Polar Cap Boundary Phenomena

Recent work on the Kelvin-Helmholtz instability at the dayside magnetopause and boundary layer.- Magnetopause motions in a Newton-Busemann approach.- Comparison of gasdynamics and MHD predictions for magnetosheath flow.- Time-varying reconnection. Quantitative reconnection.- An empirical model of the magnetopause for broad ranges of solar wind pressure and BZ IMF.- Solar wind He2+ and H+ distributions in the cusp for southward IMF.- Identifying the open-closed field line boundary.- Open and closed low latitude boundary layer.- The dynamic magnetosphere.- Ionospheric signatures of magnetopause processes.- Excitation of flow in the Earth’s magnetosphere-ionosphere system: observations by incoherent-scatter radar.- Large-scale electric fields in the dayside magnetosphere.- Polar observations of cusp electrodynamics: evolution from 2- to 4-cell convection patterns.- Relationship between large-, meso-, and small-scale field-aligned currents and their current carriers.- The dayside aurora and its regulation by the interplanetary magnetic field.- Auroral and geomagnetic signatures of flux transfer events and associated current systems for positive and negative IMF BY.- Coherent-scatter radar studies of the dayside cusp.- Ionospheric radiowave absorption processes in the dayside polar cap boundary regions.- Response of the polar cap ionosphere to changes in (solar wind) IMF.- Polar cap phenomena and their relation to boundary layers and the IMF.- Polar patches - outstanding issues.- Conjugate features of auroras observed by TV cameras and imaging riometers at auroral zone and polar cap conjugate-pair stations.- HF radars as a tool for conjugate studies of magnetospheric phenomena.- Conjugate ground observations and possible source regions of two types of PC 1–2 pulsationsat very high latitudes.- Studies of geomagnetic conjugacy at very high latitudes.- A model for the high latitude isotropic boundary.- Particle boundaries during a solar electron event.- Structure analysis of geosynchronous substorm oscillations.- Substorms and the inner magnetosphere: onset and initial expansion.- Observations of tailward sreaming ions in the near-earth tail during a magnetospheric substorm.- Space weather - the practice of space physics.- A summary of the NATO ASI on polar cap boundary phenomena.