Physics
Scientific paper
Jan 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jgr....87..119m&link_type=abstract
Journal of Geophysical Research, vol. 87, Jan. 1, 1982, p. 119-127. Research supported by the Consiglio Nazionale delle Ricerch
Physics
21
Auroral Electrojets, Interplanetary Magnetic Fields, Magnetic Storms, Magnetospheric Instability, Solar Terrestrial Interactions, Space Plasmas, Cross Correlation, Indexes, Interplanetary Medium, Regression Analysis, Solar Wind Velocity
Scientific paper
Linear cross correlation and multilinear regression analyses are used to study the statistical relationships between the magnetospheric auroral electrojet intensity index AE, and parameters characterizing the interplanetary plasma and magnetic field. The epsilon parameter recently proposed as an independent variable is also considered. It is found that when the interplanetary data set is not distinguished as to the direction of the north-south component B(z), the interplanetary electric field -VB(z) carried to the front of the magnetosphere correlates more closely with AE than does the epsilon parameter. A better correlation of epsilon with AE than of the electric field with AE is found when only data during which B(z) is negative is considered. The results suggest that the physical processes involved in energy transfer to the nightside magnetosphere depend on the direction of the north-south component of the magnetic field.
Lanzerotti Louis J.
Meloni Antonio
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