Total electron content - A key parameterin propagation: measurement and usein ionospheric imaging

L. Kersley, D. Malan, S. E. Pryse, L. R. Cander, R. A. Bamford, A. Belehaki, R. Leitinger, S. M. Radicella, C. N. Mitchell, P. S. J. Spencer


The paper reports on a series of studies carried out within the COST 271 Action relating to the measurement and use of Total Electron Content (TEC) of the ionosphere over North West Europe.
Total electron content is a very important parameter for the correction of propagation effects on applied radio systems so that it is vital to have confidence in the experimental measurements and the resultant products derived as aids for the practical user. Comparative investigations have been carried out using TEC values from several different sources. It was found that in general there was broad statistical
agreement between the data sets within the known limitations of the techniques, though discrepancies were identified linked to steep ionospheric gradients at the onset of geomagnetic storm disturbance and in the vicinity of the main trough. The paper also reviews recent progress in the development
of tomographic inversion techniques that use total electron content measurements to image the ionosphere as an aid to various radio systems applications.

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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X