What is it about?
This publication describes another way how to search for the optimum solar activity index for investigations of long-term trends in the main ionospheric parameter,critical frequecy foF2, which corresponds to the maximum electron density in the ionosphere.
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Why is it important?
This topic is kust now a hot topic, because it was found that application of different solar activity indices in calculating the long-term trend in foF2 can result in substantially different trends. Trends in foF2 excite trends in the total electron content (TEC), which affects propagation of GPS signals and their applications e.g. in positioning.
Perspectives
Results of this publication can help to solve the problem of optimum solar activity index for ionospheric studies and to change the current paradigm.
Dr Jan Lastovicka
Institute of Atmospheric Physics ASCR
Read the Original
This page is a summary of: Extending the analysis on the best solar activity proxy for long-term ionospheric investigations, Proceedings of the Royal Society A Mathematical Physical and Engineering Sciences, August 2023, Royal Society Publishing,
DOI: 10.1098/rspa.2023.0225.
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