New method for solving inductive electric fields in the non-uniformly conducting ionosphere

H. Vanhamäki, O. Amm, A. Viljanen

    Research output: Contribution to journalArticlepeer-review

    8 Citations (Scopus)

    Abstract

    We present a new calculation method for solving inductive electric fields in the ionosphere. The time series of the potential part of the ionospheric electric field, together with the Hall and Pedersen conductances serves as the input to this method. The output is the time series of the induced rotational part of the ionospheric electric field. The calculation method works in the time-domain and can be used with non-uniform, time-dependent conductances. In addition, no particular symmetry requirements are imposed on the input potential electric field. The presented method makes use of special non-local vector basis functions called the Cartesian Elementary Current Systems (CECS). This vector basis offers a convenient way of representing curl-free and divergence-free parts of 2-dimensional vector fields and makes it possible to solve the induction problem using simple linear algebra. The new calculation method is validated by comparing it with previously published results for Alfv

    Original languageEnglish
    Pages (from-to)2573-2582
    Number of pages10
    JournalAnnales Geophysicae
    Volume24
    Issue number10
    DOIs
    Publication statusPublished - 2006

    All Science Journal Classification (ASJC) codes

    • Astronomy and Astrophysics
    • Geology
    • Atmospheric Science
    • Earth and Planetary Sciences (miscellaneous)
    • Space and Planetary Science

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