Probabilistic model of lightning initiation and propagation in thundercloud using a one-dimensional electric circuit
Rattachement africain : ph, jp. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Abstract Lightning initiation and propagation is complex and probabilistic in nature. In this study, we attempt to replicate these phenomena using an electric circuit model. We reproduce lightning behaviors numerically by dividing an air column into discrete cells of resistor and capacitor components. First, we reproduce the attributes of classical tripole structure of electric field in thunderclouds. We represent charging mechanisms due to electrification and precipitation as current sources in the circuit. As a cell charges, the electric field increases to near dielectric strength limit causing its resistor to breakdown probabilistically and create a discharge path for the current to flow. Then, the voltage and electric field across the cells are measured by solving the finite difference form of the circuit equation with a Gaussian solver package for Java in Eclipse IDE. The electric discharge paths revealed that lightning is initiated at the negative charge pole 4.5 km from the ground. However, a propagation path toward the center of the thundercloud can be produced once an initiation leader induces electric breakdown in nearby cells. With our model, three types of natural lightning propagation paths were reproduced consisting of split intra-cloud (IC), downward cloud-to-ground (CG), and upward intra-cloud. Numerical trials of 1000 simulations identified the occurrence of 284 downward CG, 709 split IC, and 7 upward IC lightning. We observed a ratio of 2.52 from the numerically generated IC and CG lightning paths, which is in good agreement with observations from satellite- and surface-based recorded lightning measurements.
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Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Probabilistic model of lightning initiation and propagation in thundercloud using a one-dimensional electric circuit
- Date Crossref
- 01/06/2025
- Éditeur
- IOP Publishing
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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University of the Philippines Diliman National Institute of Physics pays non établi dans la noticeUniversité ou école supérieure
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Mapúa University Department of Physics pays non établi dans la noticeStructure de recherche
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The University of Osaka pays non établi dans la noticeUniversité ou école supérieure
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National Institutes for Quantum Science and Technology pays non établi dans la noticeStructure de recherche
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Kansai Institute for Photon Science pays non établi dans la noticeStructure de recherche
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National Institute of Advanced Industrial Science and Technology pays non établi dans la noticeOrganisme public
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Osaka University Institute of Laser Engineering pays non établi dans la noticeUniversité ou école supérieure
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Kansai Photon Science Institute pays non établi dans la noticeStructure de recherche
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Research Institute for Advanced Electronics and Photonics pays non établi dans la noticeStructure de recherche
National Institute of Physics — University of the Philippines Diliman, Department of Physics — Mapúa University et The University of Osaka, avec 6 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.