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    Spatial gradients in the plasmasphere form Cluster

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    Darrouzet(2006b).pdf (680.5Kb)
    Authors
    Darrouzet, F.
    De Keyser, J.
    Décréau, P.M.E.
    Lemaire, J.F.
    Dunlop, M.W.
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    Discipline
    Physical sciences
    Subject
    Carrier concentration
    Geometry
    Magnetic fields
    Plasma density
    Plasma sources
    Density distribution
    Density gradients
    Density structure
    Plasmasphere
    Spatial gradients
    Earth atmosphere
    electron density
    geomagnetic field
    plasma
    Audience
    Scientific
    Date
    2006
    Metadata
    Show full item record
    Description
    The Cluster mission allows the study of the plasmasphere with four-point measurements, including its overall density distribution, plasmaspheric plumes close to the plasmapause, and density irregularities inside the plasmasphere. The purpose of this letter is to examine the geometry and orientation of the overall density structure and of the magnetic field. We present a typical Cluster plasmasphere crossing for which we compute the four-point spatial gradient of the electron density and the magnetic field strength, and we compare the direction of both gradients with the local field vector. We discuss the role of the gradient components along and transverse to field lines; transverse density gradients, in particular, are found to suggest the presence of azimuthal density variations.
    Citation
    Darrouzet, F.; De Keyser, J.; Décréau, P.M.E.; Lemaire, J.F.; Dunlop, M.W. (2006). Spatial gradients in the plasmasphere form Cluster. , Geophysical Research Letters, Vol. 33, Issue 8, L08105, DOI: 10.1029/2006GL025727.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/4490
    doi: http://dx.doi.org/10.1029/2006GL025727
    scopus: 2-s2.0-33745442292
    Type
    Article
    Peer-Review
    Yes
    Language
    eng
    Links
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