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Thunderstorm electric fields probed by extensive air showers through their polarized radio emission
Univ Groningen, Netherlands.
Univ Groningen, Netherlands ; Vrije Univ Brussel, Belgium.
Radboud Univ Nijmegen, Netherlands.
Radboud Univ Nijmegen, Netherlands ; Vrije Univ Brussel, Belgium.
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2017 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 95, no 8, 083004Article in journal (Refereed) Published
Abstract [en]

We observe a large fraction of circular polarization in radio emission from extensive air showers recorded during thunderstorms, much higher than in the emission from air showers measured during fair-weather circumstances. We show that the circular polarization of the air showers measured during thunderstorms can be explained by the change in the direction of the transverse current as a function of altitude induced by atmospheric electric fields. Thus by using the full set of Stokes parameters for these events, we obtain a good characterization of the electric fields in thunderclouds. We also measure a large horizontal component of the electric fields in the two events that we have analyzed.

Place, publisher, year, edition, pages
American Physical Society, 2017. Vol. 95, no 8, 083004
National Category
Physical Sciences
Research subject
Natural Science, Physics
Identifiers
URN: urn:nbn:se:lnu:diva-67505DOI: 10.1103/PhysRevD.95.083004ISI: 000406878500003OAI: oai:DiVA.org:lnu-67505DiVA: diva2:1137030
Available from: 2017-08-30 Created: 2017-08-30 Last updated: 2017-08-30Bibliographically approved

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Thoudam, Satyendra
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Department of Physics and Electrical Engineering
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