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Title: Polar cap patch segmentation of the tongue of ionization in the morning convection cell
Authors: Zhang, Q. H.
Zhang, B. C.
Moen, J.
Lockwood, M.
McCrea, I. W.
Yang, H. G.
Hu, H. Q.
Liu, R. Y.
Zhang, S. R.
Lester, Mark
First Published: 28-Jun-2013
Publisher: American Geophysical Union
Citation: Geophysical Research Letters, 2013, 40 (12), pp. 2918-2922
Abstract: Two types of poleward moving plasma concentration enhancements (PMPCEs) were observed during a sequence of pulsed reconnection events, both in the morning convection cell: Type L (low density) was associated with a cusp flow channel and seems likely to have been produced by ionization associated with particle precipitation, while Type H (high density) appeared to originate from the segmentation of the tongue of ionization by the processes which produced the Type L events. As a result, the Type L and Type H PMPCEs were interspersed, producing a complex density structure which underlines the importance of cusp flow channels as a mechanism for segmenting and structuring electron density in the cusp and shows the necessity of differentiating between at least two classes of electron density patches.
DOI Link: 10.1002/grl.50616
ISSN: 0094-8276
eISSN: 1944-8007
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: © 2013. American Geophysical Union. All Rights Reserved. An edited version of this paper was published by AGU.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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