Borries, Claudia und Iochem, Pelin und Wissing, Jan Maik (2025) Persistent solar wind driving of the high-latitude ionosphere during winter night conditions. IAGA/IASPEI Joint Scientific Meeting 2025, 2025-08-31 - 2025-09-05, Lisbon, Portugal.
![]() |
PDF
- Nur DLR-intern zugänglich
2MB |
Kurzfassung
The modelling and prediction of ionospheric storm effects driven by solar wind are still a challenge for the research community. Recently, it has been shown that there exists a persistent modulation of the high-latitude ionosphere with the solar wind variability. Here, we are investigating the potential source mechanisms of the persistent ionosphere modulation during winter night conditions. We us a set of ionosphere observations (EISCAT, IGS Total Electron Content, Tromso ionosonde) as well as AISstorm, a high-resolution numerical model that simulates atmospheric ionization rates caused by precipitating particles. For the approximation of the solar wind energy into the Earth system, we compute the Kan-Lee merging electric field Em provided by OMNI. We studying the correlation and time lag between the variability of Em and the ionospheric parameters and characterize the spatial extent of the regions with highest solar wind correlations. A correlation of ionospheric parameters and Em is present in both, the E- and F-region during winter night condition. The time lag in the E-region (45-90 minutes) is smaller than in the F-region (90-135 minutes). Both, precipitation effects and plasma convection can be observed during the EISCAT campaigns. The region with the highest correlation extends along the auroral oval. The temporal and spatial occurrence agrees well with the occurrence of E- and F-region precipitation reproduced by AISstorm. We conclude that both, precipitation and plasma convection effects, are major contributors to the modulation of the high-latitude ionosphere observations with solar wind variability.
elib-URL des Eintrags: | https://elib.dlr.de/216471/ | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dokumentart: | Konferenzbeitrag (Vortrag) | ||||||||||||||||
Titel: | Persistent solar wind driving of the high-latitude ionosphere during winter night conditions | ||||||||||||||||
Autoren: |
| ||||||||||||||||
Datum: | 1 September 2025 | ||||||||||||||||
Referierte Publikation: | Nein | ||||||||||||||||
Open Access: | Nein | ||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | ionosphere, space weather, thermosphere, solar wind | ||||||||||||||||
Veranstaltungstitel: | IAGA/IASPEI Joint Scientific Meeting 2025 | ||||||||||||||||
Veranstaltungsort: | Lisbon, Portugal | ||||||||||||||||
Veranstaltungsart: | internationale Konferenz | ||||||||||||||||
Veranstaltungsbeginn: | 31 August 2025 | ||||||||||||||||
Veranstaltungsende: | 5 September 2025 | ||||||||||||||||
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 Kopplungsprozesse, R - Solar-Terrestrische Physik SO | ||||||||||||||||
Standort: | Neustrelitz | ||||||||||||||||
Institute & Einrichtungen: | Institut für Solar-Terrestrische Physik > Solar-Terrestrische Kopplungsprozesse Institut für Solar-Terrestrische Physik | ||||||||||||||||
Hinterlegt von: | Borries, Dr. Claudia | ||||||||||||||||
Hinterlegt am: | 22 Sep 2025 10:19 | ||||||||||||||||
Letzte Änderung: | 22 Sep 2025 10:19 |
Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags