Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2018.05.021 |
Precipitation enhancement by cloud seeding using the shell structured TiO2/NaCl aerosol as revealed by new model for cloud seeding experiments | |
Lompar, Milos1; Curic, Mladjen2; Romanic, Djordje3; Zou, Linda4; Liang, Haoran4 | |
2018-11-01 | |
发表期刊 | ATMOSPHERIC RESEARCH
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ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2018 |
卷号 | 212页码:202-212 |
文章类型 | Article |
语种 | 英语 |
国家 | Serbia; Canada; U Arab Emirates |
英文摘要 | Severe droughts are increasingly frequent around the world, in particular in the desert area. There is a shortage of water that can be partly avoided by the implementation of precipitation enhancement projects. The concept implies cloud seeding with appropriate artificially produced aerosols. The main lack of that methodology is a scientific basis of the evaluation of seeding effects. The twofold contributions of this paper are the following: (1) introducing a new one-dimensional (1D) numerical model for cloud seeding experiments (1D MCSE) and (2) testing the performances of a novel aerosol at enhancing surface precipitation using the 1D MCSE. The novel aerosol is core/shell sodium chloride (NaCl/titanium dioxide (TiO2) nanostructure, also known as the shell structured TiO2/NaCl. The introduced numerical model is a coupled dynamics and microphysics scheme. Two principally different approaches of numerically simulating the performances of the shell structured TiO2/NaCl are utilized in this paper. In the first approach the cloud droplet nucleation on the novel aerosols is evaluated via the lookup tables which were constructed by using the parcel model. The activation characteristics were modelled as function of ambient temperature, vertical velocity, relative humidity, the number of aerosols, and their chemical characteristics expressed by kappa parameter. In the second approach, the activation features of shell structured TiO2/NaCl are explicitly resolved in the MCSE 1D model using the diffusion equation constructed from the laboratory experiments in cloud chambers with this novel aerosol. The performances of the novel aerosols were compared against the pure NaCl that has traditionally been used for precipitation enhancement, as well as against the base case without any seeding (i.e., cloud droplet nucleation only on the natural aerosols). In all analyzed cases, the novel aerosol shows profoundly better performances as precipitation enhancer than the pure NaCl. The superiority of this novel seeding material to pure NaCl is particularly noticeable in the unsaturated environments with the relative humidity below 75%. Analysis of spatiotemporal windows for these two artificial aerosols shows that the resulting precipitation enhancement from the shell structured TiO2/NaCl is > 15% larger than using the pure NaCl and about 30% larger than in natural case. In addition, this paper demonstrates a large flexibility of the 1D MCSE to produce a variety of different outputs which are of great importance in the cloud seeding experiments. |
英文关键词 | Cloud modelling Weather modification Seeding aerosols Precipitation enhancement |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000439403300017 |
WOS关键词 | WEATHER-MODIFICATION ACTIVITIES ; HETEROGENEOUS NUCLEATION ; EXPLICIT FORECASTS ; HYGROSCOPIC GROWTH ; DROPLET ACTIVATION ; SIZE DISTRIBUTION ; NATURAL AEROSOLS ; KOHLER THEORY ; PART I ; PARTICLES |
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/38552 |
专题 | 地球科学 |
作者单位 | 1.Republ Hydromereorol Serv Serbia, Dept Meteorol, Belgrade, Serbia; 2.Univ Belgrade, Inst Meteorol, Belgrade, Serbia; 3.Western Univ, Wind Engn Energy & Environm WindEEE Res Inst, London, ON, Canada; 4.Khalifa Univ Sci & Technol, Masdar Inst, Dept Civil Infrastruct & Environm Engn, Abu Dhabi, U Arab Emirates |
推荐引用方式 GB/T 7714 | Lompar, Milos,Curic, Mladjen,Romanic, Djordje,et al. Precipitation enhancement by cloud seeding using the shell structured TiO2/NaCl aerosol as revealed by new model for cloud seeding experiments[J]. ATMOSPHERIC RESEARCH,2018,212:202-212. |
APA | Lompar, Milos,Curic, Mladjen,Romanic, Djordje,Zou, Linda,&Liang, Haoran.(2018).Precipitation enhancement by cloud seeding using the shell structured TiO2/NaCl aerosol as revealed by new model for cloud seeding experiments.ATMOSPHERIC RESEARCH,212,202-212. |
MLA | Lompar, Milos,et al."Precipitation enhancement by cloud seeding using the shell structured TiO2/NaCl aerosol as revealed by new model for cloud seeding experiments".ATMOSPHERIC RESEARCH 212(2018):202-212. |
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