Evaluation of Past and Future Extreme Rainfall Characteristics over Eastern Uganda

Journal of Environmental and Agricultural Sciences (JEAS). Ahmad et al., 2019. Volume 18: 38-49

Open Access – Research Article

Evaluation of Past and Future Extreme Rainfall Characteristics over Eastern Uganda

Nimusiima Alex 1,*, Kisembe Jesse 1, Nakyembe Neoline 1
1 Department of Geography, Geo-Informatics and Climatic Sciences, Makerere University, Kampala, Uganda

Abstract: Weather and climate are very important to everyday life because they affect almost every sector of the economy. Climate change associated with increased weather and climate extremes and its associated impacts has become equally important. These weather extremes can be characterized in terms of indices involving precipitation intensity, duration and frequency. This study examined the past and future characteristics of extreme rainfall over Eastern Uganda with 1981-2010 taken as baseline period and 2021-2050 representing a future period. Annual trends in four precipitation indices were analyzed: number of days with precipitation ≥20mm and 50 mm, very wet day precipitation quantity and simple daily intensity index. Linear trends were calculated by using the least squares fit and significance of the trends were identified using the Student t-test. The results showed an overall decreasing trend of all rainfall indices during the period of 1981-2010. Projected trends indicated positive trends in all the indices except the Simple daily intensity index which was projected to have negative trends under RCP4.5. Projected shifts in the mean values also indicated significant increments in all indices. These results indicate that rainfall extremes will continue in the future and therefore it calls for decision-makers to design appropriate preparedness and mitigation strategies in Eastern Uganda.
Keywords: Climate change, climatic extreme; extreme rainfall; future climate projection.

*Corresponding author: Nimusiima Alex

Cite this article as:

Alex, N., K. Jesse and N. Neoline. 2019. Evaluation of past and future extreme rainfall characteristics over Eastern Uganda. Journal of Environmental & Agricultural Sciences. 18:38-49. [Abstract] [View Full-Text] [Citations]

Copyright © Alex et al., 2019. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium provided the original author and source are appropriately cited and credited.

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Amin, A., W. Nasim, M. Mubeen, S. Sarwar, P. Urich, A. Ahmad, A. Wajid, T. Khaliq, F. Rasul, H.M. Hammad et al. 2018. Regional climate assessment of precipitation and temperature in Southern Punjab (Pakistan) using SimCLIM climate model for different temporal scales. Theor. Appl. Climatol. 131(1-2): 121-131. https://doi.org/10.1007/s00704-016-1960-1

Bamweyana, I. and L.M. Kayondo. 2018. Spatially explicit modelling of extreme weather and climate events hot spots for cumulative climate change in Uganda. South African J. Geomatics. 7(1): 90-101. https://doi.org/10.4314/sajg.v7i1.7

Below, T.B, J.C. Schmid, and S.Sieber . 2015. Farmers’ knowledge and perception of climatic risks and options for climate change adaptation: a case study from two Tanzanian villages. Reg. Environ. Change. 15:1169–1180.

Borges, P.d.A., C. Bernhofer and R. Rodrigues. 2018. Extreme rainfall indices in Distrito Federal, Brazil: Trends and links with El Niño southern oscillation and Madden–Julian oscillation. Int. J. Climatol. 38(12): 4550-4567.

Cutter, S.L. 2018. Compound, cascading, or complex disasters: What’s in a name? Environ.: Sci. Policy Sustaina. Develop. 60(6): 16-25.

Darand, M., M. Dostkamyan and M.I.A. Rehmani. 2017. Spatial autocorrelation analysis of extreme precipitation in Iran. Russian Meteorol. Hydrol. 42(6): 415-424.

Devkota, S., N.M. Shakya, K. Sudmeier-Rieux, M. Jaboyedoff, C.J. Van Westen, B.G. Mcadoo and A. Adhikari. 2018. Development of monsoonal rainfall intensity-duration-frequency (IDF) relationship and empirical model for data-scarce situations: The case of the Central-Western Hills (Panchase Region) of Nepal. Hydrology. 5(2): 27.

Diem, J.E, J. Hartter, S.J. Ryan and M.W. Palace. 2014 Validation of satellite rainfall products for western Uganda. J Hydrometeorol 15:2030–2038.

