Treffer: On the Influence of Stroke Current Propagation Velocity on Lightning Horizontal Electric Fields

Title:
On the Influence of Stroke Current Propagation Velocity on Lightning Horizontal Electric Fields
Authors:
ROMERO, Fabio, PIANTINI, Alexandre, COORAY, Vernon
Source:
IEEE transactions on electromagnetic compatibility. 56(4):940-948
Publisher Information:
New York, NY: Institute of Electrical and Electronics Engineers, 2014.
Publication Year:
2014
Physical Description:
print, 38 ref
Original Material:
INIST-CNRS
Subject Terms:
Electrical engineering, Electrotechnique, Physics, Physique, Telecommunications, Télécommunications, Sciences exactes et technologie, Exact sciences and technology, Physique, Physics, Physique des particules elementaires et champs, The physics of elementary particles and fields, Théorie générale des champs et particules, General theory of fields and particles, Courants et leurs propriétés, Currents and their properties, Théorie générale des courants, General theory of currents, Courants pseudovectoriels partiellement conservés, Partially conserved axial-vector currents, Théories spécifiques et modèles d'interaction; systématique des particules, Specific theories and interaction models; particle systematics, Interactions électrofaibles, Electroweak interactions, Courants neutres, Neutral currents, Terre, ocean, espace, Earth, ocean, space, Sciences de la terre, Earth sciences, Géophysique interne, Internal geophysics, Physique du globe, tectonophysique, gravimétrie, Solid-earth geophysics, tectonophysics, gravimetry, Analyse transitoire, Transient analysis, Champ électrique, Electric fields, Champ électromagnétique, Electromagnetic fields, Distribution courant, Current distribution, Décharge atmosphérique, Lightning discharge, Descarga atmosférica, Décharge en retour, Return stroke, Descarga de retorno, Eclair, Lightning, Rayo, Localisation, Localization, Localización, Méthode domaine temps, Time domain method, Método dominio tiempo, Programme transitoire électromagnétique, EMTP, Propagation onde électromagnétique, Electromagnetic wave propagation, Valeur absolue, Absolute value, Valor absoluto, Vitesse propagation, Propagation velocity, Velocidad propagación, 1140D, 1140H, 1215M, 4120J, 5280M, 9145F, 9150J, 9430J, electromagnetic transient analysis, electromagnetic transient propagation, lightning, time-domain analysis
Time:
1140
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
Daimon Engineering & Systems, São Paulo 01307-002, Brazil
Institute of Energy and Environment, University of São Paulo, São Paulo 05508-010, Brazil
Division of Electricity, Uppsala University, Uppsala 753 12, Sweden
ISSN:
0018-9375
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=28807599
Rights:
Copyright 2015 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Earth sciences

Physics of elementary particles and fields
Accession Number:
edscal.28807599
Database:
PASCAL Archive

Weitere Informationen

This paper discusses the influence of stroke current propagation velocity on the characteristics of lightning horizontal electric fields, considering different types of soil and distances to the stroke location. The MTLE model is adopted for the determination of the current distribution along the return stroke channel, whereas the effect of the finite-ground conductivity is taken into account by using the modified Cooray-Rubinstein approximation. This paper also discusses the effect of the propagation velocity on each of the horizontal electric field components. The results show that the horizontal electric field is strongly influenced by the stroke current propagation velocity even for the case of good conductive ground and observation points relatively close to the stroke location. Regardless of the ground conductivity, the peak value of the static component decreases and the negative peak of the radiation component increases with the propagation velocity. Therefore, for short distances to the lightning channel, the absolute peak value of the horizontal electric field tends to decrease as the velocity increases, while for distances of few kilometers or larger its behavior is just the opposite, i.e., the amplitude increases with the propagation velocity.