Spatiotemporal Variability of Temperature, Relative Humidity and Rainfall in Different Altitudes of Lower Lake Victoria Basin, Kenya
DOI:
https://doi.org/10.47941/jcp.1059Abstract
Purpose: Global Climate Variability and Change are among environmental challenges with adverse consequences in the world. Their impacts include heightened temperatures, heightened or lowered rainfall and Relative Humidity. Those impacts depend on a place or how sensitive the people are. Examples of variations at the global scale which do influence local climate elements include: North Atlantic Oscillation (NOA), El Niño Southern Oscillation (ENSO), and Madden-Julian Oscillation. Lower Lake Victoria Basin (LLVB), Kenya was suspected to experience such variations differently due to varied altitudes. This study sought to investigate variability of selected climate elements in different altitudes of the LLVB, Kenya.
Methodology: Meteorological data were obtained per county i.e. Migori - South Nyanza (SONY) Central Meteorological Station, Kisumu - Kisumu Airport Meteorological Station and Kakamega -Mumias Sugar Company (MSC) Meteorological Station. Data for the three selected climate parameters were collected for twenty years except Relative Humidity from Kisumu Airport which was available for only 12 years (2009-2020). ANOVA, Shapiro Wilk W test, Tukeys Honest Significance Difference (HSD) test, Time Series and Pearson's Correlation Coefficient were used for analysis.
Findings: The findings showed that the elements significantly varied: Temperature F = 120.87, P = 0.0001; rainfall (F = 24.56, P = 0.000 and Relative Humidity (RH) F = 30.37, P = 0.0001. Temperature means correlated with altitudes revealed a negative correlation (r = - 0.896). Extreme events were observed in rainfall.
Unique Contribution to Theory, Policy and Practices: Extreme events of rainfall, increasing trends of selected climate parameters were observed in the study area. These were evidence that climate change has already become an aspect of concern in the study area. Impacts of such extreme events should be investigated to help construct mitigative and adaptive strategies which should be implemented early enough to prevent unwanted outcomes, otherwise similar investigations should be conducted to establish situations elsewhere at different altitudes.
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References
Alfthan, B., Gjerdi, H., Schoolmeester, T., Agrawal, N. K., Andresen, M., Gjerdi, H. L., ...& Gupta, N. (2018). Mountain adaptation outlook series: Outlook on climate change adaptation in the Hindu Kush Himalaya.
De Alban, J., Connette, G., Oswald, P., & Webb, E. (2018). Combined Landsat and L-band SAR data improves land cover classification and change detection in dynamic tropical landscapes. Remote Sensing, 10(2), 306.
Dinse, K., Read, J., &Scavia, D. (2009). Preparing for climate change in the Great Lakes region.Michigan Sea Grant, Ann Arbor.
Emrouznejad, A., & Yang, G. L. (2018). A survey and analysis of the first 40 years of scholarly literature in DEA: 1978–2016. Socio-Economic Planning Sciences, 61, 4-8.
Evans, W. O., Mukhovi, S. N., &Nyandega, I. A. (2020). The spatial and temporal characteristics of rainfall over the Lake Victoria Basin of Kenya in 1987-2016.Atmospheric and Climate Sciences, 10(2), 240-257.
Hamel, M. J., Adazu, K., Obor, D., Sewe, M., Vulule, J., Williamson, J. M., ...&Laserson, K. F. (2011). A reversal in reductions of child mortality in western Kenya, 2003–2009.The American journal of tropical medicine and hygiene, 85(4), 597-605.
Herrero, M. T., Ringler, C., Steeg, J. V. D., Thornton, P. K., Zhu, T., Bryan, E., ... &Notenbaert, A. M. O. (2010). Climate variability and climate change and their impacts on Kenya’s agricultural sector.
Kenya Government. (1970). National Atlas of Kenya.
Kerandi, N. M., Laux, P., Arnault, J., &Kunstmann, H. (2017). Performance of the WRF model to simulate the seasonal and interannual variability of hydrometeorological variables in East Africa: a case study for the Tana River basin in Kenya. Theoretical and Applied Climatology, 130(1-2), 401-418.
Kizza, M., Rodhe, A., Xu, C. Y., Ntale, H. K., &Halldin, S. (2009). Temporal rainfall variability in the Lake Victoria Basin in East Africa during the twentieth century.Theoretical and applied climatology, 98(1), 119-135.
Lake Victoria Basin Commission (LVBC). (2018–2023). Climate change adaptation strategy and action plan.
Mwagiru, W. (1986). Planning for settlement in rural regions: the case of spontaneous settlements in Kenya,’. Spontaneous Settlement Formation in Rural Regions, Volume Two: Case Studies, 3-12.
Nicholson, S. E. (2017). Climate and climatic variability of rainfall over eastern Africa. Reviews of Geophysics, 55(3), 590-635.
Nilsson, M., Sie, A., Muindi, K., Bunker, A., Ingole, V., &Ebi, K. L. (2021). Weather, climate, and climate change research to protect human health in sub-Saharan Africa and South Asia. Global Health Action, 14(sup1), 1984014.
Okuneye, K., Abdelrazec, A., &Gumel, A. B. (2018). Mathematical analysis of a weather-driven model for the population ecology of mosquitoes. Mathematical Biosciences & Engineering, 15(1), 57-93.
Oxborough, R. M. (2016). Trends in US President’s Malaria Initiative-funded indoor residual spray coverage and insecticide choice in sub-Saharan Africa (2008–2015): urgent need for affordable, long-lasting insecticides. Malaria journal, 15(1), 146.
Perkins, J. H. (2017). Changing energy: The transition to a sustainable future. University of California.
World Health Organization. (2014). Malaria: fact sheet (No. WHO-EM/MAC/035/E).
Zhongming, Z., Linong, L., Xiaona, Y., Wangqiang, Z., & Wei, L. (2021). WMO Provisional Report on the State of the Global Climate 2021.
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Copyright (c) 2022 Samwel Odhiambo Olela, Professor George L. Makokha, Doctor Kennedy Obiero
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