Simulation of energetic electrons dynamics on the Oct. 2001 magnetic storm

Details Simulation of energetic electrons dynamics on the Oct. 2001 magnetic storm Simulation of energetic electrons dynamics on the Oct. 2001 magnetic storm

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsm51c0540m&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SM51C-0540

Physics

2720 Energetic Particles, Trapped, 2730 Magnetosphere: Inner, 7807 Charged Particle Motion And Acceleration, 7843 Numerical Simulation Studies, 7867 Wave/Particle Interactions

Scientific paper

We study the storm event occurred in October 2001 and examine the dynamics of energetic electrons in the inner magnetosphere using satellite observations and numerical simulations. The storm has a well-developed main phase and slow recovery phase, although the substorm activity in the recovery phase is quite small. During the storm, NOAA, Akebono and Polar satellites successively observe the spatial and temporal evolution of energetic particles and plasma waves in the inner magnetosphere. The hot electrons increase at the dawn-side from main phase to early recovery phase. In contrast, the relativistic electrons in the outer belt disappear during the main phase but show significant enhancement around the late main phase to early recovery phase. We simulate the evolution of phase space distribution function of ring current and radiation belt electrons for energy range from a few hundred eV to a few MeV using the UNH RAM code [Jordanova et al., JGR, 106, 7, 2001], which solves the time-dependent, bounce-averaged kinetic equation of particle drifts, radial diffusion and loss due to Coulomb collisions. We also consider wave-particle interactions in the model. In the simulation, the time-dependent particle distributions measured from the MPA and SOPA instruments on the geosynchronous LANL satellites are used as the outer boundary conditions. We compare the RAM simulation with satellite observations and study the time-evolution of global particle distribution during the storm. We also discuss the contribution of each physical process to particle transport and loss.

Affiliated with

Also associated with

No associations

Rating

Simulation of energetic electrons dynamics on the Oct. 2001 magnetic storm does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Simulation of energetic electrons dynamics on the Oct. 2001 magnetic storm, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simulation of energetic electrons dynamics on the Oct. 2001 magnetic storm will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1650771