Egeru, A., B. Barasa, J. Nampijja, A. Siya, M.T. Makooma and M.G.J. Majaliwa. 2019. Past, present and future climate trends under varied Representative Concentration Pathways for a sub-humid region in Uganda. Climate. 7(3): 35.

Gitau, W., P. Camberlin, L. Ogallo and E. Bosire. 2018. Trends of intraseasonal descriptors of wet and dry spells over equatorial eastern Africa. Int. J. Climatol. 38(3): 1189-1200.

Hao, Z., V.P. Singh and F. Hao. 2018. Compound extremes in hydroclimatology: A review. Water. 10(6): 718.

Haylock, M. R., T.C.Peterson, L.M.Alves, T. Ambrizzi, Y.M.T. Anunciação, J. Baez and L.A. Vincent. 2006. Trends in total and extreme South American rainfall in 1960 – 2000 and links with sea surface temperature. J. Clim. 19: 1490–1512.

IPCC, 2013 . The Physical Science Basis; Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, United Kingdom

Jury, M.R. 2018. Uganda rainfall variability and prediction. Theor. Appl. Climatol. 132(3): 905-919.

Kaggwa, R., R. Hogan and B. Hall. 2009. Enhancing the contribution of weather,climate and climate change to growth, Employment and prosperity. Environment and natural Resources Report Series. Kampala, Uganda.
KCCA. 2015. Energy and Climate Profile. Kampala.

Kisembe, J., A. Favre, A. Dosio, C. Lennard, G. Sabiiti and A. Nimusiima. 2019. Evaluation of rainfall simulations over Uganda in CORDEX regional climate models. Theor. Appl. Climatol. DOI: 10.1007/s00704-018-2643-x

Letta, M., R.S.J. Tol. 2019. Weather, climate and total factor productivity. Environ. Resour. Econ. 73(1): 283-305.

Majaliwa, J.G.M., M.M. Tenywa, D. Bamanya, W. Majugu, P. Isabirye, C. Nandozi, J. Nampijja, P. Musinguzi, A. Nimusiima, K.C. Luswata et al. 2015 Characterization of historical seasonal and annual rainfall and temperature trends in selected climatological homogeneous rainfall zones of Uganda. Global J. Sci. Front. Res. 15(4):21-40.

McPhillips, L.E., H. Chang, M.V. Chester, Y. Depietri, E. Friedman, N.B. Grimm, J.S. Kominoski, T. McPhearson, P. Méndez-Lázaro, E.J. Rosi and J.S. Shiva. 2018. Defining extreme events: A cross-disciplinary review. Earth’s Future. 6(3): 441-455.

Moss, R.H., J.A. Edmonds, K.A. Hibbard, M.R. Manning, S.K. Rose, D.P. Van Vuuren, T.R. Carter, S. Emori, M. Kainuma, T. Kram et al. 2010. The next generation of scenarios for climate change research and assessment. Nature. 463: 747-756.

Mugume, I., M.D.S. Mesquita,C. Basalirwa,Y. Bamutaze, J. Reuder, A. Nimusiima,D. Waiswa, G. Mujuni, T. Sulin and T.J. Ngailo. 2016. Patterns of dekadal rainfall variation over a selected region in Lake Victoria Basin, Uganda. Atmosphere. 7(11): 150.

Nabikolo, D., B. Bashaasha, M.N. Mangheni and J.G.M.Majaliwa. 2012. Determinants of climate change adaptation among male and female headed farm households in Eastern Uganda. African Crop Sci. J. 20: 203–212.

Nangombe, S., T. Zhou, W. Zhang, B. Wu, S. Hu, L. Zou and D. Li. 2018. Record-breaking climate extremes in Africa under stabilized 1.5 °C and 2 °C global warming scenarios. Nat. Clim. Change. 8(5): 375-380.

NEMA. 2007. State of the Environment Report for Uganda 2006/2007. Kampala.

Nikulin, G., C. Jones, F. Giorgi, G. Asrar, M. Büchner, R. Cerezo-Mota, O.B. Christensen, M. Déqué, J. Fernandez, A. Hänsler and E.Van Meijgaard. 2012. Precipitation climatology in an ensemble of CORDEX-Africa regional climate simulations. J. Climate. 25(18): 6057-6078.

