spatial distribution of rolled up kelvin-helmholtz vortices at earth's dayside and flank magnetopause

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ID: 190673
2012
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Abstract
The Kelvin-Helmholtz Instability (KHI) can drive waves at the magnetopause. These waves can grow to form rolled-up vortices and facilitate transfer of plasma into the magnetosphere. To investigate the persistence and frequency of such waves at the magnetopause we have carried out a survey of all Double Star 1 magnetopause crossings, using a combination of ion and magnetic field measurements. Using criteria originally used in a Geotail study made by Hasegawa et al. (2006) (forthwith referred to as H2006), 17 candidate events were identified from the entire TC-1 mission (covering ~623 orbits where the magnetopause was sampled), a majority of which were on the dayside of the terminator. The relationship between density and shear velocity was then investigated, to identify the predicted signature of a rolled up vortex from H2006 and all 17 events exhibited some level of rolled up behavior. The location of the events had a clear dawn-dusk asymmetry, with 12 (71%) on the post noon, dusk flank suggesting preferential growth in this region.
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taylor2012annalesspatial Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;M. G. G. T. Taylor;H. Hasegawa;B. Lavraud;T. Phan;C. P. Escoubet;M. W. Dunlop;Y. V. Bogdanova;A. L. Borg;M. Volwerk;J. Berchem;O. D. Constantinescu;J. P. Eastwood;A. Masson;H. Laakso;J. Soucek;J. Soucek;A. N. Fazakerley;H. U. Frey;E. V. Panov;C. Shen;J. K. Shi;D. G. Sibeck;Z. Y. Pu;J. Wang;J. A. Wild
Journal journal of food measurement and characterization
Year 2012
DOI
10.5194/angeo-30-1025-2012
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