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Neutral line model of substorms: Past results and present view
The near-Earth neutral line (NENL) model of magnetospheric substorms is reviewed. The observed phenomenology of substorms is discussed including the role of coupling with the solar wind andExpand
A proposed production model of rapid subauroral ion drifts and their relationship to substorm evolution
Multisatellite data are used to examine the temporal relationship between Subauroral Ion Drifts (SAID) and the phases of an auroral substorm. Utilizing images of auroral luminosities taken by theExpand
Lion roars and nonoscillatory drift mirror waves in the magnetosheath
A complete set of ISEE plasma wave, plasma, and field data are used to identify the plasma instability responsible for the generation of extremely low frequency (ELF) electromagnetic lion roars. LionExpand
Magnetospheric Impulse Response for Many Levels of Geomagnetic Activity
The temporal relationship between the solar wind and magnetospheric activity has been studied using 34 intervals of high time resolution IMP 8 solar wind data and the corresponding AL auroralExpand
Bidirectional solar wind electron heat flux events
Normally the ≳ 80-eV electrons which carry the solar wind electron heat flux are collimated along the interplanetary magnetic field (IMF) in the direction pointing outward away from the sun.Expand
An ISEE 3 study of average and substorm conditions in the distant magnetotail
Average and substorm conditions in the lobe and plasma sheet regions of the earth's magnetotail are studied as a function of downstream distance and east-west location using ISEE 3 magnetometer andExpand
Linear prediction filter analysis of relativistic electron properties at 6.6 RE
Electrons with energies >500 keV in the Earth's outer magnetosphere exhibit very hard energy spectra and highly variable absolute intensities. The fluxes often show a strong 27-day periodicity whichExpand
The Global Geospace Science Program and its investigations
The detailed study of the solar-terrestrial energy chain will be greatly enhanced with the launch and simultaneous operation of several spacecraft during the current decade. These programs are beingExpand
The MESSENGER mission to Mercury: Scientific objectives and implementation
Abstract Mercury holds answers to several critical questions regarding the formation and evolution of the terrestrial planets. These questions include the origin of Mercury's anomalously high ratioExpand
A major solar eruptive event in July 2012: Defining extreme space weather scenarios
[1] A key goal for space weather studies is to define severe and extreme conditions that might plausibly afflict human technology. On 23 July 2012, solar active region 1520 (~141°W heliographicExpand