Electric Field Waveforms of Very Close Negative Cloud to Ground Flashes

Autor:	Mohd Riduan Ahmad, Shamsul Ammar Shamsul Baharin
Rok vydání:	2020
Předmět:	Location data Meteorology business.industry Electric field Negative charge Waveform Environmental science Cloud computing business Lightning Cloud to ground Measurement site
Zdroj:	Journal of Engineering and Scientific Research. 2:115-120
ISSN:	2685-1695 2685-0338
Popis:	Negative cloud-to-ground brings down negative charge from cloud to ground. In this paper, observations of the characteristics of fast and slow electric field within reversal distance (less than 7-8 km from lightning sensor) are reported. A total of four negative cloud to ground lashes detected very close to our measurement site in Universiti Teknikal Malaysia Melaka on 12th November 2019 were selected for analysis. The captured waveforms are compared with the location data provided by Tenaga Nasional Berhad Research (TNBR) for validation purposes. It can be observed that electric field changes of stepped leader and return stroke are always positive whether beyond or within reversal distance. Meanwhile, for cloud activities, the electric field change is always negative within reversal distance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b359cde30eb62f8e2a752e13635ebb7d https://doi.org/10.23960/jesr.v2i2.68 Zobrazit plný text záznamu