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    Dawn-Dusk Asymmetries at the Terrestrial Magnetopause

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    Haaland(2017).pdf (816.0Kb)
    Authors
    Haaland, S.
    Hasegawa, H.
    De Keyser, J.
    Maes, L.
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    Discipline
    Physical sciences
    Audience
    Scientific
    Date
    2017
    Metadata
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    Description
    The terrestrial magnetopause is a thin current sheet forming the boundary between the solar wind and the Earth’s magnetosphere. It is thus a key region for the transfer of energy and momentum from the solar wind to the magnetosphere. In this chapter, we show observations suggesting significant and persistent differences between the dusk and dawn flank in many macroscopic parameters and properties of the magnetopause. Some of the asymmetries can be explained by differences in boundary conditions, in particular, properties of the adjacent magnetosheath, which, in turn, is largely dictated by interaction between the bow shock and the interplanetary magnetic field. Asymmetries in the occurrence probability of Kelvin‐Helmholtz waves, which seem to favor the dusk magnetopause flank, are also probably related to magnetosheath properties. There are also indications that an asymmetric ring current inside the magnetosphere can contribute to a corresponding magnetopause asymmetry, since an enhanced ring current will cause a larger magnetic shear across the magnetopause.
    Citation
    Haaland, S.; Hasegawa, H.; De Keyser, J.; Maes, L. (2017). Dawn-Dusk Asymmetries at the Terrestrial Magnetopause. (Haaland, S., Ed.), Dawn-Dusk Asymmetries in Planetary Plasma Environments, 73-84, DOI: 10.1002/9781119216346.ch6.
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/6314
    doi: http://dx.doi.org/10.1002/9781119216346.ch6
    Type
    Book chapter
    Peer-Review
    Yes
    Language
    eng
    Links
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