Power Line Harmonic Radiation Observed by the Van Allen Probes Spacecraft
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F22%3A00558215" target="_blank" >RIV/68378289:_____/22:00558215 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/22:10456511
Result on the web
<a href="https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022JA030320" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022JA030320</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2022JA030320" target="_blank" >10.1029/2022JA030320</a>
Alternative languages
Result language
angličtina
Original language name
Power Line Harmonic Radiation Observed by the Van Allen Probes Spacecraft
Original language description
We present a systematic analysis of Power Line Harmonic Radiation (PLHR) electromagnetic wave events observed by the Van Allen Probes spacecraft over the entire duration of the mission (2012-2019). PLHR events are radiated by electric power systems on the ground at harmonics of the base power system frequency (50 or 60 Hz, depending on the region). We analyze wave intensities at frequencies corresponding to the first few harmonics and we demonstrate that they are significantly enhanced at the times when the field-aligned magnetic footprint of the spacecraft is above industrialized areas. Considering the spacecraft locations close to the equatorial plane, this represents experimental evidence that PLHR emissions may propagate up to radial distances as large as about 4 Earth radii. Average frequency spectra above selected industrialized regions reveal increased wave intensities at the frequencies corresponding to the first and the third harmonics, in particular during the nighttime. Multicomponent wave measurements allow us to perform a detailed wave analysis of polarization and propagation properties of the events. The waves are typically right-handed elliptically or nearly circularly polarized, propagating with oblique wave normal angles from low latitude sources and more field-aligned wave vectors from high latitude sources. The sign of the parallel component of the Poynting flux confirms that the events indeed propagate from the anticipated ground regions. Few events observed above the United States region propagate in the opposite direction, which is interpreted as wave bouncing between the hemispheres.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Geophysical Research-Space Physics
ISSN
2169-9380
e-ISSN
2169-9402
Volume of the periodical
127
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
e2022JA030320
UT code for WoS article
000805024100001
EID of the result in the Scopus database
2-s2.0-85132921973