Variations of the Electron Fluxes in the Terrestrial Radiation Belts Due To the Impact of Corotating Interaction Regions and Interplanetary Coronal Mass Ejections

Autor: Vincent Maget, Daniel Boscher, R. Benacquista, S. Rochel
Přispěvatelé: ONERA - The French Aerospace Lab [Toulouse], ONERA, ONERA - The French Aerospace Lab ( Toulouse )
Jazyk: angličtina
Rok vydání: 2018
Předmět:
010504 meteorology & atmospheric sciences
[SDU.STU.GP]Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]
Astrophysics
Electron
01 natural sciences
CEINTURES DE RADIATIONS TERRESTRES
[ SDU.STU.GP ] Sciences of the Universe [physics]/Earth Sciences/Geophysics [physics.geo-ph]
symbols.namesake
MAGNETOSPHERE
0103 physical sciences
Coronal mass ejection
Astrophysics::Solar and Stellar Astrophysics
TERRESTRIAL RADIATION BELTS
EJECTION DE MASSE CORONALE
010303 astronomy & astrophysics
0105 earth and related environmental sciences
Physics
[PHYS.PHYS.PHYS-SPACE-PH]Physics [physics]/Physics [physics]/Space Physics [physics.space-ph]
[ PHYS.PHYS.PHYS-SPACE-PH ] Physics [physics]/Physics [physics]/Space Physics [physics.space-ph]
Interplanetary coronal mass ejection
CORONAL MASS EJECTIONS
Geophysics
13. Climate action
Space and Planetary Science
Van Allen radiation belt
Physics::Space Physics
symbols
Astrophysics::Earth and Planetary Astrophysics
Interplanetary spaceflight
Zdroj: Journal of Geophysical Research Space Physics
Journal of Geophysical Research Space Physics, American Geophysical Union/Wiley, In press, ⟨10.1002/2017JA024796⟩
Journal of Geophysical Research : Space Physics
Journal of Geophysical Research : Space Physics, American Geophysical Union/Wiley, In press, 〈10.1002/2017JA024796〉
ISSN: 2169-9380
2169-9402
Popis: International audience; In this paper, we study the variations of the radiation belts electron fluxes induced by the interaction of two types of solar wind structures with the Earth magnetosphere: the corotating interaction regions and the interplanetary coronal mass ejections. We use a statistical method based on the comparison of the preevent and postevent fluxes. Applied to the National Oceanic and Atmospheric Administration-Polar Operational Environmental Satellites data, this gives us the opportunity to extend previous studies focused on relativistic electrons at geosynchronous orbit. We enlighten how corotating interaction regions and Interplanetary Coronal Mass Ejections can impact differently the electron belts depending on the energy and the L shell. In addition, we provide a new insight concerning these variations by considering their amplitude. Finally, we show strong relations between the intensity of the magnetic storms related to the events and the variation of the flux. These relations concern both the capacity of the events to increase the flux and the deepness of these increases.
Databáze: OpenAIRE
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