The Great Reduction of Equatorial Electrojet During the Solar Eclipse on 14 December 2020
Abstract The solar eclipse has a great influence on the variability of the ionosphere because of the obscuration of solar radiation. Using the equatorial electrojet (EEJ) and plasma measurements from Swarm, zonal winds from the Michelson Interferometer for Global High‐resolution Thermospheric Imagin...
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| Format: | Article |
| Language: | English |
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Wiley
2022-12-01
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| Series: | Space Weather |
| Online Access: | https://doi.org/10.1029/2022SW003295 |
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| author | Kedeng Zhang Hui Wang |
| author_facet | Kedeng Zhang Hui Wang |
| author_sort | Kedeng Zhang |
| collection | DOAJ |
| description | Abstract The solar eclipse has a great influence on the variability of the ionosphere because of the obscuration of solar radiation. Using the equatorial electrojet (EEJ) and plasma measurements from Swarm, zonal winds from the Michelson Interferometer for Global High‐resolution Thermospheric Imaging on Ionospheric Connection Explorer mission, and electron density from the Constellation Observing Systems for Meteorology, Ionosphere, and Climate mission, the temporal responses of EEJ to the total solar eclipse on 14 December 2020, have been examined. In comparison with non‐eclipse EEJ, EEJ at the eclipse/early post‐eclipse phase is significantly reduced, with a percentage of more than 29%. The reduced EEJ is primarily attributed to both the weakened electric field and the reversed zonal winds. The reversed zonal winds could drive corresponding currents and electric field, indicating the direct and indirect roles. The depleted plasma plays a secondary role in the decrease of EEJ. |
| format | Article |
| id | doaj-art-ecf7ee9d1d484d30bdb7d5f4927d5908 |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2022-12-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-ecf7ee9d1d484d30bdb7d5f4927d59082025-01-14T16:30:23ZengWileySpace Weather1542-73902022-12-012012n/an/a10.1029/2022SW003295The Great Reduction of Equatorial Electrojet During the Solar Eclipse on 14 December 2020Kedeng Zhang0Hui Wang1Department of Space Physics School of Electronic Information Wuhan University Wuhan ChinaDepartment of Space Physics School of Electronic Information Wuhan University Wuhan ChinaAbstract The solar eclipse has a great influence on the variability of the ionosphere because of the obscuration of solar radiation. Using the equatorial electrojet (EEJ) and plasma measurements from Swarm, zonal winds from the Michelson Interferometer for Global High‐resolution Thermospheric Imaging on Ionospheric Connection Explorer mission, and electron density from the Constellation Observing Systems for Meteorology, Ionosphere, and Climate mission, the temporal responses of EEJ to the total solar eclipse on 14 December 2020, have been examined. In comparison with non‐eclipse EEJ, EEJ at the eclipse/early post‐eclipse phase is significantly reduced, with a percentage of more than 29%. The reduced EEJ is primarily attributed to both the weakened electric field and the reversed zonal winds. The reversed zonal winds could drive corresponding currents and electric field, indicating the direct and indirect roles. The depleted plasma plays a secondary role in the decrease of EEJ.https://doi.org/10.1029/2022SW003295 |
| spellingShingle | Kedeng Zhang Hui Wang The Great Reduction of Equatorial Electrojet During the Solar Eclipse on 14 December 2020 Space Weather |
| title | The Great Reduction of Equatorial Electrojet During the Solar Eclipse on 14 December 2020 |
| title_full | The Great Reduction of Equatorial Electrojet During the Solar Eclipse on 14 December 2020 |
| title_fullStr | The Great Reduction of Equatorial Electrojet During the Solar Eclipse on 14 December 2020 |
| title_full_unstemmed | The Great Reduction of Equatorial Electrojet During the Solar Eclipse on 14 December 2020 |
| title_short | The Great Reduction of Equatorial Electrojet During the Solar Eclipse on 14 December 2020 |
| title_sort | great reduction of equatorial electrojet during the solar eclipse on 14 december 2020 |
| url | https://doi.org/10.1029/2022SW003295 |
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