Spatiotemporal variability and propagation of equatorial noise observed by Cluster

Details Spatiotemporal variability and propagation of equatorial noise observed by Cluster Spatiotemporal variability and propagation of equatorial noise observed by Cluster

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jgra..107.1495s&link_type=abstract

Journal of Geophysical Research (Space Physics), Volume 107, Issue A12, pp. SMP 43-1, CiteID 1495, DOI 10.1029/2001JA009159

Physics

13

Radio Science: Magnetospheric Physics, Magnetospheric Physics: Magnetosphere-Inner, Magnetospheric Physics: Plasma Waves And Instabilities, Magnetospheric Physics: Plasmasphere, Magnetospheric Physics: Instruments And Techniques

Scientific paper

We report a multipoint case study of the electromagnetic equatorial noise observed by the Cluster project. High-resolution data were measured in three close points in space located in the morning sector of the outer plasmasphere. We demonstrate a narrow latitudinal extent of the emissions with a typical width of 2°, centered near the minimum-B equator. Power spectra recorded by the different satellites show a complex structure of emission lines whose relative intensities and positions vary at timescales of 1-2 min and/or at spatial scales of tens of wavelengths. These lines do not match harmonics of the local proton cyclotron frequency, as it would be expected if the waves are generated by energetic ions and observed near the source region. We bring observational evidence that the waves propagate with a significant radial component and thus can propagate from a distant generation region located at different radial distances where ion cyclotron frequencies match the observed fine structure.

Affiliated with

Also associated with

No associations

Rating

Spatiotemporal variability and propagation of equatorial noise observed by Cluster 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 Spatiotemporal variability and propagation of equatorial noise observed by Cluster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spatiotemporal variability and propagation of equatorial noise observed by Cluster will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-967580