Physics
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991angeo...9..495f&link_type=abstract
Annales Geophysicae (ISSN 0939-4176), vol. 9, July 1991, p. 495-499.
Physics
1
Earth Magnetosphere, Interplanetary Magnetic Fields, Magnetic Field Reconnection, Magnetic Storms, Solar Wind Velocity, Energy Dissipation, Magnetopause, Poynting Theorem
Scientific paper
The relative role of the two principal mechanisms in providing solar wind energy and momentum to the magnetosphere is investigated for a special case. The Poynting-vector flux is taken as a measure of energy-input rate, and the cross-polar potential difference as that of corresponding transport of momentum. By means of the magnetogram inversion technique, hourly-averaged values of the transport parameters mentioned above are estimated for nine selected one-hour intervals of the magnetospheric storm of January 25 to 28, 1974. It is concluded that the contribution of viscous-interaction processes to the cross-polar potential difference is comparable to that of reconnection during the CDAW-W interval of weak or moderate substorms.
Bazarshapov A. D.
Foerster Michael
Luniushkin S. B.
Mishin V. M.
Saifudinova Tamara I.
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