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Farrugia, C.J.; Gratton, F.T.; Torbert, R.B.; Bender, L.; Gnavi, G.; Ogilvie, K.W.; Erkaev, N.V.; Lepping, R.P.; Stauning, P. "On the dependence of dayside Kelvin-Helmholtz activity on IMF orientation" (2003) Advances in Space Research. 31(4):1105-1110
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Abstract:

With its ∼ 12 h-long period of strongly northward magnetic field, the coronal mass ejection which passed Earth on April 11, 1997 affords an excellent opportunity of studying Kelvin-Helmholtz (KH) activity at the dayside magnetopause as a function of the clock angle, , of the interplanetary field (IMF). A correlation between the wavelength of the KH waves and θ may be expected on the basis of our recent model, where activity is generated in strips which broaden as θ decreases. We identify two 2-hour long intervals of small, but different, clock angles, and make a preliminary test of model predictions, using records from two ground magnetometer chains, both on the dayside. Taking into account the local time of the magnetometer arrays and the geometry of the KH-active strips, we show that the resonant stations measured considerably more spectral power density in the 3-4 mHz range during the phase with smaller θ. Moreover, as θ increases, the spectral power spectrum shifted to higher frequencies that were almost absent for smaller θ. © 2003 COSPAR. Published by Elsevier Science Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:On the dependence of dayside Kelvin-Helmholtz activity on IMF orientation
Autor:Farrugia, C.J.; Gratton, F.T.; Torbert, R.B.; Bender, L.; Gnavi, G.; Ogilvie, K.W.; Erkaev, N.V.; Lepping, R.P.; Stauning, P.
Filiación:Space Science Center, University of New Hampshire, Durham, NH, United States
Instituto de Fisica del Plasma, CONICET - FCEyN/UBA, Buenos Aires 1428, Argentina
NASA, Goodard Space Flight Center, Greenbelt, MD, United States
Institute of Compuational Modeling, Russian Academy of Sciences, Krasnoyarsk 36 660036, Russian Federation
Danish Meteorological Institute, Copenhagen, Denmark
Palabras clave:Magnetic field effects; Magnetometers; Power density; Space research; corona; geomagnetic field; Kelvin-Helmholtz instability; solar activity
Año:2003
Volumen:31
Número:4
Página de inicio:1105
Página de fin:1110
DOI: http://dx.doi.org/10.1016/S0273-1177(02)00889-X
Título revista:Advances in Space Research
Título revista abreviado:Adv. Space Res.
ISSN:02731177
CODEN:ASRSD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02731177_v31_n4_p1105_Farrugia

Referencias:

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Citas:

---------- APA ----------
Farrugia, C.J., Gratton, F.T., Torbert, R.B., Bender, L., Gnavi, G., Ogilvie, K.W., Erkaev, N.V.,..., Stauning, P. (2003) . On the dependence of dayside Kelvin-Helmholtz activity on IMF orientation. Advances in Space Research, 31(4), 1105-1110.
http://dx.doi.org/10.1016/S0273-1177(02)00889-X
---------- CHICAGO ----------
Farrugia, C.J., Gratton, F.T., Torbert, R.B., Bender, L., Gnavi, G., Ogilvie, K.W., et al. "On the dependence of dayside Kelvin-Helmholtz activity on IMF orientation" . Advances in Space Research 31, no. 4 (2003) : 1105-1110.
http://dx.doi.org/10.1016/S0273-1177(02)00889-X
---------- MLA ----------
Farrugia, C.J., Gratton, F.T., Torbert, R.B., Bender, L., Gnavi, G., Ogilvie, K.W., et al. "On the dependence of dayside Kelvin-Helmholtz activity on IMF orientation" . Advances in Space Research, vol. 31, no. 4, 2003, pp. 1105-1110.
http://dx.doi.org/10.1016/S0273-1177(02)00889-X
---------- VANCOUVER ----------
Farrugia, C.J., Gratton, F.T., Torbert, R.B., Bender, L., Gnavi, G., Ogilvie, K.W., et al. On the dependence of dayside Kelvin-Helmholtz activity on IMF orientation. Adv. Space Res. 2003;31(4):1105-1110.
http://dx.doi.org/10.1016/S0273-1177(02)00889-X