2964. |
APA | Huang, Yue.,Kok, Jasper F..,Martin, Raleigh L..,Swet, Nitzan.,Katra, Itzhak.,...&Freire, Livia S..(2019).Fine dust emissions from active sands at coastal Oceano Dunes, California.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(5),2947-2964. |
MLA | Huang, Yue,et al."Fine dust emissions from active sands at coastal Oceano Dunes, California".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.5(2019):2947-2964. |
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