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| Titel |
Variation of energetic electron flux in Earth's radiation belts based on Van Allen Probes observations |
| VerfasserIn |
Rongxin Tang, Zhihong Zhong, Deyin Yu |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250136945
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| Publikation (Nr.) |
 EGU/EGU2016-18101.pdf |
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| Zusammenfassung |
| The Earth’s radiation belts have been an important research topic of solar-terrestrial physics
from 1958. In 2012, Van Allen Probes (VAP) were launched into near-equatorial orbit and
provide very good in-situ observations of energetic particles in inner magnetosphere. Since
magnetospheric substorm can cause the severe disturbance of the Earth’s megnetospheric
environment, here we focus on the characteristics of energetic electron fluxes in the radiation
belts during substorm time and non-storm time. Energetic electron data observed by the
Magnetic Electron Ion Spectrometer (MagEIS) and Energetic Particle Composition and
Thermal Plasma Suite (ECT) of VAP during 2012 to 2014 are carefully analyzed.
We select portions of energetic electron data from substorm onset phase, growth
phase, recovery phase, and quiet time, and make a comparisons with theoretical
computations. We find that the electron differential fluxes present E−1 shape at lower
energies (<1MeV), and have a sharp transition with steeper slopes at high energies for
large L-shells, which are in coincidence with Mauk’s model [Mauk et al., 2010]. |
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