Počet záznamů: 1
Very Low Frequency Whistler Mode Wave Events Observed Simultaneously by the Kannuslehto Station and Van Allen Probes
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SYSNO ASEP 0573096 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Very Low Frequency Whistler Mode Wave Events Observed Simultaneously by the Kannuslehto Station and Van Allen Probes Tvůrce(i) Bezděková, B. (CZ)
Němec, F. (CZ)
Manninen, J. (FI)
Santolík, Ondřej (UFA-U) RID, ORCID
Hospodarsky, G. B. (US)
Kurth, W. S. (US)Celkový počet autorů 6 Číslo článku e2022JA031078 Zdroj.dok. Journal of Geophysical Research-Space Physics. - : Wiley - ISSN 2169-9380
Roč. 128, č. 1 (2023)Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova VLF emissions ; ULF waves ; chorus Vědní obor RIV BL - Fyzika plazmatu a výboje v plynech Obor OECD Fluids and plasma physics (including surface physics) Způsob publikování Omezený přístup Institucionální podpora UFA-U - RVO:68378289 UT WOS 000998856700001 EID SCOPUS 85146977876 DOI https://doi.org/10.1029/2022JA031078 Anotace Events characterized by substantial intensity enhancements in the frequency range between about 1.5 and 4 kHz in the measurements of the ground-based Kannuslehto station, Finland are analyzed. Altogether, as many as 465 events are identified in the Kannuslehto data measured during the campaigns between December 2012 and October 2019. It is shown that the events usually last for several hours and they occur preferentially on the dawn side during geomagnetically active periods. Simultaneous measurements performed by the Van Allen Probes spacecraft are used to reveal the L-shells and magnetic local times where a corresponding intensity increase occurs in space. A backward ray tracing analysis is further employed to investigate the wave propagation between the tentative source region and the ground. Wave normal angles of waves eventually detectable at Kannuslehto are determined and compared with those obtained from a detailed wave analysis. Either a wave ducting, propagation in the Earth-ionosphere waveguide, or their combination seem to be needed for the waves to reach Kannuslehto. Pracoviště Ústav fyziky atmosféry Kontakt Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Rok sběru 2024 Elektronická adresa https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022JA031078
Počet záznamů: 1