Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD030126 |
Parameterization of In-Cloud Aerosol Scavenging Due to Atmospheric Ionization: Part 4. Effects of Varying Altitude | |
Zhang, Liang1,3,4; Tinsley, Brian2; Zhou, Limin1,3 | |
2019-12-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:23页码:13105-13126 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | We have verified that the modified analytic solution (MAS) for aerosol scavenging designed in our previous work to parameterize in-cloud collision rate coefficients between aerosol particles and droplets can be extended to altitudes ranging from 0 to 20.6 km, and droplet radii up to 100 mu m. The MAS deals separately with the short-range effects and long-range effects involved in the collisions, with the short-range effects including image electric forces, the intercept effect, and the weight effect; and the long-range effects including Brownian diffusion, the Coulomb electric force, and phoretic forces. The effects of Brownian diffusion and Coulomb electric force increase as height increases, while the change of phoretic forces with altitude is complicated. The effects of image electric force and intercept change slightly with altitude, while the weight effect increases significantly at higher altitudes. When the short-range effects include the irregular shape of particles, the MAS also works well. The calculations of collision rate coefficients by our Monte Carlo trajectory model for varying droplet radius, droplet charges, particle radius, particle charges, particle density, relative humidity, pressure and temperature have now been completed, and we parameterize them by the simple MAS method which makes the results user friendly and easily applicable for cloud models. Based on our results, it is now possible to build cloud models to investigate the hypothesized link between the downward current flow in the global electric circuit current and cloud microphysical changes affecting cloud development. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000505626200042 |
WOS关键词 | ELECTRIC-FIELD ; LAYER CLOUDS ; DROPLETS ; PARTICLES ; CHARGES ; ICE ; ELECTRIFICATION ; COVER ; LINKS |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/225924 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.East China Normal Univ, Key Lab Geog Informat Sci, Shanghai, Peoples R China; 2.Univ Texas Dallas, Phys Dept, Richardson, TX 75083 USA; 3.State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China; 4.East China Normal Univ, Inst Ecochongming, Shanghai, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Liang,Tinsley, Brian,Zhou, Limin. Parameterization of In-Cloud Aerosol Scavenging Due to Atmospheric Ionization: Part 4. Effects of Varying Altitude[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(23):13105-13126. |
APA | Zhang, Liang,Tinsley, Brian,&Zhou, Limin.(2019).Parameterization of In-Cloud Aerosol Scavenging Due to Atmospheric Ionization: Part 4. Effects of Varying Altitude.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(23),13105-13126. |
MLA | Zhang, Liang,et al."Parameterization of In-Cloud Aerosol Scavenging Due to Atmospheric Ionization: Part 4. Effects of Varying Altitude".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.23(2019):13105-13126. |
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