Spatial and temporal structure of a high-latitude transient ULF pulsation

Details Spatial and temporal structure of a high-latitude transient ULF pulsation Spatial and temporal structure of a high-latitude transient ULF pulsation

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985p%26ss...33..159a&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 33, Feb. 1985, p. 159-173.

Computer Science

18

Extremely Low Frequencies, Geomagnetic Pulsations, Geos 2 Satellite, Magnetohydrodynamic Waves, Magnetometers, Plasma Density, Plasma Drift, Scandinavia, Traveling Waves

Scientific paper

Auroral radar observations of transient ULF pulsations with latitudinally varying periods are reported. A comparative study of the properties of an event of this type is carried out by supplementing STARE results with data from the Scandinavian Magnetometer Array and instruments on the GEOS-2 satellite. The magnetometers show long period (about 450 s) oscillations at about 66 deg geomagnetic latitude and higher, corresponding to the long-period STARE pulsations, and confirm that the geomagnetic field shells resonate in effectively the fundamental toroidal mode at their individual eigenperiods. There is also a short-period component (about 250 s) which is localized south of 66 deg geomagnetic latitude. Measurements at GEOS-2 show short-period (about 250 s) impulsively stimulated pulsations. The wave fields at GEOS-2 imply that the satellite is earthward of a localized toroidal standing-wave resonance, which enters the ionosphere at least one degree lower than predicted by standard field models. A plasma mass density profile in the equatorial plane is deduced and shows a radially increasing density near GEOS-2 and a radially decreasing density outside the satellite position.

Affiliated with

Also associated with

No associations

Rating

Spatial and temporal structure of a high-latitude transient ULF pulsation 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 Spatial and temporal structure of a high-latitude transient ULF pulsation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatial and temporal structure of a high-latitude transient ULF pulsation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1594226