Results 271 to 280 of about 585,007 (286)

Interplanetary magnetic field and magnetospheric substorms

Planetary and Space Science, 1977
The interplanetary magnetic field (IMF) changes and the associated responses of the magnetosphere on November 1, 1972, are examined. IMF Bz changes consisted of a sudden southward turning, a slow northward turning, and a subsequent steady northward sense. Magnetospheric substorms occurred throughout this period.
R. P. Lepping, S.-I. Akasofu
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The Configuration of the Interplanetary Magnetic Field

1972
The idealized basic structure of the interplanetary magnetic field is the familiar spiral wound on a cone whose axis is the solar rotation axis. Variations in the radial velocity of the solar wind produce large scale variations in pitch; slight distortions are also produced by the non-radial component of the solar wind velocity.
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Magnetic fields in the interplanetary medium

Advances in Space Research, 1982
Interplanetary magnetic field lines are attached to the Sun at one end • and their form is determined primarily by the motions of the solar wind and by the rotation of the Sun. The solar wind, in effect, carries the magnetic field lines with it as it moves radially away from the Sun, while the Sun carries the base of each line along a circle as it ...
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Interplanetary Magnetic Field Dynamics

2001
The role of the IMF in the dynamics of solar wind interaction with the geomagnetosphere was proposed by Dungey in 1961. Early in-situ IMF measurements in the 60's confirmed the association of the magnitude and direction of the IMF with the Kp magnetic activity index.
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Solar and Interplanetary Magnetic Fields

Science, 1966
Space probe observations of solar wind, solar magnetic field and interplanetary magnetic ...
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Polar substorm and interplanetary magnetic field

Planetary and Space Science, 1971
Abstract By means of the IMP 3 magnetic data, a study is made on the relationships between the interplanetary magnetic field and the development of polar substorm. It is found that an explosive growth of the westward electrojet tends to appear after the interplanetary magnetic field has directed southward for 1–2 hr.
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Distributions of the interplanetary magnetic field revisited

Journal of Geophysical Research: Space Physics, 1994
The adequacy of the power spectrum to characterize the variations of a parameter depends on whether or not the parameter has a Gaussian distribution. We here perform very simple tests of Gaussianity on the distributions of the magnitudes of the interplanetary magnetic field, and on the distributions of the components; that is, we find the first four ...
Alexander Ruzmaikin, Joan Feynman
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Sector Structure of the Quiet Interplanetary Magnetic Field

Science, 1965
Observations of the interplanetary magnetic field by the Imp-1 satellite have revealed a regular longitudinal sector structure in this field. The sectors co-rotate with the sun; as an average sector sweeps past the earth the magnitude of the interplanetary field decreases from greater than 6 gammas (1 gamma = 10 -5 ...
John M. Wilcox, Norman F. Ness
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4.3.6 Interplanetary particles and magnetic fields

2009
More than five decades of active research with various spaceprobes cruising through the inner and outer heliosphere resulted in a wealth of measurements of solar wind parameters throughout the heliosphere [90S, 01N, 03N1]. The Helios probes collected data in the distance range between 0.29 AU and 1 AU for more than 12 years [b, c].
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Interplanetary Magnetic Field and the Auroral Zones

Physical Review Letters, 1961
Abstract : It was found that a model with a southward interplanetary magnetic field leads to a natural explanation of the SD currents. Speculative aspects of the problem as they appear at this time are discussed. It should be remembered that this problem is amenable to revolutionary progress by observations from rockets or satellites which go out more ...
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