The production and analysis of transmission ionograms |
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| Authors: | J E Titheridge and M L Heron |
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| Institution: | Radio Research Centre, University of Auckland, New Zealand |
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| Abstract: | A transmission ionogram gives the group delay for radio pulses transmitted vertically through the ionosphere, as the radio frequency is varied. These virtual height curves may also be produced from fixed-frequency observations on orbiting satellites. Analysis of such records can give the thickness of the peak of the ionosphere, a quantity not readily obtained by other techniques. Using the ground reflection trace on topside ionograms, a rapid two-parameter analysis gives the peak thickness to better than 10 per cent. |
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