Please use this identifier to cite or link to this item: http://archive.cmb.ac.lk:8080/xmlui/handle/70130/193
Full metadata record
DC FieldValueLanguage
dc.contributor.authorWeerasekera, A.B.-
dc.contributor.authorSonnadara, D.U.J.-
dc.contributor.authorFernando, I.M.K.-
dc.contributor.authorLelwala, R.-
dc.contributor.authorAriyaratne, T.R.-
dc.contributor.authorLiyanage, J.P.-
dc.date.accessioned2011-10-05T06:32:32Z-
dc.date.available2011-10-05T06:32:32Z-
dc.date.issued2001-
dc.identifier.citationSingapore Journal of Physics, 17 (2001) 37-45-
dc.identifier.urihttp://archive.cmb.ac.lk:8080/xmlui/handle/70130/193-
dc.description.abstractTwo lightning direction-finding stations were utilised in measuring the lightning ground flashes in and around Sri Lanka during the year 1999. By using 57 published triggered lightning data it has been shown that the peak currents at the source location can be estimated by using the range normalised signal strengths measured by the DF stations. The estimated errors in the peak currents vary exponentially with the distance between the strike location and DF station site and have a maximum error of 2.5 kA within their nominal range of 400 km. The peak current measurements are sensitive to the attenuation due to finite conductivity of ground and hence depend on the range at which the measurements are conducted. The calculated average lightning peak current values found to be in the range of 10-250 km and 20-120km are, 38 kA and 27 kA respectively for Sri Lanka in the tropics which agrees well with the past measurements done in other countries.en_US
dc.language.isoenen_US
dc.subjectlightning peak currentsen_US
dc.subjectclouden_US
dc.subjectflashesen_US
dc.titleMeasurements of lightning peak currents in the first return stroke of negative cloud to ground flashesen_US
dc.typeResearch abstracten_US
Appears in Collections:Department of Physics

Files in This Item:
File Description SizeFormat 
Abstract 2 .doc58 kBMicrosoft WordView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.