Sudden frequency deviations, solar extreme ultraviolet bursts, and solar radio bursts
By: D.W. Richards
Series: Environmental Research Papers -- no. 363; Environmental research papers (Hanscom AFB, Mass.) -- no. 363
Publisher: United States Air Force, Air Force Systems Command, Air Force Cambridge Research Laboratories, Ionospheric Physics Laboratory
Published: 1971
Place of publication: Bedford, Mass
Language: eng
Number of pages: 23
Subjects: Solar radio emission; Solar activity; Solar radio bursts; Radio frequency modulation
Description: An investigation has been made of the interrelationship of solar extreme ultraviolet (EUV) bursts, solar radio bursts, and terrestrial ionospheric sudden frequency deviations (SFD's). No direct general relationships between radio spectra or burst intensities and SFD incidence or magnitude (Delta f) have been found. If the EUV enhancement is greater than 3 percent at Lambda 304 or Lambda 630 A, there is an 85 percent probability of occurrence of an SFD. Time of maxima of EUV and radio bursts are found to coincide extremely well. (Author).
Notes: "AFCRL 71-0392."

"9 July 1971."

"Ionospheric Physics Laboratory Project 4643."

Includes bibliographical references (p. 23).