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Magnetic field topology during July 14–16 2000 (Bastille Day) solar CME event
Author(s) -
Rastätter L.,
Hesse M.,
Kuznetsova M.,
Gombosi T. I.,
DeZeeuw D. L.
Publication year - 2002
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 - 10.1029/2001gl014136
Subject(s) - magnetosphere , earth's magnetic field , solar wind , physics , magnetic cloud , magnetic field , event (particle physics) , topology (electrical circuits) , geophysics , southern hemisphere , mercury's magnetic field , interplanetary magnetic field , geology , astrophysics , astronomy , mathematics , quantum mechanics , combinatorics
The July 14–16, 2000 (Bastille Day) event was marked by an extraordinary level of geomagnetic activity following the impact of a large magnetic cloud onto the Earth's magnetosphere at 14:38 on July 15, 2000. The strong increase of the solar wind speed, and density and the large amplitude and variability of B y and B z gives rise to dramatic topological changes of unexpected magnitude in the magnetic field of the near‐Earth magnetosphere. This event is one of the first real events comprehensively modeled with the adaptive grid MHD simulation scheme BATS‐R‐US. Magnetic field line integrations were performed with the model output to obtain the three‐dimensional magnetic topology and the magnetic mapping between the northern and the southern hemisphere of the Earth.