DE/EICS Observations in the Polar Cap
- Several of the papers below describe in detail the
ion plasma environment associated with the
Theta Aurora.
- Most of the papers listed below describe aspects of the
creation and evolution
of upflowing low (10-100 eV/e) streams of ions in the polar cap.
It is now well established that most of the upflowing ions observed
in the polar cap originate on the day-side at mid-altitudes (i.e. above
~1,000 km).
However upflowing ion streams can also arize from sun-aligned arcs
and the less common theta aurora..
References (In alphabetical order by first author)
-
Chen, M, W.K. Peterson, M. Ashour-Abdalla, T.E. Moore, and A.M. Persoon,
Plasma characteristics of upflowing ion beams in the polar cap region, J.
Geophys. Res., 95, 3907, 1990.
-
Horowitz, J.L., C.J. Pollock, T.E. Moore, W.K. Peterson, J.L. Burch, J.D.
Winningham, J.D. Craven, L.A. Frank, and A. Persoon, The polar cap environment
of outflowing 0+, J. Geophys. Res., 97, 8361, 1992.
-
Frank, L. A., J. D. Craven, D. A. Gurnett, S. D. Shawhan, D. R. Weimer, J. L.
Burch, J. D. Winningham, C. R. Chappell, J. H. Waite, R. A. Heelis, N. C.
Maynard, M. Sugiura, W. K. Peterson, and E. G. Shelley, The theta aurora, J.
Geophys. Res., 91, 3177, 1986.
-
Peterson, W. K., and E. G. Shelley, Origin of the plasma in a cross polar cap
auroral feature (Theta Aurora), J. Geophys. Res., 89, 6729, 1984.
-
Peterson, W. K., M. Andre, G. B. Crew, A. M. Persoon, M. J. Engebretson, C. J.
Pollock, and M. Temerin, Heating of thermal ions near the equatorward boundary
of the mid-altitude polar cleft, in Electrodynamic Coupling in the Polar
Clefts and Caps, P. E. Sandholt and A. Egeland Editors Kluwer Academic
Publishers, p. 103, 1989.
-
Peterson, W.K., A.W. Yau, and B.A. Whalen, Simultaneous Observations of H+ and
O+ Ions at Two Altitudes by the Akebono and Dynamics Explorer -1 Satellites,
J. Geophys. Res., 98, 11177, 1993a.
-
Shelley, E. G., W. K. Peterson, A. G. Ghielmetti, and J. Geiss, The polar
ionosphere as a source of energetic magnetospheric plasma, Geophys. Res.
Lett., 9, 941, 1982.
Last updated October, 1995 by W.K. Peterson
