Long Term Radiation Belt Simulations with VERB-3D Code, Comparison with Multisatelite Observations Reanalysis

Details Long Term Radiation Belt Simulations with VERB-3D Code, Comparison with Multisatelite Observations Reanalysis Long Term Radiation Belt Simulations with VERB-3D Code, Comparison with Multisatelite Observations Reanalysis

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm51a1764s&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SM51A-1764

Physics

[2720] Magnetospheric Physics / Energetic Particles: Trapped, [2730] Magnetospheric Physics / Magnetosphere: Inner, [2753] Magnetospheric Physics / Numerical Modeling, [2774] Magnetospheric Physics / Radiation Belts

Scientific paper

Highly energetic electrons in the Earth's radiation belt are hazardous for satellite equipment and humans in space. The evolution of relativistic electron fluxes in the radiation belt is described by the 3-dimentional Fokker-Plank equation in terms of the radial distance, energy and equatorial pitch angle. To better understand the controlling mechanisms of radiation belt acceleration and loss and particle flux dynamics, we present the long term radiation belt simulation with the 3-D Versatile Electron Radiation Belt (VERB) code. The simulation includes radial diffusion due to ULF waves, energy, and pitch angle scattering due to day and night side chorus waves at high and low latitudes, plasmaspheric hiss waves, EMIC and hiss waves in the regions of plumes, and losses to magnetopause and atmosphere. The results of the simulation are compared with a 100 day reanalysis of electron flux data obtained by using Kalman filtering with CRRES, GEO, GPS, and Akebono data. We also present sensitivity simulations to the assumed model of waves and discuss the consequences for forecasting and now casting.

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