Biblio

Found 2 results
Filters: Author is Wiltberger, M.  [Clear All Filters]
2015
Authors: Hudson M K, Paral J., Kress B T, Wiltberger M., Baker D N, et al.
Title: Modeling CME-shock driven storms in 2012 - 2013: MHD-test particle simulations
Abstract: The Van Allen Probes spacecraft have provided detailed observations of the energetic particles and fields environment for CME-shock driven storms in 2012 to 2013 which have now been modeled with MHD-test particle simulations. The Van Allen Probes orbital plane longitude moved from the dawn sector in 2012 to near midnight and pre-noon for equinoctial storms of 2013, providing particularly good measurements of the inductive electric field response to magnetopause compression for the 8 October 2013 CME-shock driven storm. An abrupt decrease in the outer boundary of outer zone electrons coincided with inward motion of the magnetopause for both 17 March and 8 October 2013 storms, as was the case for storms shortly after launch (Hudson et al., 2014). Modeling magnetopause dropout events in 2013 . . .
Date: 01/2015 Publisher: Journal of Geophysical Research: Space Physics DOI: 10.1002/2014JA020833 Available at: http://doi.wiley.com/10.1002/2014JA020833
More Details
2014
Authors: Hudson M K, Baker D N, Goldstein J, Kress B T, Paral J., et al.
Title: Simulated magnetopause losses and Van Allen Probe flux dropouts
Abstract: Three radiation belt flux dropout events seen by the Relativistic Electron Proton Telescope soon after launch of the Van Allen Probes in 2012 (Baker et al., 2013a) have been simulated using the Lyon-Fedder-Mobarry MHD code coupled to the Rice Convection Model, driven by measured upstream solar wind parameters. MHD results show inward motion of the magnetopause for each event, along with enhanced ULF wave power affecting radial transport. Test particle simulations of electron response on 8 October, prior to the strong flux enhancement on 9 October, provide evidence for loss due to magnetopause shadowing, both in energy and pitch angle dependence. Severe plasmapause erosion occurred during ~ 14 h of strongly southward interplanetary magnetic field Bz beginning 8 October coincident with. . .
Date: 02/2014 Publisher: Geophysical Research Letters Pages: 1113 - 1118 DOI: 10.1002/2014GL059222 Available at: http://doi.wiley.com/10.1002/2014GL059222
More Details