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1996
The magnetosphere is the region where cosmic rays and the solar wind interact with the Earth's magnetic field, creating such phenomena as the northern lights and other aurorae. The configuration and dynamics of the magnetosphere are of interest to planetary physicists, geophysicists, plasma astrophysicists, and to scientists planning space missions ...
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The magnetosphere is the region where cosmic rays and the solar wind interact with the Earth's magnetic field, creating such phenomena as the northern lights and other aurorae. The configuration and dynamics of the magnetosphere are of interest to planetary physicists, geophysicists, plasma astrophysicists, and to scientists planning space missions ...
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Observations in the vicinity of substorm onset: Implications for the substorm process
Journal of Geophysical Research: Space Physics, 1995Multi‐instrument data sets from the ground and satellites at both low and high altitude have provided new results concerning substorm onset and its source region in the magnetosphere. Twenty‐six out of 37 substorm onset events showed evidence of azimuthally spaced auroral forms (AAFs) prior to the explosive poleward motion associated with optical ...
Elphinstone, R. +17 more
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Physics of Fluids B: Plasma Physics, 1992
Magnetospheric substorms encompass a myriad of dynamical phenomena resulting from the coupling of the solar wind with the Earth’s magnetic field and the ionosphere. Although external solar wind conditions conducive to substorm development are generally regarded as identified, the precise cause for substorm onset remains an outstanding unresolved ...
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Magnetospheric substorms encompass a myriad of dynamical phenomena resulting from the coupling of the solar wind with the Earth’s magnetic field and the ionosphere. Although external solar wind conditions conducive to substorm development are generally regarded as identified, the precise cause for substorm onset remains an outstanding unresolved ...
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The occurrence rate of magnetospheric‐substorm onsets: Random and periodic substorms
Journal of Geophysical Research: Space Physics, 1993Particle‐injection events are monitored on three geosynchronous satellites to determine the occurrences of magnetospheric substorms: for every consecutive pair of substorms found, the time interval Δt between substorm onsets is determined. In this manner, 1001 values of Δt are obtained.
Joseph E. Borovsky +2 more
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1996
Do events in the solar wind “trigger” substorms, or do substorms occur independently? Is there a difference between triggered and untriggered substorms? What kinds of events trigger onsets? Expansions? Can we learn about their physics from the things that do and do not trigger them?
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Do events in the solar wind “trigger” substorms, or do substorms occur independently? Is there a difference between triggered and untriggered substorms? What kinds of events trigger onsets? Expansions? Can we learn about their physics from the things that do and do not trigger them?
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1996
The reconnection model of magnetospheric substorms was designed 20 years ago to rationalize the time-dependent changes in the magnetospheric structure associated with auroral substorms. By 1970, it was becoming apparent that there was a characteristic sequence of events prior to auroral onset: The dayside magnetopause moved earthward, the inner edge of
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The reconnection model of magnetospheric substorms was designed 20 years ago to rationalize the time-dependent changes in the magnetospheric structure associated with auroral substorms. By 1970, it was becoming apparent that there was a characteristic sequence of events prior to auroral onset: The dayside magnetopause moved earthward, the inner edge of
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1996
Around the time the steady convection model was being developed, Akasofu (1964) was arranging ground-based magnetometer and all-sky camera observations of the complex time dependence of nightside auroral activity into the central phenomenological conception of tune-dependent magnetospheric physics—the auroral substorm.
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Around the time the steady convection model was being developed, Akasofu (1964) was arranging ground-based magnetometer and all-sky camera observations of the complex time dependence of nightside auroral activity into the central phenomenological conception of tune-dependent magnetospheric physics—the auroral substorm.
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Geophysical & Astrophysical Fluid Dynamics, 1991
Abstract This paper attempts to deal with magnetospheric activity from the kinematic point of view, using the homogeneous subset of Maxwell's equations and Ohm's law. This approach gives insight into three major substorm processes: Plasma entry through the magnetopause (including impulsive penetration), plasmoid formation in the magnetotail and near ...
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Abstract This paper attempts to deal with magnetospheric activity from the kinematic point of view, using the homogeneous subset of Maxwell's equations and Ohm's law. This approach gives insight into three major substorm processes: Plasma entry through the magnetopause (including impulsive penetration), plasmoid formation in the magnetotail and near ...
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1996
The reconnection model of substorms deals with the large-scale changes in the structure of the magnetosphere and tail as convection intensifies following a sudden increase in the dayside reconnection rate. The model has difficulty making statements relevant to the small scales that characterize auroral onset.
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The reconnection model of substorms deals with the large-scale changes in the structure of the magnetosphere and tail as convection intensifies following a sudden increase in the dayside reconnection rate. The model has difficulty making statements relevant to the small scales that characterize auroral onset.
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