Scaling of electric field fluctuations associated with the aurora during northward IMF

Details Scaling of electric field fluctuations associated with the aurora during northward IMF Scaling of electric field fluctuations associated with the aurora during northward IMF

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3320109k&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 20, CiteID L20109

Physics

Geophysics

8

Ionosphere: Electric Fields (2712), Ionosphere: Polar Cap Ionosphere, Mathematical Geophysics: Time Series Analysis (1872, 4277, 4475), Nonlinear Geophysics: Scaling: Spatial And Temporal (1872, 3270, 4277), Nonlinear Geophysics: Turbulence (3379, 4568, 7863)

Scientific paper

We present a statistical study of scaling features of the electric field fluctuations measured by the DE2 satellite in the polar region during positive Bz IMF when the theta-aurora was observed by the DE1 satellite. It is demonstrated that the power spectra of the fluctuations have a power-law form at spatial scales from ~0.5 km (the limit of resolution) to several thousands of kilometers, with a break near 100 km. The scaling properties of the field are studied by examining the generalized structure functions (GSFs) and probability density functions (PDFs) of the fluctuations. The observed PDFs have a non-Gaussian shape with heavy tails. We also demonstrate a collapse of the re-scaled PDFs onto a single curve. A relation of PDF shape to solar wind conditions is revealed. The same analysis is performed on the TV observations of the theta-aurora. The scaling characteristics of the field and auroral fluctuations are compared.

Affiliated with

Also associated with

No associations

Rating

Scaling of electric field fluctuations associated with the aurora during northward IMF 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 Scaling of electric field fluctuations associated with the aurora during northward IMF, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scaling of electric field fluctuations associated with the aurora during northward IMF will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-906959