Plasma density enhancements associated with regions of equatorial plasma density depletions observed by the low-altitude ROCSAT-1 spacecraft at 600 km altitude

Details Plasma density enhancements associated with regions of equatorial plasma density depletions observed by the low-altitude ROCSAT-1 spacecraft at 600 km altitude Plasma density enhancements associated with regions of equatorial plasma density depletions observed by the low-altitude ROCSAT-1 spacecraft at 600 km altitude

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsa41a..07l&link_type=abstract

American Geophysical Union, Spring Meeting 2002, abstract #SA41A-07

Physics

2467 Plasma Temperature And Density, 2415 Equatorial Ionosphere, 2439 Ionospheric Irregularities, 2443 Midlatitude Ionosphere

Scientific paper

Large-scale plasma density depletions are typically associated with equatorial spread F (ESF) plasma irregularities in the nightside F region, especially in the post-sunset sector. Data from the Ionospheric Plasma and Electrodynamics Instrument (IPEI) onboard the ROCSAT-1 spacecraft reveal numerous cases of localized, discrete plasma density enhancements associated with regions of regular ESF plasma density depletion structures at 600 km altitude. Within these discrete regions, the plasma density may be enhanced by ~ 2-3 times above the background density. The density enhancement regions have sharp, distinct edges and appear to have similar scale sizes as plasma density depletions. They generally occur at edges of the regular plasma depletion region, poleward in latitudes and either earlier or later in local times. In all of the cases we examined so far, they occur in local times at least three-hours after the sunset. The ion velocity data within the density enhancement regions show upward plasma drifts perpendicular to the magnetic field, similar to those within adjacent plasma depletion regions. The magnetic field-aligned plasma flows are generally poleward within the density enhancement regions. We present observational characteristics of the density enhancements and discuss possible mechanisms in this paper.

Affiliated with

Also associated with

No associations

Rating

Plasma density enhancements associated with regions of equatorial plasma density depletions observed by the low-altitude ROCSAT-1 spacecraft at 600 km altitude 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 Plasma density enhancements associated with regions of equatorial plasma density depletions observed by the low-altitude ROCSAT-1 spacecraft at 600 km altitude, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plasma density enhancements associated with regions of equatorial plasma density depletions observed by the low-altitude ROCSAT-1 spacecraft at 600 km altitude will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1722389