The ionospheric signature of transient dayside reconnection and the associated pulsed convection return flow

Details The ionospheric signature of transient dayside reconnection and the associated pulsed convection return flow The ionospheric signature of transient dayside reconnection and the associated pulsed convection return flow

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999angeo..17.1166m&link_type=abstract

Annales Geophysicae, vol. 17, Issue 9, pp.1166-1171

Physics

9

Scientific paper

Three SuperDARN coherent HF radars are employed to investigate the excitation of convection in the dayside high-latitude ionosphere in response to transient reconnection occurring in the cusp region. This study demonstrates the existence of transient antisunward-propagating backscatter features at the expected location of the ionospheric footprint of the cusp region, which have a repetition rate near 10 min. These are interpreted as the ionospheric signature of flux transfer events. Moreover, transient sunward-propagating regions of backscatter are observed in the convection return flow regions of both the pre- and post-noon sectors. These patches are observed to propagate towards the noon sector from at least as far around the auroral zone as 07 MLT in the pre-noon sector and 17 MLT in the post-noon sector, travelling with a velocity of approximately 1.5 to 2 km s-1. These return flow patches have a repetition rate similar to that of the transient features observed at local noon. While providing supporting evidence for the impulsive nature of convection flow, the observation of sunward-propagating features in the return flow region is not consistent with current conceptual models of the excitation of convection.

Affiliated with

Also associated with

No associations

Rating

The ionospheric signature of transient dayside reconnection and the associated pulsed convection return flow 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 The ionospheric signature of transient dayside reconnection and the associated pulsed convection return flow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The ionospheric signature of transient dayside reconnection and the associated pulsed convection return flow will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1768491