Photoelectron flux buildup in the plasmasphere

Photoelectron Flux Build-Up in the Plasmasphere

Coronal mass ejections and magnetic flux buildup in the heliosphere

[1] To test for magnetic flux buildup in the heliosphere from coronal mass ejections (CMEs), we simulate heliospheric flux as a constant background open flux with a time-varying interplanetary CME (ICME) contribution. As flux carried by ejecta can only contribute to the heliospheric flux budget while it remains closed, the ICME flux opening rate is an important factor. Two separate forms for th...

Stress buildup in the Himalaya

[1] The seismic cycle on a major fault involves long periods of elastic strain and stress accumulation, driven by aseismic ductile deformation at depth, ultimately released by sudden fault slip events. Coseismic slip distributions are generally heterogeneous with most of the energy being released in the rupture of asperities. Since, on the long term, the fault’s walls generally do not accumulat...

Cause of plasmasphere corotation lag

It is hypothesized that the recently observed plasmasphere corotation lag is caused by a corresponding corotation lag in the upper ionosphere. Rotation rates of long-lived plasmaspheric notches are compared to ionospheric drifts observed on DMSP spacecraft in the same longitude sectors. Good agreement between the two observations is found, and the cause of the corotation lag is identified as th...

The Role of the Plasmasphere in Radiation Belt

The plasmapause separates cold dense plasma in the inner magnetosphere from hot, low-density outer magnetosphere plasma. This boundary is very dynamic in response to changes in magnetospheric convection and other stormtime phenomena. The outer radiation belt is also dynamic during stormtime in terms of both radial location and energetic particle population. It is proposed that outer radiation b...