Audible Frequency Analysis of Ground Flashes

dc.contributor.author	Sidath Abegunawardana; JAP Bodhika; Sankha Nanayakkara; Upul Sonnadara; Mahendra Fernando; Vernon Cooray
dc.date.accessioned	2021-04-20T04:48:52Z
dc.date.available	2021-04-20T04:48:52Z
dc.date.issued	2018
dc.identifier.citation	International Conference on Lightning Protection (ICLP), 34	en_US
dc.identifier.uri	http://archive.cmb.ac.lk:8080/xmlui/handle/70130/5187
dc.description.abstract	Abstract—Thunder signatures have been categorized into three types using recorded peak pressure. The variation in fundamental frequency initiated by ground flashes has been studied by using an acoustic spectrum of thunder. Stransformation has used to estimate the dominant frequency variation around the peak pressure. The mean fundamental frequencies of type 3 ground and cloud flashes are 160 Hz and 98 Hz respectively. The mean frequencies of type 2 ground and cloud flashes are 108 Hz and 82 Hz respectively. The mean fundamental frequencies of type 1 ground and cloud flashes are 88 Hz and 123 Hz respectively.
dc.language.iso	en	en_US
dc.publisher	ICLP	en_US
dc.subject	Spectrogram	en_US
dc.subject	Thunder	en_US
dc.subject	Cloud flash	en_US
dc.subject	Ground flash	en_US
dc.title	Audible Frequency Analysis of Ground Flashes	en_US
dc.type	Article	en_US