EGU2020-17757, updated on 12 Jun 2020
https://doi.org/10.5194/egusphere-egu2020-17757
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

A Comparison of Radial Diffusion Coefficients in 1-D and 3-D Long-Term Radiation Belt Simulations

Alexander Drozdov1, Hayley Allison2, Yuri Shprits2,3, and Nikita Aseev2
Alexander Drozdov et al.
  • 1University of California Los Angeles, EPSS, Los Angeles, United States of America (adrozdov@ucla.edu)
  • 2GFZ German Centre for Geosciences, Potsdam, Germany
  • 3Institute of Physics and Astronomy, University of Potsdam, Germany

Radial diffusion is one of the dominant physical mechanisms that drives acceleration andloss of the radiation belt electrons due to wave-particle interactions with ultra-low frequency (ULF) waves, which makes it very important for radiation belt modeling and forecasting.  We investigate the sensitivity of several parameterizations of the radial diffusion including Brautigam and Albert (2000), Ozeke et al. (2014), Ali et al. (2016), and Liu et al. (2016) on long-term radiation belt modeling using the Versatile Electron Radiation Belt (VERB) code.  Following previous studies, we first perform 1-D radial diffusion simulations.  To take into account effects of local acceleration and loss, we perform additional 3-D simulations, including pitch-angle, energy and mixed diffusion.

How to cite: Drozdov, A., Allison, H., Shprits, Y., and Aseev, N.: A Comparison of Radial Diffusion Coefficients in 1-D and 3-D Long-Term Radiation Belt Simulations, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-17757, https://doi.org/10.5194/egusphere-egu2020-17757, 2020

This abstract will not be presented.