Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-13363-2018 |
Ice nucleation abilities of soot particles determined with the Horizontal Ice Nucleation Chamber | |
Mahrt, Fabian1; Marcolli, Claudia1; David, Robert O.1; Gronquist, Philippe3,4; Meier, Eszter J. Barthazy2; Lohmann, Ulrike1; Kanji, Zamin A.1 | |
2018-09-20 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:18页码:13363-13392 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland |
英文摘要 | Ice nucleation by different types of soot particles is systematically investigated over the temperature range from 218 to 253 K relevant for both mixed-phase (MPCs) and cirrus clouds. Soot types were selected to represent a range of physicochemical properties associated with combustion particles. Their ice nucleation ability was determined as a function of particle size using relative humidity (RH) scans in the Horizontal Ice Nucleation Chamber (HINC). We complement our ice nucleation results by a suite of particle characterization measurements, including determination of particle surface area, fractal dimension, temperature-dependent mass loss (ML), water vapor sorption and inferred porosity measurements. Independent of particle size, all soot types reveal absence of ice nucleation below and at water saturation in the MPC regime (T > 235 K). In the cirrus regime (T <= 235 K), soot types show different freezing behavior depending on particle size and soot type, but the freezing is closely linked to the soot particle properties. Specifically, our results suggest that if soot aggregates contain mesopores (pore diameters of 2-50 nm) and have sufficiently low water-soot contact angles, they show ice nucleation activity and can contribute to ice formation in the cirrus regime at RH well below homogeneous freezing of solution droplets. We attribute the observed ice nucleation to a pore condensation and freezing (PCF) mechanism. Nevertheless, soot particles without cavities of the right size and/or too-high contact angles nucleate ice only at or well above the RH required for homogeneous freezing conditions of solution droplets. Thus, our results imply that soot particles able to nucleate ice via PCF could impact the microphysical properties of ice clouds. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000445092500001 |
WOS关键词 | BLACK CARBON PARTICLES ; FLOW DIFFUSION CHAMBER ; MIXED-PHASE CLOUDS ; MINI-CAST SOOT ; PARTICULATE MATTER ; THERMOGRAVIMETRIC ANALYSIS ; ATMOSPHERIC PARTICLES ; DEPOSITION NUCLEATION ; CONDITIONS RELEVANT ; SIZE DISTRIBUTIONS |
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/19501 |
专题 | 地球科学 |
作者单位 | 1.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Dept Environm Syst Sci, CH-8092 Zurich, Switzerland; 2.Swiss Fed Inst Technol, Sci Ctr Opt & Electron Microscopy, CH-8093 Zurich, Switzerland; 3.Swiss Fed Inst Technol, Inst Bldg Mat, Dept Civil Environm & Geomat Engn, CH-8093 Zurich, Switzerland; 4.Empa, Dept Funct Mat, Appl Wood Mat, CH-8600 Dubendorf, Switzerland |
推荐引用方式 GB/T 7714 | Mahrt, Fabian,Marcolli, Claudia,David, Robert O.,et al. Ice nucleation abilities of soot particles determined with the Horizontal Ice Nucleation Chamber[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(18):13363-13392. |
APA | Mahrt, Fabian.,Marcolli, Claudia.,David, Robert O..,Gronquist, Philippe.,Meier, Eszter J. Barthazy.,...&Kanji, Zamin A..(2018).Ice nucleation abilities of soot particles determined with the Horizontal Ice Nucleation Chamber.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(18),13363-13392. |
MLA | Mahrt, Fabian,et al."Ice nucleation abilities of soot particles determined with the Horizontal Ice Nucleation Chamber".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.18(2018):13363-13392. |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论