Reflection of Atmospherics by the Ionosphere

Abstract

IN a previous letter to NATURE1, evidence was given that some atmospherics are reflected at the ionosphere. Further oscillographs obtained with an improved technique (see Figs. 1 and 2—photographic records on a rapidly moving film of the electric field of atmospherics) have led us to the conclusion that all atmospherics are reflected at the ionosphere. The electrical discharge, which appears to be lightning in all the observations we have made, radiates an electromagnetic disturbance which is propagated as a ground wave, and as a series of sky waves, which are reflected 1, 2... n times at an ionized layer at a height h km. Assuming the velocity of all the waves is that of light, and that the sky waves are optically reflected, then the intervals of time between the arrival of the ground wave and of the sky waves are given by the expression stated in the previous communication1.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    Laby, T. H., Nicholls, F., Nickson, A., and Webster, H. C., NATURE, 139, 837 (1937).

  2. 2

    Wilson, C., Phil. Trans. Roy. Soc., A, 221, 73 (1920).

  3. 3

    Munro, G., and Huxley, L., Rept. Aust. R. R. Bd., No. 5 (1932).

  4. 4

    Boswell, R. W., and Wark, W. J., Quart. J. Roy. Met. Soc, 62, 499 (1936).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

LABY, T., NlCHOLLS, F., NICKSON, A. et al. Reflection of Atmospherics by the Ionosphere. Nature 142, 353–354 (1938). https://doi.org/10.1038/142353a0

Download citation

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.