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DOI | 10.1029/2017JD028205 |
Quantification of Observed Electrical Effect on the Raindrop Size Distribution in Tropical Clouds | |
Mudiar, Dipjyoti1,2; Pawar, S. D.1; Hazra, Anupam1; Konwar, Mahen1; Gopalakrishnan, V.1; Srivastava, M. K.2; Goswami, B. N.3 | |
2018-05-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:9页码:4527-4544 |
文章类型 | Article |
语种 | 英语 |
国家 | India |
英文摘要 | In the backdrop of extensive laboratory and theoretical evidence of broadening of the drop size distribution (DSD) of raindrops in the presence of electric field, quantification of the same in observed tropical clouds is lacking. Here this is quantified using the DSD measured by a microrain radar at 2,400-, 1,200-, and 600-m heights from the surface in six strongly electrified and six weakly electrified stratiform rain events together with the DSD of raindrops at the surface measured by a disdrometer for the same cases. The presence/absence of lightning is used to distinguish between strongly and weakly electrified events. The vertical profile of Median Volume Diameter below the melting layer and DSDs at all three heights for strongly electrified events and weakly electrified events are significantly different from each other, consistent with previous laboratory and numerical studies (Rayleigh, 1879; Davis, 1964; Moore et al., 1964, https://doi.org/10.1175/1520-0469(1964)021 < 0646:GORAMA > 2.0.CO;2). Our results indicate that the electric field and surface charge of raindrops can affect the collision-coalescence process and breakup characteristics of raindrops. Our study suggests that the parameterization of electrical processes in weather/climate models can possibly improve the simulation of tropical rainfall in numerical models as well as a proper representation of DSD will improve the estimation of tropical rainfall in airborne measurements. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434132400008 |
WOS关键词 | MESOSCALE CONVECTIVE SYSTEMS ; WATER DROPS ; WIND-TUNNEL ; STRATIFORM PRECIPITATION ; COLLISION EFFICIENCY ; LIGHTNING ACTIVITY ; RADAR OBSERVATIONS ; BRIGHT BAND ; FIELDS ; REGIONS |
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/32700 |
专题 | 气候变化 |
作者单位 | 1.Indian Inst Trop Meteorol, Pune, Maharashtra, India; 2.Banaras Hindu Univ, Dept Geophys, Varanasi, Uttar Pradesh, India; 3.Cotton Univ, Dept Phys, Gauhati, India |
推荐引用方式 GB/T 7714 | Mudiar, Dipjyoti,Pawar, S. D.,Hazra, Anupam,et al. Quantification of Observed Electrical Effect on the Raindrop Size Distribution in Tropical Clouds[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(9):4527-4544. |
APA | Mudiar, Dipjyoti.,Pawar, S. D..,Hazra, Anupam.,Konwar, Mahen.,Gopalakrishnan, V..,...&Goswami, B. N..(2018).Quantification of Observed Electrical Effect on the Raindrop Size Distribution in Tropical Clouds.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(9),4527-4544. |
MLA | Mudiar, Dipjyoti,et al."Quantification of Observed Electrical Effect on the Raindrop Size Distribution in Tropical Clouds".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.9(2018):4527-4544. |
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