APPARENT POLEWARD MOTION OF ONSETS OF AURORAL ABSORPTION EVENTS

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Authors
  1. Jelly, D.H.
Corporate Authors
Defence Research Telecommunications Establishment, Ottawa ONT (CAN)
Abstract
A study is made of nighttime auroral radio absorption events observed by riometers in the latitude range of 67-76 degrees. Individual events are shown to extend over this range with a tendency to occur later at higher latitudes. If the observed onset delay time is interpreted as a poleward expansion of the disturbance, the corresponding average velocity is 0.8 km/s. This velocity is consistent with the poleward motion, observed during visual auroral substorms. The absorption events are compared statistically with energetic electron events detected by the Alouette I. satellite.
Keywords
Radio waves;Absorption;Aurora;Disturbances
Date of publication
01 Jan 1968
Number of Pages
8
Reprinted from
Canadian Journal of Physics, v.46, 33-37, 1968
DSTKIM No
68-06686
CANDIS No
145075
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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