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Title: Frontal and non-frontal characteristics of mid-latitude spread-F structures
Authors: Bowman, G G
Issue Date: Apr-1990
Publisher: NISCAIR-CSIR, India
Abstract: The experimental evidence for frontal and non-frontal structures associated with mid-latitude spread-F occurrence is presented and discussed. The evidence suggests that on most occasions frontal travelling ionospheric disturbances (TIDs) are primarily responsible for the recorded spread-F traces. However, at times non-frontal movements are detected due possibly to interference effects from TIDs travelling in different directions, or from the influence of small-scale structures which are also present at these times. At other times large-scale non-frontal "tongues" of ionization (of which the occurrence rate is somewhat uncertain) have also been detected when spread-F traces are observed.
Page(s): 62-68
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.19(2) [April 1990]

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