Time-dependent mapping of storm-time magnetospheric ring-current structure

Details Time-dependent mapping of storm-time magnetospheric ring-current structure Time-dependent mapping of storm-time magnetospheric ring-current structure

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agufmgp31a0065l&link_type=abstract

American Geophysical Union, Fall Meeting 2005, abstract #GP31A-0065

Other

1530 Rapid Time Variations, 2721 Field-Aligned Currents And Current Systems (2409), 2756 Planetary Magnetospheres (5443, 5737, 6033), 2778 Ring Current, 2788 Magnetic Storms And Substorms (7954)

Scientific paper

Magnetometer data from approximately 40 mid-latitude ground-based magnetic observatories are used to study the time-dependent structure of the magnetospheric ring current during two large storms in October and November of 2003. After making adjustments for observatory latitude and subtracting quite-time variation, an equivalent equatorial ring current that varies in intensity as a function of longitude is derived by fitting the magnetometer data to a truncated Fourier series. Storm-time variations of the ring current are derived with a continuous temporal series of such fittings. Final results are displayed as a movie, which illuminates the dynamic, time-dependent evolution of the ring current over the duration of each storm. Significant longitudinal asymmetry is seen during the main phases of both storms, with more symmetry seen during the recovery phases On the other hand, the two storms show pronounced differences in ring-current structure during their initial onsets. Comparisons are made with the traditional ring-current measures of Dst and Asym; preliminary comparisons are also made with space-based data and the magnetic-field signatures of field-aligned currents.

Affiliated with

Also associated with

No associations

Rating

Time-dependent mapping of storm-time magnetospheric ring-current structure 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 Time-dependent mapping of storm-time magnetospheric ring-current structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-dependent mapping of storm-time magnetospheric ring-current structure will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-751973