Azimuthal propagation of Pc5 geomagnetic field pulsations in the southern polar cap

Details Azimuthal propagation of Pc5 geomagnetic field pulsations in the southern polar cap Azimuthal propagation of Pc5 geomagnetic field pulsations in the southern polar cap

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011adspr..47..966l&link_type=abstract

Advances in Space Research, Volume 47, Issue 6, p. 966-977.

Physics

Scientific paper

A statistical analysis of low frequency geomagnetic fluctuations at the two Antarctic stations Mario Zucchelli Station (geographic coordinates: 74.7°S, 164.1°E; corrected geomagnetic coordinates: 80.0°S, 306.8°E) and Dumont D’Urville (geographic coordinates: 66.7°S, 140.0°E; corrected geomagnetic coordinates: 80.4°S, 236.0°E) is shown. The analysis focuses on power spectra, coherence and phase difference between the stations, which are both located in the polar cap, with a 5-h magnetic local time displacement along a geomagnetic parallel; in this situation, the phase difference between geomagnetic fluctuations indicates the direction of their azimuthal propagation. Coherent fluctuations have been found to occur preferably when both stations are on the same side (dawnward or duskward) with respect to the polar cusp; moreover, around local magnetic midnight, they occur essentially during open magnetospheric conditions. The phase difference for coherent fluctuations indicates a propagation direction away from local geomagnetic noon and midnight. Also the analysis of three individual pulsation events, occurring at different times during the day, is shown; they are characterized at the two stations by simultaneous, coherent fluctuations, whose phase difference finds correspondence with the statistical behaviour.

Affiliated with

Also associated with

No associations

Rating

Azimuthal propagation of Pc5 geomagnetic field pulsations in the southern polar cap 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 Azimuthal propagation of Pc5 geomagnetic field pulsations in the southern polar cap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Azimuthal propagation of Pc5 geomagnetic field pulsations in the southern polar cap will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1183584