Signatures of traveling convection vortices in ground magnetograms under the equatorial electrojet

Details Signatures of traveling convection vortices in ground magnetograms under the equatorial electrojet Signatures of traveling convection vortices in ground magnetograms under the equatorial electrojet

Jun 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jgra..107.1087t&link_type=abstract

Journal of Geophysical Research (Space Physics), Volume 107, Issue A6, pp. SMP 16-1, CiteID 1087, DOI 10.1029/2001JA000153

Physics

1

Magnetospheric Physics: Magnetopause, Cusp, And Boundary Layers, Magnetospheric Physics: Magnetosphere/Ionosphere Interactions, Magnetospheric Physics: Plasma Convection, Magnetospheric Physics: Solar Wind/Magnetosphere Interactions

Scientific paper

Traveling convection vortices (TCVs) are transient events in high-latitude ground magnetograms that can be interpreted as evidence for localized vortical flows in the high-latitude ionosphere. Their centers travel eastward or westward at geomagnetic latitudes near 72° to 74°. TCVs have been attributed to various transient interactions at the magnetopause but also to processes occurring deeper within the magnetosphere. Each interaction mechanism should launch shear Alfvén waves that produce high-latitude ground signatures but also compressional waves that should produce signatures at lower latitudes. Zesta et al. [1999], Moretto et al. [1997], Ridley et al. [1998], and Lühr et al. [1998] report detailed analyses for several high-latitude TCVs. In this paper, we present evidence for corresponding signatures at Belem, São Luis, and Teresina and other stations under or nearby the equatorial electrojet. The equatorial signatures are most pronounced when the high-latitude signatures are (1) longitudinally extended, (2) isolated, and (3) attain greatest amplitudes.

Affiliated with

Also associated with

No associations

Rating

Signatures of traveling convection vortices in ground magnetograms under the equatorial electrojet 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 Signatures of traveling convection vortices in ground magnetograms under the equatorial electrojet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signatures of traveling convection vortices in ground magnetograms under the equatorial electrojet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1213426