Sato, Hiroatsu und Nykiel, Grzegorz und Günzkofer, Florian Ludwig und Kodikara, Timothy und Cahuasqui Llerena, Juan Andres und Hoque, Mohammed Mainul (2025) Altitude Variations in Ionospheric Responses and Prolonged TEC Recovery During the High Latitude Solar Eclipse of 10 June 2021. Journal of Geophysical Research: Space Physics, 130, e2025JA034001. Wiley. doi: 10.1029/2025JA034001. ISSN 2169-9380.
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Offizielle URL: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025JA034001
Kurzfassung
A solar eclipse leads to a local decrease in ionospheric density that generally follows the solar obscuration function, whereas the density recovery phase is often characteristically prolonged after the eclipse ended. By using simultaneous measurements of the European Incoherent Scatter Scientific Association incoherent radar and GNSS during the solar eclipse on 10 June 2021, we study the altitude variation of ionospheric plasma parameters during eclipse-induced depletion and recovery processes in total electron content (TEC). The depletion and recovery profiles of the electron temperature are consistent with the eclipse path across a wide range of F-region altitudes, whereas the electron density at higher altitudes shows delayed responses and persistent depletion after the maximum solar obscuration. We show that this altitude asymmetry causes the eclipse-induced TEC depletion to persist for at least a few hours in the post-eclipse period. Our results indicate that the plasma pressure gradient and subsequent density diffusion account for the delayed response and the persistent density depletion. We also found a concurrent decrease in the thermospheric neutral mass density from in situ satellite measurements which may further prolong the TEC recovery time.
elib-URL des Eintrags: | https://elib.dlr.de/215953/ | ||||||||||||||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||||||||||||||
Titel: | Altitude Variations in Ionospheric Responses and Prolonged TEC Recovery During the High Latitude Solar Eclipse of 10 June 2021 | ||||||||||||||||||||||||||||
Autoren: |
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Datum: | 18 August 2025 | ||||||||||||||||||||||||||||
Erschienen in: | Journal of Geophysical Research: Space Physics | ||||||||||||||||||||||||||||
Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
Open Access: | Ja | ||||||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||||||
In SCOPUS: | Ja | ||||||||||||||||||||||||||||
In ISI Web of Science: | Ja | ||||||||||||||||||||||||||||
Band: | 130 | ||||||||||||||||||||||||||||
DOI: | 10.1029/2025JA034001 | ||||||||||||||||||||||||||||
Seitenbereich: | e2025JA034001 | ||||||||||||||||||||||||||||
Verlag: | Wiley | ||||||||||||||||||||||||||||
ISSN: | 2169-9380 | ||||||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||||||
Stichwörter: | Solar Eclipse, Ionosphere, GNSS, TEC, EISCAT | ||||||||||||||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||||||||||||||
HGF - Programmthema: | Erdbeobachtung | ||||||||||||||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||||||||||||||
DLR - Forschungsgebiet: | R EO - Erdbeobachtung | ||||||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Solar-Terrestrische Physik SO, R - Solar-Terrestrische Kopplungsprozesse | ||||||||||||||||||||||||||||
Standort: | Neustrelitz | ||||||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Solar-Terrestrische Physik Institut für Solar-Terrestrische Physik > Solar-Terrestrische Kopplungsprozesse Institut für Solar-Terrestrische Physik > Weltraumwetterbeobachtung | ||||||||||||||||||||||||||||
Hinterlegt von: | Sato, Hiroatsu | ||||||||||||||||||||||||||||
Hinterlegt am: | 22 Sep 2025 09:54 | ||||||||||||||||||||||||||||
Letzte Änderung: | 30 Sep 2025 11:40 |
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