Bibliography



Notice:

  • Clicking on the DOI link will open a new window with the original bibliographic entry from the publisher.
  • Clicking on a single author will show all publications by the selected author.
  • Clicking on a single keyword, will show all publications by the selected keyword.




Magnetic activity dependence of the electric drift below L=3


AuthorLejosne, ène; Mozer, F.;
Keywordselectric drift; electric field; Inner radiation belt; ionospheric disturbance dynamo; plasmasphere; subcorotation; Van Allen Probes
AbstractMore than two years of magnetic and electric field measurements by the Van Allen Probes are analyzed with the objective of determining the average effects of magnetic activity on the electric drift below L=3. The study finds that an increase in magnetospheric convection leads to a decrease in the magnitude of the azimuthal component of the electric drift, especially in the night-side. The amplitude of the slowdown is a function of L, local time MLT, and Kp, in a pattern consistent with the storm-time dynamics of the ionosphere and thermosphere. To a lesser extent, magnetic activity also alters the average radial component of the electric drift below L=3. A global picture for the average variations of the electric drift with Kp is provided as a function of L and MLT. It is the first time that the signature of the ionospheric disturbance dynamo is observed in near-equatorial electric drift measurements.
Year of Publication2018
JournalGeophysical Research Letters
Volume
Number of Pages
Section
Date Published04/2018
ISBN
URLhttps://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018GL077873
DOI10.1029/2018GL077873