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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 19, issue 10/12
Ann. Geophys., 19, 1463–1470, 2001
https://doi.org/10.5194/angeo-19-1463-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue: CLUSTER

Ann. Geophys., 19, 1463–1470, 2001
https://doi.org/10.5194/angeo-19-1463-2001
© Author(s) 2001. This work is distributed under
the Creative Commons Attribution 3.0 License.

  30 Sep 2001

30 Sep 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. Dandouras5 L. Rezeau et al.
  • 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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