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DOI | 10.1016/j.atmosres.2020.105378 |
Lightning activity over South/Southeast Asia: Modulation by thermodynamics of lower atmosphere | |
Chandra S.; Siingh D.; Jeni Victor N.; Kamra A.K. | |
发表日期 | 2021 |
ISSN | 0169-8095 |
卷号 | 250 |
英文摘要 | Based on the large exchange of heat fluxes on the Earth's surface in the tropics, we propose that the lightning flash rate (LFR) is proportional to a product of the Bowen ratio and the sum of precipitation and evaporation rates. The proposed relationship is justified on the basis of the conversion of the kinetic energy of charging hydrometeors to the energy of flash discharges. However, the proportional relationship varies depending on the season. This product explains 90% of the variance in the monthly-averaged time series of the total LFR over our study area of 0° N-40° N and 60° E-120° E including south/southeast Asia and some part of southern China. The conversion efficiency is a maximum in the pre-monsoon season and minimum in the winter season. The total heat flux best accounts for the seasonal variation of the LFR. © 2020 Elsevier B.V. |
英文关键词 | Bowen ratio; Heat fluxes; Lightning flash rate; Precipitation; Thermodynamics |
语种 | 英语 |
scopus关键词 | Kinetic energy; Kinetics; Lightning protection; Earth's surface; Evaporation rate; Lightning activity; Lightning flash rate; Lower atmosphere; Proportional relationships; Seasonal variation; Southern China; Heat flux; atmospheric electricity; Bowen ratio; evaporation; heat flux; kinetic energy; lightning; precipitation (climatology); thermodynamics; South Asia; Southeast Asia |
来源期刊 | Atmospheric Research |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/162022 |
作者单位 | Indian Institute of Tropical Meteorology, (Ministry of Earth Sciences, New Delhi), Pune, India |
推荐引用方式 GB/T 7714 | Chandra S.,Siingh D.,Jeni Victor N.,et al. Lightning activity over South/Southeast Asia: Modulation by thermodynamics of lower atmosphere[J],2021,250. |
APA | Chandra S.,Siingh D.,Jeni Victor N.,&Kamra A.K..(2021).Lightning activity over South/Southeast Asia: Modulation by thermodynamics of lower atmosphere.Atmospheric Research,250. |
MLA | Chandra S.,et al."Lightning activity over South/Southeast Asia: Modulation by thermodynamics of lower atmosphere".Atmospheric Research 250(2021). |
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