Conjugate observations of traveling convection vortices: The field-aligned current system

Details Conjugate observations of traveling convection vortices: The field-aligned current system Conjugate observations of traveling convection vortices: The field-aligned current system

Oct 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jgra..107.1306m&link_type=abstract

Journal of Geophysical Research (Space Physics), Volume 107, Issue A10, pp. SIA 14-1, CiteID 1306, DOI 10.1029/2002JA009456

Physics

Space Physics

3

Ionosphere: Current Systems (2708), Ionosphere: Ionosphere/Magnetosphere Interactions (2736), Ionosphere: Ionospheric Disturbances, Ionosphere: Plasma Convection

Scientific paper

Analysis of a single traveling convection vortex (TCV) event that combines magnetometer, auroral imager, and riometer observations from conjugate hemispheres provides a complete view of the field-aligned current (FAC) system associated with the TCV. Conjugate observations clearly show that the TCV is a pair of FACs that flow alternatively out of and then into both ionospheres. Imaging observations at 427.8 nm indicate that the upward FAC region is associated with a narrow arc 50-100 km wide and at least 600 km long. Mapping the imaging observations made in the Southern Hemisphere to the Northern Hemisphere shows excellent collocation of the precipitation with the flow vortex associated with the upward FAC as inferred from a large two-dimensional network of magnetometers. Also consistent with the flows inferred from the magnetometers, the arc is found to be skewed with respect to the direction of motion of the transient. Low-altitude spacecraft passes near the time of the event suggest that the FAC is coincident with, and possibly confined to, a relatively narrow region (less than 3° in latitude) in which 1-10 keV electrons characteristic of the central plasma sheet are present.

Affiliated with

Also associated with

No associations

Rating

Conjugate observations of traveling convection vortices: The field-aligned current system 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 Conjugate observations of traveling convection vortices: The field-aligned current system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Conjugate observations of traveling convection vortices: The field-aligned current system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1425773