Lightning radiation field spectra of cloud flashes

dc.contributor.author	Sonnadara, D.U.J.
dc.contributor.author	Cooray, Vernon
dc.contributor.author	Fernando, Mahendra
dc.date.accessioned	2012-12-20T05:16:59Z
dc.date.available	2012-12-20T05:16:59Z
dc.date.issued	2004
dc.identifier.citation	Proceedings of the International Conference on Lightning Protection (2004) ICLP	en_US
dc.identifier.uri	http://archive.cmb.ac.lk:8080/xmlui/handle/70130/3348
dc.description.abstract	Electric radiation fields produced by lightning cloud flashes have been Fourier analysed to obtain amplitude spectra for frequencies in the range of 20 kHz to 20 MHz. The spectra were generated by analysing the first 10ms time window of cloud flashes and they show f-1 frequency dependence up to 2 MHz followed by f-2 dependence and higher for frequencies above 2 MHz. By utilizing digital filters it has been shown that measurements taken with narrow band filters do agree with the results produced under wide band measurements.	en_US
dc.language.iso	en	en_US
dc.subject	Lightning	en_US
dc.subject	Radiation field spectra	en_US
dc.subject	Cloud flashes	en_US
dc.title	Lightning radiation field spectra of cloud flashes	en_US
dc.type	Research abstract	en_US