Other
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004agufmsm23a0476h&link_type=abstract
American Geophysical Union, Fall Meeting 2004, abstract #SM23A-0476
Other
2731 Magnetosphere: Outer, 2752 Mhd Waves And Instabilities, 2784 Solar Wind/Magnetosphere Interactions
Scientific paper
We present six examples of ˜0.5 Hz Pc 1 (ion cyclotron) wave activity observed by the Cluster satellites during 2002. Near perigee waves were observed as the spacecraft passed latitudinally through the dayside inner and middle magnetosphere. These waves were never observed at all four spacecraft, and hence are rather localized. Each was associated with highly structured plasma sheet / ring current ion distributions. One event, observed near the equator, provides strong evidence of a radial width of L ˜0.2. Another event observed when the spacecraft were near -40° MLAT and also observed on the ground is associated with ion distributions similar to the "spatial" event category defined by Engebretson et al. [JGR 107, A12, 1451, 2002]. Near apogee in the tail lobes and/or plasma mantle, waves were observed essentially simultaneously (to within ˜ 5 min) for intervals of 0.5 - 3 hours at all four spacecraft in association with orders-of-magnitude step increases in ion density.
Balogh André
Engebretson Mark J.
Glassmeier Karl-Heintz
Hokenson J. M.
Keiling Andreas
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