MOTION OF CLOUDS OF ABNORMAL IONIZATION IN THE AURORAL AND POLAR REGIONS

Autor:	E. L. Hagg, G. H. Hanson
Rok vydání:	1954
Předmět:	Physics Auroral zone Ionization General Physics and Astronomy Motion (geometry) Polar Geophysics Ionosphere Atmospheric sciences Sporadic E propagation F region
Zdroj:	Canadian Journal of Physics. 32:790-798
ISSN:	1208-6045 0008-4204
DOI:	10.1139/p54-087
Popis:	Examination of records taken in rapid succession at ionospheric stations in Northern Canada has revealed three distinctive types of echoes corresponding to clouds of ionization in motion. One type is ascribed to clouds of sporadic E moving horizontally over the station. The second type is believed to be due to clouds of ionization descending vertically from the F region to the E region, while the third type appears to be from clouds moving at extremely high velocities in the E region. Reflections of the second and third types have been seen only at stations in or north of the auroral zone. The characteristics of the echoes, the velocities of the clouds, and other associated phenomena are discussed.
Databáze:	OpenAIRE
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