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Solar zenith angle and frequency dependence of ionosphericD-region absorption

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Abstract

In this paper, the results of a series of extensive measurements of multifrequency radio wave absorption in theD-region of the ionosphere during the epoch of the minium period of the solar cycle are presented. Experimental results for Udaipur, a low latitude station (24°35′N) are compared with the theoretically expected results. It is found that the experimental values of frequency indexm and cos χ indexn agree well with those obtained theoretically. The mean values ofm andn for the whole period of observation are found to be 1·76 and 1·4 respectively. The seasonal variation of the values ofm andn is also discussed.

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  1. S L Jain

    Present address: Radio Science Division, National Physical Laboratory, 110 012, New Delhi

Authors and Affiliations

  1. Department of Physics, University of Udaipur, 313 001, Udaipur

    S L Jain & R K Rai

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  1. S L Jain
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  2. R K Rai
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Jain, S.L., Rai, R.K. Solar zenith angle and frequency dependence of ionosphericD-region absorption. Proc. Indian Acad. Sci. (Earth Planet Sci.) 88, 51–56 (1979). https://doi.org/10.1007/BF02910952

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  • DOI: https://doi.org/10.1007/BF02910952

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