Particle imaging auto-measurement system for microphysical characteristics of raindrops in natural rain
文献类型：期刊论文
| 作者 | Zhan, Xiaoyun1,2; Zhao, Jun1,2; Feng, Qian2; Shui, Junfeng1,2; Guo, Minghang1,2 |
| 刊名 | ATMOSPHERIC RESEARCH
 |
| 出版日期 | 2020-09-15 |
| 卷号 | 242页码:9 |
| 关键词 | Raindrop Disdrometer Diameter Fall velocity Soil erosion |
| ISSN号 | 0169-8095 |
| DOI | 10.1016/j.atmosres.2020.104963 |
| 通讯作者 | Shui, Junfeng(jfshui@ms.iswc.ac.cn) ; Guo, Minghang(mhguo@ms.iswc.ac.cn) |
| 英文摘要 | In order to explore microphysical properties of raindrops, light field and imaging system were designed based on the particle imaging measurement technology. Meanwhile, the software for image identification, extraction and calculation were investigated, and then a raindrop measurement system combined with a charge coupled device sensor was developed. The repeatability and accuracy of steel ball estimation were checked in diameter and fall velocity and yielded low standard deviations and small relative errors. The results demonstrate that the system provides a reliable detection of raindrop size and fall velocity. Additionally, the designed system was operated for in situ measurement of natural rain. Raindrop diameter and fall velocity were, on average, 1.02 mm and 3.45 m s(-1), respectively, and small-sized particles were the predominant contributor to the natural rainfall. Notably, raindrop fall velocities were slightly higher than the corresponding terminal velocities calculated by classical models under the standard sea-level conditions. In order to identify completely the features and variations of raindrops, it is essential to implement long-term measurements and take into account the driving factors such as air motions, raindrop breakup or coalescence. This work will be pursued soon in coming future. |
| WOS关键词 | SIZE DISTRIBUTION ; POLARIMETRIC RADAR ; VIDEO DISDROMETER ; DISTRIBUTIONS ; SEDIMENT ; PARAMETERS ; COLLISION ; BREAKUP ; SOIL |
| 资助项目 | National Key R&D Program of China[2017YFA0604803] ; Strategic Priority Research Program of the Chinese Academy of Sciences (Pan-Third Pole Environment Study for a Green Silk Road)[XDA20040202] ; Innovation Project of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021403-C3] ; 13th Five-year Informatization Plan of Chinese Academy of Sciences[XXH13505-07] |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000535422200004 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Key R&D Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences (Pan-Third Pole Environment Study for a Green Silk Road) ; Innovation Project of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau ; 13th Five-year Informatization Plan of Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/159568]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Shui, Junfeng; Guo, Minghang |
| 作者单位 | 1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhan, Xiaoyun,Zhao, Jun,Feng, Qian,et al. Particle imaging auto-measurement system for microphysical characteristics of raindrops in natural rain[J]. ATMOSPHERIC RESEARCH,2020,242:9. |
| APA | Zhan, Xiaoyun,Zhao, Jun,Feng, Qian,Shui, Junfeng,&Guo, Minghang.(2020).Particle imaging auto-measurement system for microphysical characteristics of raindrops in natural rain.ATMOSPHERIC RESEARCH,242,9. |
| MLA | Zhan, Xiaoyun,et al."Particle imaging auto-measurement system for microphysical characteristics of raindrops in natural rain".ATMOSPHERIC RESEARCH 242(2020):9. |
入库方式： OAI收割
来源：地理科学与资源研究所
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