Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-5111-2019 |
Classification of Arctic multilayer clouds using radiosonde and radar data in Svalbard | |
Vassel, Maiken1; Ickes, Luisa2; Maturilli, Marion3; Hoose, Corinna1 | |
2019-04-16 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
![]() |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:7页码:5111-5126 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Sweden |
英文摘要 | Multilayer clouds (MLCs) occur more often in the Arctic than globally. In this study we present the results of a detection algorithm applied to radiosonde and radar data from an 1-year time period in Ny-Alesund, Svalbard. Multilayer cloud occurrence is found on 29% of the investigated days. These multilayer cloud cases are further analysed regarding the possibility of ice crystal seeding, meaning that an ice crystal can survive sublimation in a subsaturated layer between two cloud layers when falling through this layer. For this we analyse profiles of relative humidity with respect to ice to identify super-and subsaturated air layers. Then the sublimation of an ice crystal of an assumed initial size of r = 400 mu m on its way through the subsaturated layer is calculated. If the ice crystal still exists when reaching a lower supersaturated layer, ice crystal seeding can potentially take place. Seeding cases are found often, in 23% of the investigated days (100% includes all days, as well as non-cloudy days). The identification of seeding cases is limited by the radar signal inside the subsaturated layer. Clearly separated multilayer clouds, defined by a clear interstice in the radar image, do not interact through seeding 29% of the investigated days). There are various deviations between the relative humidity profiles and the radar images, e.g. due to the lack of ice-nucleating particles (INPs) and cloud condensation nuclei (CCN). Additionally, horizontal wind drift of the radiosonde and time restriction when comparing radiosonde and radar data cause further deviations. In order to account for some of these deviations, an evaluation by manual visual inspection is done for the non-seeding cases. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000464677200002 |
WOS关键词 | MIXED-PHASE CLOUDS ; CIRRUS CLOUDS ; HUMIDITY ; SIMULATIONS ; EVOLUTION ; SYSTEM |
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/182345 |
专题 | 地球科学 |
作者单位 | 1.Karlsruhe Inst Technol, Inst Meteorol & Climate Res, Karlsruhe, Germany; 2.Stockholm Univ, Dept Meteorol, Stockholm, Sweden; 3.Alfred Wegener Inst Polar & Marine Res, Potsdam, Germany |
推荐引用方式 GB/T 7714 | Vassel, Maiken,Ickes, Luisa,Maturilli, Marion,et al. Classification of Arctic multilayer clouds using radiosonde and radar data in Svalbard[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(7):5111-5126. |
APA | Vassel, Maiken,Ickes, Luisa,Maturilli, Marion,&Hoose, Corinna.(2019).Classification of Arctic multilayer clouds using radiosonde and radar data in Svalbard.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(7),5111-5126. |
MLA | Vassel, Maiken,et al."Classification of Arctic multilayer clouds using radiosonde and radar data in Svalbard".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.7(2019):5111-5126. |
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