The temporal evolution of the ionospheric signatures of subauroral ion drifts

Details The temporal evolution of the ionospheric signatures of subauroral ion drifts The temporal evolution of the ionospheric signatures of subauroral ion drifts

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992p%26ss...40..663m&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 40, no. 5, May 1992, p. 663-670.

Physics

16

Auroral Zones, F Region, Ion Temperature, Ionospheric Ion Density, Oxygen Ions, Plasma Drift, Molecular Ions, Plasmasphere, Positive Ions

Scientific paper

The effects of an imposed westward plasma drift on O(+) and molecular ion behavior in the nightside ionosphere are investigated using a model of the ionosphere and plasmasphere. A closed subauroral tube of the plasma is considered, and the velocity input persists for 30 min. The rapid increase in the F-region ion temperature resulting from ion-neutral frictional heating causes an immediate surge in the O(+) field-aligned velocity, upwards in the topside ionosphere and downwards below the F2-peak, but after about 10 min into the event the surge in the topside disappears. After the event there is a return flow of O(+) from the plasmasphere. The relative abundance of O(+) decreases during the event due to the increased rate of conversion of O(+) into NO(+) and O2(+); the decrease is more marked for greater values of the imposed westward ion drift. The implications of these results for satellite observations of subauroral ion drifts events and on EISCAT incoherent scatter radar observations of ion heating events is discussed.

Affiliated with

Also associated with

No associations

Rating

The temporal evolution of the ionospheric signatures of subauroral ion drifts 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 temporal evolution of the ionospheric signatures of subauroral ion drifts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The temporal evolution of the ionospheric signatures of subauroral ion drifts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1518986