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Energetic electron injections into the inner magnetosphere during the Jan. 10–11, 1997 magnetic storm
Author(s) -
Li Xinlin,
Baker D. N.,
Temerin M.,
Cayton T.,
Reeves G. D.,
Araki T.,
Singer H.,
Larson D.,
Lin R. P.,
Kanekal S. G.
Publication year - 1998
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/98gl00036
Subject(s) - magnetosphere , substorm , physics , solar wind , geomagnetic storm , electron , van allen radiation belt , population , storm , magnetic field , geophysics , meteorology , nuclear physics , demography , quantum mechanics , sociology
At the end of the main phase of the Jan. 10–11, 1997 magnetic storm, a rapid enhancement of 0.4‐1.6 MeV electrons across L=4.2–6 was measured by particle detectors on the Solar, Anomalous, and Magnetospheric Particle Explorer (SAMPEX) and three Global Positioning System (GPS) satellites. This enhancement, over two orders of magnitude at L=4.2–5, occurred around 11:00 UT on Jan. 10, when the AE index reached ∼ 2000 nT and when a solar wind pressure pulse arrived. Using data from multiple satellites and ground stations, we determine that the rapid enhancement of 0.4–1.6 MeV electrons in the magnetosphere at L=4.2–6 was due to a combination of intense substorm activity during the early part of the magnetic storm which produced a source population and the following pressure pulse which quickly energized some of these electrons by moving them into stronger magnetic field.