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Scirj Volume IX, Issue IX, September 2021 Edition ISSN: 2201-2796 Evaluation of Heat and Cold wave events over West Africa Ifeka Adolphus, Balogun Ifeoluwa A., Akinbobola Ademola, Balogun Richard A. Abstract: This study evaluated Heat and Cold wave events in the homogenous temperature regions over West Africa. ERA5 reanalysis daily minimum and maximum data from 1979-2018 were used as the surrogate observed data and Heat/cold wave events were calculated using 1979-2008 as a reference period. Results show that the retained four PCs explain 78.27% percentage of variance in the daily maximum temperature data for March, April and May. For the 1979-2008 period, 53.99% of variance is explained by the PC1, 14.52% of variance is explained by PC2, PC3 revealed 6.34% of variance and 3.42% of variance is explained by PC4. The retained four PCs explain 49.88 % percentage of variance in the daily maximum temperature data for June, July, August and September. 27.29% of variance is explained by PC1, 10.31% of variance is explained by PC2, PC3 revealed 6.28% and 5.80% of variance is explained by PC4 for the month of June, July, August and September. There are highly negative component loadings (<-0.5) which are located at along the southern Guinea savanna and the fringes of the coastal cities over West Africa for March, April and May (MAM) and June, July, August and September (JJAS). Generally, PC1 and PC2 depicted to be the major contributors in the temperature variations over the land, places with high PC loadings are expected to be hotter on days with high positive PC score and colder on days with highly negative PC score. Reference this Paper: Evaluation of Heat and Cold wave events over West Africa by Ifeka Adolphus, Balogun Ifeoluwa A., Akinbobola Ademola, Balogun Richard A. published at: "Scientific Research Journal (Scirj), Volume IX, Issue IX, September 2021 Edition, Page 22-37 ". Search Terms: Heatwaves, Cold waves, homogenous temperature regions, Guinea coast [Read Research Paper] [Full Screen] |
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