Search Publications

Wave turbulence in magnetized plasmas
DOI: 10.5194/npg-16-83-2009 Bibcode: 2009NPGeo..16...83G

Galtier, S.

The paper reviews the recent progress on wave turbulence for magnetized plasmas (MHD, Hall MHD and electron MHD) in the incompressible and compressible cases. The emphasis is made on homogeneous and anisotropic turbulence which usually provides the best theoretical framework to investigate space and laboratory plasmas. The solar wind and the coron…

2009 Nonlinear Processes in Geophysics
Cluster 35
Plasma waves above the ion cyclotron frequency in the solar wind: a review on observations
DOI: 10.5194/npg-16-319-2009 Bibcode: 2009NPGeo..16..319B

Briand, C.

Since the very beginning of the space venture, discrepancies between hydrodynamic models and observations have raised the attention to the kinetic effects taking place in the interplanetary medium. After discussing some of these constraints, a review on the state of the art knowledge on the waves in the range fci<f<fpe

2009 Nonlinear Processes in Geophysics
Cluster 22
Electrostatic solitary waves in current layers: from Cluster observations during a super-substorm to beam experiments at the LAPD
DOI: 10.5194/npg-16-431-2009 Bibcode: 2009NPGeo..16..431P

Gurnett, D. A.; Lakhina, G. S.; Tsurutani, B. T. +15 more

Electrostatic Solitary Waves (ESWs) have been observed by several spacecraft in the current layers of Earth's magnetosphere since 1982. ESWs are manifested as isolated pulses (one wave period) in the high time resolution waveform data obtained on these spacecraft. They are thus nonlinear structures generated out of nonlinear instabilities and proc…

2009 Nonlinear Processes in Geophysics
Cluster 18
Solar wind interaction with the Earth's magnetosphere: the role of reconnection in the presence of a large scale sheared flow
DOI: 10.5194/npg-16-1-2009 Bibcode: 2009NPGeo..16....1C

Califano, F.; Pegoraro, F.; Faganello, M. +1 more

The Earth's magnetosphere and solar wind environment is a laboratory of excellence for the study of the physics of collisionless magnetic reconnection. At low latitude magnetopause, magnetic reconnection develops as a secondary instability due to the stretching of magnetic field lines advected by large scale Kelvin-Helmholtz vortices. In particula…

2009 Nonlinear Processes in Geophysics
Cluster 11
On the ionospheric coupling of auroral electric fields
DOI: 10.5194/npg-16-365-2009 Bibcode: 2009NPGeo..16..365M

Marklund, G. T.

The quasi-static coupling of high-altitude potential structures and electric fields to the ionosphere is discussed with particular focus on the downward field-aligned current (FAC) region. Results are presented from a preliminary analysis of a selection of electric field events observed by Cluster above the acceleration region. The degree of coupl…

2009 Nonlinear Processes in Geophysics
Cluster 3