Coulomb lifetime of the ring current ions with time varying plasmasphere

Details Coulomb lifetime of the ring current ions with time varying plasmasphere Coulomb lifetime of the ring current ions with time varying plasmasphere

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ep%26s...50..371e&link_type=abstract

Earth, Planets and Space, Volume 50, p. 371-382.

Computer Science

6

Scientific paper

We have developed a time-dependent model of the plasmasphere to evaluate the spatial variation of the Coulomb lifetime of ring current ions. Coulomb collision has been considered to be one of major loss processes of the ring current ions interacted with the thermal plasma in the plasmasphere. The distribution of plasmaspheric density is derived by a continuity equation under the hydrostatic assumption. The protons supplied from both conjugate ionospheres are drifted by a time-dependent convection field and a corotation electric field. Calculated profiles of the number density and the relative motion of the plasmasphere are in fairly good agreement with the observational results by EXOS-B satellite. We traced the energetic ions during a storm on June 4-8, 1991 and calculated the differential flux and the pressure to examine the loss effects on the pressure due to the both loss processes. We found that (1) the Coulomb collision loss restrictively affects at L≤3 because the plasmasphere drastically shrank due to the strong convection, and that (2) there is no significant change in the ion composition ratio during the initial rapid recovery of Dst, i.e., the rapid recovery of Dstis not caused by the short charge exchange lifetime of O+ ions for this particular storm.

Affiliated with

Also associated with

No associations

Rating

Coulomb lifetime of the ring current ions with time varying plasmasphere 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 Coulomb lifetime of the ring current ions with time varying plasmasphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coulomb lifetime of the ring current ions with time varying plasmasphere will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1603677