Browsing by Author "Seyler, C. E."
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Item Open Access A renormalization group approach to estimation of anomalous diffusion in the unstable equatorial F region(American Geophysical Union, 1998-11-01) Hysell, D. L.; Seyler, C. E.An expression is derived for the anomalous diffusion coefficient associated with collisional interchange turbulence in the equatorial F region ionosphere. Waves with ω ≪ Vin ≪ Ωi are considered. The calculation makes use of the renormalization group method, following closely that of Kichatinov [1985]. The calculation is applied to the problem of plasma waves in the equatorial F region ionosphere generated by the ionospheric interchange instability. Approximations appropriate for the geometry of that problem are incorporated into the calculation. Using a model spectrum of the irregularities based on in situ satellite observations, we calculate that the anomalous diffusion seen by large‐scale plasma waves can be 5 orders of magnitude larger than the ambipolar diffusion coefficient.