Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095923 |
Assessment of turbulence intensity in different spots of lightning flash propagation | |
Jessica C. S. Souza; Eric C. Bruning | |
2021-10-21 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | The updraft speed is correlated to the total lightning flashes a storm produces. Shear along updraft gradients is one of the mechanisms responsible for the production of turbulence kinetic energy (TKE). Thus, the radar-estimated eddy dissipation rate (EDR) overlapped with Lightning Mapping Array (LMA) data is used to evaluate the storm’s kinematic and electrical relationship. The majority of the sampled flashes shows higher turbulence intensities close to lightning initiation regions. As the distance from initiation increases along the lightning propagation path, there is a gradient to less turbulent regions. We identified small- and medium-sized flashes initiated at lower altitudes in regions of smaller EDR values consistent with the unmixed flow within inner part of updrafts. Furthermore, there were a concentration of small flashes initiated in the upper portion of the cloud in high EDR values due to their associated small scale variability. |
领域 | 气候变化 |
URL | 查看原文 |
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/340795 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Jessica C. S. Souza,Eric C. Bruning. Assessment of turbulence intensity in different spots of lightning flash propagation[J]. Geophysical Research Letters,2021. |
APA | Jessica C. S. Souza,&Eric C. Bruning.(2021).Assessment of turbulence intensity in different spots of lightning flash propagation.Geophysical Research Letters. |
MLA | Jessica C. S. Souza,et al."Assessment of turbulence intensity in different spots of lightning flash propagation".Geophysical Research Letters (2021). |
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