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dc.contributor.authorMontañá Puig, Juan
dc.contributor.authorVan der Velde, Oscar Arnoud
dc.contributor.authorMarch Nomen, Víctor
dc.contributor.authorRomero Durán, David
dc.contributor.authorSolà de las Fuentes, Glòria
dc.contributor.authorPineda Rüegg, Nicolau
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica
dc.date.accessioned2013-03-13T14:47:48Z
dc.date.created2012-11-01
dc.date.issued2012-11-01
dc.identifier.citationMontaña, J. [et al.]. High-speed video of lightning and x-ray pulses during the 2009–2010 observation campaigns in northeastern Spain. "Atmospheric research", 01 Novembre 2012, vol. 117, p. 91-98.
dc.identifier.issn0169-8095
dc.identifier.urihttp://hdl.handle.net/2117/18262
dc.description.abstractThis paper summarizes results obtained by the 2009–2010 field campaigns conducted in northeastern Spain using a high speed camera, VHF interferometer, VLF lightning location system and scintillation detectors for energetic radiation. The main purpose was to obtain new insight into the lightning processes which emit x/γ radiation. For just one (very close) lightning strike, 99 x-ray pulses were emittedwithin 0.86 ms and had an energy higher that 10 keV. This burst was associated with the final stages of a downward negative leader. The high-speed camera data also allowed to identify various previously unreported features in different types of cloud-to-ground lightning flashes. At video frame rates of 10,000 fps, some branches of negative leaders of cloud-to-ground flashes were illuminated for the duration of only one frame. During positive cloud-to-ground flashes, the high speed videos showed an intense activity of recoil leaders. In the case of intra-cloud lightning, the VHF interferometer network did not present a clear relation between detections and visible leader. Instead, bursts of VHF detections corresponded visually to a long-lasting bright channel under the cloud base
dc.format.extent8 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Energies::Energia elèctrica
dc.subject.lcshLightning
dc.subject.lcshX-rays
dc.titleHigh-speed video of lightning and x-ray pulses during the 2009–2010 observation campaigns in northeastern Spain
dc.typeArticle
dc.subject.lemacLlamps
dc.subject.lemacRaigs X
dc.identifier.doi10.1016/j.atmosres.2011.09.013
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac11711902
dc.description.versionPostprint (published version)
dc.date.lift10000-01-01
local.citation.authorMontaña, J.; Van der Velde, O.; March, V.; Romero, D.; Solà, G.; Pineda, N.
local.citation.publicationNameAtmospheric research
local.citation.volume117
local.citation.startingPage91
local.citation.endingPage98


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