Unusual Electromagnetic Signatures of European North Atlantic Winter Thunderstorms

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F17%3A00479115" target="_blank" >RIV/68378289:_____/17:00479115 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/17:10371496

Result on the web

<a href="http://dx.doi.org/10.1038/s41598-017-13849-4" target="_blank" >http://dx.doi.org/10.1038/s41598-017-13849-4</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41598-017-13849-4" target="_blank" >10.1038/s41598-017-13849-4</a>

Result language

angličtina

Original language name

Unusual Electromagnetic Signatures of European North Atlantic Winter Thunderstorms

Original language description

All lightning strokes generate electromagnetic pulses –atmospherics– which can travel over distances of thousands of kilometers. Night-side atmospherics show typical frequency dispersion signatures caused by sub-ionospheric propagation. Their analysis can be used to determine the distance to the source lightning, and therefore it represents a safe tool for investigation of distant thunderstorms, as well as for indirect observations of the lower ionosphere. However, such analysis has never been done on the dayside. Here we present the first results which show unusual daytime atmospherics with dispersion signatures originating from strong thunderstorms which occurred during winter months 2015 in the North Atlantic region. Using newly developed analysis techniques for 3-component electromagnetic measurements we are able to determine the source azimuth and to attribute these rare atmospherics to both positive and negative lightning strokes in northern Europe. We consistently find unusually large heights of the reflective ionospheric layer which are probably linked to low fluxes of solar X rays and which make the dayside subionospheric propagation possible. Although the atmospherics are linearly polarized, their dispersed parts exhibit left handed polarization, consistent with the anticipated continuous escape of the right-hand polarized power to the outer space in the form of whistlers.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

Project

<a href="/en/project/GA17-07027S" target="_blank" >GA17-07027S: Analysis of electromagnetic manifestations of thunderstorms using multi-point and multi-instrument ground-based and satellite measurements</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Scientific Reports

ISSN

2045-2322

e-ISSN

—

Volume of the periodical

7

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

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UT code for WoS article

000413597800065

EID of the result in the Scopus database

2-s2.0-85032193801