Nigussie, Melessew und Jakowski, Norbert und Hoque, Mohammed Mainul (2022) Characterization and Climatological Modeling of Equatorial Ionization Anomaly (EIA) Crest Position. Journal of Geophysical Research: Space Physics, 127, Seiten 1-10. Wiley. doi: 10.1029/2022JA030798. ISSN 2169-9380.
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Kurzfassung
The Equatorial Ionization Anomaly (EIA) is characterized by strong ionospheric gradients that complicate ionospheric modeling and mitigation of ionospheric impact on Global Navigation Satellite System applications. In this study, the variation of EIA crest locations as a function of longitude and solar radio flux index F10.7 has been derived and modeled. Seven years (2013–2019) of ionospheric NmF2 and insitu ion density data from Constellation Observing System for Meteorology Ionosphere and Climate and Swarm-A satellites have been used. We find that the distance between the northern and southern crest of EIA grows slightly with increase of solar flux. The position of the crests of EIA follows a wave number 4 structure with peak values at around −130°, 0°, and 100°E. At the altitude of Swarm-A (about 460 km), the equatorial crests are found closer to the geomagnetic dip equator than they are at the peak density height hmF2 (about 310 km) which may be due to the spatial variations of geomagnetic field strength. Accordingly, two Crest Position climatological Models have been developed, one for the F2 Peak height (CPM-F2P) and the other one for Swarm-A height (CPM-SAH).
elib-URL des Eintrags: | https://elib.dlr.de/191629/ | ||||||||||||||||
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Dokumentart: | Zeitschriftenbeitrag | ||||||||||||||||
Titel: | Characterization and Climatological Modeling of Equatorial Ionization Anomaly (EIA) Crest Position | ||||||||||||||||
Autoren: |
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Datum: | November 2022 | ||||||||||||||||
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: | 127 | ||||||||||||||||
DOI: | 10.1029/2022JA030798 | ||||||||||||||||
Seitenbereich: | Seiten 1-10 | ||||||||||||||||
Verlag: | Wiley | ||||||||||||||||
ISSN: | 2169-9380 | ||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||
Stichwörter: | ionosphere, Equatorial Ionization Anomaly (EIA), crest, Electron density, total electron content | ||||||||||||||||
HGF - Forschungsbereich: | Luftfahrt, Raumfahrt und Verkehr | ||||||||||||||||
HGF - Programm: | Raumfahrt | ||||||||||||||||
HGF - Programmthema: | Kommunikation, Navigation, Quantentechnologien | ||||||||||||||||
DLR - Schwerpunkt: | Raumfahrt | ||||||||||||||||
DLR - Forschungsgebiet: | R KNQ - Kommunikation, Navigation, Quantentechnologie | ||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | R - Ionosphäre | ||||||||||||||||
Standort: | Neustrelitz | ||||||||||||||||
Institute & Einrichtungen: | Institut für Solar-Terrestrische Physik | ||||||||||||||||
Hinterlegt von: | Jakowski, Dr.rer.nat. Norbert | ||||||||||||||||
Hinterlegt am: | 05 Dez 2022 12:28 | ||||||||||||||||
Letzte Änderung: | 09 Feb 2024 08:20 |
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