Computer Science
Scientific paper
May 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985rpspr...5...19l&link_type=abstract
In its USSR Rept.: Space (JPRS-USP-85-004) p 19-20 (SEE N85-26772 16-12) Transl. into ENGLISH from Geomagn. i Aeron. (Moscow)
Computer Science
Geomagnetism, Solar Terrestrial Interactions, Solar Wind, Space Plasmas, Flow, Supersonic Flow, Velocity, Velocity Distribution
Scientific paper
During recent years much new information has been obtained on the state of the region of formation of the supersonic flow of the solar wind, the transition region situated at a distance of 10 to 20 solar radii from the Sun. These data are used in a study of the responses of solar wind velocity at great distances from the sun and the K(p) index to the temporal dynamics of the transition region. A comparison of all available data reveals the principal features of the dynamics of the transition region of circumsolar plasma:P the main geometrical characteristics of the transition region, its inner and outer boundaries. A particular case is examined for which the transition region was situated at a distance or = 32 solar radii from the Sun. It is shown that there is a correlation between the geometry of the transition region and the geomagnetic activity level: the closer the transition region is to the Sun, the higher the geomagnetic activity level. The temporal changes in the geometry of the transition region reveal a correlation with solar wind flow, with v(eff), and with the K(p) index. These data may be useful in predicting geomagnetic activity, possibly 6 to 7 days in advanced in comparison with 1 to 2 days when using routine observations of scintillations in regions remote from the Sun.
Kozlovskiy V. D.
Lotova N. A.
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