Ahmad, Mohd. Riduan and Shamsul Baharin, Shamsul Ammar and Yusop, Norbayah and Mohd. Esa, Mona Riza and Sidik, Muhammad Abu Bakar (2022) Occurrence of positive cloud-to-ground lightning during flash flood in Malacca. In: 2022 IEEE International Conference in Power Engineering Application, ICPEA 2022, 7 - 8 March 2022, Shah Alam, Malaysia.
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Official URL: http://dx.doi.org/10.1109/ICPEA53519.2022.9744678
Abstract
In the tropics, the occurrence of positive Cloud-To-Ground (CG) flash is less frequent, but it can produce strokes with higher peak currents than negative CG. Thus, positive CG flashes are potentially more fatal and dangerous than negative CG flashes. Moreover, a recent study found that positive CG flashes are related to flash flood occurrence. In this paper, electromagnetic fields of 63 positive CG flashes detected from a storm when a flash flood event happened in Malacca on 20 October 2021 are analyzed. All positive CG flashes have been detected close to the lightning sensor located in Universiti Teknikal Malaysia Melaka where some of the flashes were detected within reversal distance. The characteristics of the slow electric field changes show that the cloud responsible for the flash flood event was having an ordinary tripolar charge structure.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | flash flood, lightning, positive cloud-To-ground |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Electrical Engineering |
| ID Code: | 98621 |
| Deposited By: | Widya Wahid |
| Deposited On: | 21 Jan 2023 01:29 |
| Last Modified: | 21 Jan 2023 01:29 |
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