Magnetic field changes at the neutral sheet associated with substorm expansion onset: A model prediction and observations

Details Magnetic field changes at the neutral sheet associated with substorm expansion onset: A model prediction and observations Magnetic field changes at the neutral sheet associated with substorm expansion onset: A model prediction and observations

Mar 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgr...100.3521n&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 100, no. A3, p. 3521-3530

Physics

4

Geomagnetic Tail, Magnetic Dipoles, Magnetic Fields, Magnetic Storms, Mathematical Models, Neutral Sheets, Comparison, Current Distribution, Data Correlation, Distribution Functions

Scientific paper

Using a simple numerical model of the magnetotail current system, substorm-associated changes in the large-scale distribution of the neutral sheet current and the corresponding magnetic field at the neutral sheet are examined. In the current model it is assumed that the radial gradient of the neutral sheet current at the late expansion phase of substorms is steeper than that just prior to the expansion onset. It is shown that our current model can successfully reproduce the observed characteristics of the so-called magnetic field dipolarization in the near-Earth magnetotail. Comparing various satellite observations with what our current model predicts, the location of the substorm initiation and the propagation of the magnetic field dipolarization is discussed. It is discussed that there are at least three distinct types of the radial distribution of the neutral sheet current, depending on magnetospheric conditions; quiet times, just prior to substorm expansion onset, and near the end of the expansion phase (or the beginning of the recovery phase) of substorms.

Affiliated with

Also associated with

No associations

Rating

Magnetic field changes at the neutral sheet associated with substorm expansion onset: A model prediction and observations 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 Magnetic field changes at the neutral sheet associated with substorm expansion onset: A model prediction and observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic field changes at the neutral sheet associated with substorm expansion onset: A model prediction and observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-844833