Influence of Interplanetary Shocks on ELF/VLF Waves Observed in the Earth's Magnetosphere

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10389492" target="_blank" >RIV/00216208:11320/18:10389492 - isvavai.cz</a>
Result on the web
<a href="https://www.mff.cuni.cz/veda/konference/wds/proc/pdf18/WDS18_13_f2_Bezdekova.pdf" target="_blank" >https://www.mff.cuni.cz/veda/konference/wds/proc/pdf18/WDS18_13_f2_Bezdekova.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Influence of Interplanetary Shocks on ELF/VLF Waves Observed in the Earth's Magnetosphere
Original language description
In this study, the influence of interplanetary (IP) shocks detected by the Wind spacecraft on the wave intensity in the frequency range up to 20 kHz measured by the DEMETER spacecraft at altitudes of about 700 km is analyzed. Altogether, the analysis of 225 (87 fast forward, 31 fast reverse, 59 slow forward, and 48 slow reverse) shocks detected during 6.5 years of the DEMETER mission is presented. At first, the variation of an overall geomagnetic activity around the time of the shock arrival is investigated using the superposed epoch analysis. The results demonstrate increase of the geomagnetic activity related to the shock occurrence. The variation of wave intensity around the shock detection was investigated by two different techniques: i) using moving averages of the measured wave intensity, and ii) using principal component analysis. The obtained results indicate that the wave intensity variation depends strongly on the type of the shock, but it is typically limited to frequencies below about 10 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
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
WDS'18 Proceedings of Contributed Papers — Physics
ISBN
978-80-7378-374-7
ISSN
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e-ISSN
neuvedeno
Number of pages
8
Pages from-to
85-92
Publisher name
Matfyzpress
Place of publication
Praha
Event location
Prague, Czech Republic
Event date
Jun 5, 2018
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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