Physics – Geophysics
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009jgra..11405217h&link_type=abstract
Journal of Geophysical Research, Volume 114, Issue A5, CiteID A05217
Physics
Geophysics
7
Magnetospheric Physics: Mhd Waves And Instabilities (2149, 6050, 7836), Magnetospheric Physics: Magnetosheath, Magnetospheric Physics: Instruments And Techniques, Nonlinear Geophysics: Nonlinear Waves, Shock Waves, Solitons (0689, 2487, 3280, 3285, 4275, 6934, 7851, 7852)
Scientific paper
Information about the size, shape, and orientation of mirror mode structures in the magnetosheath is obtained by combining data from the four Cluster spacecraft, resulting in an estimate of the form of the magnetic field magnitude spatial autocorrelation function. It is shown that the longest direction of the structures is typically inclined at around 30° from the local magnetic field direction, consistent with predictions based on linear growth theory; their smallest size is also consistent with these predictions. The ratio of the longest to shortest scales of the structures is typically 2-6, with some evidence for this value to decrease as the structures are carried downstream. This suggests that the mirror modes are generated as long structures, but gradually become isotropic, possibly as part of their nonlinear growth. In common with earlier work, we find that the direction in which the structures are shortest is typically well aligned with the local magnetopause normal, consistent with compression against this boundary. However, the maximum variance direction is not a good proxy for the long axis of the structures, typically lying around 25° from it.
Horbury Tim S.
Lucek Elisabeth A.
No associations
LandOfFree
Size, shape, and orientation of magnetosheath mirror mode structures 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 Size, shape, and orientation of magnetosheath mirror mode structures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Size, shape, and orientation of magnetosheath mirror mode structures will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-814184