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dc.contributor.authorBhattacharyya, A.
dc.contributor.authorKakad, Amar
dc.contributor.authorGurram, P.
dc.contributor.authorSripathi, S.
dc.contributor.authorSunda, S.
dc.date.accessioned2017-11-08T07:55:57Z
dc.date.accessioned2021-02-12T10:12:43Z-
dc.date.available2017-11-08T07:55:57Z
dc.date.available2021-02-12T10:12:43Z-
dc.date.issued2017
dc.identifier.citationJGR, 121, doi: 10.1002/ 2016JA023478en_US
dc.identifier.urihttp://localhost:8080/xmlui/handle/123456789/1102-
dc.description.abstractAn important aspect of the development of intermediate-scale length (approximately hundred meters to few kilometers) irregularities in an equatorial plasma bubble (EPB) that has not been considered in the schemes to predict the occurrence pattern of L-band scintillations in low-latitude regions is how these structures develop at different heights within an EPB as it rises in the postsunset equatorial ionosphere due to the growth of the Rayleigh-Taylor instability. Irregularities at different heights over the dip equator map to different latitudes, and their spectrum as well as the background electron density determine the strength of L-band scintillations at different latitudes. In this paper, VHF and L-band scintillations recorded at different latitudes together with theoretical modeling of the scintillations are used to study the implications of this structuring of EPBs on the occurrence and strength of L-band scintillations at different latitudes. Theoretical modeling shows that while S4 index for scintillations on a VHF signal recorded at an equatorial station may be >1, S4 index for scintillations on a VHF signal recorded near the crest of the equatorial ionization anomaly (EIA) generally does not exceed the value of 1 because the intermediate-scale irregularity spectrum at F layer peak near the EIA crest is shallower than that found in the equatorial F layer peak. This also explains the latitudinal distribution of L-band scintillations. Thus, it is concluded that there is greater structuring of an EPB on the topside of the equatorial F region than near the equatorial F layer peak.en_US
dc.language.isoenen_US
dc.subjectEquatorial Ionization Anomalyen_US
dc.subjectScintillationen_US
dc.subjectEquatorial plasma bubblesen_US
dc.subjectEPBsen_US
dc.titleDevelopment of intermediate-scale structure at different altitudes within an equatorial plasma bubble: Implications for L-band scintillationsen_US
dc.typeArticleen_US
dc.identifier.accession091645
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