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Annales Geophysicae An interactive open-access journal of the European Geosciences Union
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Volume 28, issue 7
Ann. Geophys., 28, 1431–1439, 2010
https://doi.org/10.5194/angeo-28-1431-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.
Ann. Geophys., 28, 1431–1439, 2010
https://doi.org/10.5194/angeo-28-1431-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

  12 Jul 2010

12 Jul 2010

Developing an ionospheric map for South Africa

D. I. Okoh1,2, L. A. McKinnell1,2, and P. J. Cilliers1 D. I. Okoh et al.
  • 1Hermanus Magnetic Observatory, P.O. Box 32, Hermanus, South Africa
  • 2Department of Physics and Electronics, Rhodes University, P.O. Box 24, Grahamstown, South Africa

Abstract. The development of a map of the ionosphere over South Africa is presented in this paper. The International Reference Ionosphere (IRI) model, South African Bottomside Ionospheric Model (SABIM), and measurements from ionosondes in the South African Ionosonde Network, were combined within their own limitations to develop an accurate representation of the South African ionosphere. The map is essentially in the form of a computer program that shows spatial and temporal representations of the South African ionosphere for a given set of geophysical parameters. A validation of the map is attempted using a comparison of Total Electron Content (TEC) values derived from the map, from the IRI model, and from Global Positioning System (GPS) measurements. It is foreseen that the final South African ionospheric map will be implemented as a Space Weather product of the African Space Weather Regional Warning Centre.

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