Ionospheric Convection Response to High-Latitude Reconnection: Cluster and SuperDARN Observations

Details Ionospheric Convection Response to High-Latitude Reconnection: Cluster and SuperDARN Observations Ionospheric Convection Response to High-Latitude Reconnection: Cluster and SuperDARN Observations

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmsm13c..07e&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #SM13C-07

Physics

2431 Ionosphere/Magnetosphere Interactions (2736), 2463 Plasma Convection (2760), 2706 Cusp, 2723 Magnetic Reconnection (7526, 7835), 2724 Magnetopause And Boundary Layers

Scientific paper

High-latitude reconnection tailward of the cusps is predicted to occur during northward IMF. Northward IMF conditions are also regarded favorable in generating convection patterns that deviate from the classical 2-cell system in the polar cap ionosphere. We here present evidence in favor of this scenario on the basis of Cluster and SuperDARN joint observations on 14 February 2003 when Cluster traversed the high-latitude region of the northern cusp into the magnetosheath. The IMF measured by Cluster in the magnetosheath is Bx<0, By>0, Bz>0 and By>Bz. As predicted during positive IMF By and Bz, the SuperDARN radars observe enhanced sunward and dawnward convective flow across the noon meridian at the Cluster footprint. The enhanced ion velocity observed simultaneously at Cluster is also directed sunward and dawnward with a dominant convective component in the dawnward direction. The ion velocity at Cluster satisfies the shear-stress balance test and suggests a lobe reconnection site tailward and duskward of Cluster in agreement with the results of an MHD simulation performed during this event.

Affiliated with

Also associated with

No associations

Rating

Ionospheric Convection Response to High-Latitude Reconnection: Cluster and SuperDARN Observations 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 Ionospheric Convection Response to High-Latitude Reconnection: Cluster and SuperDARN Observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ionospheric Convection Response to High-Latitude Reconnection: Cluster and SuperDARN Observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-760201