Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/809110

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Title
Multipoint observations of Pc1-2 waves in the afternoon sector
Author/Creator
Morley, Steven K.;  Ables, Sean T.;  Sciffer, Murray D.;  Fraser, Brian J.
Institution
The University of Newcastle. Faculty of Science & Information Technology, School of Mathematical and Physical Sciences
Description
Coordinated observations from GOES-9, DMSP F-13, and Chokurdakh (CHD) have shown concurrent Pc1-2 band wave activity in the late afternoon sector, close to 16 MLT. The left-hand polarization of the waves in space indicates that these are electromagnetic ion cyclotron (EMIC) waves. In the region of field line conjunction, DMSP also observed 6–30 keV energy ion precipitation. We have examined the propagation of the EMIC waves from the magnetosphere to the ionosphere using both time series analysis and a 2½D magnetohydrodynamic model. Our analysis suggests that the EMIC are generated by interactions with cold plasma within a drainage plume, consistent with theory, and that the waves primarily propagate earthward along geomagnetic field lines at the eastward (outer) edge of the plume.
Relation
Journal of Geophysical Research: Space Physics Vol. 114
Publisher Link
http://dx.doi.org/10.1029/2009ja014162
Date
2009
Publisher
American Geophysical Union
Keyword(s)
multipoint observations;  polarization;  EMIC waves;  electromagnetic ion cyclotron
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/809110
Identifier
ISSN:0148-0227
Reviewed
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Subject
"Journal of Geophysical Research: Space Physics"
 
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