Computer Science
Scientific paper
Aug 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981p%26ss...29..803a&link_type=abstract
Planetary and Space Science, vol. 29, Aug. 1981, p. 803-807.
Computer Science
23
Earth Magnetosphere, Geomagnetism, Interplanetary Magnetic Fields, Magnetic Field Configurations, Atmospheric Models, Solar Electrons, Solar Terrestrial Interactions
Scientific paper
The geometry of the open flux area in the polar region is computed by superposing a uniform interplanetary magnetic field (IMF) with various orientation angles to a model of the magnetosphere. It is confirmed that the IMF By component is as important as the Bz component in opening the magnetosphere. It is also shown that the computed area of open field lines is remarkably similar to the observed ones which were determined by using the entry of solar electrons. In particular, when the IMF vector is confined in the X-Z-plane and the Bz component has a large positive value, the open area becomes crescent-shaped, coinciding approximately with the cusp region.
Akasofu Syuh-Ichi
Covey D. N.
Meng C.-L.
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