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2017 | 87 | 191-204
Article title

The Links between Variations in Climate Patterns and ITCZ Position over Nigeria

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The analysis of the observed 30 years data that include the monthly precipitation, wind speed and solar radiation from Maiduguri, Abuja, Ikeja and Port Harcourt is done to estimate the approximate shift in the Inter-Tropical Convergence Zone (ITCZ) mean position over Nigeria. The data are separated into three decades (1981-1990, 1991-2000 and 2001-2010) and their monthly mean values are compared with each other and with the corresponding magnitudes over the whole period (1981-2010). The results indicate that the overall precipitation increases southward across the country while the annual mean intensity rises over the decades in all the selected locations. Using the extreme decades, the magnitude of the rainfall in 2001-2010 is higher than the corresponding values in 1981-1990 by 20.84 mm, 9.87 mm, 18.40 mm and 6.89 mm in Maiduguri, Abuja, Ikeja (Lagos) and Port Harcourt respectively. Further investigation in all the locations showed periods of elevated monthly rainfall in the recent decades than other periods; the magnitudes compared to 1981-1990 are between 48.6mm-78.4mm which are much higher than the annual mean intensities while few months with very low rainfall are observed in Abuja and Port Harcourt. As expected, reverse pattern is seen in the wind speed which is generally lower in 2001-2010 than in 1981-1990. The rising magnitude of the precipitation over the decades imply that the ITCZ must have been shifting slightly over the periods to a more northern extreme in 2001-2010, causing northward spread of the rainfall which raises the overall intensity of the rainfall across Nigeria. A persistent northward shift in the ITCZ position with increasing magnitude of the associated rainfall could raise the current severity of soil erosion, frequency of flooding that might cause severe damages and paralyze businesses in Nigeria under such a future climate change. Hence, availability of data with advance technology for studying fluctuations in the ITCZ position might improve weather forecast that could favour farm yield and save lives and properties as climate changes in the future.
Physical description
  • Department of Physics, Faculty of Science, Ekiti State University, Ado – Ekiti, Ekiti State, Nigeria
  • [1] B. Abaje, C. Ndabula, A. H. Garba, Is The Changing Rainfall Patterns Of Kano State And Its Adverse Impacts An Indication Of Climate Change? European Scientific Journal, vol. 10, No 2, Jan. 2014
  • [2] Philander, S. G. H., D. Gu, D. Halpern, G. Lambert, N.-C. Lau, T. Li, and R. C. Pacanowski, The role of low-level stratus clouds in keeping the ITCZ mostly north of the equator, J. Clim., Vol. 9, 1996, No. 12, 2958-2972.
  • [3] Xie S.-P., Miyama, T., Wang Y., Xu H., deSzoeke S. P., Small R.J., Richards, K. J., Mochizuki T., and T. Awaji, A regional ocean-atmosphere model for eastern Pacific climate: towards reducing tropical biases, J. Clim., 20, 1504-1522, 2007
  • [4] Hiremath, K. M. et al., Indian summer monsoon rainfall: dancing with the tunes of the sun, New Astron. 35, 8-19, 2015
  • [5] Okonkwo G. N., Nwokoye A. O. C., Estimating global solar radiation from temperature data in Minna location. Eur. Sci. J. 2014, 10, 255–264.
  • [6] Ododo, J. C., New models for the prediction of solar radiation in Nigeria, in Proceedings of the 2nd OAU/STRC Conference on New, Renewable and Solar Energies, Bamako, Mali, 16–20 May 1994.
  • [7] Adler, R. F., G. J. Huffman, A. Chang, R. Ferraro, P. Xie, J. Janowiak, B. Rudolf, U. Schneider, S. Curtis, D. Bolvin, A. Gruber, J. Susskind, and P. Arkin, The Version 2 Global Precipitation Climatology Project (GPCP) Monthly Precipitation Analysis (1979-Present), 2003, J. Hydrometeor. 4, 1147-1167.
  • [8] Udo, I.A, Okujagu, C. U., “Assessment of Inter-Tropical Convergence Zone (ITCZ) Impact on Precipitation in Six Locations in Nigeria,” International Journal of Science and Research (IJSR), Vol. 3 Issue 6, June 2014
  • [9] Nkwunonwo U. C., Malcolm W., Brian B., Flooding and Flood Risk Reduction in Nigeria: Cardinal Gaps, J Geogr Nat Disast 5: 136, doi:10.4172/2167-0587.1000136
  • [10] Houston D., Werritty A., Bassett D., Geddes A., Hoolachan A., et al., Pluvial (rain-related) flooding in urban areas: the invincible hazard, York, UK: Joseph Rowntree Foundation, 2011
  • [11] Merz B., Thieken A. H., Gocht M., Flood risk mapping at the local scale: concepts and challenges, in Flood risk management in Europe, Springer, Netherlands, 2007.
  • [12] Kalnay Eugenia, Cai Ming. Impact of urbanization and land-use change on climate, Nature 423.6939 (May 29, 2003), 528-31.
  • [13] Virginia H. Dale. The relationship between land-use change and climate change. Ecological Applications Volume 7, Issue 3, August 1997
  • Pages 753–769, DOI:10.1890/1051-0761(1997)007[0753:TRBLUC]2.0.CO;2
  • [14] Urban Frank E., Cole Julia E., Overpeck Jonathan T., Influence of mean climate change on climate variability from a 155-year tropical Pacific coral record. Nature 407.6807 (Oct 26, 2000): 989-93
  • [15] Zhi Li, Wen-zhao Liu, Xun-chang Zhang, Fen-li Zheng. Impacts of land use change and climate variability on hydrology in an agricultural catchment on the Loess Plateau of China. Journal of Hydrology Volume 377, Issues 1–2, 20 October 2009, Pages 35-42
  • [16] B. C. C. van der Zwaan, R. Gerlagh, G. Klaassen, L. Schrattenholzer. Endogenous technological change in climate change modeling. Energy Economics, Volume 24, Issue 1, January 2002, Pages 1-19,
  • [17] Pytrik Reidsma, Frank Ewert, Alfons Oude Lansink, Rik Leemans, Adaptation to climate change and climate variability in European agriculture: The importance of farm level responses. European Journal of Agronomy, Volume 32, Issue 1, January 2010, Pages 91-102
  • [18] James E. Hansen. Sir John Houghton: Global Warming: The Complete Briefing, 2nd edition. Journal of Atmospheric Chemistry, July 1998, Volume 30, Issue 3, pp 409–412
  • [19] Lawrence H. Goulder, Koshy Mathai, Optimal CO2 Abatement in the Presence of Induced Technological Change. Journal of Environmental Economics and Management Volume 39, Issue 1, January 2000, Pages 1-38
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