Summary
It is suggested that electrodynamic drifts at right angles to the magnetic field lines in theF2 layer may be replaced by equivalent drifts along the field lines. The suggestion is used in conjunction with a straight field line model of the ionosphere to obtain a qualitative description of the form of an inospheric equilibrium layer formed in absence of production and loss. The layer produced has a latitudinal maximum ofN m , near dip angles of 30°, similar to that of the Appleton anomaly. It is concluded that good agreement would be obtained if electrodynamic drifts were included in attempts to compare theory and experiment above theF2 peak.
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References
R. A. Goldberg, P. C. Kendall andE. R. Schmerling,Geomagnetic control of the electron density in the F region of the ionosphere. J. Geophys. Res.61 (1964), 417.
J. W. King, P. A. Smith, D. Eccles andH. Helm,The structure of the upper ionosphere as observed by the topside sounder satellite Alouette, Radio Res. Station Document RRS/I.M. 94 (1963).
J. W. King, P. A. Smith, D. Eccles, G. F. Fooks andH. Helm,Preliminary investigation of the structure of the upper ionosphere as observed by the topside sounder satellite Alouette, Proc. Roy. Soc. London [A]281 (1964), 464.
V. C. A. Ferraro Diffusion of ions in the ionosphere, Terr. Mag.50 (1945), 215.
D. F. Martyn,Atmospheric tides in the ionosphere. I. Solar tides in the F2 region, Proc Roy. Soc. London [A]189, (1947), 241.
P. C. Kendall andD. W. Windle,Combined effects of drift and diffusion in the F2 region, Nature London203 (1964), 281.
Sheila Croom, Audrey Robbins andJ. O. Thomas,Two anomalies in the behaviour of the F2 layer of the ionosphere, Nature London184 (1959), 2003.
R. Courant andD. Hilbert,Methods of mathematical physics, Vol. II (Interscience 1962), 198.
J. E. C. Gliddon andP. C. Kendall,The effects of diffusion and of attachmentlike recombination on the F2 region, J. Geophys. Res.65 (1960), 2279.
H. Rishbeth,A time-varying model of the ionospheric F2-layer, J. Atmos. Terr. Phys.26 (1964), 657.
E. V. Appleton,Two anomalies of the ionosphere, Nature London157 (1964), 691.
D. F. Martyn,Anomalous behaviour of the F2 region of the ionosphere, Nature London155 (1945), 363.
R. G. Baxter andP. C. Kendall,Diffusive equilibrium of the topside electron density in the F2 region, J. Atmos. Terr. Phys.27 (1965), 129.
R. A. Goldberg,The effect of a variable electron temperature on the equatorial electron density distribution in the upper ionosphere, J. Geophys. Res.70 (1965), 655.
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Kendall, P.C., Windle, D.W. A qualitative method of estimating the interaction between diffusion and electrodynamic drift underF2 layer conditions. PAGEOPH 60, 117–125 (1965). https://doi.org/10.1007/BF00874813
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DOI: https://doi.org/10.1007/BF00874813