Statistical analysis of TEC perturbations over a low latitude region during 2009–2013 ascending solar activity phase

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dc.contributor.authorAndima, Geoffrey
dc.contributor.authorJurua, Edward
dc.contributor.authorAmabayo, Emirant Bertillas
dc.contributor.authorHabarulema, John Bosco
dc.date.accessioned2023-05-27T15:49:17Z
dc.date.available2023-05-27T15:49:17Z
dc.date.issued2015
dc.description.abstractTotal Electron Content (TEC) perturbations are manifestations of ionospheric irregularities which induce fluctuations in the amplitude and phase of trans-ionospheric radio signals. TEC data derived from Global Positioning System (GPS) receivers at Mbarara (Geogra. 0.60 N, 30.74 E and Geomag. 10.22 N, 102.36 E) and Entebbe (Geogra. 0.04 N, 32.44 E and Geomag. 9.53 N, 104.10 E) from 2009 to 2013 were used to study TEC perturbations over the low latitude region of Uganda. The results show that the frequency of occurrence of TEC perturbations of >4 TECU increased steadily from 2009 to 2013. TEC perturbations with amplitude <4 TECU occurred at all times. The likelihood of TEC perturbations exceeding 6 TECU was higher during the equinoxes than during the solstices in most of the years. Comparison of TEC perturbations with 10.7 cm solar radio flux (F10.7) data showed a weak positive correlation with this solar proxy. Wavelet analysis performed on the TEC perturbations revealed wave-like oscillations with periods typical of Traveling Ionospheric Disturbances (TID). These wave-like structures (WLS) dominated from 13:00 to 19:00 LT for most of the years analyzed.en_US
dc.identifier.citationAndima, G., Jurua, E., Amabayo, E. B., & Habarulema, J. B. (2015). Statistical analysis of TEC perturbations over a low latitude region during 2009–2013 ascending solar activity phase. Advances in Space Research, 56(11), 2542-2551. http://dx.doi.org/10.1016/j.asr.2015.09.021en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.asr.2015.09.021
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/8825
dc.language.isoenen_US
dc.publisherAdvances in Space Researchen_US
dc.subjectTotal Electron Contenten_US
dc.subjectLow-latitude TEC perturbationsen_US
dc.subjectTraveling Ionospheric Disturbancesen_US
dc.titleStatistical analysis of TEC perturbations over a low latitude region during 2009–2013 ascending solar activity phaseen_US
dc.typeArticleen_US
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