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Mapping travelling convection vortex events with respect to energetic particle boundaries

Mapping travelling convection vortex events with respect to energetic particle boundaries Thirteen events of high-latitude ionospheric travelling convection vortices during very quiet conditions were identified in the Greenland magnetometer data during 1990 and 1991. The latitudes of the vortex centres for these events are compared to the energetic electron trapping boundaries as identified by the particle measurements of the NOAA 10 satellite. In addition, for all events at least one close DMSP overpass was available. All but one of the 13 cases agree to an exceptional degree that: the TCV centres are located within the region of trapped, high energy electrons close to the trapping boundary for the population of electrons with energy greater than > 100 keV. Correspondingly, from the DMSP data they are located within the region of plasmasheet-type precipitation close to the CPS/BPS precipitation boundary. That is, the TCV centres map to deep inside the magnetosphere and not to the magnetopause. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annales Geophysicae Springer Journals

Mapping travelling convection vortex events with respect to energetic particle boundaries

Moretto, T.; Yahnin, A.
Annales Geophysicae , Volume 16 (8) – Jan 1, 1998
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Publisher
Springer Journals
Copyright
Copyright © 1998 by Springer-Verlag Berlin Heidelberg
Subject
Earth Sciences; Geophysics/Geodesy; Astronomy, Observations and Techniques; Astrophysics and Astroparticles; Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics)
ISSN
0992-7689
eISSN
1432-0576
DOI
10.1007/s00585-998-0891-2
Publisher site
See Article on Publisher Site

Abstract

Thirteen events of high-latitude ionospheric travelling convection vortices during very quiet conditions were identified in the Greenland magnetometer data during 1990 and 1991. The latitudes of the vortex centres for these events are compared to the energetic electron trapping boundaries as identified by the particle measurements of the NOAA 10 satellite. In addition, for all events at least one close DMSP overpass was available. All but one of the 13 cases agree to an exceptional degree that: the TCV centres are located within the region of trapped, high energy electrons close to the trapping boundary for the population of electrons with energy greater than > 100 keV. Correspondingly, from the DMSP data they are located within the region of plasmasheet-type precipitation close to the CPS/BPS precipitation boundary. That is, the TCV centres map to deep inside the magnetosphere and not to the magnetopause.

Journal

Annales Geophysicae – Springer Journals

Published: Jan 1, 1998

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