Swarm Observations of Field Aligned Currents during Geomagnetic Storms - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2015

Swarm Observations of Field Aligned Currents during Geomagnetic Storms

B. J. Anderson
  • Fonction : Auteur
R. J. Strangeway
  • Fonction : Auteur
C. T. Russell
  • Fonction : Auteur
J. A. Slavin
  • Fonction : Auteur
F. Plaschke
W. Magnes
D. Fischer
  • Fonction : Auteur
R. Nakamura
H. K. Leinweber
  • Fonction : Auteur
R. B. Torbert
  • Fonction : Auteur
Olivier Le Contel
D. M. Oliveira
  • Fonction : Auteur
L. Kepko
  • Fonction : Auteur

Résumé

Field-aligned currents connect the Earth's magnetosphere to the high latitude ionosphere, and provide a main channel for energy transfer from the magnetosphere to the ionosphere. They are driven by solar wind-magnetosphere interactions and respond dynamically to changes in the solar wind and interplanetary magnetic field. Enhanced interaction during geomagnetic storms significantly intensifies their strength and variability. In this paper, we review our recent observations of field-aligned currents (FACs) during geomagnetic storms using observations from polar orbiting Swarm constellation as well as the Active Magnetosphere and Polar Electrodynamics Response Experiment (AMPERE). Both temporal resolutions and spatial coverage of these observations provide new insights in understanding the FACs and the magnetosphere-ionosphere coupling. We will discuss their spatial and temporal evolutions, ionospheric closure currents, and hemispheric asymmetry during storms.
Fichier non déposé

Dates et versions

hal-02752340 , version 1 (03-06-2020)

Identifiants

  • HAL Id : hal-02752340 , version 1

Citer

G. Le, H. Lühr, B. J. Anderson, R. J. Strangeway, C. T. Russell, et al.. Swarm Observations of Field Aligned Currents during Geomagnetic Storms. American Geophysical Union, Fall Meeting, Dec 2015, San Francisco, California, United States. pp.SM11A-06. ⟨hal-02752340⟩
18 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More