Very Low Frequency Whistler Mode Wave Events Observed Simultaneously by the Kannuslehto Station and Van Allen Probes
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F23%3A00573096" target="_blank" >RIV/68378289:_____/23:00573096 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/00216208:11320/23:10468331
Výsledek na webu
<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022JA031078" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022JA031078</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2022JA031078" target="_blank" >10.1029/2022JA031078</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Very Low Frequency Whistler Mode Wave Events Observed Simultaneously by the Kannuslehto Station and Van Allen Probes
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Very Low Frequency Whistler Mode Wave Events Observed Simultaneously by the Kannuslehto Station and Van Allen Probes
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10305 - Fluids and plasma physics (including surface physics)
Návaznosti výsledku
Projekt
<a href="/cs/project/GA21-01813S" target="_blank" >GA21-01813S: Antropogenní elektromagnetické emise a jejich vliv na vnitřní magnetosféru Země</a><br>
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Geophysical Research-Space Physics
ISSN
2169-9380
e-ISSN
2169-9402
Svazek periodika
128
Číslo periodika v rámci svazku
1
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
12
Strana od-do
e2022JA031078
Kód UT WoS článku
000998856700001
EID výsledku v databázi Scopus
2-s2.0-85146977876