Zobrazeno 1 - 10
of 41
pro vyhledávání: '"E.O. Somoye"'
Autor:
Oluwole Oyedokun, Daniel Okoh, Sunil K. Sharma, Olugbenga Ogunmodimu, E. O. Onori, Aghogho Ogwala, E.O. Somoye, Sampad Kumar Panda
Publikováno v:
Advances in Space Research. 68:2160-2176
Ionosphere plays crucial role in satellite communication as well as the modern space-based positioning, navigation and timing applications. Progressive exploitation of ground and space-based observations across the African region has relatively stren
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::034e551c432ab1329879ae6b70fea168
https://doi.org/10.1016/j.asr.2020.07.013
https://doi.org/10.1016/j.asr.2020.07.013
Akademický článek
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Autor:
Olugbenga Ogunmodimu, E. O. Onori, Oluwole Oyedokun, Rasaq Adewemimo Adeniji-Adele, Aghogho Ogwala, E.O. Somoye
Publikováno v:
Annales Geophysicae, Vol 37, Pp 775-789 (2019)
The ionosphere is the major error source for the signals of global positioning system (GPS) satellites. In the analysis of GPS measurements, ionospheric error is assumed to be somewhat of a nuisance. The error induced by the ionosphere is proportiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::618bc06cc9e679f716ca2061ebdb550b
https://www.ann-geophys.net/37/775/2019/angeo-37-775-2019.pdf
https://www.ann-geophys.net/37/775/2019/angeo-37-775-2019.pdf
Akademický článek
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Autor:
Ernest Iheonu, Olugbenga Ogunmodimu, E.O. Somoye, Eugene Oghenakpobo Onori, Rasaq Adewemimo Adeniji-Adele, Oluwole Oyedokun, Aghogho Ogwala
Satellite radio signals are affected by the presence of electrons in the earth’s upper atmosphere (ionosphere). The more electrons in the path of the satellite radio signals, the more the impact on the accuracy of satellite navigation systems such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c292b3ec57431cfcf0b6534fd51ebd14
https://www.ann-geophys-discuss.net/angeo-2018-95/
https://www.ann-geophys-discuss.net/angeo-2018-95/
Comparison of GPS-TEC observations over Addis Ababa with IRI-2012 model predictions during 2010–2013
Autor:
S.P. Karia, E.W. Ojutalayo, Andrew O. Akala, A.O. Adewale, E.O. Somoye, Patricia H. Doherty, Daniel Okoh, Raphael Idolor
Publikováno v:
Advances in Space Research. 56:1686-1698
This study presents Global Positioning System-Total Electron Content (GPS-TEC) observations over Addis Ababa (Lat: 9.03°N Lon: 38.77°E Mag. lat: 0.18°N) and an evaluation of the accuracy of International Reference Ionosphere-2012 (IRI-2012) model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a82dbdf9f114fbf55ad230282b05e49f
https://doi.org/10.1016/j.asr.2015.07.017
https://doi.org/10.1016/j.asr.2015.07.017
Autor:
Charles S. Carrano, Patricia H. Doherty, C. Bridgwood, E.O. Somoye, G. K. Seemala, Andrew O. Akala, Keith M. Groves, L. L. N. Amaeshi
Publikováno v:
Advances in Space Research. 53:37-47
This study characterizes equatorial scintillations at L-band frequency over Lagos, Nigeria during the minimum and ascending phases of solar cycle 24. Three years (2009–2011) of amplitude scintillation data were used for the investigation. The data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53ea94f09a5b025232fb431ed8e69f9a
https://doi.org/10.1016/j.asr.2013.09.034
https://doi.org/10.1016/j.asr.2013.09.034
Autor:
E.E. Iheonu, E.O. Somoye, E. O. Onori, Aghogho Ogwala, Rasaq Adewemimo Adeniji-Adele, Andrew O. Akala
Publikováno v:
Advances in Space Research. 52:1261-1266
This paper reviews the variability of equatorial/low latitude F2 characteristics with emphasis on the most general results reported by authors. On a general note, diurnal variation of ionospheric F2 layer characteristics coefficient of variability (C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e731a17485850c1161f2d23f8a666595
https://doi.org/10.1016/j.asr.2013.06.031
https://doi.org/10.1016/j.asr.2013.06.031
Autor:
E. O. Onori, E.O. Somoye, Aghogho Ogwala, A. O. Karimu, Andrew O. Akala, Rasaq Adewemimo Adeniji-Adele
Publikováno v:
Radio Science. 48:513-518
[1] Diurnal, seasonal, and solar cycle effects of the variability (VR) of the critical frequency of sporadic E layer (foEsq) are investigated at Ibadan (7.4°N, 3.9°E, 6°S dip) in the African sector during high solar activity (HSA) year of 1958 (Rz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57138457fb883c4eb83baaac91819a57
https://doi.org/10.1002/rds.20057
https://doi.org/10.1002/rds.20057
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 98:50-62
This study presents the response of African equatorial GPS-TEC to intense geomagnetic storms that occurred during the ascending phase (2011–2012) of solar cycle 24. Specifically, four intense geomagnetic storms were considered: September 26–27, 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ac832e5e31998137603b4f55b4b8772
https://doi.org/10.1016/j.jastp.2013.02.006
https://doi.org/10.1016/j.jastp.2013.02.006