Shock profile analysis using wavelet transform

Details Shock profile analysis using wavelet transform Shock profile analysis using wavelet transform

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998jgr...103.6503g&link_type=abstract

Journal of Geophysical Research, Volume 103, Issue A4, p. 6503-6512

Physics

Plasma Physics

4

Interplanetary Physics: Interplanetary Magnetic Fields, Interplanetary Physics: Interplanetary Shocks, Interplanetary Physics: Solar Wind Plasma, Space Plasma Physics: Shock Waves

Scientific paper

We study the fine structure of the collisionless shock front, paying particular attention to the large gradients and internal structure within the ramp and to quasiperiodic structures in the ramp vicinity. In order to separate random steep gradients with low amplitudes from steep large-amplitude formations, we apply Gaussian wavelet transforms suitable for this task. We analyze several high Mach number shocks and show that ramp substructure is not uncommon and that the typical scales of the steepest gradient features are significantly smaller than the shock transition width (provided they are stationary in the shock frame). We apply the Morlet wavelet transform to the magnetic field data in order to identify quasiperiodic patterns which may last only several periods. It is likely that short quasiperiodic wave trains dominate in the wave activity. Such wave trains are not always associated with the ramp itself.

Affiliated with

Also associated with

No associations

Rating

Shock profile analysis using wavelet transform 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 Shock profile analysis using wavelet transform, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock profile analysis using wavelet transform will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1604878