Nsubuga, F.W. and H. Rautenbach. 2018. Climate change and variability: a review of what is known and ought to be known for Uganda. Int. J. Clim. Change Strat. Manag. 10(5): 752-771.

Omondi, P. A., J.L. Awange, E. Forootan, L.A. Ogallo, R. Barakiza, G.B. Girmaw and E. Komutunga. 2013. Changes in temperature and precipitation extremes over the Greater Horn of Africa region from 1961 to 2010. Int. J. Climatol. 34(4): 1262–1277.

Ongoma, V., H. Chen and G.W.Omony. 2018. Variability of extreme weather events over the equatorial East Africa, a case study of rainfall in Kenya and Uganda. Theor. Appl. Climatol. 131 (1): 295-308.

Rehmani, M.I.A., G. Wei, N. Hussain, C. Ding, G. Li, Z. Liu, S. Wang and Y. Ding. 2014. Yield and quality responses of two indica rice hybrids to post-anthesis asymmetric day and night open-field warming in lower reaches of Yangtze River delta. Field Crops Res. 156: 231-241.

Sagero, P.O., C.A. Shisanya and G.L. Makokha. 2018. Investigation of rainfall variability over Kenya (1950-2012). J. Environ. Agric. Sci. 14: 1-15.

Santos, C. A. 2014. Recent changes in temperature and precipitation extremes in an ecological reserve in federal district, Brazil. Revista Brasileira de Meteorologia. 29(1): 13–20.

Shongwe, M. E., G.J.Van Oldenborgh, B. Van den Hurk and M. Van Aalst. 2011. Projected changes in mean and extreme precipitation in Africa under global warming. Part II: East Africa. J. Climate 24(14) : 3718-3733.

Stampone, M. D., J. Hartter, C.A. Chapman and S.J. Ryan. 2011. Trends and variability in localized precipitation around Kibale National Park, Uganda, Africa. Res. J. Environ. Earth Sci. 3(1): 14–23.

Sun, W., X. Mu, X.Song, D. Wu, A. Cheng and B.Qiu. 2016. Changes in extreme temperature and precipitation events in the Loess Plateau ( China ) during 1960 – 2013 under global warming. Atmos. Res. 168: 33–48

Tajbar, S., B. Begum, L. Rafiq. 2018. TRMM-Precipitation data for estimating seasonal and annual trends over Peshawar city. J. Environ. Agric. Sci. 14: 22-30.

Tramblay, Y., S. E.L. Adlouni and E.Servat. 2013. Trends and variability in extreme precipitation indices over Maghreb countries. Nat. Hazard. Earth Sys. Sci. 13: 3235–3248.

Tumushabe, J.T. 2018. Climate Change, Food Security and Sustainable Development in Africa. In: Oloruntoba, S.O., Falola, T. (Eds.), The Palgrave Handbook of African Politics, Governance and Development. Palgrave Macmillan US, New York, p. 853-868.

UBOS, 2006. Uganda population and housing census; Analytical Report: Population size and distribution, 2002. Kampala.

Wang, X. L. 2008a. Accounting for autocorrelation in detecting mean-shifts in climate data series using the penalized maximal t or F test. J. Appl. Meteorol. Climatol. 47: 2423–2444.

Wang, X. L. 2008b. Penalized maximal F-test for detecting undocumented mean-shifts without trend-change. J. Appl. Meteorol. Climatol. 25(3): 368–384.

Wang, X. L.,H. Chen, Y. Wu, Y. Feng and Q.Pu. 2010. New Techniques for the detection and adjustment of shifts in daily precipitation data series. J. Appl. Meteorol. Climatol. 49(12): 2416–2436.

Zhang, X and F. Yang. 2004. RClimDex (1.0)Use rManual. Climate Research Branch Environment, Ontario, Canada.

Zhang, X., G.Hegerl, F.W. Zwiers and K. Jesse. 2005. Avoiding inhomogeneity in percentile-based indices of temperature extremes. J. Climate. 18: 1641–1651.

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