Peculiarities of the outer radiation belt dynamics during the strong magnetic storm of May 15, 2005

Details Peculiarities of the outer radiation belt dynamics during the strong magnetic storm of May 15, 2005 Peculiarities of the outer radiation belt dynamics during the strong magnetic storm of May 15, 2005

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007ge%26ae..47..696t&link_type=abstract

Geomagnetism and Aeronomy, Volume 47, Issue 6, pp.696-703

Computer Science

5

94.30 Xy, 94.30Lr

Scientific paper

The dynamics of energetic electrons ( E e =0.17-8 MeV) and protons ( E p =1 MeV) of the outer radiation belt during the magnetic storm of May 15, 2005, at high (GOES-10 and LANL-84 geosynchronous satellites) and low (Meteor-3M polar satellite) altitudes is analyzed. The data have been compared to the density, plasma velocity, solar wind, and magnetic field measurements on the ACE satellite and geomagnetic disturbances. During the magnetic storm main phase, the nighttime boundary of the region of trapped radiation and the center of westward electrojet shifted to L ˜ 3. Enhancements of only low-energy electrons were observed on May 15, 2005. The belt of relativistic electrons with a maximum at L ˜ 4 was formed during the substorm, the amplitude of which reached its maximum at ˜0630 UT on May 16. The results are in good agreement with the regularity relating the position of a maximum of the new relativistic electron belt, boundaries of the trapped radiation region, and extreme low-latitude position of westward electrojet center to the Dst variation amplitude.

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