Magnetospheric convection strength inferred from inner edge of the electron plasma sheet and its relation to the polar cap potential drop

Details Magnetospheric convection strength inferred from inner edge of the electron plasma sheet and its relation to the polar cap potential drop Magnetospheric convection strength inferred from inner edge of the electron plasma sheet and its relation to the polar cap potential drop

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm41c1880j&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SM41C-1880

Physics

[2712] Magnetospheric Physics / Electric Fields, [2730] Magnetospheric Physics / Magnetosphere: Inner

Scientific paper

The sharp inner edge of the nightside electron plasma sheet observed by the THEMIS spacecraft is shown to provide a measure of the effective convection strength that transports plasma sheet plasma into the inner magnetosphere. The effective convection strength is characterized by the difference of potential between the magnetopause terminators at dawn and at dusk. We have surveyed inner boundary crossings of the electron plasma sheet measured by three THEMIS probes on orbits from Nov. 2007 to Apr. 2009. The values of the convection electric potential are inferred from the locations of the inner edge for different energy channels using a steady-state drift boundary model with a dipole magnetic field and a Volland-Stern electric field. When plotted against the solar wind electric field ( ), the convection electric potential is found to have a quasi-linear relationship with the driving solar wind electric field for the range of values tested (meaningful statistics only for Esw < 1.5 mV/m). Reasonably good agreement is found between the convection electric potential and the polar-cap potential drop calculated from model of Boyle et al. [1997] when the degree of shielding in the Volland-Stern potential is selected as gamma=1.5.

Affiliated with

Also associated with

No associations

Rating

Magnetospheric convection strength inferred from inner edge of the electron plasma sheet and its relation to the polar cap potential drop does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Magnetospheric convection strength inferred from inner edge of the electron plasma sheet and its relation to the polar cap potential drop, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetospheric convection strength inferred from inner edge of the electron plasma sheet and its relation to the polar cap potential drop will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1472683