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DC Field | Value | Language |
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dc.contributor.author | Bhattacharyya, A. | |
dc.contributor.author | Kakad, Amar | |
dc.contributor.author | Gurram, P. | |
dc.contributor.author | Sripathi, S. | |
dc.contributor.author | Sunda, S. | |
dc.date.accessioned | 2017-11-08T07:55:57Z | |
dc.date.accessioned | 2021-02-12T10:12:43Z | - |
dc.date.available | 2017-11-08T07:55:57Z | |
dc.date.available | 2021-02-12T10:12:43Z | - |
dc.date.issued | 2017 | |
dc.identifier.citation | JGR, 121, doi: 10.1002/ 2016JA023478 | en_US |
dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/1102 | - |
dc.description.abstract | An 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.iso | en | en_US |
dc.subject | Equatorial Ionization Anomaly | en_US |
dc.subject | Scintillation | en_US |
dc.subject | Equatorial plasma bubbles | en_US |
dc.subject | EPBs | en_US |
dc.title | Development of intermediate-scale structure at different altitudes within an equatorial plasma bubble: Implications for L-band scintillations | en_US |
dc.type | Article | en_US |
dc.identifier.accession | 091645 | |
Appears in Collections: | UAS_Reprints |
Files in This Item:
File | Description | Size | Format | |
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JGR, 121, 2016JA023478, 2017.pdf | Reprints | 1.23 MB | Adobe PDF | View/Open |
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