Seasonal and clock angle control of the location of flux transfer event signatures at the magnetopause

Details Seasonal and clock angle control of the location of flux transfer event signatures at the magnetopause Seasonal and clock angle control of the location of flux transfer event signatures at the magnetopause

Apr 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012jgra..11704202f&link_type=abstract

Journal of Geophysical Research, Volume 117, Issue A4, CiteID A04202

Physics

Magnetospheric Physics: Magnetic Reconnection (7526, 7835), Magnetospheric Physics: Magnetopause And Boundary Layers, Magnetospheric Physics: Solar Wind/Magnetosphere Interactions

Scientific paper

Most models of flux transfer event (FTE) formation produce pairs of structures which in general move away from the subsolar region and give rise to signatures which can be observed in both the Northern and Southern Hemispheres. The multiple reconnection line (X line) model is unusual as a reconnection-based model that is capable of producing a single flux rope if only two X lines are present. Raeder (2006) reported the results of an MHD simulation where he studied the effect of the Earth's dipole tilt on reconnection at the dayside magnetopause for a southward IMF orientation; in his simulations, flux ropes were formed by the sequential formation of X lines, and when the dipole tilt was set to a value representative of solstice the flux ropes moved preferentially toward the winter hemisphere. Some observational evidence has previously been presented for a bias toward FTE signatures being observed in the winter hemisphere; in this paper, we present further observational evidence for this phenomenon, using an independently derived data set. Once the seasonal bias is taken into account, we find that the IMF clock angle controls the location of FTE signatures. We also find that the effective dipole tilt (combining the geomagnetic dipole tilt with the IMF tilt angle) provides no clear control of the location of FTE signatures.

Affiliated with

Also associated with

No associations

Rating

Seasonal and clock angle control of the location of flux transfer event signatures at the magnetopause 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 Seasonal and clock angle control of the location of flux transfer event signatures at the magnetopause, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seasonal and clock angle control of the location of flux transfer event signatures at the magnetopause will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1118617