Letter | Published:

Sudden Increase in the Ionosphere F2-Region Ionization associated with Solar Flares

Nature volume 193, pages 462463 (03 February 1962) | Download Citation

Subjects

Abstract

Knecht and Davies1 reported recently two cases of sudden increase in the F2-layer ionization, associated with solar flares. With the previous communications of Dieminger2, Minnis and Bazzard3 and Harrison4 a total of five cases has been reported up to now. We present five more cases, observed at São Paulo during November 20, 1960, and July 11, 12, 18 and 21, 1961. We are ignoring here another event associated with the 3 + flare of July 23. On that day an ionospheric storm was in progress, causing very erratic behaviour of the F-layer.

Access optionsAccess 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.

    , and , Nature, 190, 797 (1961).

  2. 2.

    , and , J. Atom. Terr. Phys., 1, 42 (1950).

  3. 3.

    , and , Nature, 181, 690 (1958).

  4. 4.

    , Nature, 186, 228 (1960).

  5. 5.

    , Physics of the Upper Atmosphere, 435 (Acad. Press, New York and London, 1960).

Download references

Author information

Affiliations

  1. Depto. de Física, Escola Politécnica, Universidade de São Paulo.

    • L. Q. ORSINI
    •  & R. H. MAZZILLI

Authors

  1. Search for L. Q. ORSINI in:

  2. Search for R. H. MAZZILLI in:

About this article

Publication history

Published

DOI

https://doi.org/10.1038/193462a0

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.