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Ann. Geophys., 19, 1463-1470, 2001
www.ann-geophys.net/19/1463/2001/
© European Geosciences Union 2001

A case study of low-frequency waves at the magnetopause

L. Rezeau¹, F. Sahraoui², E. d’Humières², G. Belmont², T. Chust², N. Cornilleau-Wehrlin², L. Mellul², O. Alexandrova², E. Lucek³, P. Robert², P. Décréau⁴, P. Canu², and I. Dandouras^5
1CETP/UPMC, 10–12 avenue de l’Europe, 78140 Vélizy, France
²CETP/UVSQ, 10–12 avenue de l’Europe, 78140 Vélizy, France
³Space and Atmospheric Group, The Blackett laboratory, Imperial College, Prince Consort Rd, London, UK
⁴LPCE, 3A avenue de la recherche scientifique, 45071 Orléans Cedex 2, France
⁵CESR, 9 avenue du Colonel Roche, 31028 Toulouse cedex 4, France

Abstract. We present the study of one of the first magnetopause crossings observed by the four Cluster spacecraft simultaneously, on 10 December 2000. Although the delays between the crossings are very short, the features of the boundary appear quite different as seen by the different spacecraft, strongly suggesting the presence of a local curvature of the magnetopause at that time. The small-scale fluctuations observed by the STAFF search-coil experiment are placed in relation to this context. A preliminary investigation of their behaviour on the boundary and in the neighbourhood magnetosheath is performed in comparison with the theoretical model of Belmont and Rezeau (2001), which describes the interaction of waves with the boundary.

Key words. Space plasma physics (transport processes, discontinuities, turbulence)

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Citation: Rezeau, L., Sahraoui, F., d’Humières, E., Belmont, G., Chust, T., Cornilleau-Wehrlin, N., Mellul, L., Alexandrova, O., Lucek, E., Robert, P., Décréau, P., Canu, P., and Dandouras, I.: A case study of low-frequency waves at the magnetopause, Ann. Geophys., 19, 1463-1470, 2001.   Bibtex   EndNote   Reference Manager