The present status of understanding and modeling of the variation of electron and ion temperatures with solar activity is reviewed. All atmospheric and ionospheric densities and temperatures are positively correlated with solar activity except the electron temperature, which exhibits a rather complex variation pattern during a solar cycle. The ion temperature at low altitudes closely follows the variation patterns of the neutral temperature. The electron temperature at high altitudes increases with increasing solar activity; the increase is larger during day than during night and exhibits a latitudinal variation. At low altitudes during daytime, tha amplitude of the seasonal variation of the electron temperature increases toward the solar maximum. At 400 km during daytime, the summer electron temperatures for Millstone Hill increase slightly toward higher solar activities, whereas the winter temperatures decrease distinctly. For Arecibo, an opposite trend is noticeable.


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    Title :

    Solar activity variation of ionospheric plasma temperatures


    Contributors:
    Bilitza, D. (author) / Hoegy, W. R. (author)

    Published in:

    Publication date :

    1990-01-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English


    Keywords :


    Solar activity variation of ionospheric plasma temperatures

    Bilitza, D. / Hoegy, W.R. | Elsevier | 1989


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    Morton, Thomas / Ferguson, D / Hillary, G | AIAA | 1995


    Ionospheric Effects of Solar Activity

    Mclntosh, Patrick S. / Dryer, Murray | AIAA | 1972