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Title: Influence of geomagnetic activity on the occurrence of midlatitude ionogram-recorded spread-F
Authors: Bowman, G G
Mortimer, I K
Issue Date: Feb-2003
Publisher: NISCAIR-CSIR, India
Abstract: Delayed spread-F occurrence as recorded by ionograms, following geomagnetic activity (GA) has been investigated using data from 88 stations located around the world. The spread-F occurrence is delayed progressively from one to three Days, from subauroral to midlatitude regions. The equatorial latitudes show suppressed activity. An examination of daily spread-F occurrence values relative to the AE index reveals not only a main delay of one day, but also delays of two and three days. These delays involve prinicipally GA occurring around 0600 hrs LT.
Page(s): 16-20
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.32(1) [February 2003]

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