Attenuation of electromagnetic waves at the frequency similar to 1.7 kHz in the upper ionosphere observed by the DEMETER satellite in the vicinity of earthquakes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10130869" target="_blank" >RIV/00216208:11320/12:10130869 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.4401/ag-5276" target="_blank" >http://dx.doi.org/10.4401/ag-5276</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4401/ag-5276" target="_blank" >10.4401/ag-5276</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Attenuation of electromagnetic waves at the frequency similar to 1.7 kHz in the upper ionosphere observed by the DEMETER satellite in the vicinity of earthquakes

Popis výsledku v původním jazyce

The DEMETER satellite was the first satellite specifically dedicated to the recording of electromagnetic phenomena connected with seismic activity. Almost 6.5 years of measurements provide good opportunities to analyze a unique dataset with global Earthcoverage. We present the results of a statistical study of the intensity of very low frequency electromagnetic waves recorded in the upper ionosphere. Robust two-step data processing has been used. The expected unperturbed distribution of the power spectral densities of electromagnetic emissions was calculated first. Then, the power spectral densities measured in the vicinities of earthquakes are compared with the unperturbed distribution and are examined for the presence of uncommon effects related toseismic activity. The statistical significance of the observed effects is evaluated. We confirm the previously reported results of a very small, but statistically significant, decrease in wave intensities a few hours before times of main

Název v anglickém jazyce

Attenuation of electromagnetic waves at the frequency similar to 1.7 kHz in the upper ionosphere observed by the DEMETER satellite in the vicinity of earthquakes

Popis výsledku anglicky

The DEMETER satellite was the first satellite specifically dedicated to the recording of electromagnetic phenomena connected with seismic activity. Almost 6.5 years of measurements provide good opportunities to analyze a unique dataset with global Earthcoverage. We present the results of a statistical study of the intensity of very low frequency electromagnetic waves recorded in the upper ionosphere. Robust two-step data processing has been used. The expected unperturbed distribution of the power spectral densities of electromagnetic emissions was calculated first. Then, the power spectral densities measured in the vicinities of earthquakes are compared with the unperturbed distribution and are examined for the presence of uncommon effects related toseismic activity. The statistical significance of the observed effects is evaluated. We confirm the previously reported results of a very small, but statistically significant, decrease in wave intensities a few hours before times of main

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Annals of Geophysics

ISSN

1593-5213

e-ISSN

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Svazek periodika

55

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

IT - Italská republika

Počet stran výsledku

7

Strana od-do

157-163

Kód UT WoS článku

000306480400019

EID výsledku v databázi Scopus

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