Skripsi

KARAKTERISASI RETURN STROKE PETIR NEGATIF PADA KAWASAN PALEMBANG DAN SEKITARNYA

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Penilaian

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Negative cloud-to-ground lightning (CG-flash) is a significant meteorological phenomenon, particularly in tropical regions with high storm activity. This research presents a detailed characterization of negative lightning return strokes recorded in the Bukit Besar, Palembang area, and conducts a comparative analysis with data from previous studies. Data collection will be carried out during the month of August 2025. Out of a total of 878 initial data points recorded, the selection and verification process successfully identified 85 negative CG-flashes showing the presence of the first return stroke, with 61 data points (72%) identified as meeting the criteria for Lightning Return Stroke and 24 data points (28%) not identified. Of the 61 characterized data points, 17 were followed by a second return stroke, while 44 were single 1st return strokes. Quantitative analysis of the 61 1st return stroke data was performed based on seven main parameters. The results show the arithmetic mean (AM) and standard deviation (SD) values as follows: Zero-to-Peak Rise Time of 9.05 ± 4.06 µs, 10 to 90% Rise Time of 7.24 ± 3.25 µs, Zero-Crossing Time of 23.31 ± 7.74 µs, Slow Front Duration of 2.49 ± 1.40 µs, Slow Front Amplitude Relative to the Peak of 22.43 ± 10.21%, Fast Transition 10 to 90% Rise Time of 4.48 ± 2.44 µs, and Width dE/dt Pulse at Half Peak Value of 9.05 ± 4.71 µs. This difference suggests that the physical characteristics of lightning are not only determined by climate similarity, but are also strongly influenced by local geographical factors, meteorological conditions, and annual weather variations.

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Availability

Inventory Code	Barcode	Call Number	Location	Status
2507006219	T185572	T1855722025	Central Library (Reference)	Available but not for loan - Not for Loan

Detail Information

Series Title

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Call Number

T1855722025

Publisher

Indralaya : Prodi Teknik Elektro, Fakultas Teknik Universitas Sriwijaya., 2025

Collation

xxv, 157 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

551.554 07

Content Type

Text

Media Type

unmediated

Carrier Type

other (computer)

Edition

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Subject(s)

Prodi Teknik Elektro
Return Stroke Petir

Specific Detail Info

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Statement of Responsibility

MI

Other version/related

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