Deutsch
 
Datenschutzhinweis Impressum
  DetailsucheBrowse

Datensatz

 
 
DownloadE-Mail
  Global Characteristics of Improved Interhemispheric Field‐Aligned Currents and of F‐Region Meridional Currents Observed by the Swarm Dual‐Spacecraft

Wang, F., Lühr, H., Xiong, C., Park, J., Zhou, Y. (2023): Global Characteristics of Improved Interhemispheric Field‐Aligned Currents and of F‐Region Meridional Currents Observed by the Swarm Dual‐Spacecraft. - Journal of Geophysical Research: Space Physics, 128, 2, e2022JA031096.
https://doi.org/10.1029/2022JA031096

Item is

Dateien

einblenden: Dateien
ausblenden: Dateien
:
5017634.pdf (Verlagsversion), 5MB
Name:
5017634.pdf
Beschreibung:
-
Sichtbarkeit:
Öffentlich
MIME-Typ / Prüfsumme:
application/pdf / [MD5]
Technische Metadaten:
Copyright Datum:
-
Copyright Info:
-
Lizenz:
-

Externe Referenzen

einblenden:

Urheber

einblenden:
ausblenden:
 Urheber:
Wang, Fengjue1, Autor
Lühr, H.2, Autor              
Xiong, Chao1, Autor
Park, Jaeheung1, Autor
Zhou, Yunliang1, Autor
Affiliations:
1External Organizations, ou_persistent22              
22.3 Geomagnetism, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum, ou_146030              

Inhalt

einblenden:
ausblenden:
Schlagwörter: -
 Zusammenfassung: The Swarm satellite constellation provides an excellent opportunity to explore ionospheric current systems. In this study, we have reanalyzed the ionospheric currents derived by the Swarm dual-satellite approach, to investigate the characteristic of inter-hemispheric field-aligned currents (IHFAC). One major improvement is that the influence of the ambient magnetic field on the IHFAC intensity has been taken into account, and the derived IHFAC densities are normalized to their ionospheric E-region footprints. In addition, we have extended the analysis to the middle latitudes within ±60° MLat, which show IHFAC features different from those at low latitudes. For the first time the tidal features at mid-latitudes are studied. They are dominated by longitudinal wave-1 and wave-2 patterns. A superposition of these tidal components reflects a confinement of the IHFAC tidal modulation to daytime in the western hemisphere. The tidal signatures at middle latitudes are better organized in universal time than in local time. The strongest IHFACs are appearing around 18–19 UT, near noon in the American sector. This is related to the overlap with the South Atlantic Anomaly. For the first time we define and analyze the F-region meridional currents (FMC), interpreting the remaining part of the ionospheric radial current (IRC), which is not covered by IHFAC. The mean FMCs are found to be highly symmetric with respect to the magnetic equator and only amounts to one-third or half of the IHFAC density, however, they show neither typical longitudinal, diurnal variations, or tidal signatures.

Details

einblenden:
ausblenden:
Sprache(n):
 Datum: 2023-02-132023
 Publikationsstatus: Final veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: DOI: 10.1029/2022JA031096
GFZPOF: p4 T3 Restless Earth
 Art des Abschluß: -

Veranstaltung

einblenden:

Entscheidung

einblenden:

Projektinformation

einblenden:

Quelle 1

einblenden:
ausblenden:
Titel: Journal of Geophysical Research: Space Physics
Genre der Quelle: Zeitschrift, SCI, Scopus
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 128 (2) Artikelnummer: e2022JA031096 Start- / Endseite: - Identifikator: ISSN: 2169-9380
ISSN: 2169-9402
CoNE: https://gfzpublic.gfz-potsdam.de/cone/journals/resource/jgr_space_physics
Publisher: American Geophysical Union (AGU)
Publisher: Wiley