Analysis of Extreme Temperature Variability in Rwanda

Authors

  • Protais Seshaba

    Department of Science and Humanities, Protestant Institute of Arts and Social Sciences, P O Box 619, Huye, Rwanda

  • Edouard Singirankabo

    Department of Mathematics, Science and Physical Education, University of Rwanda, College of Education, P O Box 55, Rukara, Rwanda

  • Donat Nsabimana

    Department of Forestry, University of Rwanda, College of Science and Technology, P O Box 55, Huye, Rwanda

DOI:

https://doi.org/10.30564/jasr.v7i1.6107
Received: 27 November 2023 | Revised: 15 January 2024 | Accepted: 22 January 2024 | Published Online: 27 January 2024

Abstract

The temperature is one of the most important factors in weather and climate forecasting. Studying its behaviour is crucial to understanding climate variability, which could vary spatially and temporally at local, regional, and global scales. Several recent studies on air temperature findings show that the Earth' s near surface air temperature increased between 0.6 °C and 0.8 °C throughout the twentieth century. Using temperature records from ten meteorological stations, this study examined climate variability in Rwanda from the 1930s to 2014. The air temperature data were collected from Meteo Rwanda. Before making the analysis, the authors used software, such as Excel 2007 and INSTAT to control the quality of the raw data. The analysis of maxima and minima indicated that the trends of maximum air temperature were positive and significant at height meteorological stations, whereas the trends for minimum air temperature were found to be at 10 meteorological stations. For all parameters analysed, Kigali Airport meteorological station indicated the higher significance of the trends. The majority of meteorological stations showed an increase in both hot days and nights, confirming Rwanda' s warming over time. The analysis of average seasonal air temperature showed almost similar trends even though not all were significant. This similarity in trends could be attributed to the fact that Rwanda' s short and long dry seasons coincide with rainy seasons.

Keywords:

Climate variability; Air temperature; Solar radiation; Meteorological station

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How to Cite

Seshaba, P., Singirankabo, E., & Nsabimana, D. (2024). Analysis of Extreme Temperature Variability in Rwanda: Climate variability, Air temperature, Solar Radiation, Meteorological station. Journal of Atmospheric Science Research, 7(1), 74–89. https://doi.org/10.30564/jasr.v7i1.6107

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