Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1038/nature12278 |
The importance of feldspar for ice nucleation by mineral dust in mixed-phase clouds | |
Atkinson, James D.; Murray, Benjamin J.; Woodhouse, Matthew T.; Whale, Thomas F.; Baustian, Kelly J.; Carslaw, Kenneth S.; Dobbie, Steven; O’sullivan, Daniel; Malkin, Tamsin L. | |
通讯作者 | Murray, Benjamin J. |
来源期刊 | NATURE
![]() |
ISSN | 0028-0836 |
出版年 | 2013 |
卷号 | 498期号:7454页码:355-358 |
英文摘要 | The amount of ice present in mixed-phase clouds, which contain both supercooled liquid water droplets and ice particles, affects cloud extent, lifetime, particle size and radiative properties(1,2). The freezing of cloud droplets can be catalysed by the presence of aerosol particles known as ice nuclei(2). One of the most important ice nuclei is thought to be mineral dust aerosol from arid regions(2,3). It is generally assumed that clay minerals, which contribute approximately two-thirds of the dust mass, dominate ice nucleation by mineral dust, and many experimental studies have therefore focused on these materials(1,2,4-6). Here we use an established droplet-freezing technique(4,7) to show that feldspar minerals dominate ice nucleation by mineral dusts under mixed-phase cloud conditions, despite feldspar being a minor component of dust emitted from arid regions. We also find that clay minerals are relatively unimportant ice nuclei. Our results from a global aerosol model study suggest that feldspar ice nuclei are globally distributed and that feldspar particles may account for a large proportion of the ice nuclei in Earth’s atmosphere that contribute to freezing at temperatures below about -15 degrees C. |
类型 | Article |
语种 | 英语 |
国家 | England |
收录类别 | SCI-E |
WOS记录号 | WOS:000320592900038 |
WOS关键词 | BIOLOGICAL PARTICLES ; IMMERSION MODE ; AEROSOLS ; CLIMATE ; NUCLEI |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/178989 |
作者单位 | Univ Leeds, Sch Earth & Environm, Inst Climate & Atmospher Sci, Leeds LS2 9JT, W Yorkshire, England |
推荐引用方式 GB/T 7714 | Atkinson, James D.,Murray, Benjamin J.,Woodhouse, Matthew T.,et al. The importance of feldspar for ice nucleation by mineral dust in mixed-phase clouds[J],2013,498(7454):355-358. |
APA | Atkinson, James D..,Murray, Benjamin J..,Woodhouse, Matthew T..,Whale, Thomas F..,Baustian, Kelly J..,...&Malkin, Tamsin L..(2013).The importance of feldspar for ice nucleation by mineral dust in mixed-phase clouds.NATURE,498(7454),355-358. |
MLA | Atkinson, James D.,et al."The importance of feldspar for ice nucleation by mineral dust in mixed-phase clouds".NATURE 498.7454(2013):355-358. |
条目包含的文件 | ||||||
文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
The importance of fe(1385KB) | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。