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Ionospheric tomography

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Inverse Methods

Part of the book series: Lecture Notes in Earth Sciences ((LNEARTH,volume 63))

Abstract

In this paper, it is shown how computerized tomography technique has been applied to reconstruct two-dimensional electron density distribution of the ionosphere. The geometrical constraints of ionospheric tomography make the inversion an ill-posed problem. To compensate for incomplete measurements, incorporation of a priori information is necessary. Further, reguralization techniques are effective. Reconstructions from actual TEC observations proved the usefulness of algorithms. In many cases, the reconstructed distributions were compared with other observations by using ionosondes or an incoherent scatter radar (see pages 106–110 of Davies (1990) for the technique). The reconstructions agreed reasonably with other observations.

The observation system to acquire data for ionospheric tomography is much less expensive than other observation systems. Moreover, the receivers are transportable. Thus many observation chains for tomography were established and are planning to be established at different longitudes. Cooperation in analyzing data obtained from observation chains which were (or will be) simultaneously operated at different longitudes would provide new information on the large-scale structures and dynamics of the ionosphere.

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Authors and Affiliations

  1. Communications Research Laboratory, Tokyo, Japan

    Manabu Kunitake

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  1. Manabu Kunitake
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Bo Holm Jacobsen Klaus Mosegaard Paolo Sibani

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© 1996 Springer-Verlag

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Kunitake, M. (1996). Ionospheric tomography. In: Jacobsen, B.H., Mosegaard, K., Sibani, P. (eds) Inverse Methods. Lecture Notes in Earth Sciences, vol 63. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0011781

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  • DOI: https://doi.org/10.1007/BFb0011781

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-61693-1

  • Online ISBN: 978-3-540-70687-8

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