On the poleward expansion of the outer radiation belt during substorms
Abstract
Poleward expansions of the outer radiation belt are examined using measurements of the low altitude satellites. Such behavior of the radiation belt boundary indicates on the effect of hyper-dipolarization, the poleward expansion of the nightime quasitrapping region. It is shown that such shifts are created by substorm activity, leading to the so called polar cap substorms. High latitude bursts of the energetic electrons might be generated during polar cap substorms similarly as in regular auroral substorms.
- Publication:
-
40th COSPAR Scientific Assembly
- Pub Date:
- 2014
- Bibcode:
- 2014cosp...40E1764L