Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073128 |
Evaluating stratiform cloud base charge remotely | |
Harrison, R. Giles1; Nicoll, Keri A.1,2; Aplin, Karen L.3 | |
2017-06-28 | |
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:12 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | Stratiform clouds acquire charge at their upper and lower horizontal boundaries due to vertical current flow in the global electric circuit. Cloud charge is expected to influence microphysical processes, but understanding is restricted by the infrequent in situ measurements available. For stratiform cloud bases below 1 km in altitude, the cloud base charge modifies the surface electric field beneath, allowing a new method of remote determination. Combining continuous cloud height data during 2015-2016 from a laser ceilometer with electric field mill data, cloud base charge is derived using a horizontal charged disk model. The median daily cloud base charge density found was -0.86 nC m(-2) from 43 days' data. This is consistent with a uniformly charged region similar to 40 m thick at the cloud base, now confirming that negative cloud base charge is a common feature of terrestrial layer clouds. This technique can also be applied to planetary atmospheres and volcanic plumes. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405854200061 |
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/27011 |
专题 | 气候变化 |
作者单位 | 1.Univ Reading, Dept Meteorol, Reading, Berks, England; 2.Univ Bath, Dept Elect & Elect Engn, Bath, Avon, England; 3.Univ Oxford, Dept Phys, Oxford, England |
推荐引用方式 GB/T 7714 | Harrison, R. Giles,Nicoll, Keri A.,Aplin, Karen L.. Evaluating stratiform cloud base charge remotely[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(12). |
APA | Harrison, R. Giles,Nicoll, Keri A.,&Aplin, Karen L..(2017).Evaluating stratiform cloud base charge remotely.GEOPHYSICAL RESEARCH LETTERS,44(12). |
MLA | Harrison, R. Giles,et al."Evaluating stratiform cloud base charge remotely".GEOPHYSICAL RESEARCH LETTERS 44.12(2017). |
条目包含的文件 | 条目无相关文件。 |
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