Van Allen Probes Bibliography is from August 2012 through September 2021 Notice:
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Storm time observations of plasmasphere erosion flux in the magnetosphere and ionosphere
Author | Foster, J.; Erickson, P.; Coster, A.; Thaller, S.; Tao, J.; Wygant, J.; Bonnell, J; |
Keywords | Van Allen Probes |
Abstract | Plasmasphere erosion carries cold dense plasma of ionospheric origin in a storm-enhanced density plume extending from dusk toward and through the noontime cusp and dayside magnetopause and back across polar latitudes in a polar tongue of ionization. We examine dusk sector (20 MLT) plasmasphere erosion during the 17 March 2013 storm (Dst ~ -130 nT) using simultaneous, magnetically aligned direct sunward ion flux observations at high altitude by Van Allen Probes RBSP-A (at ~3.0 Re) and at ionospheric heights (~840 km) by DMSP F-18. Plasma erosion occurs at both high and low altitudes where the subauroral polarization stream flow overlaps the outer plasmasphere. At ~20 UT, RBSP-A observed ~1.2E12 m-2 s-1 erosion flux, while DMSP F-18 observed ~2E13 m-2 s-1 sunward flux. We find close similarities at high and low altitudes between the erosion plume in both invariant latitude spatial extent and plasma characteristics. |
Year of Publication | 2014 |
Journal | Geophysical Research Letters |
Volume | 41 |
Number of Pages | 762-768 |
Section | |
Date Published | 02/2014 |
ISBN | |
URL | http://doi.wiley.com/10.1002/2013GL059124 |
DOI | 10.1002/2013GL059124 |