High Latitude Sporadic E.

Previous research results on high latitude sporadic E are surveyed, and replotted and displayed in Corrected Geomagnetic Latitude (CGL) AND Corrected Geomagnetic Time (CGT) and related to current research results. Patterns of occurrence of sporadic E are developed, showing percent of time of occurre...

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Bibliographic Details
Main Authors: Pittenger,Eugene W., Gassmann,George J.
Other Authors: AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS
Format: Text
Language:English
Published: 1971
Subjects:
Atmospheric Physics
(*IONOSPHERE
ATMOSPHERE MODELS)
(*IONOSPHERIC DISTURBANCES
ARCTIC REGIONS)
IONOSPHERIC PROPAGATION
HIGH FREQUENCY
AURORAE
MAGNETIC STORMS
AURORAL SPORADIC E LAYER
*SPORADIC E LAYER
Arctic
Online Access:http://www.dtic.mil/docs/citations/AD0722435
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0722435
Description
Summary:Previous research results on high latitude sporadic E are surveyed, and replotted and displayed in Corrected Geomagnetic Latitude (CGL) AND Corrected Geomagnetic Time (CGT) and related to current research results. Patterns of occurrence of sporadic E are developed, showing percent of time of occurrence in location in the CGL/CGT coordinate system, in terms of sporadic E top frequency (fE sub s) and magnetic activity level. Patterns of E sub s occurrence are related to concepts of the auroral oval, polar cap, and substorms. Sporadic E with top frequency = or > MHz is related to substorms. This sporadic E occurs in the late evening-early night sector of the CGL/CGT coordinate system. Implications of sporadic E on high latitude HF propagation during solar cycle maximum and minimum are discussed. (Author)

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