Correlation analysis between radar reflectivity and positive lightning flash rate

Lightning is natural phenomena that we will not simply point out its exact origin and when it will strike. Lightning channel is created with extremely high temperature and can occurs multiple of strokes in the same channel. The existence of lightning is known to create damages to properties. This st...

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Main Author:	Endam, Josphene J.
Format:	Thesis
Language:	English
Published:	2020
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/98293/1/JospheneJEndamMSKE2020.pdf
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id	my-utm-ep.98293
record_format	uketd_dc
spelling	my-utm-ep.982932022-12-04T10:15:24Z Correlation analysis between radar reflectivity and positive lightning flash rate 2020 Endam, Josphene J. TK Electrical engineering. Electronics Nuclear engineering Lightning is natural phenomena that we will not simply point out its exact origin and when it will strike. Lightning channel is created with extremely high temperature and can occurs multiple of strokes in the same channel. The existence of lightning is known to create damages to properties. This study aims to investigate the correlation analysis between radar CAPPI (Constant Altitude Plan Position Indicator) reflectivity and lightning flash rate in Malaysia. The correlation is made based on the reflectivity index values at 2 to 5 km radius (water droplet intensity in the cloud) with the lightning flash rate. A total number of clouds to ground lightning flashes have been be analyzed in terms of time domain characteristics such as pulse duration, location based on magnetic direction finding (MDF) and the magnitude of the return stroke. The CAPPI radar data of cloud information that carries precipitation in terms of reflectivity index have been plotted using IRIS program. The correlation has been made by observing the pattern of precipitation and lightning occurrence. In conclusion, the result shows that, there are 88 numbers of positive lightning were found from the 5400 data of different type lightning flashes. The result also shows that, when the reflectivity value is high which is between 50dBZ – 55dBZ (the weather is heavy or very heavy rain/small hail) the possibility of the positive cloud to ground happen is high. 2020 Thesis http://eprints.utm.my/id/eprint/98293/ http://eprints.utm.my/id/eprint/98293/1/JospheneJEndamMSKE2020.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:144568 masters Universiti Teknologi Malaysia, Faculty of Engineering - School of Electrical Engineering Faculty of Engineering - School of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Endam, Josphene J. Correlation analysis between radar reflectivity and positive lightning flash rate
description	Lightning is natural phenomena that we will not simply point out its exact origin and when it will strike. Lightning channel is created with extremely high temperature and can occurs multiple of strokes in the same channel. The existence of lightning is known to create damages to properties. This study aims to investigate the correlation analysis between radar CAPPI (Constant Altitude Plan Position Indicator) reflectivity and lightning flash rate in Malaysia. The correlation is made based on the reflectivity index values at 2 to 5 km radius (water droplet intensity in the cloud) with the lightning flash rate. A total number of clouds to ground lightning flashes have been be analyzed in terms of time domain characteristics such as pulse duration, location based on magnetic direction finding (MDF) and the magnitude of the return stroke. The CAPPI radar data of cloud information that carries precipitation in terms of reflectivity index have been plotted using IRIS program. The correlation has been made by observing the pattern of precipitation and lightning occurrence. In conclusion, the result shows that, there are 88 numbers of positive lightning were found from the 5400 data of different type lightning flashes. The result also shows that, when the reflectivity value is high which is between 50dBZ – 55dBZ (the weather is heavy or very heavy rain/small hail) the possibility of the positive cloud to ground happen is high.
format	Thesis
qualification_level	Master's degree
author	Endam, Josphene J.
author_facet	Endam, Josphene J.
author_sort	Endam, Josphene J.
title	Correlation analysis between radar reflectivity and positive lightning flash rate
title_short	Correlation analysis between radar reflectivity and positive lightning flash rate
title_full	Correlation analysis between radar reflectivity and positive lightning flash rate
title_fullStr	Correlation analysis between radar reflectivity and positive lightning flash rate
title_full_unstemmed	Correlation analysis between radar reflectivity and positive lightning flash rate
title_sort	correlation analysis between radar reflectivity and positive lightning flash rate
granting_institution	Universiti Teknologi Malaysia, Faculty of Engineering - School of Electrical Engineering
granting_department	Faculty of Engineering - School of Electrical Engineering
publishDate	2020
url	http://eprints.utm.my/id/eprint/98293/1/JospheneJEndamMSKE2020.pdf
_version_	1776100576489111552

Correlation analysis between radar reflectivity and positive lightning flash rate

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