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The effect of the 21 August 2017 total solar eclipse on the phase of VLF/LF signals

Rozhnoi, A., Solovieva, M., Shalimov, S., Ouzounov, D., Gallagher, P., Verth, G., McCauley, J., Shelyag, S. and Fedun, V. 2020, The effect of the 21 August 2017 total solar eclipse on the phase of VLF/LF signals, Earth and space science, vol. 7, no. 2, pp. 1-7, doi: 10.1029/2019ea000839.

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Title The effect of the 21 August 2017 total solar eclipse on the phase of VLF/LF signals
Author(s) Rozhnoi, A.
Solovieva, M.
Shalimov, S.
Ouzounov, D.
Gallagher, P.
Verth, G.
McCauley, J.
Shelyag, S.ORCID iD for Shelyag, S. orcid.org/0000-0002-6436-9347
Fedun, V.
Journal name Earth and space science
Volume number 7
Issue number 2
Article ID e2019EA000839
Start page 1
End page 7
Total pages 7
Publisher American Geophysical Union
Place of publication Washington, D.C.
Publication date 2020-02
ISSN 2333-5084
2333-5084
Summary An experimental study of the phase and amplitude observations of sub‐ionospheric very low and low frequency signals is performed to analyse the response of the lower ionosphere during the August 21, 2017 total solar eclipse in the United States of America. Three different sub‐ionospheric wave paths are investigated. The length of the paths varies from 2200 to 6400 km and the signal frequencies are 21.4 kHz, 25.2 kHz and 40.75 kHz. The two paths cross the region of the total eclipse and the third path is in the region of 40‐60% of obscuration. None of the signals reveal any noticeable amplitude changes during the eclipse while negative phase anomalies (from ‐33° to ‐95°) are detected for all three paths. It is shown that the effective reflection height of the ionosphere in low and middle latitudes is increased by about 3‐5 km during the eclipse. Estimation of the electron density change in the lower ionosphere caused by the eclipse, using linear recombination law, shows that the average decrease is by 2.1 to 4.5 times.
Language eng
DOI 10.1029/2019ea000839
Indigenous content off
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2019, The Authors
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30132872

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.