000128046 001__ 128046
000128046 005__ 20231108213503.0
000128046 0247_ $$2doi$$a10.1049/hve.2019.0017
000128046 0248_ $$2sideral$$a117325
000128046 037__ $$aART-2020-117325
000128046 041__ $$aeng
000128046 100__ $$aHe, L.
000128046 245__ $$aCharacteristics of different charge transfer modes in upward flashes inferred from simultaneously measured currents and fields
000128046 260__ $$c2020
000128046 5060_ $$aAccess copy available to the general public$$fUnrestricted
000128046 5203_ $$aThe authors present an analysis of different charge transfer modes during upward negative flashes. The analysis includes a total number of 94 pulses that occurred during two upward negative flashes recorded at the Säntis Tower. The pulses included 59 mixed-mode (MM) initial continuous current (ICC) pulses, 17 M-component-type ICC (M-ICC) pulses, 8 return-stroke pulses, and 10 classical M-component (MC) pulses. It is found that the initial stage of the flash is responsible for the largest share of the total charge transferred to the ground. Simulation results for the electric fields associated with the considered charge transfer modes are presented and discussed. Return stroke (RS) and MM pulses were simulated adopting the MTLE model, while MCs and M-ICC pulses were simulated using the guided wave model of Rakov et al. The simulated results are shown to be in good agreement with simultaneous records of electric fields measured at a distance of 15 km from the Säntis Tower. The inferred velocities for MCs and M-ICC pulses range from 2.0 × 107 to 9.0 × 107 m/s, and the corresponding junction point heights range from 1.0 to 2.0 km. The inferred pulse velocities for RSs and MM pulses range from 1.3 × 108 to 1.65 × 108 m/s. The inferred current attenuation constants of the MTLE model obtained in this study range from 0.3 to 0.8 km, lower than the value of 2 km previously suggested for RSs in downward flashes. The obtained results support the assumption that the mode of charge transfer to the ground giving rise to MM pulses is similar to that of RSs. The results are also in support of the generally assumed similarity between M-ICC pulses and classical MCs.
000128046 536__ $$9info:eu-repo/grantAgreement/EC/H2020/737033/EU/Laser Lightning Rod/LLR$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 737033-LLR
000128046 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000128046 590__ $$a4.714$$b2020
000128046 591__ $$aENGINEERING, ELECTRICAL & ELECTRONIC$$b42 / 273 = 0.154$$c2020$$dQ1$$eT1
000128046 592__ $$a0.731$$b2020
000128046 593__ $$aEnergy Engineering and Power Technology$$c2020$$dQ1
000128046 593__ $$aElectrical and Electronic Engineering$$c2020$$dQ1
000128046 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000128046 700__ $$aAzadifar, M.
000128046 700__ $$aLi, Q.
000128046 700__ $$aRubinstein, M.
000128046 700__ $$aRakov, V.A.
000128046 700__ $$0(orcid)0000-0002-4099-9918$$aMediano, A.$$uUniversidad de Zaragoza
000128046 700__ $$aPavanello, D.
000128046 700__ $$aRachidi, F.
000128046 7102_ $$15008$$2785$$aUniversidad de Zaragoza$$bDpto. Ingeniería Electrón.Com.$$cÁrea Tecnología Electrónica
000128046 773__ $$g5, 1 (2020), 30-37$$pHigh volt.$$tHigh voltage$$x2397-7264
000128046 8564_ $$s4249086$$uhttps://zaguan.unizar.es/record/128046/files/texto_completo.pdf$$yVersión publicada
000128046 8564_ $$s3643303$$uhttps://zaguan.unizar.es/record/128046/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000128046 909CO $$ooai:zaguan.unizar.es:128046$$particulos$$pdriver
000128046 951__ $$a2023-11-08-20:02:03
000128046 980__ $$aARTICLE