Number of the records: 1
Spatial distribution of rolled up Kelvin-Helmholtz vortices at Earth's dayside and flank magnetopause
- 1.
SYSNO ASEP 0378978 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Spatial distribution of rolled up Kelvin-Helmholtz vortices at Earth's dayside and flank magnetopause Author(s) Taylor, M. G. G. T. (NL)
Hasegawa, H. (JP)
Lavraud, B. (FR)
Phan, T. (US)
Escoubet, C. P. (NL)
Dunlop, M. W. (GB)
Bogdanova, Y.V. (GB)
Borg, A. L. (NL)
Volwerk, M. (AT)
Berchem, J. (US)
Constantinescu, O. D. (US)
Eastwood, J. P. (GB)
Masson, A. (NL)
Laakso, H. (NL)
Souček, Jan (UFA-U) RID, ORCID
Fazakerley, A. N. (GB)
Frey, H. U. (US)
Panov, E.V. (AT)
Shen, C. (CN)
Shi, J. K. (CN)
Sibeck, D. G. (US)
Pu, Z. Y. (CN)
Wang, J. (CN)
Wild, J. A. (GB)Source Title Annales Geophysicae. - : Copernicus - ISSN 0992-7689
Roč. 30, č. 6 (2012), s. 1025-1035Number of pages 11 s. Language eng - English Country DE - Germany Keywords Magnetospheric physics ; Magnetopause, cusp, and boundary layers ; Plasma waves and instabilities ; Solar wind-magnetosphere interactions Subject RIV BN - Astronomy, Celestial Mechanics, Astrophysics Subject RIV - cooperation Plasma and Gas Discharge Physics Institutional support UFA-U - RVO:68378289 UT WOS 000305838500012 DOI 10.5194/angeo-30-1025-2012 Annotation 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 similar to 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. Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2013
Number of the records: 1