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The plasmasphere is a critical region of the magnetosphere. It is important for the evolution of Earth\textquoterights radiation belts. Waves in the plasmasphere interior (hiss) and vicinity (EMIC, chorus) help control the acceleration and loss of radiation belt particles. Thus, understanding the extent, structure, content, and dynamics of the plasmasphere is crucial to understanding radiation belt losses. The Van Allen Probes mission uses two methods to determine the total plasma density. First, the upper hybrid resonance ( ...
YEAR: 2020   DOI: 10.1029/2019JA026860
Adverse conditions in the space environment, that is, space weather, can affect the performance and reliability of space-borne and ground-based technological systems. The dynamic near-Earth space environment, driven by solar activity, exhibits large variations of energetic particles, plasma, and electromagnetic fields. Abrupt changes or enhancements in these may cause disruption of satellite operations, communications, and electric power grids, leading to a variety of economic losses and impacts on our security. This chapter ...
YEAR: 2020   DOI: 10.1016/B978-0-12-815571-4.00008-1
Using the Helium Oxygen Proton Electron (HOPE) and Electric Field and Waves (EFW) instruments from the Van Allen Probes, we explored the relationship between electron energy fluxes in the eV and keV ranges and spacecraft surface charging. We present statistical results on spacecraft charging within geosynchronous orbit by L and MLT. An algorithm to extract the H+ charging line in the HOPE instrument data was developed to better explore intense charging events. Also, this study explored how spacecraft potential relates to ele ...
YEAR: 2016   DOI: 10.1002/2015SW001345