Browsing Physics by Author "Amabayo, Emirant B."
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Assessment of scintillation proxy maps for a scintillation study during geomagnetically quiet and disturbed conditions over Uganda
Amabayo, Emirant B.; Jurua, Edward; Cilliers, Pierre J. (Journal of Atmospheric and Solar–Terrestrial Physics, 2016-12)The objective of this paper is demonstrate the validity and usefulness of scintillation proxies derived from IGS data, through its comparison with data from dedicated scintillation monitors and its application to GNSS ... -
GPS derived amplitude scintillation proxy model: A case over a low latitude station in East Africa
Andima, Geoffrey; Amabayo, Emirant B.; Jurua, Edward; Cilliers, Pierre J. (Journal of Atmospheric and Solar–Terrestrial Physics, 2020-10)Ionospheric scintillation is quite a common phenomenon over the low latitude regions and in East Africa it is often monitored using measurements from the SCIntillation Network Decision Aid (SCINDA) receivers. The SCINDA ... -
Modeling of GPS total electron content over the African low-latitude region using empirical orthogonal functions
Andima, Geoffrey; Amabayo, Emirant B.; Jurua, Edward; Cilliers, Pierre J. (Annales Geophysicae Copernicus, 2019-01)In this paper, an empirical total electron content (TEC) model and trends in the TEC over the African low-latitude region are presented. GPS-derived TEC data from Malindi, Kenya (geographic coordinates 40.194_ E, 2.996_ ... -
Statistical characterization of equatorial plasma bubbles over East Africa
Abiriga, Faustine; Amabayo, Emirant B.; Jurua, Edward; Cilliers, Pierre J. (Journal of Atmospheric and Solar-Terrestrial Physics, 2020)Bubble-like structures that grow in the post-sunset F-region of the equatorial ionosphere have continued to raise concern and research interest among scientists. These structures, commonly referred to as Equatorial Plasma ... -
Validating the use of scintillation proxies to study ionospheric scintillation over the Ugandan region
Amabayo, Emirant B.; Jurua, Edward; Cilliers, PierreJ. (Journal of Atmospheric and Solar-Terrestrial Physics, 2015-03)In this study, we compare the standard scintillation indices (S4 and σΦ) from a SCINDA receiver with scintillation proxies (S4p and sDPR||) derived from two IGSGPS receivers. Amplitude (S4) and phase (σΦ) scintillation ...