Engineering topics
Publications and source records attributed to Galvan, C..
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Polar cap boundary layer waves are ELF/VLF electric and magnetic waves detected on field lines just adjacent to the polar cap. Intense waves are present at this location essentially all (96%) of the time.
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Polar Cap Boundary Layer waves are ELF/VLF electric and magnetic waves detected on field lines adjacent to the polar cap, thus their name.
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Polar Cap Boundary Layer waves are ELF/ULF electric and magnetic waves detected on field lines just adjacent to the polar cap, thus their name. Waves are present at this location 96% of the time.
We discuss Cassini and the electromagnetic electron and photon cyclotron waves in geospace.
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The Cassini spacecraft flew past the Earth in a trajectory almost along the Sun-Earth line, giving a unique perspective of low frequency waves in geospace.
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We find that small (10-200 rP) magnetic decreases comprise a dominant part of the polar solar wind microstructure at Ulysses distances (2.2 AU). These magnetic field dips are almost always bounded by tangential discontinuities, a feature which is not well understood at this time. Hundreds of these events have been examined in detail and a variety of types have been found. These will be described. It is speculated that these structures have been generated by perpendicular heating of ions closer to the Sun and have then been convected to distances of Ulysses. Such structures may be very important for the rapid cross- field diffusion of ions in the polar regions of the heliosphere.
Charged particle interactions with magnetic field magnitude changes lead to particle guiding center displacements and hence particle cross-field diffusion.