Global S&T Development Trend Analysis Platform of Resources and Environment
Initiation of lightning flashes simultaneously observed from space and the ground: Narrow bipolar events | |
Jesús A. López, Joan Montanyà, Oscar van der Velde, David Romero, ... Víctor Reglero | |
2021-12-20 | |
发表期刊 | Atmospheric Research
![]() |
出版年 | 2021 |
英文摘要 | We investigate the initiation of four lightning flashes detected from ground by means of the Colombia Lightning Mapping Array (Colombia-LMA) and simultaneously observed from space by the optical sensors of the Atmosphere-Space Interactions Monitor (ASIM) on board the International Space Station (ISS), the Geostationary Lightning Mapper (GLM), and the Lightning Imaging Sensor (LIS-ISS) on the ISS. The initiations of the flashes are characterized by isolated and predominant optical blue pulses (337.0 nm). In three of the flashes, red emissions (777.4 nm), a dominant line of hot lightning, were not detected during their initiation. In these cases, the initiations were also accompanied by bipolar VLF/LF waveform with a narrow short duration (<40 μs) and VHF emissions with high radio frequency power (<269 kW). The detection of the blue emissions without any red luminosity supports that the fast breakdown processes at the flash initiation can be exclusively of streamer nature. The onset of the fourth flash was associated with both blue and red radiation, and with weak narrow bipolar waveform in VLF/LF and low VHF power. The flashes initiated between the midlevel negative and upper positive charge regions. This paper presents and discusses the first fast breakdown processes observed simultaneously from ground by means a Lightning Mapping Array (LMA) and from space during the onset of lightning flashes. |
领域 | 地球科学 |
URL | 查看原文 |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/344127 |
专题 | 地球科学 |
推荐引用方式 GB/T 7714 | Jesús A. López, Joan Montanyà, Oscar van der Velde, David Romero, ... Víctor Reglero. Initiation of lightning flashes simultaneously observed from space and the ground: Narrow bipolar events[J]. Atmospheric Research,2021. |
APA | Jesús A. López, Joan Montanyà, Oscar van der Velde, David Romero, ... Víctor Reglero.(2021).Initiation of lightning flashes simultaneously observed from space and the ground: Narrow bipolar events.Atmospheric Research. |
MLA | Jesús A. López, Joan Montanyà, Oscar van der Velde, David Romero, ... Víctor Reglero."Initiation of lightning flashes simultaneously observed from space and the ground: Narrow bipolar events".Atmospheric Research (2021). |
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