The effect of auroral disturbances on the propagation of very low frequency signals from the RSDN-20 radio navigation system
- Authors: Larchenko A.V.1, Nikitenko A.S.1, Lebed O.M.1, Pilgaev S.V.1, Fedorenko Y.V.1
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Affiliations:
- Polar Geophysical Institute
- Issue: Vol 88, No 3 (2024)
- Pages: 404-412
- Section: Physics of Auroral Phenomena
- URL: https://jdigitaldiagnostics.com/0367-6765/article/view/654728
- DOI: https://doi.org/10.31857/S0367676524030093
- EDN: https://elibrary.ru/QMLAEF
- ID: 654728
Cite item
Abstract
We presented the results of the analysis of VLF signals of the RSDN-20 radio navigation system recorded at Lovozero, Verkhnetulomsky (both on the Kola Peninsula) and Barentsburg (Svalbard Archipelago) observatories. We found events of an unusual decrease in the amplitude of the horizontal magnetic field at night ionospheric conditions, which occurred during substorms with the AL index below –500 nT. The cases, when optical observations were available during the substorm according to which auroral precipitation were registered, are considered. The observed effect is probably associated with local fluctuations in the electron density profile of the lower ionosphere caused by auroral precipitations during a substorm.
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About the authors
A. V. Larchenko
Polar Geophysical Institute
Author for correspondence.
Email: alexey.larchenko@gmail.com
Russian Federation, Apatity
A. S. Nikitenko
Polar Geophysical Institute
Email: alexey.larchenko@gmail.com
Russian Federation, Apatity
O. M. Lebed
Polar Geophysical Institute
Email: alexey.larchenko@gmail.com
Russian Federation, Apatity
S. V. Pilgaev
Polar Geophysical Institute
Email: alexey.larchenko@gmail.com
Russian Federation, Apatity
Yu. V. Fedorenko
Polar Geophysical Institute
Email: alexey.larchenko@gmail.com
Russian Federation, Apatity
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