Longitudinal Dependence of the Intensity of Whistler Mode Electromagnetic Emissions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10372224" target="_blank" >RIV/00216208:11320/17:10372224 - isvavai.cz</a>
Result on the web
<a href="https://www.mff.cuni.cz/veda/konference/wds/proc/pdf17/WDS17_07_f2_Zahlava.pdf" target="_blank" >https://www.mff.cuni.cz/veda/konference/wds/proc/pdf17/WDS17_07_f2_Zahlava.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Longitudinal Dependence of the Intensity of Whistler Mode Electromagnetic Emissions
Original language description
Statistical studies of the intensity of very low frequency (VLF) electromagnetic waves in the Earth's inner magnetosphere are usually performed in terms of their frequency, L-shell, magnetic local time (MLT), and geomagnetic activity dependencies. We use the measurements performed by the DEMETER (2004-2010) and Van Allen Probes (2012-2016, still operating) spacecraft to perform an analysis with respect to the geomagnetic longitude, i.e., a parameter which is usually not considered. The longitudinal dependence is observed only inside the plasmasphere and varies with the wave frequency. We distinguish four frequency ranges: (i) up to 500 Hz, which exhibits no longitudinal dependence at all, (ii) from 0.5 to 1 kHz, (iii) from 1 to 2 kHz, in which the longitudinal dependence is most pronounced, and (iv) larger than 2 kHz, where the overall wave intensity significantly falls. The obtained results, especially during the MLT night, are in good agreement with the normalized flash rate calculated from the OTD/LIS data. This strongly suggests that the waves from the lightning activity significantly contribute to the overall wave intensity in the night-side plasmasphere at frequencies from 0.5 to 2 kHz.
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
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

Article name in the collection
WDS'17 Proceedings of Contributed Papers — Physics
ISBN
978-80-7378-356-3
ISSN
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e-ISSN
neuvedeno
Number of pages
9
Pages from-to
46-54
Publisher name
Matfyzpress
Place of publication
Praha
Event location
Prague, Czech Republic
Event date
Jun 6, 2017
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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