Other
Scientific paper
Mar 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995georl..22..675p&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 22, no. 6, p. 675-678
Other
15
Current Sheets, Geomagnetic Tail, Magnetic Fields, Magnetic Storms, Magnetohydrodynamics, Ring Currents, Comparison, Computerized Simulation, Evolution (Development), Mathematical Models
Scientific paper
The tail currents predicted by empirical magnetic field models and global MHD simulations are compared. It is shown that the near-Earth currents obtained from the MHD simulations are much weaker than the currents predicted by the Tsyganenko models, primarily because the ring current is not properly represented in the simulations. On the other hand, in the mid-tail and distant tail the lobe field strength predicted by the simulations is comparable to what is observed at about 50 R(sub E) distance, significantly larger than the very low lobe field values predicted by the Tsyganenko models at that distance. Ways to improve these complementary approaches to model the actual magnetospheric configuration are discussed.
Ashour-Abdalla Maha
Baker Daniel N.
Pulkkinen Tuija I.
Raeder Joachim
Walker Ray J.
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