Measurements of the initial radii of the ionization columns of bright meteors |
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| Authors: | WJ Baggaley GW Fisher |
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| Institution: | Physics Department, University of Canterbury, Christchurch, New Zealand |
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| Abstract: | A multi-wavelength radar backscatter study of the echo characteristics of radio-meteors has yielded measurements of the height dependence of the radii, ri, of overdense plasma meteor columns. For electron line densities α ～ 1015 m?1 it is found that ri ∝ ??0.63 (? atmospheric density) with ri = 5 m at a height of 100 km. |
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