Accession Number : AD0605269

Title :   IONOSPHERIC PERTURBATIONS, SOLAR FLARES, AND GEOMAGNETIC STORMS, CORRELATIONS OBSERVED BY OBLIQUE LONG-RANGE HIGHFRFFREQUENCY PROBING.

Descriptive Note : Environmental research papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Baker,Helen R. ; Reilly,Alfred E.

Report Date : JUN 1964

Pagination or Media Count : 72

Abstract : Highly stable experimental hf radio links have been established over long paths by means of ionospheric propagation. The received signal has been analyzed and its variability characterized as to type. It has been possible to correlate the occurrence of certain types of characteristic variations with the occurrence of certain natural events such as solar flares and geomagnetic storms. Thus it appears that these phenomena are associated with variations in the electromagnetic properties of tt foof the ionosphere which perturb the signal propagating through it. Some cases appear to be easily explainable by means of fairly simple models whereas others are unexplained but are worthy of further study since their eventual explanation could be of great interest. (Author)

Descriptors :   (*IONOSPHERIC PROPAGATION, RADIO INTERFERENCE), (*SOLAR FLARES, RADIO INTERFERENCE), (*MAGNETIC STORMS, RADIO INTERFERENCE), HIGH FREQUENCY, RADIO WAVES, ATTENUATION, IONOSPHERIC DISTURBANCES, CORRELATION TECHNIQUES

Distribution Statement : APPROVED FOR PUBLIC RELEASE