Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.atmosres.2017.03.003 |
Relationship between lightning activity and vertical airflow characteristics in thunderstorms | |
Wang, Chenxi1,2,3; Zheng, Dong1,2; Zhang, Yijun1,2; Liu, Liping1,2 | |
2017-07-15 | |
发表期刊 | ATMOSPHERIC RESEARCH
![]() |
ISSN | 0169-8095 |
EISSN | 1873-2895 |
出版年 | 2017 |
卷号 | 191页码:43818 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Cloud-to-ground (CG) lightning data, wind field data derived from dual-Doppler radars, and radar reflectivity data are combined to investigate the relationships between CG lightning and the parameters associated with vertical airflow. A new method for the identification of thunderstorm cells based on the aggregation of flashes is developed. It is found that approximately 79.1% of CG flashes are located in the region featuring weak vertical velocity at the 0 C-omicron level; ranging from -5 to 5 m s(-1), with the majority in the weak updraft region, especially for negative CG lightning and the CG lightning in the initial stage of thunderstorms. The CG lightning rate is correlated with the volume of updraft for vertical velocities within certain limits. The sum of absolute precipitation ice mass flux in the region from 7 to 11 km is more significantly correlated with the CG flash rate, with correlation coefficients of 0.73, 0.71, and 0.74 for the initial, mature, and dissipating stages of thunderstorms, respectively. On average, the updraft in the thunderstorm at the stage when the last CG flash occurs accounts for a much smaller ratio to the whole volume of the thunderstorm than that corresponding to the first CG flash. The maximum updraft and maximum height of the 10 and 20 m s(-1) updraft speeds are close for the first and last CG flashes, indicating the dependence of the lightning on strength of updraft. It is deduced that layered large-range charges may be more conducive to the generation of CG flashes than charge pockets in the thunderstorm. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Lightning activity Thunderstorm cell identification Vertical airflow Correlation |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000403986400002 |
WOS关键词 | INTENSE CONVECTIVE STORMS ; SUPERCELL STORM ; TOGA COARE ; CHARGE ; RADAR ; PRECIPITATION ; ELECTRIFICATION |
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/38192 |
专题 | 地球科学 |
作者单位 | 1.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100087, Peoples R China; 2.Chinese Acad Meteorol Sci, Lab Lightning Phys & Protect Engn, Beijing 100081, Peoples R China; 3.China Meteorol Adm, Training Ctr, Beijing 100081, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Chenxi,Zheng, Dong,Zhang, Yijun,et al. Relationship between lightning activity and vertical airflow characteristics in thunderstorms[J]. ATMOSPHERIC RESEARCH,2017,191:43818. |
APA | Wang, Chenxi,Zheng, Dong,Zhang, Yijun,&Liu, Liping.(2017).Relationship between lightning activity and vertical airflow characteristics in thunderstorms.ATMOSPHERIC RESEARCH,191,43818. |
MLA | Wang, Chenxi,et al."Relationship between lightning activity and vertical airflow characteristics in thunderstorms".ATMOSPHERIC RESEARCH 191(2017):43818. |
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