Found 2 entries in the Bibliography.
Showing entries from 1 through 2
2021 |
Challenging the Use of Ring Current Indices During Geomagnetic Storms Abstract The ring current experiences dramatic enhancements during geomagnetic storms, however understanding the global distribution of ring current energy content is restricted by spacecraft coverage. Many studies use ring current indices as a proxy for energy content, but these indices average over spatial variations and include additional contributions. We have conducted an analysis of Van Allen Probes’ data, identifying the spatial distribution and storm-time variations of energy content. Ion observations from the HOPE ... Sandhu, J.; Rae, I.; Walach, M.-T.; YEAR: 2021   DOI: https://doi.org/10.1029/2020JA028423 ring current; Geomagnetic storms; Van Allen Probes; inner magnetosphere; substorms |
2019 |
Substorm-Ring Current Coupling: A Comparison of Isolated and Compound Substorms Substorms are a highly variable process, which can occur as an isolated event or as part of a sequence of multiple substorms (compound substorms). In this study we identify how the low-energy population of the ring current and subsequent energization varies for isolated substorms compared to the first substorm of a compound event. Using observations of H+ and O+ ions (1 eV to 50 keV) from the Helium Oxygen Proton Electron instrument onboard Van Allen Probe A, we determine the energy content of the ring current in L-MLT space ... Sandhu, J.; Rae, I.; Freeman, M.; Gkioulidou, M.; Forsyth, C.; Reeves, G.; Murphy, K.; Walach, M.-T.; YEAR: 2019   DOI: 10.1029/2019JA026766 inner magnetosphere; ring current; substorms; Van Allen; Van Allen Probes |
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