0503901 - ÚFA 2020 RIV US eng J - Článek v odborném periodiku
Ripoll, J.-F. - Loridan, V. - Denton, M. H. - Cunningham, G. - Reeves, G. - Santolík, Ondřej - Fennell, J. - Turner, D. L. - Drozdov, A.Y. - Cervantes Villa, J.S. - Shprits, Y. Y. - Thaller, S. A. - Kurth, W. S. - Kletzing, C. A. - Henderson, M. G. - Ukhorskiy, A. Y.
Observations and Fokker-Planck Simulations of the L-Shell, Energy, and Pitch Angle Structure of Earth's Electron Radiation Belts During Quiet Times.
Journal of Geophysical Research-Space Physics. Roč. 124, č. 2 (2019), s. 1125-1142. ISSN 2169-9380. E-ISSN 2169-9402
Grant ostatní: AV ČR(CZ) AP1401
Program: Akademická prémie - Praemium Academiae
Institucionální podpora: RVO:68378289
Klíčová slova: radiation belts * wave-particle interactions * electron lifetime * pitch angle diffusion coefficient * hiss waves
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 2.799, rok: 2019 ; AIS: 0.724, rok: 2019
Způsob publikování: Omezený přístup
Web výsledku:
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018JA026111DOI: https://doi.org/10.1029/2018JA026111

The evolution of the radiation belts in L-shell (L), energy (E), and equatorial pitch angle (alpha(0)) is analyzed during the calm 11-day interval (4-15 March) following the 1 March 2013 storm. Magnetic Electron and Ion Spectrometer (MagEIS) observations from Van Allen Probes are interpreted alongside 1D and 3D Fokker-Planck simulations combined with consistent event-driven scattering modeling from whistler mode hiss waves. Three (L, E, alpha(0)) regions persist through 11 days of hiss wave scattering, the pitch angle-dependent inner belt core (L similar to <2.2 and E < 700 keV), pitch angle homogeneous outer belt low-energy core (L > similar to 5 and E similar to < 100 keV), and a distinct pocket of electrons (L similar to [4.5, 5.5] and E similar to [0.7, 2] MeV). The pitch angle homogeneous outer belt is explained by the diffusion coefficients that are roughly constant for alpha(0) similar to <60 degrees, E > 100 keV, 3.5 < L < L-pp similar to 6. Thus, observed unidirectional flux decays can be used to estimate local pitch angle diffusion rates in that region. Top-hat distributions are computed and observed at L similar to 3-3.5 and E = 100-300 keV.
Trvalý link: http://hdl.handle.net/11104/0295675