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Updated: Sep 20, 2025

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Published on: July 30, 2020
How deterministic is the Earth ionosphere's response to solar activity?
1Math and Natural Science Department, Miami Dade College, Padron Campus, Miami, FL 33135 USA.
Abstract:
This contribution is aimed at an analysis of the dynamics of free-electron density fluctuations in the ionospheric critical plasma frequency f0F2 by using some tools from the theory of nonlinear dynamical systems. The results suggest the existence of low-dimensional attractors that point to a characterization of the free electron density fluctuations in the f0F2 as a deterministic chaotic system. The study carried out focused on the response of the ionosphere to solar activity as a function of the ascending and descending phases of the solar cycle.
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