Zobrazeno 1 - 10
of 15
pro vyhledávání: '"O. K. Obrou"'
Publikováno v:
Annales Geophysicae, Vol 36, Pp 1161-1170 (2018)
In order to provide a scientific base to the NeQuick characterisation under disturbed conditions, the comparison of its performance for quiet and storm days is investigated in the southern mid-latitude. This investigation was realised using the tw
Externí odkaz:
https://doaj.org/article/2c14ad262f2f45a3aaaa2e5e5240f095
Autor:
V. V. Paznukhov, C. S. Carrano, P. H. Doherty, K. M. Groves, R. G. Caton, C. E. Valladares, G. K. Seemala, C. T. Bridgwood, J. Adeniyi, L. L. N. Amaeshi, B. Damtie, F. D'Ujanga Mutonyi, J. O. H. Ndeda, P. Baki, O. K. Obrou, B. Okere, G. M. Tsidu
Publikováno v:
Annales Geophysicae, Vol 30, Pp 675-682 (2012)
We report on the longitudinal, local time and seasonal occurrence of equatorial plasma bubbles (EPBs) and L band (GPS) scintillations over equatorial Africa. The measurements were made in 2010, as a first step toward establishing the climatology o
Externí odkaz:
https://doaj.org/article/531f54d21df449a88fd2526fdbff58c1
Publikováno v:
Annales Geophysicae, Vol 29, Pp 2225-2233 (2011)
It has been largely investigated and established that the DP2 events are enhanced at dip-equator compared to low latitudes. Studies by several authors showed various enhancement ratio values of DP2 amplitude at the dayside dip-equator relative to
Externí odkaz:
https://doaj.org/article/b3dab94d2ab94e76b858d0e7fc721b72
Autor:
K. Z. Zaka, A. T. Kobea, P. Assamoi, O. K. Obrou, V. Doumbia, K. Boka, B. J.-P. Adohi, N. M. Mene
Publikováno v:
Annales Geophysicae, Vol 27, Pp 3523-3536 (2009)
During magnetic storms, the auroral electrojets intensification affects the thermospheric circulation on a global scale. This process which leads to electric field and current disturbance at middle and low latitudes, on the quiet day after the end
Externí odkaz:
https://doaj.org/article/dd562a108928491ba7372bc879952678
Autor:
Tshimangadzo Merline Matamba, Babatunde Rabiu, G. K. Seemala, Joshua Benjamin Wisdom, Daniel Okoh, John Bosco Habarulema, O. K. Obrou, Joseph Olwendo
Publikováno v:
Space Weather. 18
Publikováno v:
Space Weather. 16:230-244
The F2-layer peak electron density (NmF2) was investigated over Korhogo (Geomagnetic: 1.26°S, 67.38°E), a station near the magnetic equator in the African sector. Data for 1996 and 2000 were respectively categorised into low solar quiet (LSQ) and d
Autor:
C. M. Biouele, E. R. de Paula, Endawoke Yizengaw, Eftyhia Zesta, M. Magoun, O. K. Obrou, A. B. Rabiu, Mark B. Moldwin, Rezy Pradipta, Z. Bamba
Publikováno v:
Geophysical Research Letters. 43:7364-7372
The response of equatorial ionosphere to the magnetospheric origin DP 2 current system fluctuations is examined using ground-based multiinstrument observations. The interaction between the solar wind and fluctuations of the interplanetary magnetic fi
Autor:
P. Assamoi, N. M. Mene, A. T. Kobea, Christine Amory-Mazaudier, K. Boka, O. K. Obrou, K. Z. Zaka
Publikováno v:
Annales Geophysicae
Annales Geophysicae, 2011, pp.1-9. ⟨10.5194/angeo-29-2225-2011⟩
Annales Geophysicae, Vol 29, Pp 2225-2233 (2011)
Annales Geophysicae, European Geosciences Union, 2011, pp.1-9. ⟨10.5194/angeo-29-2225-2011⟩
Annales Geophysicae, 2011, pp.1-9. ⟨10.5194/angeo-29-2225-2011⟩
Annales Geophysicae, Vol 29, Pp 2225-2233 (2011)
Annales Geophysicae, European Geosciences Union, 2011, pp.1-9. ⟨10.5194/angeo-29-2225-2011⟩
It has been largely investigated and established that the DP2 events are enhanced at dip-equator compared to low latitudes. Studies by several authors showed various enhancement ratio values of DP2 amplitude at the dayside dip-equator relative to tho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0127c32827faa9668de5b0ec6e7385ca
https://www.ann-geophys.net/29/2225/2011/
https://www.ann-geophys.net/29/2225/2011/
Publikováno v:
Journal of Physical Science and Application. 8
Autor:
Patricia H. Doherty, C. Bridgwood, Charles S. Carrano, Ronald G. Caton, V. V. Paznukhov, F. D'Ujanga Mutonyi, G. K. Seemala, G. M. Tsidu, Jared O. H. Ndeda, Bonaventure Okere, O. K. Obrou, Cesar E. Valladares, Paul Baki, J.O. Adeniyi, Keith M. Groves, L. L. N. Amaeshi, Baylie Damtie
Publikováno v:
Annales Geophysicae, Vol 30, Pp 675-682 (2012)
We report on the longitudinal, local time and seasonal occurrence of equatorial plasma bubbles (EPBs) and L band (GPS) scintillations over equatorial Africa. The measurements were made in 2010, as a first step toward establishing the climatology of i