The variations of Galactic Cosmic Ray (GCR) as compared with the behaviour of various solar activity indices, heliospheric parameters and the geomagnetic index Ap during 1999-2015, which covers part of cycles 23 and cycle 24 have been studied. Two sets of data were considered, c...
Open access
Research Article10.9734/psij/2020/v24i630198
Kingsley Chukwudi Okpala, Ernest Benjamin Ugwu, Okwudili Joseph Attah, Dominic Obiegbuna, Rose Chigoziri Anamezie & Friday Egbunu·Physical Science International Journal·2020
Changes in vertical total electron content (VTEC) over West Africa which were associated with four geomagnetic storms in 2015 have been studied. The spatial evolution of the quiet time TEC over West Africa for four months (vis; March, June, October and December) which may give ri...
Open access
Research Article10.9734/psij/2020/v24i530193
Monthly rainfall data from meteorological stations in Nigeria are analyzed from 1951 to 1992, to establish their relationship with some Tropical climate systems. The climate systems include Tropical South Atlantic (TSA) sea surface temperature index, North Atlantic Ocean (NAO) at...
Open access
Research Article10.9734/ijecc/2020/v10i730213