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Title: Post-midnight Equatorial Spread-F
Authors: Rastogi, R G
Issue Date: Feb-1986
Publisher: NISCAIR-CSIR, India
Abstract: The comparison of the scintillations of VHF radio beacons from geostationary satellite Geos-1 (74.9°W) and the vertical incidence ionograms at Huancayo (75.3°W) have shown that the diffused echoes observed on the ionograms during late night or early morning hours are not due to oblique reflections from new ionization but due to in situ plasma irregularities (bubbles) present on the path of satellite-to-ground radio path. These events are preceded with rapid rise of the F-Iayer. Multi-satellite and multi-station radio scintillation records indicate the presence of a westward movement of the bubbles corresponding on eastward electric field during these not very normal post-midnight events.
Page(s): 10-16
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.15(1) [February 1986]

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