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

H. Vanhamäki, O. Amm, A. Viljanen

Research output: Contribution to journalArticle

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 - Jan 1 2006

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ionospheres
electric field
ionosphere
conduction
electric fields
ionospherics
time series
symmetry
induction
divergence
algebra
requirements
method
output
calculation method

All Science Journal Classification (ASJC) codes

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

Cite this

New method for solving inductive electric fields in the non-uniformly conducting ionosphere. / Vanhamäki, H.; Amm, O.; Viljanen, A.

In: Annales Geophysicae, Vol. 24, No. 10, 01.01.2006, p. 2573-2582.

Research output: Contribution to journalArticle

Vanhamäki, H. ; Amm, O. ; Viljanen, A. / New method for solving inductive electric fields in the non-uniformly conducting ionosphere. In: Annales Geophysicae. 2006 ; Vol. 24, No. 10. pp. 2573-2582.
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