What is it about?
The bulk of the ionosphere fits a simple parabolic electron density model. The three major parameters in that model are peak electron density, height and thickness. Under the influence of different drivers of ionospheric variability , there are relationships between these three parameters such that the ionosphere compresses from the top resulting in an increase in peak electron density, during a fall in peak height and narrowing in thickness followed by a subsequent recovery. This model has previously been used by the author to accurately calculate changes in the doppler shift of HF radio waves reflecting from the constantly changing ionosphere.
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Why is it important?
The paper shows three independent drivers of significant ionospheric variability produce a common ionospheric response which has not been previously been recognised.
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This page is a summary of: The observed compression and expansion of theF2ionosphere as a major component of ionospheric variability, Radio Science, May 2016, American Geophysical Union (AGU),
DOI: 10.1002/2016rs006036.
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